Highest Daily Low Temperatures in Richland History

This is a list of the hottest daily low temperatures ever recorded in Richland, Washington history from 1894–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in Richland

The highest low temperature for a calendar day in Richland, Washington history was 82 °F which has happened twice, most recently on Saturday July 14, 1906.

Rank	Temperature	Date
1	82 °F	July 14, 1906
1	82 °F	July 5, 1906
3	81 °F	July 27, 1928
3	81 °F	July 4, 1906
5	80 °F	July 11, 1975
5	80 °F	July 22, 1908
5	80 °F	July 18, 1906
5	80 °F	July 15, 1906
5	80 °F	June 30, 1904
5	80 °F	August 8, 1898
5	80 °F	June 27, 1896
12	79 °F	July 18, 1941
12	79 °F	August 10, 1898
14	78 °F	August 5, 1961
14	78 °F	July 14, 1961
16	77 °F	June 29, 2015
16	77 °F	July 4, 2006
16	77 °F	July 20, 1956
16	77 °F	July 8, 1953
16	77 °F	July 17, 1941
16	77 °F	July 28, 1938
16	77 °F	July 16, 1933
16	77 °F	August 1, 1929
16	77 °F	July 5, 1905