Coalville Threshold Days by Year (USW00024120)

16 fixed thresholds counted per year at Coalville (USW00024120): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Coalville Thresholds

Coalville: nights with a minimum temperature at or below 0 C (32 F) in 69 years, most in 1933 with 246.
Coalville: nights with a minimum temperature at or below -10 C (14 F) in 69 years, most in 1952 with 94.
Coalville: nights with a minimum temperature at or below -20 C (-4 F) in 67 years, most in 1931 with 30.
Coalville: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 1984 with 20.
16 fixed thresholds have at least one qualifying day at Coalville.

Days at or above 30 C (86 F)

56 years with a qualifying day

Days per year at Coalville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 2007.

Days at or above 30 C (86 F) per year at Coalville
Year	Days	Decade average
1931	60	56.2
1932	49	56.2
1933	71	56.2
1934	54	56.2
1935	65	56.2
1936	66	56.2
1937	57	56.2
1938	34	56.2
1939	50	56.2
1940	65	39.9
1941	29	39.9
1942	43	39.9
1943	43	39.9
1944	38	39.9
1945	20	39.9
1946	43	39.9
1947	38	39.9
1950	29	40.2
1951	34	40.2
1952	51	40.2
1953	55	40.2
1955	32	40.2
1956	43	40.2
1957	28	40.2
1958	44	40.2
1959	46	40.2
1961	40	28.4
1962	28	28.4
1963	23	28.4
1964	32	28.4
1965	19	28.4
1973	43	42.2
1975	40	42.2
1976	37	42.2
1977	43	42.2
1978	40	42.2
1979	50	42.2
1980	42	41.3
1981	52	41.3
1982	40	41.3
1983	32	41.3
1984	31	41.3
1985	49	41.3
1986	34	41.3
1987	30	41.3
1988	59	41.3
1989	44	41.3
1990	52	41.8
1991	38	41.8
1992	39	41.8
1993	16	41.8
1994	64	41.8
2001	77	72.3
2002	61	72.3
2007	79	72.3
2010	54	54

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

First to last qualifying date each year at Coalville
Year	First date	Last date
1931	1931-06-14	1931-09-14
1932	1932-06-14	1932-09-17
1933	1933-05-30	1933-09-19
1934	1934-06-11	1934-09-06
1935	1935-06-08	1935-09-21
1936	1936-05-25	1936-09-24
1937	1937-05-28	1937-09-19
1938	1938-06-05	1938-09-21
1939	1939-05-29	1939-09-20
1940	1940-06-12	1940-09-01
1941	1941-06-21	1941-08-07
1942	1942-06-06	1942-09-02
1943	1943-06-26	1943-09-15
1944	1944-06-29	1944-09-21
1945	1945-07-07	1945-09-05
1946	1946-06-27	1946-09-13
1947	1947-05-03	1947-09-22
1950	1950-06-21	1950-09-06
1951	1951-05-27	1951-09-17
1952	1952-06-05	1952-09-26
1953	1953-06-10	1953-09-14
1955	1955-06-08	1955-09-05
1956	1956-05-31	1956-09-19
1957	1957-06-04	1957-08-19
1958	1958-05-19	1958-09-08
1959	1959-06-05	1959-09-10
1961	1961-06-10	1961-08-28
1962	1962-06-23	1962-09-19
1963	1963-07-01	1963-08-29
1964	1964-06-25	1964-08-25
1965	1965-07-03	1965-08-27
1973	1973-06-08	1973-09-05
1975	1975-06-30	1975-09-08
1976	1976-06-21	1976-09-05
1977	1977-06-01	1977-09-10
1978	1978-06-21	1978-09-06
1979	1979-06-15	1979-09-18
1980	1980-06-10	1980-09-28
1981	1981-06-20	1981-09-18
1982	1982-06-27	1982-09-04
1983	1983-05-27	1983-09-07
1984	1984-05-23	1984-09-18
1985	1985-06-07	1985-09-01
1986	1986-05-31	1986-08-27
1987	1987-06-12	1987-09-02
1988	1988-06-03	1988-09-06
1989	1989-06-15	1989-09-02
1990	1990-06-22	1990-09-14
1991	1991-06-11	1991-09-05
1992	1992-06-10	1992-08-21
1993	1993-06-14	1993-09-11
1994	1994-06-06	1994-09-28
2001	2001-05-12	2001-09-27
2002	2002-05-30	2002-09-15
2007	2007-05-18	2007-09-13
2010	2010-06-06	2010-10-02

Every Fixed Threshold

Fixed thresholds at Coalville
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	56	79	2007	54
35 C (95 F): Days	36	21	2007	2
90 F (32.2 C): Days	55	61	2007	21
100 F (37.8 C): Days	5	3	1931	1
0 C (32 F): Ice days (max	56	48	1932	20
0 C (32 F): Frost days (min	69	246	1933	211
-10 C (14 F): Days with min	69	94	1952	43
-20 C (-4 F): Days with min	67	30	1931	3
-30 C (-22 F): Days with min	21	5	1932	1
-40 C (-40 F): Days with min	1	1	1932	1
20 C (68 F): Tropical nights (min	1	1	1933	1
10 mm (0.39 in): Days with 10 mm or more rain	67	20	1984	13
25 mm (0.98 in): Days with 25 mm or more rain	39	2	1965	2
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1986	1
10 cm (3.9 in): Days with 10 cm or more snowfall	51	21	1983	8
25 cm (9.8 in): Days with 25 cm or more snowfall	19	4	1983	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1931.

Download the Data

Data for Coalville 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).

Coalville Threshold Days by Year (USW00024120)

Key Facts for Coalville Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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