Grass Range Threshold Days by Year (USC00243727)

19 fixed thresholds counted per year at Grass Range (USC00243727): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grass Range Thresholds

Grass Range: nights with a minimum temperature at or below 0 C (32 F) in 87 years, most in 1959 with 209.
Grass Range: nights with a minimum temperature at or below -10 C (14 F) in 87 years, most in 1955 with 101.
Grass Range: nights with a minimum temperature at or below -20 C (-4 F) in 87 years, most in 1937 with 44.
Grass Range: days with 10 mm (0.39 in) or more of precipitation in 87 years, most in 1978 with 22.
19 fixed thresholds have at least one qualifying day at Grass Range.

Days at or above 30 C (86 F)

86 years with a qualifying day

Days per year at Grass Range with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 85 in 1988.

Days at or above 30 C (86 F) per year at Grass Range
Year	Days	Decade average
1935	43	54.2
1936	80	54.2
1937	58	54.2
1938	38	54.2
1939	52	54.2
1940	56	38.4
1941	33	38.4
1942	31	38.4
1943	37	38.4
1944	17	38.4
1945	37	38.4
1946	38	38.4
1947	45	38.4
1948	43	38.4
1949	47	38.4
1950	25	38.6
1951	29	38.6
1954	38	38.6
1955	45	38.6
1956	45	38.6
1957	44	38.6
1958	41	38.6
1959	42	38.6
1960	51	44
1961	72	44
1962	19	44
1963	48	44
1964	38	44
1965	29	44
1966	59	44
1967	46	44
1968	34	44
1970	56	44.8
1971	47	44.8
1972	36	44.8
1973	42	44.8
1974	47	44.8
1976	48	44.8
1978	31	44.8
1979	51	44.8
1980	48	54.2
1981	58	54.2
1982	34	54.2
1983	58	54.2
1984	60	54.2
1985	47	54.2
1986	50	54.2
1987	57	54.2
1988	85	54.2
1989	45	54.2
1990	47	29.7
1992	22	29.7
1993	1	29.7
1994	34	29.7
1995	23	29.7
1996	35	29.7
1997	27	29.7
1998	47	29.7
1999	31	29.7
2000	35	34.3
2001	44	34.3
2002	24	34.3
2003	49	34.3
2004	18	34.3
2005	39	34.3
2006	41	34.3
2007	42	34.3
2008	27	34.3
2009	24	34.3
2010	30	34.3
2011	39	34.3
2012	53	34.3
2013	33	34.3
2014	30	34.3
2015	35	34.3
2016	29	34.3
2017	48	34.3
2018	21	34.3
2019	25	34.3
2020	35	38.4
2021	57	38.4
2022	47	38.4
2023	28	38.4
2024	39	38.4
2025	23	38.4
2026	40	38.4

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

First to last qualifying date each year at Grass Range
Year	First date	Last date
1935	1935-06-22	1935-09-23
1936	1936-05-05	1936-10-08
1937	1937-05-28	1937-09-20
1938	1938-05-27	1938-09-28
1939	1939-04-29	1939-09-21
1940	1940-05-31	1940-09-13
1941	1941-05-12	1941-08-23
1942	1942-07-02	1942-09-09
1943	1943-07-06	1943-10-07
1944	1944-05-15	1944-09-13
1945	1945-06-21	1945-09-13
1946	1946-06-21	1946-09-30
1947	1947-05-02	1947-09-12
1948	1948-05-17	1948-10-03
1949	1949-05-12	1949-09-23
1950	1950-06-05	1950-09-06
1951	1951-05-22	1951-08-22
1954	1954-05-19	1954-09-11
1955	1955-06-21	1955-10-10
1956	1956-05-17	1956-09-26
1957	1957-06-03	1957-10-01
1958	1958-05-11	1958-10-14
1959	1959-06-03	1959-09-13
1960	1960-05-11	1960-10-06
1961	1961-05-29	1961-10-15
1962	1962-06-26	1962-08-26
1963	1963-06-18	1963-10-03
1964	1964-05-20	1964-09-17
1965	1965-06-23	1965-08-16
1966	1966-05-05	1966-09-23
1967	1967-07-04	1967-09-29
1968	1968-06-02	1968-10-29
1970	1970-05-17	1970-10-04
1971	1971-05-27	1971-10-09
1972	1972-05-31	1972-08-30
1973	1973-05-16	1973-09-29
1974	1974-04-25	1974-09-26
1976	1976-06-09	1976-10-01
1978	1978-05-15	1978-09-07
1979	1979-05-15	1979-10-04
1980	1980-04-20	1980-10-08
1981	1981-05-01	1981-09-20
1982	1982-06-22	1982-09-09
1983	1983-05-25	1983-09-26
1984	1984-05-14	1984-09-19
1985	1985-05-02	1985-08-30
1986	1986-05-20	1986-08-30
1987	1987-04-27	1987-10-03
1988	1988-05-13	1988-10-12
1989	1989-06-18	1989-09-29
1990	1990-06-23	1990-09-25
1992	1992-05-06	1992-10-01
1993	1993-07-29	1993-07-29
1994	1994-06-23	1994-09-09
1995	1995-07-08	1995-09-05
1996	1996-06-07	1996-10-10
1997	1997-05-31	1997-09-30
1998	1998-07-08	1998-09-17
1999	1999-06-18	1999-09-23
2000	2000-06-07	2000-09-17
2001	2001-05-12	2001-09-25
2002	2002-06-26	2002-09-16
2003	2003-06-19	2003-09-07
2004	2004-06-29	2004-09-11
2005	2005-06-21	2005-09-10
2006	2006-05-18	2006-09-09
2007	2007-06-29	2007-09-04
2008	2008-05-18	2008-08-30
2009	2009-05-19	2009-09-24
2010	2010-06-29	2010-09-28
2011	2011-06-28	2011-10-01
2012	2012-06-05	2012-09-14
2013	2013-05-12	2013-09-06
2014	2014-07-02	2014-09-25
2015	2015-06-08	2015-10-10
2016	2016-06-07	2016-09-02
2017	2017-06-04	2017-09-12
2018	2018-07-06	2018-09-07
2019	2019-06-06	2019-09-16
2020	2020-05-31	2020-09-14
2021	2021-06-02	2021-09-27
2022	2022-06-17	2022-09-28
2023	2023-07-01	2023-09-03
2024	2024-06-23	2024-09-29
2025	2025-05-10	2025-09-02
2026	2026-05-13	2026-10-05

Every Fixed Threshold

Fixed thresholds at Grass Range
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	86	85	1988	40
35 C (95 F): Days	75	36	1936	7
40 C (104 F): Days	8	3	1936	1
90 F (32.2 C): Days	85	66	1988	17
100 F (37.8 C): Days	33	16	1936	4
0 C (32 F): Ice days (max	86	67	1996	11
0 C (32 F): Frost days (min	87	209	1959	69
-10 C (14 F): Days with min	87	101	1955	13
-20 C (-4 F): Days with min	87	44	1937	4
-30 C (-22 F): Days with min	64	12	1950	2
-40 C (-40 F): Days with min	2	2	1936	1
20 C (68 F): Tropical nights (min	18	7	2024	7
10 mm (0.39 in): Days with 10 mm or more rain	87	22	1978	14
25 mm (0.98 in): Days with 25 mm or more rain	71	9	2011	3
50 mm (1.97 in): Days with 50 mm or more rain	23	2	1978	1
100 mm (3.94 in): Days with 100 mm or more rain	1	2	2014	2
10 cm (3.9 in): Days with 10 cm or more snowfall	68	11	1958	4
25 cm (9.8 in): Days with 25 cm or more snowfall	27	2	1942	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1938	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1935.

Download the Data

Data for Grass Range 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 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Grass Range Threshold Days by Year (USC00243727)

Key Facts for Grass Range Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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