Ft Ripley Threshold Days by Year (USC00212904)

20 fixed thresholds counted per year at Ft Ripley (USC00212904): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ft Ripley Thresholds

Ft Ripley: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1941 with 32.
Ft Ripley: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1941 with 12.
Ft Ripley: days with 10 cm (3.9 in) or more of snowfall in 33 years, most in 1965 with 8.
Ft Ripley: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1941 with 3.
20 fixed thresholds have at least one qualifying day at Ft Ripley.

Days at or above 30 C (86 F)

19 years with a qualifying day

Days per year at Ft Ripley with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 1921.

Days at or above 30 C (86 F) per year at Ft Ripley
Year	Days	Decade average
1908	24	24
1910	42	24.4
1911	28	24.4
1912	14	24.4
1913	29	24.4
1914	21	24.4
1915	10	24.4
1916	26	24.4
1917	20	24.4
1919	30	24.4
1920	19	23.1
1921	45	23.1
1922	38	23.1
1924	9	23.1
1925	34	23.1
1926	15	23.1
1928	2	23.1
1930	19	27
1931	35	27

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

First to last qualifying date each year at Ft Ripley
Year	First date	Last date
1908	1908-05-10	1908-09-20
1910	1910-04-27	1910-10-17
1911	1911-05-10	1911-09-18
1912	1912-06-24	1912-09-09
1913	1913-04-30	1913-09-07
1914	1914-05-26	1914-08-08
1915	1915-07-12	1915-09-06
1916	1916-07-01	1916-08-18
1917	1917-05-16	1917-08-22
1919	1919-05-27	1919-09-07
1920	1920-06-08	1920-09-17
1921	1921-05-21	1921-09-03
1922	1922-06-04	1922-09-07
1924	1924-07-15	1924-08-30
1925	1925-05-19	1925-09-17
1926	1926-05-01	1926-08-01
1928	1928-08-08	1928-08-09
1930	1930-07-08	1930-08-25
1931	1931-05-15	1931-09-20

Every Fixed Threshold

Fixed thresholds at Ft Ripley
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	19	45	1921	35
35 C (95 F): Days	14	10	1931	10
40 C (104 F): Days	1	1	1917	1
90 F (32.2 C): Days	17	24	1910	23
100 F (37.8 C): Days	3	5	1931	5
0 C (32 F): Ice days (max	19	101	1916	74
0 C (32 F): Frost days (min	16	208	1917	176
-10 C (14 F): Days with min	16	124	1916	60
-20 C (-4 F): Days with min	16	72	1917	11
-30 C (-22 F): Days with min	15	32	1916	5
-40 C (-40 F): Days with min	6	7	1912	1
20 C (68 F): Tropical nights (min	14	14	1931	14
25 C (77 F): Days with min	1	1	1926	1
10 mm (0.39 in): Days with 10 mm or more rain	64	32	1941	16
25 mm (0.98 in): Days with 25 mm or more rain	62	12	1941	5
50 mm (1.97 in): Days with 50 mm or more rain	30	3	1941	2
100 mm (3.94 in): Days with 100 mm or more rain	3	1	1955	1
200 mm (7.87 in): Days with 200 mm or more rain	1	1	1972	1
10 cm (3.9 in): Days with 10 cm or more snowfall	33	8	1965	6
25 cm (9.8 in): Days with 25 cm or more snowfall	3	1	1971	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

Data for Ft Ripley 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).

Ft Ripley Threshold Days by Year (USC00212904)

Key Facts for Ft Ripley Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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