All-time weather records — Mackay, ID

Record high
104.0°F
July 27, 1939
Record low
-44.0°F
January 16, 1987
Wettest day
3.20 in
March 1, 1932

Climate change signal in Mackay

12.6%

of Mackay's all-time daily heat records were set in the last decade (46 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 #
1900s
·
34
1910s
50
35
1920s
43
29
1930s
101
26
1940s
24
26
1950s
10
24
1960s
15
40
1970s
15
27
1980s
30
73
1990s
22
29
2000s
5
11
2010s
8
8
2020s
43
4

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 1910, the latest in 2026. Period of observation: 1908-2026.

Records by month

Month Hottest day Coldest day Wettest day
January 55.9°F — Jan 1, 1918 -44.0°F — Jan 16, 1987 1.28 in — Jan 16, 1952
February 66.9°F — Feb 14, 1924 -33.0°F — Feb 4, 1985 3.20 in — Mar 1, 1932
March 78.1°F — Mar 19, 2026 -18.0°F — Mar 2, 1943 1.42 in — Mar 27, 1980
April 87.1°F — Apr 22, 2012 -7.1°F — Apr 1, 1936 1.59 in — Apr 19, 1981
May 100.0°F — May 30, 1939 12.9°F — May 1, 1984 1.51 in — May 31, 1927
June 100.0°F — Jun 30, 1939 19.0°F — Jun 25, 1985 1.45 in — Jun 30, 1938
July 104.0°F — Jul 27, 1939 27.0°F — Jul 26, 1909 1.81 in — Jul 17, 1987
August 102.9°F — Aug 15, 1939 21.9°F — Aug 26, 1908 1.11 in — Aug 1, 1952
September 98.1°F — Sep 19, 1939 10.0°F — Sep 30, 1985 1.45 in — Sep 13, 1980
October 84.9°F — Oct 14, 1918 -5.1°F — Oct 30, 2019 1.25 in — Oct 5, 2011
November 70.0°F — Nov 4, 1931 -17.0°F — Nov 26, 1993 1.06 in — Nov 19, 1946
December 57.9°F — Dec 11, 2025 -32.1°F — Dec 22, 1990 1.16 in — Dec 3, 1941

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