Richland Weather in October
Average highs run from 85°F on October 1 to 76°F on October 31, and lows from 58°F to 44°F. Normal precipitation for the month is 3.56 in over about 4 wet days.
October day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
October at a glance
- Average high
- 81°F
- Average low
- 51°F
- Precipitation
- 3.56 in
- Record high
- 101°FOct 4, 2019
- Record low
- 24°FOct 30, 1952
- Chance of a freeze
- 31%
- Days of 90°F or more
- 1.2
- Daylight
- 11 h 50 min to 10 h 54 min
- Cloud cover
- 44%
- Humidity
- 69%
- Dew point
- 55°F
- Wind
- 7.2 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Oct 1 | 85°F | 58°F | 97°F 2019 | 44°F 1967 | 16% |
| Oct 2 | 84°F | 57°F | 96°F 2019 | 42°F 1984 | 15% |
| Oct 3 | 84°F | 57°F | 100°F 2019 | 43°F 1974 | 15% |
| Oct 4 | 84°F | 56°F | 101°F 2019 | 40°F 1974 | 15% |
| Oct 5 | 84°F | 56°F | 96°F 1954 | 40°F 1968 | 15% |
| Oct 6 | 83°F | 56°F | 95°F 1954 | 45°F 1961 | 15% |
| Oct 7 | 83°F | 55°F | 91°F 1990 | 44°F 1980 | 15% |
| Oct 8 | 83°F | 55°F | 91°F 1990 | 40°F 1991 | 15% |
| Oct 9 | 82°F | 54°F | 90°F 1990 | 40°F 1987 | 15% |
| Oct 10 | 82°F | 54°F | 91°F 2017 | 40°F 2000 | 15% |
| Oct 11 | 82°F | 53°F | 92°F 2017 | 41°F 2000 | 15% |
| Oct 12 | 82°F | 53°F | 92°F 2017 | 41°F 1951 | 15% |
| Oct 13 | 81°F | 52°F | 89°F 1975 | 42°F 1977 | 15% |
| Oct 14 | 81°F | 52°F | 90°F 1954 | 37°F 1988 | 15% |
| Oct 15 | 81°F | 52°F | 88°F 1950 | 37°F 1955 | 15% |
| Oct 16 | 81°F | 51°F | 89°F 1984 | 37°F 1955 | 15% |
| Oct 17 | 80°F | 51°F | 87°F 1984 | 34°F 1954 | 15% |
| Oct 18 | 80°F | 50°F | 90°F 1984 | 36°F 1977 | 15% |
| Oct 19 | 80°F | 50°F | 89°F 2016 | 35°F 1948 | 15% |
| Oct 20 | 80°F | 49°F | 88°F 1985 | 33°F 2022 | 15% |
| Oct 21 | 79°F | 49°F | 89°F 1963 | 32°F 1989 | 15% |
| Oct 22 | 79°F | 48°F | 88°F 1984 | 34°F 1987 | 15% |
| Oct 23 | 79°F | 48°F | 90°F 1984 | 36°F 1987 | 15% |
| Oct 24 | 78°F | 47°F | 90°F 1984 | 37°F 1974 | 15% |
| Oct 25 | 78°F | 47°F | 87°F 1984 | 34°F 1962 | 15% |
| Oct 26 | 78°F | 47°F | 88°F 2010 | 31°F 1962 | 15% |
| Oct 27 | 77°F | 46°F | 89°F 1984 | 31°F 1962 | 15% |
| Oct 28 | 77°F | 46°F | 88°F 1996 | 31°F 1957 | 15% |
| Oct 29 | 77°F | 45°F | 85°F 2016 | 29°F 1976 | 15% |
| Oct 30 | 77°F | 45°F | 90°F 1984 | 24°F 1952 | 16% |
| Oct 31 | 76°F | 44°F | 88°F 2016 | 29°F 1954 | 16% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (EDT).
- October 1
- sunrise 7:33 AM, sunset 7:23 PM
- October 31
- sunrise 7:55 AM, sunset 6:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00095394 (Lumpkin 2 Se), public domain. Records: NOAA GHCN-Daily, station USW00093842, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.