Pomona Weather in August
Average highs run from 86°F on August 1 to 83°F on August 31, and lows from 67°F to 63°F. Normal precipitation for the month is 4.59 in over about 9 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 85°F
- Average low
- 65°F
- Precipitation
- 4.59 in
- Record high
- 103°FAug 9, 2001
- Record low
- 40°FAug 31, 1965
- Chance of a freeze
- 0%
- Days of 90°F or more
- 5.7
- Daylight
- 14 h 13 min to 13 h 05 min
- Cloud cover
- 53%
- Humidity
- 79%
- Dew point
- 67°F
- Wind
- 9.2 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Aug 1 | 86°F | 67°F | 97°F 1999 | 53°F 2001 | 33% | 0% |
| Aug 2 | 86°F | 67°F | 98°F 2006 | 53°F 1976 | 33% | 0% |
| Aug 3 | 86°F | 67°F | 98°F 2006 | 55°F 1959 | 33% | 0% |
| Aug 4 | 86°F | 67°F | 98°F 1995 | 51°F 1964 | 33% | 0% |
| Aug 5 | 86°F | 67°F | 96°F 2010 | 50°F 1992 | 33% | 0% |
| Aug 6 | 86°F | 67°F | 93°F 2018 | 50°F 1972 | 32% | 0% |
| Aug 7 | 86°F | 67°F | 97°F 2001 | 50°F 1994 | 32% | 0% |
| Aug 8 | 86°F | 66°F | 101°F 2007 | 50°F 1994 | 32% | 0% |
| Aug 9 | 86°F | 66°F | 103°F 2001 | 50°F 1994 | 32% | 0% |
| Aug 10 | 86°F | 66°F | 97°F 2001 | 53°F 1972 | 32% | 0% |
| Aug 11 | 85°F | 66°F | 94°F 1992 | 47°F 1972 | 32% | 0% |
| Aug 12 | 85°F | 66°F | 96°F 2016 | 48°F 1968 | 32% | 0% |
| Aug 13 | 85°F | 66°F | 97°F 2016 | 50°F 1971 | 31% | 0% |
| Aug 14 | 85°F | 66°F | 98°F 2016 | 50°F 1983 | 31% | 0% |
| Aug 15 | 85°F | 66°F | 100°F 1988 | 50°F 1964 | 31% | 0% |
| Aug 16 | 85°F | 65°F | 96°F 1997 | 48°F 1972 | 31% | 0% |
| Aug 17 | 85°F | 65°F | 97°F 2002 | 46°F 1979 | 30% | 0% |
| Aug 18 | 85°F | 65°F | 96°F 2002 | 52°F 1979 | 30% | 0% |
| Aug 19 | 85°F | 65°F | 94°F 1965 | 50°F 1976 | 30% | 0% |
| Aug 20 | 85°F | 65°F | 98°F 1983 | 49°F 1976 | 29% | 0% |
| Aug 21 | 84°F | 65°F | 94°F 2005 | 49°F 1995 | 29% | 0% |
| Aug 22 | 84°F | 65°F | 93°F 2003 | 43°F 1969 | 29% | 0% |
| Aug 23 | 84°F | 64°F | 95°F 1966 | 50°F 1988 | 28% | 0% |
| Aug 24 | 84°F | 64°F | 93°F 1998 | 46°F 1971 | 28% | 0% |
| Aug 25 | 84°F | 64°F | 97°F 1968 | 47°F 1987 | 28% | 0% |
| Aug 26 | 84°F | 64°F | 96°F 2016 | 48°F 1995 | 27% | 0% |
| Aug 27 | 84°F | 64°F | 93°F 2020 | 48°F 1969 | 27% | 0% |
| Aug 28 | 83°F | 63°F | 97°F 1973 | 44°F 1986 | 27% | 0% |
| Aug 29 | 83°F | 63°F | 98°F 2010 | 41°F 1982 | 27% | 0% |
| Aug 30 | 83°F | 63°F | 96°F 1973 | 41°F 1986 | 27% | 0% |
| Aug 31 | 83°F | 63°F | 99°F 2010 | 40°F 1965 | 27% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- August 1
- sunrise 5:58 AM, sunset 8:11 PM
- August 31
- sunrise 6:26 AM, sunset 7:31 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093730 (Atlantic City Intl AP), public domain. Records: NOAA GHCN-Daily, station USW00093730, 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.