All-time weather records — Glenns Ferry, ID

Record high
115.0°F
July 16, 1925
Record low
-27.9°F
December 25, 1924
Wettest day
3.45 in
May 16, 1925

Climate change signal in Glenns Ferry

11.7%

of Glenns Ferry's all-time daily heat records were set in the last decade (43 of 366 records since 2015).

3%

of all-time daily cold records were set in the last decade (11 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 #
1900s
21
21
1910s
48
62
1920s
40
42
1930s
62
24
1940s
15
18
1950s
16
32
1960s
23
20
1970s
17
41
1980s
7
39
1990s
30
37
2000s
35
14
2010s
28
11
2020s
24
5

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 1905, the latest in 2026. Period of observation: 1905-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 84.9°F — Jan 7, 1905 -23.1°F — Jan 18, 1922 1.50 in — Jan 2, 1997
February 73.9°F — Feb 15, 1931 -16.1°F — Feb 7, 1933 0.88 in — Feb 13, 1986
March 90.0°F — Mar 31, 1919 3.9°F — Mar 3, 1989 1.15 in — Mar 8, 1943
April 97.0°F — Apr 25, 1910 14.0°F — Apr 1, 1936 2.05 in — Apr 13, 1930
May 108.0°F — May 29, 2003 19.0°F — May 6, 1909 3.45 in — May 16, 1925
June 114.1°F — Jun 29, 2015 26.1°F — Jun 6, 1914 2.00 in — Jun 5, 1923
July 115.0°F — Jul 16, 1925 0.0°F — Jul 26, 2021 0.90 in — Jul 13, 1932
August 111.9°F — Aug 7, 1905 30.9°F — Aug 28, 1927 1.10 in — Aug 11, 1941
September 109.0°F — Sep 1, 2022 0.0°F — Sep 7, 2021 1.80 in — Sep 26, 1923
October 96.1°F — Oct 2, 2010 8.1°F — Oct 31, 2002 1.30 in — Oct 25, 2021
November 84.9°F — Nov 4, 1988 -9.0°F — Nov 26, 1985 1.40 in — Nov 25, 1958
December 75.0°F — Dec 11, 1933 -27.9°F — Dec 25, 1924 1.32 in — Dec 11, 1955

Click a month to see every daily record for that month in Glenns Ferry.