Clover Valley Threshold Days by Year (USC00261740)

14 fixed thresholds counted per year at Clover Valley (USC00261740): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clover Valley Thresholds

Clover Valley: days with 10 mm (0.39 in) or more of precipitation in 50 years, most in 1907 with 20.
Clover Valley: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1908 with 218.
Clover Valley: nights with a minimum temperature at or below -10 C (14 F) in 42 years, most in 1993 with 81.
Clover Valley: days with a maximum temperature at or above 30 C (86 F) in 41 years, most in 1981 with 76.
14 fixed thresholds have at least one qualifying day at Clover Valley.

Days at or above 30 C (86 F)

41 years with a qualifying day

Days per year at Clover Valley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 76 in 1981.

Days at or above 30 C (86 F) per year at Clover Valley
Year	Days	Decade average
1902	40	36.6
1903	50	36.6
1905	45	36.6
1906	33	36.6
1907	19	36.6
1908	41	36.6
1909	28	36.6
1910	67	34.8
1912	28	34.8
1913	12	34.8
1914	23	34.8
1915	32	34.8
1916	24	34.8
1917	25	34.8
1919	67	34.8
1921	27	43
1924	59	43
1930	19	21
1931	41	21
1932	3	21
1966	53	47
1967	41	47
1977	43	43
1981	76	39.5
1982	26	39.5
1983	23	39.5
1985	58	39.5
1986	30	39.5
1987	25	39.5
1988	56	39.5
1989	22	39.5
1990	42	30.4
1991	34	30.4
1993	8	30.4
1994	65	30.4
1995	21	30.4
1997	21	30.4
1999	22	30.4
2001	53	49.7
2002	43	49.7
2003	53	49.7

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

First to last qualifying date each year at Clover Valley
Year	First date	Last date
1902	1902-05-26	1902-09-07
1903	1903-06-19	1903-09-22
1905	1905-07-04	1905-09-23
1906	1906-06-11	1906-09-23
1907	1907-07-18	1907-09-10
1908	1908-06-24	1908-09-04
1909	1909-06-02	1909-09-09
1910	1910-05-30	1910-09-21
1912	1912-06-04	1912-08-26
1913	1913-07-05	1913-08-28
1914	1914-06-29	1914-09-12
1915	1915-06-24	1915-08-31
1916	1916-06-16	1916-09-01
1917	1917-06-26	1917-08-24
1919	1919-05-19	1919-09-12
1921	1921-06-11	1921-08-30
1924	1924-06-03	1924-09-15
1930	1930-06-16	1930-08-24
1931	1931-07-02	1931-09-07
1932	1932-06-28	1932-08-18
1966	1966-06-19	1966-09-23
1967	1967-06-30	1967-09-04
1977	1977-06-04	1977-09-07
1981	1981-06-05	1981-09-18
1982	1982-06-28	1982-09-08
1983	1983-05-28	1983-09-13
1985	1985-06-07	1985-09-01
1986	1986-05-26	1986-08-25
1987	1987-06-13	1987-09-02
1988	1988-06-03	1988-09-08
1989	1989-06-15	1989-08-29
1990	1990-06-22	1990-09-14
1991	1991-07-03	1991-09-05
1993	1993-06-26	1993-08-17
1994	1994-06-11	1994-09-08
1995	1995-07-06	1995-09-01
1997	1997-07-08	1997-09-08
1999	1999-06-15	1999-08-29
2001	2001-05-23	2001-09-24
2002	2002-05-30	2002-09-05
2003	2003-05-23	2003-09-06

Every Fixed Threshold

Fixed thresholds at Clover Valley
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	41	76	1981	53
35 C (95 F): Days	16	10	1931	8
90 F (32.2 C): Days	40	46	1981	30
0 C (32 F): Ice days (max	41	64	1932	13
0 C (32 F): Frost days (min	42	218	1908	181
-10 C (14 F): Days with min	42	81	1993	32
-20 C (-4 F): Days with min	36	25	1932	8
-30 C (-22 F): Days with min	7	4	1990	1
20 C (68 F): Tropical nights (min	2	2	1931	1
10 mm (0.39 in): Days with 10 mm or more rain	50	20	1907	14
25 mm (0.98 in): Days with 25 mm or more rain	28	7	1909	1
50 mm (1.97 in): Days with 50 mm or more rain	8	4	1909	1
10 cm (3.9 in): Days with 10 cm or more snowfall	9	4	1910	1
25 cm (9.8 in): Days with 25 cm or more snowfall	1	0	n/a	2

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1902.

Download the Data

Data for Clover Valley 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).

Clover Valley Threshold Days by Year (USC00261740)

Key Facts for Clover Valley Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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