All-time weather records — Bonanza, OR

Record high
104.0°F
September 4, 1955
Record low
-33.0°F
January 31, 1950
Wettest day
2.34 in
August 28, 1934

Climate change signal in Bonanza

29%

of Bonanza's all-time daily heat records were set in the last decade (106 of 366 records since 2015).

14.2%

of all-time daily cold records were set in the last decade (52 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 #
1920s
·
·
1930s
·
·
1940s
105
140
1950s
155
174
2010s
31
28
2020s
75
24

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 1944, the latest in 2022. Period of observation: 1925-2022.

Records by month

Month Hottest day Coldest day Wettest day
January 59.0°F — Jan 23, 1948 -33.0°F — Jan 31, 1950 0.94 in — Jan 7, 1935
February 66.0°F — Feb 24, 1949 -29.9°F — Feb 2, 1950 1.22 in — Feb 22, 1956
March 71.1°F — Mar 17, 1947 -14.1°F — Mar 10, 1951 1.25 in — Mar 23, 1938
April 80.1°F — Apr 24, 1946 12.9°F — Apr 6, 1948 0.97 in — Apr 7, 1935
May 93.0°F — May 18, 1954 19.0°F — May 1, 1954 1.07 in — May 6, 1926
June 100.9°F — Jun 29, 2021 25.0°F — Jun 1, 1954 1.19 in — Jun 23, 1952
July 102.0°F — Jul 21, 1946 30.0°F — Jul 1, 1955 1.02 in — Jul 11, 1952
August 100.9°F — Aug 1, 1954 28.9°F — Aug 3, 1956 2.34 in — Aug 28, 1934
September 104.0°F — Sep 4, 1955 21.0°F — Sep 30, 1950 1.08 in — Sep 12, 1939
October 90.0°F — Oct 2, 1952 10.0°F — Oct 31, 2019 1.42 in — Oct 30, 1945
November 79.0°F — Nov 1, 1949 0.0°F — Nov 30, 2019 1.30 in — Nov 9, 1944
December 63.0°F — Dec 2, 2021 -22.0°F — Dec 22, 1948 1.98 in — Dec 9, 1939

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