Sheyenne Threshold Days by Year (USC00328057)

13 fixed thresholds counted per year at Sheyenne (USC00328057): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sheyenne Thresholds

Sheyenne: days with a maximum temperature at or above 30 C (86 F) in 18 years, most in 1976 with 59.
Sheyenne: days with a maximum temperature at or above 90 F (32.2 C) in 18 years, most in 1970 with 31.
Sheyenne: days with a maximum temperature at or below 0 C (32 F) in 18 years, most in 1978 with 116.
Sheyenne: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 1965 with 20.
13 fixed thresholds have at least one qualifying day at Sheyenne.

Days at or above 30 C (86 F)

18 years with a qualifying day

Days per year at Sheyenne with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 59 in 1976.

Days at or above 30 C (86 F) per year at Sheyenne
Year	Days	Decade average
1897	34	25
1898	16	25
1965	10	29.6
1966	32	29.6
1967	47	29.6
1968	25	29.6
1969	34	29.6
1970	52	37.7
1971	22	37.7
1972	37	37.7
1974	41	37.7
1975	31	37.7
1976	59	37.7
1977	33	37.7
1978	39	37.7
1979	25	37.7
1980	38	30.5
1981	23	30.5

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

First to last qualifying date each year at Sheyenne
Year	First date	Last date
1897	1897-05-04	1897-10-01
1898	1898-05-23	1898-09-27
1965	1965-05-13	1965-08-16
1966	1966-05-21	1966-09-12
1967	1967-05-24	1967-09-11
1968	1968-06-02	1968-09-14
1969	1969-05-14	1969-09-14
1970	1970-05-17	1970-09-20
1971	1971-06-03	1971-09-04
1972	1972-05-15	1972-09-10
1974	1974-06-03	1974-09-26
1975	1975-05-16	1975-08-28
1976	1976-05-09	1976-10-03
1977	1977-04-09	1977-08-19
1978	1978-05-25	1978-09-10
1979	1979-05-16	1979-09-26
1980	1980-04-20	1980-09-08
1981	1981-06-27	1981-09-13

Every Fixed Threshold

Fixed thresholds at Sheyenne
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	18	59	1976	23
35 C (95 F): Days	17	12	1978	1
90 F (32.2 C): Days	18	31	1970	8
100 F (37.8 C): Days	6	4	1978	4
0 C (32 F): Ice days (max	18	116	1978	61
0 C (32 F): Frost days (min	16	203	1972	160
-10 C (14 F): Days with min	16	124	1897	65
-20 C (-4 F): Days with min	16	77	1897	33
-30 C (-22 F): Days with min	15	18	1966	6
20 C (68 F): Tropical nights (min	10	6	1975	2
10 mm (0.39 in): Days with 10 mm or more rain	18	20	1965	14
25 mm (0.98 in): Days with 25 mm or more rain	16	7	1971	5
50 mm (1.97 in): Days with 50 mm or more rain	5	3	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 1897.

Download the Data

Data for Sheyenne 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).

Sheyenne Threshold Days by Year (USC00328057)

Key Facts for Sheyenne Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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