Richwoods Threshold Days by Year (USC00237122)

18 fixed thresholds counted per year at Richwoods (USC00237122): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Richwoods Thresholds

Richwoods: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1957 with 48.
Richwoods: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1938 with 17.
Richwoods: days with 50 mm (1.97 in) or more of precipitation in 31 years, most in 1938 with 5.
Richwoods: days with a maximum temperature at or above 30 C (86 F) in 14 years, most in 1980 with 110.
18 fixed thresholds have at least one qualifying day at Richwoods.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Richwoods with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 110 in 1980.

Days at or above 30 C (86 F) per year at Richwoods
Year	Days	Decade average
1963	94	80.8
1964	84	80.8
1965	86	80.8
1966	76	80.8
1969	64	80.8
1970	62	63.6
1971	69	63.6
1972	67	63.6
1973	66	63.6
1974	53	63.6
1975	61	63.6
1976	67	63.6
1980	110	91
1981	72	91

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

First to last qualifying date each year at Richwoods
Year	First date	Last date
1963	1963-03-29	1963-10-22
1964	1964-04-16	1964-10-17
1965	1965-04-08	1965-10-18
1966	1966-05-05	1966-09-05
1969	1969-05-29	1969-10-05
1970	1970-04-27	1970-09-22
1971	1971-04-13	1971-10-03
1972	1972-04-13	1972-09-21
1973	1973-06-03	1973-09-03
1974	1974-03-08	1974-08-27
1975	1975-05-20	1975-10-23
1976	1976-04-24	1976-10-13
1980	1980-04-23	1980-10-10
1981	1981-04-01	1981-10-06

Every Fixed Threshold

Fixed thresholds at Richwoods
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	110	1980	72
35 C (95 F): Days	14	55	1980	8
40 C (104 F): Days	4	15	1980	15
90 F (32.2 C): Days	14	83	1980	30
100 F (37.8 C): Days	7	26	1980	26
110 F (43.3 C): Days	1	2	1980	2
0 C (32 F): Ice days (max	14	34	1963	12
0 C (32 F): Frost days (min	14	141	1980	103
-10 C (14 F): Days with min	14	41	1963	36
-20 C (-4 F): Days with min	11	5	1963	2
20 C (68 F): Tropical nights (min	14	39	1980	19
25 C (77 F): Days with min	5	2	1966	1
10 mm (0.39 in): Days with 10 mm or more rain	39	48	1957	44
25 mm (0.98 in): Days with 25 mm or more rain	39	17	1938	11
50 mm (1.97 in): Days with 50 mm or more rain	31	5	1938	2
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1938	1
10 cm (3.9 in): Days with 10 cm or more snowfall	7	4	1964	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	1	1951	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1963.

Download the Data

Data for Richwoods 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).

Richwoods Threshold Days by Year (USC00237122)

Key Facts for Richwoods Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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