Snowflake Threshold Days by Year (USC00028012)

16 fixed thresholds counted per year at Snowflake (USC00028012): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Snowflake Thresholds

Snowflake: days with 10 mm (0.39 in) or more of precipitation in 100 years, most in 1915 with 22.
Snowflake: days with a maximum temperature at or above 30 C (86 F) in 98 years, most in 2000 with 116.
Snowflake: days with a maximum temperature at or above 90 F (32.2 C) in 98 years, most in 1922 with 82.
Snowflake: nights with a minimum temperature at or below 0 C (32 F) in 97 years, most in 1930 with 238.
16 fixed thresholds have at least one qualifying day at Snowflake.

Days at or above 30 C (86 F)

98 years with a qualifying day

Days per year at Snowflake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 116 in 2000.

Days at or above 30 C (86 F) per year at Snowflake
Year	Days	Decade average
1898	63	77.5
1899	92	77.5
1902	93	77.7
1903	74	77.7
1904	66	77.7
1911	60	83.3
1912	50	83.3
1913	52	83.3
1914	107	83.3
1915	90	83.3
1916	104	83.3
1917	92	83.3
1918	104	83.3
1919	91	83.3
1921	56	83.1
1922	105	83.1
1923	44	83.1
1924	101	83.1
1925	80	83.1
1926	98	83.1
1927	87	83.1
1928	84	83.1
1929	93	83.1
1930	104	71.8
1931	68	71.8
1932	71	71.8
1933	65	71.8
1936	51	71.8
1940	97	79.3
1941	75	79.3
1942	109	79.3
1945	63	79.3
1946	68	79.3
1947	59	79.3
1948	90	79.3
1949	73	79.3
1950	70	77.4
1951	90	77.4
1952	86	77.4
1953	83	77.4
1954	62	77.4
1955	68	77.4
1956	83	77.4
1957	65	77.4
1958	89	77.4
1959	78	77.4
1960	93	72.9
1961	70	72.9
1962	69	72.9
1963	71	72.9
1967	71	72.9
1968	57	72.9
1969	79	72.9
1970	71	73.7
1971	79	73.7
1972	62	73.7
1973	72	73.7
1974	81	73.7
1975	62	73.7
1976	66	73.7
1977	74	73.7
1978	86	73.7
1979	84	73.7
1980	93	80.5
1981	80	80.5
1982	77	80.5
1983	102	80.5
1984	91	80.5
1985	80	80.5
1986	66	80.5
1987	65	80.5
1988	70	80.5
1989	81	80.5
1990	72	74.2
1991	70	74.2
1992	61	74.2
1993	78	74.2
1994	92	74.2
1995	66	74.2
1996	85	74.2
1997	79	74.2
1998	73	74.2
1999	66	74.2
2000	116	91.3
2001	102	91.3
2002	95	91.3
2003	115	91.3
2004	81	91.3
2005	81	91.3
2006	81	91.3
2007	93	91.3
2008	80	91.3
2009	69	91.3
2010	86	84.2
2012	97	84.2
2013	74	84.2
2014	86	84.2
2015	78	84.2

For each year, a bar from the first to the last day at Snowflake meeting 30 C (86 F).

First to last qualifying date each year at Snowflake
Year	First date	Last date
1898	1898-06-02	1898-09-29
1899	1899-06-06	1899-10-03
1902	1902-05-28	1902-09-17
1903	1903-05-13	1903-09-10
1904	1904-05-16	1904-10-09
1911	1911-06-05	1911-09-25
1912	1912-05-27	1912-08-25
1913	1913-05-23	1913-09-18
1914	1914-05-08	1914-10-06
1915	1915-05-12	1915-09-24
1916	1916-04-27	1916-11-05
1917	1917-06-08	1917-09-13
1918	1918-06-05	1918-10-04
1919	1919-05-17	1919-09-11
1921	1921-06-07	1921-09-27
1922	1922-05-23	1922-10-09
1923	1923-05-24	1923-09-11
1924	1924-05-01	1924-10-16
1925	1925-05-13	1925-09-06
1926	1926-05-16	1926-10-28
1927	1927-04-24	1927-10-03
1928	1928-04-29	1928-09-29
1929	1929-06-09	1929-10-09
1930	1930-04-24	1930-10-21
1931	1931-05-25	1931-09-30
1932	1932-05-18	1932-09-18
1933	1933-06-08	1933-10-05
1936	1936-05-16	1936-09-05
1940	1940-05-02	1940-09-26
1941	1941-05-09	1941-09-27
1942	1942-05-20	1942-10-02
1945	1945-06-13	1945-09-15
1946	1946-04-22	1946-09-13
1947	1947-06-07	1947-09-26
1948	1948-04-16	1948-09-21
1949	1949-05-24	1949-09-23
1950	1950-04-21	1950-10-12
1951	1951-05-25	1951-09-28
1952	1952-05-12	1952-09-19
1953	1953-06-09	1953-10-09
1954	1954-06-03	1954-09-22
1955	1955-05-29	1955-10-01
1956	1956-05-17	1956-09-27
1957	1957-06-03	1957-09-28
1958	1958-05-18	1958-09-21
1959	1959-05-11	1959-10-25
1960	1960-05-11	1960-09-27
1961	1961-06-05	1961-08-28
1962	1962-04-18	1962-09-19
1963	1963-05-06	1963-10-03
1967	1967-05-21	1967-09-24
1968	1968-05-28	1968-09-30
1969	1969-05-25	1969-09-29
1970	1970-05-16	1970-09-11
1971	1971-06-13	1971-09-16
1972	1972-05-26	1972-10-01
1973	1973-05-30	1973-09-21
1974	1974-05-09	1974-09-11
1975	1975-06-01	1975-09-02
1976	1976-05-14	1976-09-04
1977	1977-05-30	1977-09-13
1978	1978-05-13	1978-10-03
1979	1979-05-15	1979-10-26
1980	1980-05-20	1980-10-10
1981	1981-06-05	1981-09-28
1982	1982-05-26	1982-09-26
1983	1983-05-23	1983-09-23
1984	1984-05-09	1984-09-14
1985	1985-05-24	1985-09-03
1986	1986-05-20	1986-09-07
1987	1987-06-01	1987-10-07
1988	1988-05-13	1988-10-03
1989	1989-04-20	1989-09-29
1990	1990-05-21	1990-09-14
1991	1991-06-08	1991-10-16
1992	1992-04-27	1992-09-27
1993	1993-05-26	1993-10-03
1994	1994-05-28	1994-09-28
1995	1995-06-01	1995-09-13
1996	1996-04-25	1996-10-10
1997	1997-05-05	1997-10-05
1998	1998-06-01	1998-09-28
1999	1999-05-22	1999-09-27
2000	2000-04-26	2000-10-06
2001	2001-05-08	2001-09-29
2002	2002-05-13	2002-09-25
2003	2003-05-16	2003-10-19
2004	2004-05-04	2004-09-17
2005	2005-05-19	2005-10-01
2006	2006-05-12	2006-09-30
2007	2007-05-11	2007-09-16
2008	2008-05-18	2008-09-25
2009	2009-05-06	2009-09-28
2010	2010-05-27	2010-10-01
2012	2012-04-22	2012-10-03
2013	2013-05-31	2013-09-07
2014	2014-05-16	2014-09-24
2015	2015-05-30	2015-10-01

Every Fixed Threshold

Fixed thresholds at Snowflake
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	98	116	2000	78
35 C (95 F): Days	95	51	1914	14
40 C (104 F): Days	2	1	1942	1
90 F (32.2 C): Days	98	82	1922	36
100 F (37.8 C): Days	42	10	1942	2
0 C (32 F): Ice days (max	82	23	1898	3
0 C (32 F): Frost days (min	97	238	1930	130
-10 C (14 F): Days with min	97	63	1925	16
-20 C (-4 F): Days with min	49	11	1919	1
-30 C (-22 F): Days with min	3	3	1971	3
20 C (68 F): Tropical nights (min	25	10	1902	2
10 mm (0.39 in): Days with 10 mm or more rain	100	22	1915	15
25 mm (0.98 in): Days with 25 mm or more rain	69	7	1915	1
50 mm (1.97 in): Days with 50 mm or more rain	9	1	1921	1
10 cm (3.9 in): Days with 10 cm or more snowfall	75	7	1915	1
25 cm (9.8 in): Days with 25 cm or more snowfall	10	2	1915	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

Data for Snowflake threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Snowflake Threshold Days by Year (USC00028012)

Key Facts for Snowflake Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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