Cheyenne Agency Threshold Days by Year (USC00391649)

19 fixed thresholds counted per year at Cheyenne Agency (USC00391649): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Cheyenne Agency Thresholds

Cheyenne Agency: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 1957 with 24.
Cheyenne Agency: days with 25 mm (0.98 in) or more of precipitation in 17 years, most in 1951 with 6.
Cheyenne Agency: days with a maximum temperature at or above 30 C (86 F) in 16 years, most in 1955 with 87.
Cheyenne Agency: days with a maximum temperature at or above 35 C (95 F) in 16 years, most in 1959 with 41.
19 fixed thresholds have at least one qualifying day at Cheyenne Agency.

Days at or above 30 C (86 F)

16 years with a qualifying day

Days per year at Cheyenne Agency with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 87 in 1955.

Days at or above 30 C (86 F) per year at Cheyenne Agency
Year	Days	Decade average
1941	77	55.8
1943	58	55.8
1944	47	55.8
1945	39	55.8
1948	41	55.8
1949	73	55.8
1950	52	67.8
1951	32	67.8
1952	78	67.8
1953	63	67.8
1954	64	67.8
1955	87	67.8
1956	82	67.8
1957	61	67.8
1958	80	67.8
1959	79	67.8

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

First to last qualifying date each year at Cheyenne Agency
Year	First date	Last date
1941	1941-05-03	1941-09-20
1943	1943-05-28	1943-10-12
1944	1944-05-14	1944-09-17
1945	1945-06-22	1945-10-18
1948	1948-05-18	1948-09-29
1949	1949-05-12	1949-10-06
1950	1950-05-23	1950-10-31
1951	1951-06-14	1951-10-02
1952	1952-04-27	1952-09-30
1953	1953-05-30	1953-10-14
1954	1954-05-20	1954-09-26
1955	1955-04-30	1955-10-10
1956	1956-05-20	1956-10-12
1957	1957-05-07	1957-10-02
1958	1958-04-16	1958-10-19
1959	1959-04-06	1959-09-15

Every Fixed Threshold

Fixed thresholds at Cheyenne Agency
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	16	87	1955	79
35 C (95 F): Days	16	41	1959	41
40 C (104 F): Days	12	10	1959	10
90 F (32.2 C): Days	16	70	1955	64
100 F (37.8 C): Days	16	20	1959	20
110 F (43.3 C): Days	6	2	1941	1
0 C (32 F): Ice days (max	16	97	1950	57
0 C (32 F): Frost days (min	15	191	1951	158
-10 C (14 F): Days with min	15	113	1950	67
-20 C (-4 F): Days with min	15	52	1950	18
-30 C (-22 F): Days with min	10	8	1950	1
-40 C (-40 F): Days with min	1	2	1944	2
20 C (68 F): Tropical nights (min	15	23	1941	8
25 C (77 F): Days with min	2	1	1949	1
10 mm (0.39 in): Days with 10 mm or more rain	18	24	1957	10
25 mm (0.98 in): Days with 25 mm or more rain	17	6	1951	5
50 mm (1.97 in): Days with 50 mm or more rain	5	1	1941	1
10 cm (3.9 in): Days with 10 cm or more snowfall	12	5	1953	2
25 cm (9.8 in): Days with 25 cm or more snowfall	1	0	n/a	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

Data for Cheyenne Agency 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).

Cheyenne Agency Threshold Days by Year (USC00391649)

Key Facts for Cheyenne Agency Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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