Boulder Colorado Climatology: Daily records of Temperature and Snowfall: NOAA Physical Sciences Laboratory

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.

Separate NIST site records are available: The site has been in its current location at NIST since Apr 1990:

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.

Plot of daily average max and min temperature

January climatology
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	-8/6	1972	10.0(1987)
16	45	21	71/46	1974	-9/4	1930	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)

* snow record not from official dataset Back to top

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	4.0(1960)
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)

* snow record not from official dataset Back to top

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	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	98/69	1952	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
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	0.41(2010)
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	97/72	1966	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
1	85	60	100/73	1938	44/62	1995	0.45(1956)
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	43/60	1939	1.42(2004)
20	82	57	98/70	2019	43/61	2016	1.65(1982)
21	82	57	97/76	1960	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	0.29(1949)
26	84	57	96/73	1953	39/66	1910	0.37(1980)
27	83	57	96/71	1926	39/65	1910	0.18(1953,2014)
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	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	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)*

November climatology

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	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)

December climatology

tr>

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.