Allegan 1 Threshold Days by Year (USC00200108)

16 fixed thresholds counted per year at Allegan 1 (USC00200108): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Allegan 1 Thresholds

Allegan 1: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 1909 with 50.
Allegan 1: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1914 with 19.
Allegan 1: nights with a minimum temperature at or below 0 C (32 F) in 14 years, most in 1917 with 175.
Allegan 1: nights with a minimum temperature at or below -10 C (14 F) in 14 years, most in 1917 with 61.
16 fixed thresholds have at least one qualifying day at Allegan 1.

Days at or above 30 C (86 F)

12 years with a qualifying day

Days per year at Allegan 1 with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 71 in 1895.

For each year, a bar from the first to the last day at Allegan 1 meeting 30 C (86 F).

First to last qualifying date each year at Allegan 1
Year	First date	Last date
1892	1892-06-11	1892-09-24
1893	1893-06-17	1893-09-21
1894	1894-04-30	1894-09-29
1895	1895-05-03	1895-09-22
1896	1896-04-17	1896-09-10
1898	1898-05-22	1898-10-03
1908	1908-05-17	1908-09-22
1909	1909-05-30	1909-10-08
1914	1914-05-25	1914-09-23
1915	1915-04-23	1915-09-16
1916	1916-05-25	1916-08-27
1917	1917-05-17	1917-08-19

Every Fixed Threshold

Fixed thresholds at Allegan 1
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	12	71	1895	22
35 C (95 F): Days	10	16	1916	4
40 C (104 F): Days	1	1	1916	1
90 F (32.2 C): Days	12	44	1916	10
100 F (37.8 C): Days	4	5	1916	2
0 C (32 F): Ice days (max	12	68	1893	55
0 C (32 F): Frost days (min	14	175	1917	133
-10 C (14 F): Days with min	14	61	1917	25
-20 C (-4 F): Days with min	11	8	1893	2
20 C (68 F): Tropical nights (min	14	20	1916	18
25 C (77 F): Days with min	3	3	1909	1
10 mm (0.39 in): Days with 10 mm or more rain	19	50	1909	29
25 mm (0.98 in): Days with 25 mm or more rain	19	19	1914	12
50 mm (1.97 in): Days with 50 mm or more rain	9	5	1914	5
10 cm (3.9 in): Days with 10 cm or more snowfall	7	8	1908	3
25 cm (9.8 in): Days with 25 cm or more snowfall	2	1	1914	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1892.

Download the Data

Data for Allegan 1 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).

Year	Days	Decade average
1892	33	49.5
1893	49	49.5
1894	60	49.5
1895	71	49.5
1896	42	49.5
1898	42	49.5
1908	42	43
1909	44	43
1914	51	38.8
1915	25	38.8
1916	57	38.8
1917	22	38.8

Allegan 1 Threshold Days by Year (USC00200108)

Key Facts for Allegan 1 Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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