Richland October Weather

Averages and records for weather in Richland, Washington in the month of October.
Typical Richland October Weather
1991–2020
Average daily high 65.6 °F
Average daily low 39.3 °F
Average monthly precipitation 0.6 inches
Daily chance of precipitation 19.9%
Richland October Weather Records
1894–2024
Highest temperature 90 °F October 6, 2020
Lowest temperature 9 °F October 31, 2002
Highest daily low 65 °F October 3, 1947
Lowest daily high 30 °F October 31, 1935
Hottest average high temperature 76.3 °F 1952
Coldest average high temperature 60.0 °F 1905
Most daily precipitation 1.1 inches October 29, 1982
Most monthly precipitation 2.6 inches 2016
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
October 1 73.3 43.7 88 29
October 2 72.9 43.4 89 29
October 3 72.5 43.0 89 27
October 4 72.1 42.8 88 30
October 5 71.7 42.6 88 28
October 6 71.3 42.4 90 27
October 7 70.9 42.2 88 29
October 8 70.5 42.0 88 28
October 9 69.9 41.7 86 24
October 10 69.4 41.4 87 22
October 11 68.8 41.0 85 19
October 12 68.1 40.7 85 22
October 13 67.4 40.4 88 23
October 14 66.8 40.0 84 22
October 15 66.1 39.6 81 24
October 16 65.5 39.2 81 23
October 17 65.0 38.9 82 25
October 18 64.5 38.6 87 22
October 19 64.0 38.2 80 22
October 20 63.5 37.9 84 21
October 21 62.9 37.6 88 23
October 22 62.3 37.3 81 20
October 23 61.7 37.0 80 22
October 24 61.2 36.7 80 22
October 25 60.7 36.5 78 17
October 26 60.2 36.2 80 18
October 27 59.7 36.0 76 17
October 28 59.1 35.6 79 17
October 29 58.6 35.4 73 16
October 30 58.1 35.3 75 13
October 31 57.7 35.1 75 9
Weather Station Details
Years Station Coordinates
1999–2024 Pasco Tri Cities Airport location
1945–1998 Richland location
1894–1944 Kennewick location