All-time weather records — Green River, WY

Record high
104.0°F
July 8, 1954
Record low
-42.0°F
December 31, 1978
Wettest day
2.11 in
May 8, 1921

Climate change signal in Green River

15.6%

of Green River's all-time daily heat records were set in the last decade (57 of 366 records since 2015).

2.7%

of all-time daily cold records were set in the last decade (10 of 366 records since 2015).

If records were spread evenly across the station's history, you'd expect roughly 5% per decade. Decade-by-decade, here's where each record-breaking day was set:

Decade Heat records set # Cold records set #
1890s
15
·
1900s
9
28
1910s
24
50
1920s
32
26
1930s
72
23
1940s
23
20
1950s
22
32
1960s
7
48
1970s
7
52
1980s
27
40
1990s
25
26
2000s
26
8
2010s
34
7
2020s
43
6

Records are the all-time daily extremes that are still standing — each daily record can only be held by one year. The station's earliest hot record was set in 1897, the latest in 2026. Period of observation: 1897-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 60.1°F — Jan 9, 1983 -40.0°F — Jan 1, 1979 1.10 in — Jan 25, 2017
February 72.0°F — Feb 23, 1983 -41.1°F — Feb 1, 1985 1.30 in — Feb 24, 2017
March 84.0°F — Mar 26, 2026 -26.0°F — Mar 1, 1960 1.16 in — Mar 31, 1957
April 86.0°F — Apr 29, 1939 -2.0°F — Apr 15, 1922 1.10 in — Apr 4, 2023
May 93.9°F — May 27, 2003 9.0°F — May 10, 2015 2.11 in — May 8, 1921
June 102.9°F — Jun 19, 1940 21.9°F — Jun 1, 1990 1.42 in — Jun 10, 1965
July 104.0°F — Jul 8, 1954 30.9°F — Jul 1, 1968 2.00 in — Jul 24, 1977
August 100.0°F — Aug 6, 1979 23.0°F — Aug 31, 1908 1.35 in — Aug 16, 1931
September 98.1°F — Sep 6, 1998 3.9°F — Sep 18, 1965 1.54 in — Sep 1, 2008
October 89.1°F — Oct 2, 1906 -9.0°F — Oct 31, 2019 1.38 in — Oct 24, 1956
November 73.0°F — Nov 8, 1931 -18.9°F — Nov 29, 1979 1.60 in — Nov 22, 2003
December 66.0°F — Dec 11, 1939 -42.0°F — Dec 31, 1978 0.80 in — Dec 20, 1981

Click a month to see every daily record for that month in Green River.