Cheyenne, WY: records

4 October 2026: The hottest day on record in Cheyenne, WY: 100°F on Wednesday 23 June 1954, Tuesday 11 July 1939, Friday 15 July 1881 and 1 other day.

The record begins: 1871

All-time records

The coldest night on record in Cheyenne, WY: a low of -38°F on Saturday 9 January 1875.
The wettest day on record in Cheyenne, WY: 6.06 in on Thursday 1 August 1985.
The warmest night on record in Cheyenne, WY: a low of 68°F on Sunday 31 July 1960.
The coldest day on record in Cheyenne, WY: a high of -21°F on Friday 11 January 1963.

Records by month

Month	Highest	Lowest	Wettest day
January	70°F 27 January 2015	-38°F 9 January 1875	1.32 in 3 January 1949
February	71°F 11 February 1962	-34°F 8 February 1936	1.57 in 19 February 1953
March	83°F 21 March 2026	-21°F 2 March 1943	1.95 in 14 March 2021
April	84°F 30 April 2020	-8°F 1 April 1975	2.45 in 24 April 1929
May	91°F 29 May 2003, 29 May 2000	8°F 3 May 1907	2.06 in 30 May 1896
June	100°F 23 June 1954	25°F 2 June 1951	3.06 in 14 June 1926
July	100°F 11 July 1939, 15 July 1881, 14 July 1881	33°F 4 July 1915	3.65 in 15 July 1896
August	98°F 2 August 2026, 5 August 2022, 2 August 2008 and 1 more	25°F 25 August 1910	6.06 in 1 August 1985
September	97°F 7 September 2022	8°F 30 September 1985	2.69 in 8 September 1973
October	85°F 2 October 2024, 9 October 1910	-5°F 26 October 1878	1.35 in 5 October 1874
November	75°F 16 November 2016, 15 November 1999, 5 November 1891	-21°F 13 November 1916	1.63 in 20 November 1979
December	70°F 2 December 2021	-28°F 22 December 1990, 21 December 1990, 22 December 1989 and 3 more	1.28 in 13 December 1925

Streaks, months and years

The longest run of days with a high of 90°F or above in Cheyenne, WY: 10 days, from Saturday 12 July to Monday 21 July 2003.
The longest run of days with a high of 32°F or below in Cheyenne, WY: 17 days, from Sunday 29 January to Tuesday 14 February 1905.
The wettest month on record in Cheyenne, WY: April 1900, with 7.66 in of precipitation.
The driest month on record in Cheyenne, WY: February 1887, with 0.00 in of precipitation (shared with 2 other months).
The wettest year on record in Cheyenne, WY: 1942, with 23.69 in of precipitation.
The driest year on record in Cheyenne, WY: 1876, with 5.04 in of precipitation.

Daily records by decade

New daily records set in Cheyenne, WY by decade since the 1900s: the most record highs, 85, came in the 1930s; the most record lows, 74, in the 1910s.

Record highs
Record lows

Every decade as a table

Decade	Record highs	Record lows	Years in the record
1870s	0	0	9
1880s	0	0	10
1890s	0	0	10
1900s	65	71	10
1910s	48	74	10
1920s	27	42	10
1930s	85	48	10
1940s	65	38	10
1950s	62	39	10
1960s	58	28	10
1970s	24	21	10
1980s	44	30	10
1990s	41	16	10
2000s	66	12	10
2010s	48	10	10
2020s	58	9	7

Cheyenne, WY