Boulder Daily Climatology and Daily Records
The average high and low temperature as well as the record for each date for the high (highest daily maximum and highest daily minimum) as well as record lowest daily minimum and daily maximum are available for each date (divided into monthly sections). Snow records are from 1948 onward and temperature from 1897. Hail is counted for the purposes of records. Temperatures are in degrees Fahrenheit and snow depths are in inches as those are the unit of measurement.
Jump to Month
January | February | March | April | May | June |
July | August | September | October | November | December |
For record highs, the first value is the highest daily maximum value. The 2nd is the highest daily minimum value. For lows, the first is the lowest daily minimum value and the 2nd is the lowest daily maximum value. Year is for the highest maximum temperature and for the lowest minimum.
 Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | snow/year |
---|---|---|---|---|---|---|---|
1 | 41 | 18 | 70/44 | 1997 | -14/-3 | 1942 | 7.5(1985) |
2 | 42 | 17 | 70/49 | 1997 | -14/4 | 1911 | 6.0(1971 |
3 | 42 | 18 | 68/44 | 1918,1997 | -10/4 | 1911 | 8.5(1949 |
4 | 43 | 19 | 67/44 | 1927 | -14/8 | 1959 | 10.7(2014 |
5 | 44 | 19 | 69/44 | 2012,1956 | -13/8 | 1942 | 11.5(2007 |
6 | 43 | 19 | 70/46 | 1954 | -20/-9 | 1913 | 9.2(1998) |
7 | 44 | 19 | 69/49 | 2006 | -22/-4 | 1913 | 1.5(1986) |
8 | 45 | 21 | 70/50 | 1909 | -16/2 | 1937 | 15.5(1962) |
9 | 44 | 22 | 72/47 | 1953 | -11/9 | 1973 | 4.1(1993) |
10 | 44 | 20 | 70/55 | 1990 | -13/9 | 1962 | 7.4(2001) |
11 | 43 | 18 | 69/43 | 1953 | -18/-2 | 1963 | 4.7(2012) |
12 | 44 | 18 | 70/46 | 1953 | -22/1 | 1963 | 6.0(2009) |
13 | 45 | 21 | 69/45 | 1928 | -12/3 | 1997 | 3.0(1972) |
14 | 47 | 23 | 67/52 | 2006 | -9/6 | 1972 | 5.0(1967) |
15 | 45 | 23 | 69/45 | 1901 | -11/2 | 2024 | 10.0(1987) |
16 | 45 | 21 | 71/46 | 1974 | -14/4 | 2024 | 7.0(2001) |
17 | 44 | 20 | 67/39 | 1974 | -33/6 | 1930 | 4.7(1996) |
18 | 44 | 21 | 65/43 | 1965,2009 | -19/5 | 1984 | 5.8(2023) |
19 | 45 | 21 | 69/51 | 1986,2009,2017 | -17/6 | 1963 | 8.5(1990)* |
20 | 44 | 19 | 73/47 | 2005 | -15/6 | 1935 | 9.1(1973) |
21 | 44 | 19 | 70/43 | 2009 | -18/0 | 1930 | 7.1(2017) |
22 | 44 | 21 | 74/49 | 1925 | -11/10 | 1917 | 3.3(1974) |
23 | 45 | 20 | 71/38 | 1981 | -10/12 | 1963 | 4.4(2002) |
24 | 45 | 22 | 70/44 | 1968 | -8/8 | 1949 | 10.4(1978) |
25 | 45 | 21 | 70/47 | 1935 | -8/10 | 1903 | 6.5(1996) |
26 | 44 | 20 | 72/45 | 1982 | -20/7 | 1903 | 9.8(2014) |
27 | 45 | 19 | 72/49 | 2015 | -6/4 | 2009 | 5.7(2014) |
28 | 45 | 20 | 68/50 | 2011 | -9/7 | 1903 | 8.6(1989) |
29 | 44 | 20 | 70/44 | 1931 | -12/-3 | 1951 | 6.5(1994) |
30 | 44 | 19 | 71/47 | 1986 | -7/8 | 2023 | 5.8(2002) |
31 | 45 | 20 | 69/53 | 1989 | -9/4 | 1985 | 7.6(2005) |
February climatology  
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | snow/year |
---|---|---|---|---|---|---|---|
1 | 44 | 20 | 71/48 | 1934 | -15/6 | 1951 | 5.4(2016) |
2 | 44 | 20 | 75/49 | 2020 | -17/1 | 2011 | 11.2(2016) |
3 | 44 | 22 | 74/47 | 1954 | -17/-5 | 1989 | 16.4(2012) |
4 | 46 | 21 | 73/46 | 1935 | -18/-12 | 1989 | 8.6(2020) |
5 | 46 | 22 | 75/46 | 1963 | -24/6 | 1989 | 3.3(1975) |
6 | 46 | 22 | 70/45 | 2015 | -16/5 | 1914 | 5.7(2019) |
7 | 46 | 20 | 74/44 | 1987 | -19/-3 | 1933 | 6.5(1980) |
8 | 45 | 20 | 79/51 | 1954 | -28/7 | 1936 | 13.5(1956) |
9 | 44 | 21 | 78/47 | 1954 | -16/-7 | 1933 | 6.0(1953) |
10 | 47 | 22 | 76/57 | 2017 | -15/12 | 1933 | 5.5(1988) |
11 | 47 | 22 | 75/49 | 1962 | -15/1 | 1905 | 8.5(2020) |
12 | 48 | 23 | 72/45 | 1921 | -20/4 | 1905 | 10.4(1968) |
13 | 46 | 23 | 74/50 | 1979 | -9/7 | 1905 | 6.4(1966) |
14 | 45 | 21 | 70/48 | 1981 | -8/4 | 2021 | 4.9(2001) |
15 | 45 | 20 | 67/45 | 1982,2017 | -12/10 | 1903,2021 | 9.1(2023) |
16 | 47 | 23 | 73/42 | 2017 | -11/5 | 1900 | 8.1(2015) |
17 | 47 | 23 | 68/48 | 1970 | -11/10 | 1936 | 5.7(2022) |
18 | 46 | 23 | 73/46 | 2016 | -14/9 | 2006 | 7.1(2021) |
19 | 46 | 22 | 71/49 | 1981 | -4/16 | 2006 | 7.6(1987) |
20 | 47 | 23 | 74/48 | 1981 | -6/15 | 2018 | 8.0(1971) |
21 | 46 | 23 | 77/46 | 1982 | 4/15 | 1911 | 6.4(2015) |
22 | 48 | 23 | 73/45 | 1982 | -2/15 | 2022 | 8.5(1960,2015) |
23 | 47 | 23 | 74/52 | 2002 | -13/9 | 2023 | 7.0(1997) |
24 | 46 | 23 | 72/54 | 1981 | -5/11 | 2023 | 8.0(2013) |
25 | 47 | 24 | 75/58 | 1986 | -6/17 | 1935 | 8.1(2021) |
26 | 47 | 23 | 72/44 | 1932 | -6/9 | 1962 | 9.5(2015) |
27 | 47 | 23 | 75/50 | 1932 | -8/7 | 1962 | 4.3/2003 |
28 | 47 | 23 | 74/50 | 1932,2006 | -11/12 | 1962 | 6.0(2007) |
29 | 51 | 23 | 68/48 | 1940 | -5/24 | 1960 | 2.2(2004) |
March climatology 
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | snow/year |
---|---|---|---|---|---|---|---|
1 | 48 | 24 | 73/51 | 2008 | -1/17 | 1927 | 9.0(2002) |
2 | 49 | 24 | 75/51 | 1901 | -6/15 | 2002 | 4.0(2020) |
3 | 47 | 24 | 73/46 | 1921 | -4/14 | 1943 | 7.0(1964) |
4 | 45 | 23 | 74/49 | 2009 | -5/10 | 2019 | 5.1(1976) |
5 | 46 | 23 | 73/44 | 1925 | -2/15 | 1948 | 9.2(1971) |
6 | 48 | 23 | 73/51 | 1972 | -8/22 | 1943 | 11.6(1990)* |
7 | 49 | 23 | 70/43 | 1972 | -8/20 | 1943 | 10.0(1998) |
8 | 51 | 25 | 74/51 | 1986 | -1/13 | 1932/98 | 5.2(2006) |
9 | 51 | 27 | 77/47 | 1989 | -13/13 | 1932 | 16.1(1992) |
10 | 50 | 26 | 79/50 | 1900 | -7/11 | 1932 | 5.5(1970) |
11 | 49 | 26 | 78/56 | 1900 | -9/12 | 1932 | 11.0(1956) |
12 | 50 | 26 | 74/52 | 1900 | -10/17 | 1932 | 13.0(1963) |
13 | 51 | 26 | 75/52 | 2007 | 4/25 | 1950 | 7.0(1963) |
14 | 49 | 26 | 76/51 | 1925 | 4/20 | 1925 | 17.5(2021) |
15 | 49 | 26 | 78/52 | 2015,2017 | 2/17 | 1906 | 7.1(2024) |
16 | 53 | 27 | 80/50 | 2015 | -4/12 | 1906 | 8.0(1983) |
17 | 54 | 28 | 75/54 | 1908 | 0/18 | 1924 | 5.6(1988) |
18 | 53 | 28 | 80/49 | 2017 | -5/14 | 1923 | 16.9(1998) |
19 | 52 | 28 | 79/62 | 1907 | -1/16 | 1965 | 12.3(2010) |
20 | 52 | 29 | 80/57 | 1997 | -3/16 | 1927 | 6.5(1989) |
21 | 53 | 28 | 83/54 | 1910 | -1/24 | 1914 | 17.1(1952) |
22 | 55 | 29 | 80/56 | 1910 | 0/14 | 1898 | 6.5(1984) |
23 | 54 | 29 | 76/52 | 1967,2012 | 3/18 | 1898 | 16.4(2016) |
24 | 53 | 30 | 76/51 | 1998 | 2/? | 1965 | 10.2(1996) |
25 | 53 | 29 | 78/53 | 1985 | -2/14 | 1996 | 12.5(1959) |
26 | 52 | 27 | 79/51 | 1971 | -1/23 | 1955 | 16.2(2009) |
27 | 52 | 27 | 78/55 | 1986 | -5/20 | 1931 | 10.6(1975) |
28 | 53 | 28 | 78/49 | 1986 | -2/23 | 1975 | 9.4(1972) |
29 | 53 | 29 | 79/55 | 1943 | 4/23 | 1975 | 8.3(1987) |
30 | 56 | 28 | 79/51 | 2010 | 6/29 | 1926 | 18.5(1970) |
31 | 57 | 30 | 81/56 | 2012 | 1/21 | 1899 | 8.7(1988) |
April climatology 
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | snow/year |
---|---|---|---|---|---|---|---|
1 | 56 | 31 | 78/52 | 2004 | 7/25 | 1936 | 10.4(1975) |
2 | 58 | 33 | 82/51 | 2011 | -3/33 | 1975 | 20.6(1957) |
3 | 56 | 31 | 77/53 | 1943 | 12/26 | 1945 | 12.0(1986) |
4 | 56 | 31 | 80/47 | 2021 | 9/20 | 1945 | 8.2(2017) |
5 | 58 | 32 | 80/52 | 1991 | 5/32 | 1939 | 6.8(1990) |
6 | 59 | 33 | 80/54 | 1991 | 4/22 | 1938 | 4.1(2018) |
7 | 57 | 33 | 81/53 | 1930 | 15/26 | 1938 | 12.3(1957) |
8 | 57 | 33 | 83/51 | 1930 | 9/32 | 1973 | 11.5(1959) |
9 | 59 | 33 | 78/54 | 1977,2019 | 8/28 | 1973 | 13.1(2013) |
10 | 59 | 34 | 80/55 | 1960 | 2/29 | 2013 | 11.1(1995) |
11 | 58 | 34 | 84/56 | 2023 | 9/26 | 1940 | 12.0(1953) |
12 | 59 | 34 | 82/50 | 2023 | 2/33 | 1997 | 8.8(2020) |
13 | 61 | 35 | 83/52 | 2006 | 12/27 | 2022 | 10.3(1974) |
14 | 62 | 36 | 80/57 | 1963,2024 | 10/27 | 2020 | 3.6(1949) |
15 | 62 | 36 | 85/54 | 1985 | 15/33 | 1945 | 10.4(2013) |
16 | 61 | 35 | 81/52 | 1958 | 21/31 | 1947 | 6.5(2016) |
17 | 62 | 36 | 83/55 | 1987 | 17/31 | 1901 | 11.8(2016) |
18 | 62 | 36 | 84/53 | 1987 | 10/31 | 2013 | 16.9(2020) |
19 | 61 | 37 | 82/55 | 1962,2022 | 13/34 | 1966 | 5.0(1966) |
20 | 62 | 36 | 83/68 | 1989 | 10/34 | 2021 | 10.5(1984) |
21 | 64 | 37 | 88/54 | 1989 | 14/35 | 1907 | 4.8(1952) |
22 | 65 | 39 | 85/59 | 2022 | 18/42 | 1920 | 7.4(2001) |
23 | 63 | 39 | 87/57 | 1994 | 22/32 | 1931 | 7.5(2013) |
24 | 62 | 38 | 87/56 | 2012 | 18/32 | 2013 | 16.4(1997) |
25 | 62 | 37 | 84/59 | 1938 | 20/33 | 1924 | 2.5(2006) |
26 | 63 | 38 | 85/55 | 1946 | 15/29 | 1924 | 4.0(1995) |
27 | 63 | 38 | 85/59 | 1910 | 22/37 | 1924 | 3.7(2009) |
28 | 64 | 38 | 82/60 | 1943 | 23/30 | 1917 | 2.1(2005) |
29 | 63 | 38 | 84/59 | 1948 | 21/33 | 1903 | 8.5(2005) |
30 | 63 | 38 | 87/55 | 1992 | 19/34 | 1909 | 6.7(1991) |
May climatology  
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | snow/year |
---|---|---|---|---|---|---|---|
1 | 65 | 39 | 86/55 | 1943 | 23/34 | 1909 | 10.7(2013) |
2 | 65 | 41 | 86/56 | 1981 | 17/35 | 2013 | 2.5(1954) |
3 | 65 | 40 | 86/60 | 1947 | 20/30 | 1907 | 0.5(1967) |
4 | 67 | 41 | 88/59 | 2000,2012 | 28/35 | 1944 | 1.0(1950) |
5 | 67 | 42 | 89/60 | 2000 | 29/35 | 1950 | 9.0(1978) |
6 | 65 | 40 | 87/59 | 1963,2000,2004 | 22/37 | 1917 | 14.0(1978) |
7 | 66 | 42 | 87/65 | 1963 | 28/41 | 2010 | 0.9(2010) |
8 | 66 | 42 | 86/62 | 2011 | 30/39 | 2010 | 0 |
9 | 68 | 42 | 88/59 | 1916 | 25/34 | 2002 | 2.3(2019) |
10 | 67 | 43 | 88/62 | 1916 | 26/29 | 1979 | 5.2(2003) |
11 | 68 | 42 | 88/61 | 1963 | 21/45 | 1946 | 1.7(2014) |
12 | 68 | 42 | 88/60 | 1962 | 24/33 | 1953 | 5.1(2014) |
13 | 68 | 42 | 89/65 | 1988 | 27/38 | 1953 | Tr(2010) |
14 | 68 | 43 | 88/60 | 1996 | 27/39 | 1912 | 2.0(1967) |
15 | 69 | 44 | 93/59 | 1978 | 29/42 | 1916 | 0 |
16 | 69 | 44 | 93/62 | 1996 | 30/37 | 1923 | 4.0(1957) |
17 | 72 | 45 | 92/61 | 1964 | 28/39 | 1942 | 7.1(1983)** |
18 | 72 | 46 | 93/59 | 1970 | 29/40 | 1930 | 5.3(2017) |
19 | 71 | 45 | 92/63 | 1939 | 22/40 | 1946 | 1.5/1960 |
20 | 70 | 45 | 93/62 | 1954 | 21/40 | 1946 | 3.8/2022 |
21 | 70 | 45 | 90/68 | 2006 | 26/35 | 2001 | 5.1(2019) |
22 | 70 | 45 | 89/66 | 2012 | 32/35 | 1931,2019 | 0 |
23 | 71 | 46 | 90/65 | 1989,00 | 34/48 | 1930 | Tr(1971),1994 |
24 | 73 | 47 | 90/58 | 1967 | 32/44 | 1994,2002 | 1.1(2002) |
25 | 73 | 47 | 87/66 | 1969,2013 | 32/50 | 1950 | 8.7(1950) |
26 | 72 | 47 | 91/66 | 1969 | 32/47 | 1950 | 0.0(1950) |
27 | 71 | 47 | 92/60 | 2006 | 33/52 | 1950 | 0 |
28 | 71 | 47 | 95/60 | 2000 | 30/36 | 1947 | 0 |
29 | 73 | 48 | 95/72 | 2000,3 | 30/45 | 1947 | Tr(1975) |
30 | 74 | 48 | 91/68 | 1984 | 34/42 | 1973 | Tr(1973) |
31 | 73 | 48 | 89/69 | 2002 | 31/51 | 1979 | 0 |
June climatology  
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | snow/year |
---|---|---|---|---|---|---|---|
1 | 73 | 48 | 89/62 | 1997 | 32/48 | 1979 | |
2 | 74 | 48 | 92/63 | 2006 | 30/45 | 1951 | 1.5(1951) |
3 | 74 | 49 | 95/65 | 1958 | 32/46 | 1951 | 0.7(1951) |
4 | 75 | 49 | 94/66 | 1990 | 36/52 | 1937 | |
5 | 76 | 50 | 95/61 | 1946 | 33/49 | 1937 | Tr(1953) |
6 | 75 | 49 | 95/70 | 2000 | 33/54 | 1998 | |
7 | 76 | 50 | 95/65 | 1934/2000 | 35/55 | 1915 | 0.1(93 ()hail) |
8 | 76 | 50 | 98/64 | 1985 | 34/58 | 2007 | hail |
9 | 77 | 50 | 96/65 | 1985 | 37/56 | 2014 | |
10 | 77 | 51 | 97/70 | 1952 | 37/49 | 1975 | |
11 | 77 | 53 | 99/69 | 2022 | 36/44 | 1975 | |
12 | 78 | 52 | 100/67 | 1952 | 32/44 | 1947 | 1.0(1947) |
13 | 79 | 53 | 99/69 | 2024 | 32/45 | 1947 | Tr(1969) |
14 | 79 | 52 | 100/67 | 2006 | 35/50 | 1969 | |
15 | 79 | 53 | 100/71 | 1952 | 32/45 | 1945 | |
16 | 80 | 53 | 99/65 | 2021 | 32/44 | 1945 | |
17 | 80 | 53 | 98/68 | 1946 | 38/49 | 1912 | hail |
18 | 80 | 53 | 98/70 | 1936,2012 | 41/53 | 1945 | |
19 | 81 | 53 | 97/74 | 1934 | 38/56 | 1976 | |
20 | 82 | 54 | 97/68 | 2017 | 39/67 | 1946 | |
21 | 81 | 55 | 99/68 | 2016 | 41/60 | 2000 | hail |
22 | 83 | 55 | 98/81 | 1954,2012 | 40/56 | 2004 | Tr(1996) (hail) |
23 | 84 | 56 | 104/74 | 1954 | 40/64 | 2019 | |
24 | 83 | 56 | 101/80 | 2012 | 39/55 | 1906 | Tr(2006) (hail) |
25 | 84 | 56 | 101/69 | 2012 | 42/61 | 1958 | |
26 | 84 | 56 | 101/69 | 1971,1994 | 42/61 | 1968,2003 | |
27 | 86 | 57 | 100/69 | 1990 | 41/70 | 1985 | |
28 | 86 | 58 | 98/73 | 2018 | 47/61 | 1945 | |
29 | 85 | 57 | 99/73 | 1953 | 45/58 | 1978 | |
30 | 84 | 57 | 99/70 | 1994 | 41/58 | 1935 |
July climatology  
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | rain/year | snow/year |
---|---|---|---|---|---|---|---|---|
1 | 84 | 56 | 101/75 | 2002 | 46/67 | 1995,2018 | 1.36(2021) | |
2 | 85 | 57 | 99/71 | 1990 | 45/67 | 1915 | 0.71(2019) | |
3 | 85 | 58 | 98/73 | 1964 | 43/57 | 1922 | 0.76(1972) | |
4 | 85 | 57 | 98/73 | 1989,2011 | 40/56 | 1921 | 0.52(1972) | |
5 | 85 | 58 | 99/76 | 1989 | 42/69 | 1972 | 0.61(2023) | |
6 | 85 | 57 | 100/69 | 1973 | 44/62 | 1931 | 0.48(2015) | |
7 | 85 | 58 | 100/72 | 1951 | 41/62 | 1904 | 1.08(2010) | |
8 | 85 | 58 | 100/75 | 1989 | 46/67 | 1929 | 1.47(1967) | |
9 | 86 | 58 | 99/70 | 1976,2022 | 46/63 | 1929 | 1.98(2012) | |
10 | 86 | 59 | 100/75 | 1954 | 49/70 | 1922 | 1.78(1983) | |
11 | 86 | 59 | 104/76 | 1954 | 50/68 | 1944 | 0.58(1993) | |
12 | 85 | 59 | 103/75 | 1954 | 47/62 | 1922 | 0.69(1987) | |
13 | 87 | 60 | 102/71 | 1954 | 44/66 | 1987 | 0.37(1973) | |
14 | 85 | 59 | 99/72 | 1931 | 47/64 | 1973 | 0.41(1993) | |
15 | 85 | 58 | 100/70 | 1925 | 46/64 | 1908 | 0.45(2018) | |
16 | 86 | 59 | 100/74 | 2006 | 47/65 | 1992 | 0.67(2012) | |
17 | 86 | 59 | 98/71 | 2002,2010 | 46/67 | 1992 | 1.81(2000) | |
18 | 85 | 60 | 100/72 | 1998,2020 | 49/61 | 1972 | 0.30(1965) | |
19 | 85 | 59 | 100/74 | 1934,2022 | 46/63 | 1902 | 0.63(1985) | |
20 | 85 | 59 | 100/82 | 1998 | 45/65 | 1900 | 2.12(1990) | |
21 | 85 | 59 | 101/72 | 2005 | 48/66 | 1915 | 2.18(1977) | |
22 | 85 | 59 | 102/77 | 1931 | 47/67 | 1973 | 0.61(1998) | |
23 | 85 | 59 | 99/75 | 2005 | 47/61 | 1990 | 1.66(2004) | |
24 | 84 | 59 | 101/74 | 1953,2003 | 49/58 | 2004 | 0.82(1965) | |
25 | 86 | 59 | 99/72 | 1931 | 49/73 | 1973 | 1.80(1977) | |
26 | 86 | 60 | 98/76 | 1935 | 48/71 | 1926 | 1.06(1964) | |
27 | 86 | 60 | 101/70 | 1947 | 48/68 | 1913 | 1.02(1982) | |
28 | 86 | 60 | 100/72 | 1947 | 52/70 | 1911,2009 | 1.11(2022) | |
29 | 86 | 60 | 100/73 | 1947 | 46/68 | 1971 | 1.26(1953) | |
30 | 86 | 59 | 99/72 | 2024 | 45/57 | 1971 | 2.56(2014) | |
31 | 86 | 59 | 100/69 | 2002 | 47/67 | 2009 | 1.47(1956) |
August climatology 
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | rain/year | snow/year |
---|---|---|---|---|---|---|---|---|
1 | 85 | 60 | 100/73 | 1938 | 44/62 | 1995 | 0.60(2023) | |
2 | 85 | 60 | 99/72 | 2008 | 49/64 | 1995* | 0.69(1976) | |
3 | 84 | 59 | 98/73 | 1954 | 49/59 | 1915 | 3.06(1951) | |
4 | 85 | 59 | 98/75 | 1947 | 45/64 | 1927 | 1.79(1999) | |
5 | 85 | 59 | 98/70 | 1962 | 47/68 | 1928 | 0.98(2002) | |
6 | 84 | 59 | 101/76 | 1979 | 50/72 | 1921 | 1.59(1997) | |
7 | 84 | 59 | 99/70 | 1975 | 47/54 | 1939 | 0.38(1988) | |
8 | 85 | 58 | 101/72 | 1969 | 46/68 | 1939 | 0.25(1963) | |
9 | 84 | 59 | 101/69 | 1947 | 45/65 | 1939 | 1.00(2001) | |
10 | 84 | 58 | 97/74 | 1969 | 40/62 | 1912 | 1.40(1968) | |
11 | 84 | 57 | 97/70 | 1959 | 47/65 | 1974 | 1.91(1994) | |
12 | 85 | 58 | 99/72 | 1996 | 47/68 | 2004 | 0.53(1990) | |
13 | 85 | 58 | 97/68 | 2007 | 44/68 | 2007 | 0.82(1975) | |
14 | 85 | 58 | 99/74 | 1935 | 48/62 | 2004 | 0.93(1961) | |
15 | 85 | 58 | 97/69 | 1944 | 47/63 | 1978 | 0.87(2008) | |
16 | 85 | 59 | 100/71 | 2002 | 47/56 | 1975,2009 | 1.31(2008) | |
17 | 84 | 58 | 97/73 | 1948 | 45/72 | 2008 | 0.88(1997) | |
18 | 84 | 58 | 98/77 | 2002 | 48/70 | 1987 | 1.32(2003) | |
19 | 83 | 57 | 96/70 | 2013,2019,2023 | 43/60 | 1939 | 1.42(2004) | |
20 | 82 | 57 | 98/70 | 2019 | 43/61 | 2016 | 1.65(1982) | |
21 | 82 | 57 | 98/76 | 2023 | 44/60 | 1920 | 0.26(1999) | |
22 | 82 | 56 | 97/70 | 1949 | 46/64 | 1966 | 0.60(1984) | |
23 | 83 | 57 | 98/69 | 2011 | 47/58 | 1945 | 0.41(1952) | |
24 | 83 | 57 | 102/70 | 1936 | 45/63 | 1968 | 2.00(1992) | |
25 | 84 | 56 | 97/76 | 2019,2020 | 37/61 | 1910 | 0.54(2023) | |
26 | 84 | 57 | 96/73 | 1953 | 39/66 | 1910 | 0.37(1980) | |
27 | 83 | 57 | 96/71 | 1926 | 39/65 | 1910 | 0.22(2023) | |
28 | 83 | 56 | 96/70 | 1948 | 40/65 | 2004 | 0.34(2014) | |
29 | 82 | 56 | 97/69 | 1954 | 44/63 | 2004 | 0.47(1952) | |
30 | 82 | 56 | 96/72 | 1948,2005 | 46/69 | 1964 | 1.83(1967) | |
31 | 82 | 55 | 96/69 | 1960,2011 | 42/59 | 1932 | 1.93(1951) |
September climatology 
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | rain/year | snow/year |
---|---|---|---|---|---|---|---|---|
1 | 83 | 55 | 98/72 | 2019 | 42/61 | 1967 | 0.57(1966) | 0.0 |
2 | 82 | 54 | 100/69 | 1983,2019 | 42/67 | 1974 | 0.92(1966) | 0.0 |
3 | 81 | 53 | 94/75 | 1960,2013 | 33/51 | 1961 | 1.16(1961) | Tr(1961) |
4 | 80 | 53 | 96/67 | 1960 | 39/58 | 1961 | 0.50(1971) | 0.0 |
5 | 80 | 53 | 99/69 | 2020 | 40/58 | 1968 | 0.96(2018) | 0.0 |
6 | 81 | 53 | 99/68 | 2020 | 38/50 | 1929 | 0.33(1996) | 0.0 |
7 | 80 | 54 | 95/66 | 2022 | 34/41 | 1929 | 1.02(2011) | 0.0 |
8 | 78 | 53 | 97/66 | 2022 | 35/41 | 1941 | 1.31(2001) | Tr(2001) |
9 | 78 | 51 | 95/69 | 2021 | 30/46 | 2020 | 0.85(2020) | 1.7(2020) |
10 | 78 | 50 | 99/65 | 2021 | 35/42 | 1962,2020 | 1.02(2013) | 4.0(2020) |
11 | 77 | 51 | 95/64 | 2021 | 34/43 | 1898 | 1.92(2013) | 0.6(1989) |
12 | 77 | 50 | 93/69 | 1956 | 31/40 | 1974 | 9.08(2013) | 2.7(1974) |
13 | 76 | 50 | 95/69 | 1990 | 31/50 | 1993 | 2.44(2013) | 1.0(1993) |
14 | 76 | 49 | 94/63 | 1990 | 28/44 | 1993 | 0.85(1982) | 0.0 |
15 | 75 | 49 | 93/65 | 2018 | 30/44 | 1903 | 1.94(2013) | 0.0 |
16 | 75 | 48 | 93/62 | 2000 | 30/47 | 1912 | 0.49(2013) | Tr(1965) |
17 | 76 | 48 | 93/65 | 2000 | 27/36 | 1965 | 1.64(1971) | 18.0(1971) |
18 | 76 | 49 | 93/64 | 1947 | 30/44 | 1971 | 0.89(1993) | 3.0(1971) |
19 | 76 | 49 | 93/65 | 2010 | 22/45 | 1971 | 0.82(1996) | 0.0 |
20 | 75 | 47 | 93/66 | 1956 | 29/36 | 1983 | 1.50(1961) | 2.3(1965) |
21 | 74 | 46 | 89/67 | 2007 | 31/36 | 1912 | 1.07(1995) | 8.3(1995) |
22 | 74 | 47 | 90/63 | 1954 | 23/39 | 1995 | 1.47(1970) | T(1994) |
23 | 73 | 47 | 91/67 | 1947 | 30/39 | 2000 | 0.80(1997) | 1.4(2000) |
24 | 73 | 46 | 92/66 | 1949 | 28/38 | 2000 | 1.44(1959) | 5.1(2000) |
25 | 73 | 45 | 88/66 | 1953 | 24/46 | 1926 | 1.54(1970) | 1.5(1970) |
26 | 71 | 45 | 90/67 | 2021 | 28/45 | 1942 | 0.51(1996,2012) | 3.3(1996) |
27 | 72 | 43 | 92/60 | 1953 | 24/36 | 1908 | 0.50(1976) | 2.8(1996) |
28 | 71 | 44 | 90/63 | 2010 | 23/35 | 1945 | 1.23(1985) | 9.0(1985) |
29 | 71 | 44 | 89/64 | 1964 | 18/35 | 1985 | 1.03(1959) | 10.4(1959) |
30 | 72 | 45 | 91/66 | 1980 | 15/37 | 1985 | 0.82(1991) | 0.5(1959) |
October climatology 
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | snow/year |
---|---|---|---|---|---|---|---|
1 | 72 | 45 | 90/62 | 1953 | 23/36 | 1985 | 3.5(1959) |
2 | 72 | 45 | 85/64 | 2012 | 27/44 | 1959 | 2.8(1959) |
3 | 71 | 44 | 88/60 | 1967 | 30/47 | 1927,2009 | 2.0(1969) |
4 | 71 | 44 | 88/61 | 1922 | 30/37 | 1950 | 10.2(1969) |
5 | 69 | 43 | 90/63 | 1947 | 27/42 | 1991 | 3.0(1969) |
6 | 68 | 42 | 85/61 | 1993,2020 | 28/35 | 1995 | 0.9(2000) |
7 | 70 | 42 | 88/64 | 1956 | 23/42 | 1970 | 3.5(1970) |
8 | 69 | 42 | 86/59 | 1965 | 22/34 | 1970 | 4.1(1990) |
9 | 69 | 42 | 86/64 | 1965 | 24/38 | 1990 | 6.0(1985) |
10 | 69 | 42 | 88/62 | 1910 | 15/38 | 2009 | 4.8(2009) |
11 | 69 | 41 | 87/58 | 1996 | 15/29 | 2019 | 9.7(1969) |
12 | 67 | 40 | 89/58 | 1950 | 20/27 | 1969 | 6.5(1969) |
13 | 68 | 41 | 88/63 | 1989 | 10/30 | 1969 | 2.0(1985) |
14 | 67 | 41 | 85/59 | 1962 | 13/36 | 1969 | 8.9(2018) |
15 | 66 | 40 | 85/61 | 1958 | 13/44 | 2018 | 9.2(1969) |
16 | 65 | 38 | 87/55 | 1991 | 20/35 | 1969 | 12.0(1948) |
17 | 65 | 38 | 85/59 | 2003,2023 | 15/33 | 1999 | 3.7(2006) |
18 | 65 | 38 | 86/57 | 1926 | 19/26 | 1925 | 3.2(2013) |
19 | 63 | 38 | 87/59 | 2003 | 17/30 | 1925 | 1.5(1982) |
20 | 64 | 38 | 87/59 | 1950,2023 | 19/36 | 1916 | 3.2(1949) |
21 | 65 | 38 | 84/60 | 1950 | 12/28 | 1911 | 5.8(2006) |
22 | 63 | 38 | 85/60 | 2003 | 19/28 | 1936 | 3.0(1995) |
23 | 63 | 36 | 86/52 | 2003 | 22/29 | 1906 | 4.8(1975) |
24 | 63 | 36 | 83/58 | 2014 | 19/32 | 1975 | 7.7(1997) |
25 | 62 | 36 | 85/55 | 2017 | 10/32 | 2020 | 22.1(1997) |
26 | 62 | 36 | 81/55 | 1966 | 5/18 | 2020 | 11.5(2011) |
27 | 62 | 36 | 82/54 | 2016 | 4/34 | 2020 | 3.9(2019) |
28 | 61 | 36 | 80/60 | 2016 | 11/28 | 1925 | 16.7(2009) |
29 | 58 | 34 | 83/55 | 1968 | -2/21 | 1917 | 10.2(1961) |
30 | 58 | 34 | 80/56 | 1933 | 3/23 | 2019 | 9.6(1972) |
31 | 58 | 33 | 83/56 | 1950 | 3/21 | 2019 | 4.9(1989)* |
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | snow/year |
---|---|---|---|---|---|---|---|
1 | 57 | 34 | 75/52 | 1988 | 10/25 | 1951 | 9.7(1972) |
2 | 56 | 30 | 79/54 | 1931 | -2/18 | 1951 | 8.6(2011) |
3 | 57 | 31 | 77/51 | 1915,2015,2020 | 1/30 | 1991 | 4.8(1990) |
4 | 58 | 32 | 79/51 | 1952,2020 | 14/27 | 1967 | 3.7(2022) |
5 | 57 | 31 | 78/58 | 1952,2023 | 6/31 | 1933 | 6.5(1951) |
6 | 58 | 32 | 77/55 | 1980 | 11/31 | 1938 | 8.2(1990) |
7 | 56 | 32 | 78/54 | 1980,2021 | 9/28 | 1990 | 4.1(1998) |
8 | 56 | 30 | 78/60 | 1978 | 17/28 | 1990 | 12.4(1950) |
9 | 55 | 30 | 79/56 | 2019 | 5/22 | 1950 | 10.0(1985) |
10 | 57 | 30 | 75/56 | 1956,2005 | -3/18 | 1950 | 4.0(1997) |
11 | 54 | 29 | 79/52 | 1989 | -1/7 | 1911 | 12.6(2018) |
12 | 54 | 29 | 78/52 | 1989 | -2/10 | 1911 | 9.0(1979) |
13 | 53 | 29 | 74/53 | 1999 | -11/9 | 2014 | 2.0(1980) |
14 | 55 | 28 | 75/46 | 1905 | -2/28 | 1916 | 16.0(1994) |
15 | 54 | 29 | 79/53 | 2016 | 1/25 | 1997 | 8.0(1987) |
16 | 52 | 28 | 80/56 | 2016 | -1/26 | 2014 | 7.3(1996) |
17 | 52 | 29 | 75/48 | 1981 | 4/25 | 1903 | 5.1(1969) |
18 | 51 | 28 | 78/48 | 2008 | 2/20 | 1903 | 5.6(2022) |
19 | 53 | 28 | 78/58 | 1989 | 5/15 | 2022 | 7.5(1956) |
20 | 52 | 28 | 75/54 | 1939 | 3/23 | 1906 | 22.0(1979) |
21 | 50 | 26 | 72/50 | 2012 | 0/20 | 1929 | 6.9(1992) |
22 | 52 | 25 | 73/54 | 1939/2006 | -7/8 | 1929 | 10.5(1999) |
23 | 52 | 27 | 73/50 | 1939 | -2/15 | 2003 | 12.1(1992) |
24 | 53 | 27 | 72/49 | 2017 | 3/27 | 1918 | 9.3(1992) |
25 | 53 | 29 | 77/50 | 1990 | -8/22 | 1993 | 6.3(1952) |
26 | 51 | 27 | 73/52 | 2017 | -1/27 | 1919 | 20.7(2019) |
27 | 48 | 25 | 76/56 | 2017 | -12/3 | 1919 | 11.5(1983) |
28 | 49 | 24 | 70/52 | 2014 | -12/12 | 1919 | 6.1(2004) |
29 | 49 | 24 | 76/54 | 1899 | 1/25 | 1919 | 11.8(2006) |
30 | 50 | 26 | 68/57 | 1956 | 0/12 | 1975/2006 | 6.0(1986) |
Day | Normal High | Normal Low | Record High | Year(s) | Record Low | Year(s) | snow/year |
---|---|---|---|---|---|---|---|
1 | 49 | 26 | 72/51 | 2021 | -5/9 | 1985 | 7.6(2011) |
2 | 50 | 25 | 72/48 | 2021 | -9/13 | 1919 | 6.9(2009) |
3 | 49 | 26 | 70/50 | 1941 | -2/25 | 1919 | 8.0(2011) |
4 | 48 | 25 | 75/48 | 1965 | -1/8 | 1909,2009 | 7.2(2008) |
5 | 47 | 24 | 71/46 | 2012 | -12/7 | 1972 | 8.4(1972) |
6 | 48 | 23 | 69/43 | 1981 | -16/5 | 1972 | 8.0(1964) |
7 | 46 | 23 | 68/45 | 1984 | -15/7 | 1927 | 12.4(1988) |
8 | 45 | 21 | 71/47 | 1940 | -9/7 | 1932 | 4.7(1967) |
9 | 44 | 21 | 74/48 | 1957 | -20/-2 | 1919 | 10.5(1985) |
10 | 46 | 21 | 70/47 | 1915 | -12/3 | 1932 | 3.2(1963) |
11 | 46 | 22 | 71/46 | 1934 | -18/-3 | 1932 | 6.7(2007) |
12 | 46 | 22 | 68/47 | 2017 | -19/14 | 1932 | 7.1(1967) |
13 | 44 | 21 | 74/53 | 1921 | -10/5 | 1926 | 4.5(1987) |
14 | 43 | 20 | 69/45 | 1924 | -11/5 | 1926 | 7.2(1965) |
15 | 45 | 20 | 70/46 | 2006 | -15/7 | 2008 | 11.3(2015) |
16 | 45 | 22 | 69/53 | 1941 | -7/12 | 2008 | 4.8(1992) |
17 | 44 | 21 | 76/55 | 1980 | -9/10 | 1964 | 5.2(2016) |
18 | 44 | 22 | 69/46 | 1979 | -14/13 | 1909 | 4.9(1973) |
19 | 45 | 21 | 69/50 | 1979 | -17/10 | 1924 | 3.7(2012) |
20 | 45 | 22 | 70/47 | 1954 | -16/3 | 1924 | 15.7(2006) |
21 | 44 | 22 | 66/44 | 1982 | -20/8 | 1990 | 10.3(2006) |
22 | 44 | 23 | 71/47 | 1982 | -24/0 | 1990 | 14.6(2011) | 23 | 44 | 22 | 71/54 | 1955 | -14/2 | 2022 | 5.9(2009) |
24 | 46 | 22 | 70/62 | 1955 | -18/-2 | 1924 | 18.0(1982) |
25 | 45 | 21 | 68/47 | 2005 | -10/12 | 1983 | 6.7(2012) |
26 | 44 | 20 | 70/44 | 1947 | -6/10 | 1916 | 7.0(1988) |
27 | 44 | 20 | 74/44 | 1980 | -10/8 | 1916 | 12.6(1987) |
28 | 46 | 21 | 67/44 | 1980 | -8/15 | 1924 | 9.0(1979) |
29 | 45 | 22 | 69/44 | 1965 | -10/11 | 1983 | 12.5(2006) |
30 | 44 | 21 | 71/49 | 1980 | -11/11 | 1990 | 6.2(2010) |
31 | 42 | 18 | 66/48 | 1904 | -18/6 | 1923 | 8.0(1994) |
Records and daily data are sometimes from different sources and may not agree. I attempt to fix discrepancies when possible.