Foresthill Weather in May
Average highs run from 70°F on May 1 to 78°F on May 31, and lows from 46°F to 52°F. Normal precipitation for the month is 2.27 in over about 6 wet days.
May day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
May at a glance
- Average high
- 74°F
- Average low
- 49°F
- Precipitation
- 2.27 in
- Record high
- 102°FMay 31, 1910
- Record low
- 25°FMay 8, 1933
- Chance of a freeze
- 8%
- Days of 90°F or more
- 1.7
- Daylight
- 13 h 51 min to 14 h 43 min
- Cloud cover
- 49%
- Humidity
- 61%
- Dew point
- 48°F
- Wind
- 6.3 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 |
|---|---|---|---|---|---|---|
| May 1 | 70°F | 46°F | 90°F 1981 | 34°F 1951 | 21% | |
| May 2 | 70°F | 46°F | 95°F 1947 | 35°F 1964 | 21% | |
| May 3 | 71°F | 46°F | 95°F 1947 | 35°F 1964 | 20% | |
| May 4 | 71°F | 47°F | 93°F 1918 | 35°F 1975 | 20% | |
| May 5 | 71°F | 47°F | 90°F 1990 | 34°F 1924 | 20% | |
| May 6 | 72°F | 47°F | 91°F 1947 | 32°F 1912 | 19% | |
| May 7 | 72°F | 47°F | 95°F 1987 | 34°F 1950 | 19% | |
| May 8 | 72°F | 47°F | 96°F 1931 | 25°F 1933 | 19% | |
| May 9 | 72°F | 48°F | 92°F 2001 | 32°F 1953 | 19% | |
| May 10 | 73°F | 48°F | 94°F 1934 | 30°F 2022 | 19% | |
| May 11 | 73°F | 48°F | 94°F 1934 | 29°F 2022 | 18% | |
| May 12 | 73°F | 48°F | 92°F 1987 | 36°F 2022 | 18% | |
| May 13 | 74°F | 49°F | 96°F 1927 | 35°F 1912 | 18% | |
| May 14 | 74°F | 49°F | 97°F 1927 | 37°F 1955 | 18% | |
| May 15 | 74°F | 49°F | 98°F 1927 | 39°F 1917 | 18% | |
| May 16 | 74°F | 49°F | 100°F 2008 | 38°F 1917 | 18% | |
| May 17 | 75°F | 49°F | 100°F 2008 | 38°F 1971 | 17% | |
| May 18 | 75°F | 50°F | 96°F 2009 | 35°F 1974 | 17% | 0% |
| May 19 | 75°F | 50°F | 97°F 2008 | 37°F 1974 | 17% | 0% |
| May 20 | 75°F | 50°F | 98°F 1947 | 38°F 1927 | 17% | 0% |
| May 21 | 76°F | 50°F | 100°F 1947 | 38°F 1927 | 17% | 0% |
| May 22 | 76°F | 50°F | 99°F 1947 | 38°F 2010 | 16% | 0% |
| May 23 | 76°F | 51°F | 97°F 1943 | 42°F 1914 | 16% | 0% |
| May 24 | 76°F | 51°F | 98°F 1943 | 36°F 2010 | 16% | 0% |
| May 25 | 77°F | 51°F | 99°F 1982 | 38°F 1923 | 15% | 0% |
| May 26 | 77°F | 51°F | 96°F 1951 | 35°F 1911 | 15% | 0% |
| May 27 | 77°F | 51°F | 96°F 1951 | 39°F 1905 | 15% | 0% |
| May 28 | 77°F | 52°F | 97°F 1919 | 35°F 2019 | 14% | 0% |
| May 29 | 78°F | 52°F | 101°F 1984 | 40°F 1927 | 14% | 0% |
| May 30 | 78°F | 52°F | 100°F 1950 | 39°F 1923 | 14% | 0% |
| May 31 | 78°F | 52°F | 102°F 1910 | 39°F 2011 | 13% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:05 AM, sunset 7:56 PM
- May 31
- sunrise 5:40 AM, sunset 8:23 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00041912 (Colfax), public domain. Records: NOAA GHCN-Daily, station USC00040383, 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.