Craters of the Moon Threshold Days by Year

16 fixed thresholds counted per year at Craters of the Moon (USC00102260): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Craters of the Moon Thresholds

Craters of the Moon: nights with a minimum temperature at or below 0 C (32 F) in 55 years, most in 2020 with 236.
Craters of the Moon: nights with a minimum temperature at or below -10 C (14 F) in 55 years, most in 2022 with 118.
Craters of the Moon: days with a maximum temperature at or above 30 C (86 F) in 52 years, most in 1994 with 67.
Craters of the Moon: days with a maximum temperature at or below 0 C (32 F) in 52 years, most in 2022 with 110.
16 fixed thresholds have at least one qualifying day at Craters of the Moon.

Days at or above 30 C (86 F)

52 years with a qualifying day

Days per year at Craters of the Moon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 67 in 1994.

Days at or above 30 C (86 F) per year at Craters of the Moon
Year	Days	Decade average
1959	33	33
1960	29	27
1961	42	27
1962	15	27
1963	20	27
1964	24	27
1965	13	27
1966	25	27
1967	38	27
1969	37	27
1970	35	29
1971	35	29
1972	22	29
1973	24	29
1974	36	29
1975	22	29
1976	22	29
1977	35	29
1979	30	29
1981	53	41.5
1985	30	41.5
1992	35	35.6
1993	4	35.6
1994	67	35.6
1998	42	35.6
1999	30	35.6
2000	39	39.3
2001	40	39.3
2002	35	39.3
2003	51	39.3
2004	23	39.3
2006	43	39.3
2007	52	39.3
2008	37	39.3
2009	34	39.3
2010	29	39.4
2011	33	39.4
2012	50	39.4
2013	57	39.4
2014	30	39.4
2015	30	39.4
2016	40	39.4
2017	55	39.4
2018	39	39.4
2019	31	39.4
2020	29	42.7
2021	55	42.7
2022	54	42.7
2023	29	42.7
2024	44	42.7
2025	38	42.7
2026	50	42.7

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

First to last qualifying date each year at Craters of the Moon
Year	First date	Last date
1959	1959-06-12	1959-09-10
1960	1960-07-08	1960-08-20
1961	1961-06-16	1961-08-23
1962	1962-06-25	1962-08-20
1963	1963-07-06	1963-09-11
1964	1964-06-25	1964-08-17
1965	1965-07-14	1965-08-10
1966	1966-06-28	1966-08-26
1967	1967-07-02	1967-09-05
1969	1969-07-11	1969-09-02
1970	1970-06-21	1970-08-26
1971	1971-06-21	1971-08-28
1972	1972-06-29	1972-08-27
1973	1973-06-08	1973-08-20
1974	1974-06-12	1974-08-29
1975	1975-07-02	1975-08-13
1976	1976-06-28	1976-09-06
1977	1977-06-05	1977-09-08
1979	1979-06-25	1979-09-08
1981	1981-06-24	1981-09-18
1985	1985-06-18	1985-08-27
1992	1992-06-21	1992-08-21
1993	1993-07-29	1993-08-19
1994	1994-06-19	1994-09-10
1998	1998-07-01	1998-09-05
1999	1999-06-20	1999-08-27
2000	2000-06-30	2000-09-15
2001	2001-06-21	2001-09-05
2002	2002-06-16	2002-09-03
2003	2003-05-28	2003-09-04
2004	2004-07-12	2004-08-15
2006	2006-06-06	2006-09-05
2007	2007-06-20	2007-09-04
2008	2008-06-21	2008-08-26
2009	2009-07-11	2009-09-04
2010	2010-06-28	2010-10-02
2011	2011-06-28	2011-09-09
2012	2012-06-04	2012-08-28
2013	2013-06-10	2013-09-02
2014	2014-07-02	2014-08-19
2015	2015-06-10	2015-09-11
2016	2016-06-06	2016-09-01
2017	2017-06-07	2017-09-07
2018	2018-07-05	2018-09-07
2019	2019-07-10	2019-09-05
2020	2020-05-29	2020-09-06
2021	2021-06-02	2021-09-10
2022	2022-06-17	2022-09-07
2023	2023-07-02	2023-08-29
2024	2024-06-07	2024-09-08
2025	2025-06-09	2025-09-04
2026	2026-06-16	2026-08-27

Every Fixed Threshold

Fixed thresholds at Craters of the Moon
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	52	67	1994	50
35 C (95 F): Days	32	14	2003	17
90 F (32.2 C): Days	51	37	2021	32
100 F (37.8 C): Days	6	3	2002	1
0 C (32 F): Ice days (max	52	110	2022	23
0 C (32 F): Frost days (min	55	236	2020	126
-10 C (14 F): Days with min	55	118	2022	29
-20 C (-4 F): Days with min	52	21	1972	9
-30 C (-22 F): Days with min	6	2	1963	1
20 C (68 F): Tropical nights (min	16	4	2003	1
10 mm (0.39 in): Days with 10 mm or more rain	51	17	1963	8
25 mm (0.98 in): Days with 25 mm or more rain	30	4	1964	2
50 mm (1.97 in): Days with 50 mm or more rain	5	3	1969	2
10 cm (3.9 in): Days with 10 cm or more snowfall	52	16	1975	1
25 cm (9.8 in): Days with 25 cm or more snowfall	30	4	1985	1
50 cm (19.7 in): Days with 50 cm or more snowfall	4	1	1959	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

Data for Craters of the Moon 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Craters of the Moon Threshold Days by Year

Key Facts for Craters of the Moon Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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