All-time weather records — Idaho City, ID

Record high
109.0°F
July 29, 1934
Record low
-38.0°F
January 21, 1937
Wettest day
4.55 in
December 16, 1929

Climate change signal in Idaho City

0%

of Idaho City's all-time daily heat records were set in the last decade (0 of 366 records since 2015).

0%

of all-time daily cold records were set in the last decade (0 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
11
21
1900s
28
12
1910s
16
46
1920s
95
34
1930s
97
63
1940s
32
39
1950s
17
42
1960s
11
27
1970s
10
20
1980s
23
19
1990s
15
29
2000s
10
8
2010s
1
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 1894, the latest in 2012. Period of observation: 1894-2013.

Records by month

Month Hottest day Coldest day Wettest day
January 75.0°F — Jan 3, 1901 -38.0°F — Jan 21, 1937 3.30 in — Jan 31, 1940
February 75.9°F — Feb 25, 1900 -35.0°F — Feb 2, 1950 2.09 in — Feb 1, 1963
March 78.1°F — Mar 23, 1926 -20.0°F — Mar 5, 1955 2.38 in — Mar 31, 1928
April 89.1°F — Apr 28, 1919 -8.0°F — Apr 1, 1936 1.60 in — Apr 13, 1900
May 97.0°F — May 18, 1919 10.9°F — May 8, 1919 1.58 in — May 20, 1923
June 106.0°F — Jun 19, 1940 19.9°F — Jun 10, 1982 2.61 in — Jun 12, 1958
July 109.0°F — Jul 29, 1934 26.1°F — Jul 2, 1955 2.00 in — Jul 4, 1902
August 106.0°F — Aug 4, 1961 24.1°F — Aug 31, 1932 1.60 in — Aug 11, 1941
September 100.0°F — Sep 3, 1950 10.9°F — Sep 30, 1954 1.77 in — Sep 20, 1982
October 93.0°F — Oct 1, 1895 1.9°F — Oct 29, 1971 2.80 in — Oct 19, 1900
November 75.0°F — Nov 4, 1931 -18.0°F — Nov 23, 1985 2.50 in — Nov 20, 1921
December 78.1°F — Dec 29, 1917 -32.1°F — Dec 22, 1990 4.55 in — Dec 16, 1929

Click a month to see every daily record for that month in Idaho City.