Butte 5SE Threshold Days by Year (USC00321225)

18 fixed thresholds counted per year at Butte 5SE (USC00321225): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Butte 5SE Thresholds

Butte 5SE: days with a maximum temperature at or above 30 C (86 F) in 74 years, most in 1989 with 63.
Butte 5SE: days with a maximum temperature at or below 0 C (32 F) in 74 years, most in 1950 with 121.
Butte 5SE: days with a maximum temperature at or above 90 F (32.2 C) in 73 years, most in 1989 with 46.
Butte 5SE: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1928 with 21.
18 fixed thresholds have at least one qualifying day at Butte 5SE.

Days at or above 30 C (86 F)

74 years with a qualifying day

Days per year at Butte 5SE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 63 in 1989.

Days at or above 30 C (86 F) per year at Butte 5SE
Year	Days	Decade average
1926	22	14.5
1927	3	14.5
1928	8	14.5
1929	25	14.5
1930	33	37.2
1931	45	37.2
1932	27	37.2
1933	40	37.2
1934	47	37.2
1935	17	37.2
1936	62	37.2
1937	38	37.2
1938	21	37.2
1939	42	37.2
1940	32	15.5
1941	26	15.5
1942	11	15.5
1943	3	15.5
1944	11	15.5
1945	9	15.5
1946	21	15.5
1947	11	15.5
1950	22	27.3
1951	18	27.3
1952	29	27.3
1953	24	27.3
1955	31	27.3
1958	28	27.3
1959	39	27.3
1960	37	37
1961	60	37
1962	17	37
1963	32	37
1967	49	37
1968	25	37
1969	39	37
1970	54	39.6
1971	36	39.6
1972	38	39.6
1973	41	39.6
1974	41	39.6
1975	33	39.6
1976	50	39.6
1977	33	39.6
1978	39	39.6
1979	31	39.6
1980	50	45
1981	30	45
1982	33	45
1983	49	45
1989	63	45
1990	56	35.2
1991	42	35.2
1992	34	35.2
1993	13	35.2
1994	28	35.2
1995	35	35.2
1996	30	35.2
1997	44	35.2
1998	35	35.2
2000	22	26.9
2001	30	26.9
2002	32	26.9
2003	31	26.9
2005	28	26.9
2006	38	26.9
2007	31	26.9
2008	21	26.9
2009	9	26.9
2010	17	19
2011	17	19
2012	16	19
2013	18	19
2015	27	19

For each year, a bar from the first to the last day at Butte 5SE meeting 30 C (86 F).

First to last qualifying date each year at Butte 5SE
Year	First date	Last date
1926	1926-04-29	1926-08-26
1927	1927-07-26	1927-09-13
1928	1928-05-08	1928-08-13
1929	1929-06-16	1929-09-02
1930	1930-05-03	1930-09-18
1931	1931-05-14	1931-09-08
1932	1932-05-13	1932-09-08
1933	1933-05-31	1933-09-18
1934	1934-04-28	1934-09-08
1935	1935-06-30	1935-09-15
1936	1936-05-11	1936-09-22
1937	1937-05-28	1937-09-21
1938	1938-06-19	1938-09-25
1939	1939-04-30	1939-09-19
1940	1940-05-11	1940-09-16
1941	1941-05-17	1941-08-23
1942	1942-07-11	1942-09-10
1943	1943-07-09	1943-08-30
1944	1944-05-13	1944-08-12
1945	1945-06-21	1945-09-05
1946	1946-06-16	1946-09-15
1947	1947-04-28	1947-08-23
1950	1950-06-04	1950-09-06
1951	1951-05-23	1951-08-24
1952	1952-04-26	1952-09-28
1953	1953-06-12	1953-10-02
1955	1955-05-03	1955-09-19
1958	1958-05-12	1958-09-14
1959	1959-06-03	1959-09-14
1960	1960-05-13	1960-10-05
1961	1961-05-31	1961-09-01
1962	1962-04-25	1962-09-07
1963	1963-06-29	1963-10-05
1967	1967-05-22	1967-09-11
1968	1968-06-02	1968-09-14
1969	1969-05-26	1969-09-14
1970	1970-05-17	1970-09-06
1971	1971-06-03	1971-09-03
1972	1972-05-15	1972-09-20
1973	1973-05-31	1973-08-31
1974	1974-06-03	1974-08-25
1975	1975-05-16	1975-08-28
1976	1976-06-01	1976-09-30
1977	1977-04-09	1977-08-09
1978	1978-05-22	1978-09-11
1979	1979-05-16	1979-09-17
1980	1980-04-20	1980-10-06
1981	1981-06-27	1981-09-13
1982	1982-07-03	1982-09-11
1983	1983-06-07	1983-09-07
1989	1989-06-06	1989-10-01
1990	1990-04-21	1990-09-26
1991	1991-06-11	1991-09-08
1992	1992-04-30	1992-10-01
1993	1993-05-13	1993-08-25
1994	1994-05-17	1994-09-24
1995	1995-06-01	1995-09-04
1996	1996-06-09	1996-09-05
1997	1997-05-17	1997-10-03
1998	1998-05-29	1998-09-17
2000	2000-05-24	2000-09-18
2001	2001-04-29	2001-09-06
2002	2002-05-29	2002-09-18
2003	2003-04-14	2003-09-09
2005	2005-06-19	2005-10-02
2006	2006-05-19	2006-09-15
2007	2007-05-18	2007-09-30
2008	2008-07-01	2008-09-19
2009	2009-07-27	2009-09-19
2010	2010-07-11	2010-08-28
2011	2011-06-30	2011-10-06
2012	2012-04-25	2012-09-11
2013	2013-06-25	2013-09-07
2015	2015-06-30	2015-09-14

Every Fixed Threshold

Fixed thresholds at Butte 5SE
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	74	63	1989	27
35 C (95 F): Days	64	26	1936	6
40 C (104 F): Days	3	7	1936	1
90 F (32.2 C): Days	73	46	1989	19
100 F (37.8 C): Days	37	14	1936	4
0 C (32 F): Ice days (max	74	121	1950	70
0 C (32 F): Frost days (min	65	203	1929	155
-10 C (14 F): Days with min	65	125	1950	48
-20 C (-4 F): Days with min	65	68	1950	20
-30 C (-22 F): Days with min	59	21	1936	5
20 C (68 F): Tropical nights (min	50	10	1983	3
25 C (77 F): Days with min	2	1	1969	1
10 mm (0.39 in): Days with 10 mm or more rain	70	21	1928	21
25 mm (0.98 in): Days with 25 mm or more rain	60	11	2005	11
50 mm (1.97 in): Days with 50 mm or more rain	20	4	1994	1
100 mm (3.94 in): Days with 100 mm or more rain	2	1	1928	1
10 cm (3.9 in): Days with 10 cm or more snowfall	35	7	1993	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	2005	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1926.

Download the Data

Data for Butte 5SE 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).

Butte 5SE Threshold Days by Year (USC00321225)

Key Facts for Butte 5SE Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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