Warren Threshold Days by Year

16 fixed thresholds counted per year at Warren (USC00109560): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Warren Thresholds

Warren: days with 10 cm (3.9 in) or more of snowfall in 43 years, most in 1967 with 28.
Warren: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1970 with 32.
Warren: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1965 with 324.
Warren: nights with a minimum temperature at or below -10 C (14 F) in 33 years, most in 1964 with 125.
16 fixed thresholds have at least one qualifying day at Warren.

Days at or above 30 C (86 F)

31 years with a qualifying day

Days per year at Warren with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 1898.

Days at or above 30 C (86 F) per year at Warren
Year	Days	Decade average
1896	27	39.7
1897	42	39.7
1898	50	39.7
1923	2	5
1924	11	5
1925	3	5
1926	4	5
1960	12	5.5
1961	9	5.5
1962	2	5.5
1963	1	5.5
1964	1	5.5
1965	1	5.5
1966	5	5.5
1967	8	5.5
1968	6	5.5
1969	10	5.5
1970	6	3.8
1971	3	3.8
1972	3	3.8
1973	3	3.8
1974	4	3.8
1975	6	3.8
1976	3	3.8
1977	1	3.8
1978	3	3.8
1979	6	3.8
1980	3	4.5
1981	8	4.5
1982	1	4.5
1983	6	4.5

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

First to last qualifying date each year at Warren
Year	First date	Last date
1896	1896-06-27	1896-09-06
1897	1897-05-23	1897-09-24
1898	1898-06-18	1898-09-25
1923	1923-07-22	1923-07-23
1924	1924-06-30	1924-09-04
1925	1925-06-26	1925-07-14
1926	1926-06-26	1926-08-25
1960	1960-07-13	1960-08-10
1961	1961-07-22	1961-08-22
1962	1962-08-15	1962-08-16
1963	1963-08-13	1963-08-13
1964	1964-07-08	1964-07-08
1965	1965-08-08	1965-08-08
1966	1966-07-30	1966-08-25
1967	1967-07-12	1967-08-31
1968	1968-07-09	1968-07-28
1969	1969-07-27	1969-08-26
1970	1970-06-23	1970-08-05
1971	1971-08-08	1971-08-27
1972	1972-07-29	1972-08-09
1973	1973-07-10	1973-08-01
1974	1974-06-14	1974-06-19
1975	1975-07-08	1975-07-28
1976	1976-07-06	1976-07-23
1977	1977-08-19	1977-08-19
1978	1978-07-23	1978-08-04
1979	1979-07-16	1979-08-04
1980	1980-07-22	1980-07-28
1981	1981-07-04	1981-09-18
1982	1982-08-07	1982-08-07
1983	1983-07-30	1983-08-07

Every Fixed Threshold

Fixed thresholds at Warren
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	31	50	1898	6
35 C (95 F): Days	2	12	1897	12
90 F (32.2 C): Days	13	30	1898	2
100 F (37.8 C): Days	1	1	1897	1
0 C (32 F): Ice days (max	31	62	1971	41
0 C (32 F): Frost days (min	33	324	1965	272
-10 C (14 F): Days with min	33	125	1964	66
-20 C (-4 F): Days with min	33	40	1964	26
-30 C (-22 F): Days with min	28	10	1924	4
-40 C (-40 F): Days with min	5	2	1978	1
10 mm (0.39 in): Days with 10 mm or more rain	39	32	1970	19
25 mm (0.98 in): Days with 25 mm or more rain	29	6	1965	2
50 mm (1.97 in): Days with 50 mm or more rain	3	1	1962	1
10 cm (3.9 in): Days with 10 cm or more snowfall	43	28	1967	14
25 cm (9.8 in): Days with 25 cm or more snowfall	28	5	1970	1
50 cm (19.7 in): Days with 50 cm or more snowfall	2	1	1967	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

Data for Warren 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Warren Threshold Days by Year

Key Facts for Warren Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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