Tuolumne County Weather in May
Average highs run from 65°F on May 1 to 75°F on May 31, and lows from 40°F to 47°F. Normal precipitation for the month is 2.57 in over about 7 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
- 70°F
- Average low
- 44°F
- Precipitation
- 2.57 in
- Snowfall
- 1.1 in
- Record high
- 103°FMay 28, 1984
- Record low
- 24°FMay 7, 1961
- Chance of a freeze
- 50%
- Daylight
- 13 h 48 min to 14 h 37 min
- Cloud cover
- 52%
- Humidity
- 61%
- Dew point
- 37°F
- Wind
- 5.4 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 | 65°F | 40°F | 89°F 1945 | 30°F 1967 | 24% | 4% |
| May 2 | 66°F | 40°F | 95°F 1947 | 31°F 1964 | 24% | 4% |
| May 3 | 66°F | 41°F | 96°F 1906 | 32°F 1938 | 23% | 3% |
| May 4 | 66°F | 41°F | 93°F 1992 | 32°F 1917 | 23% | 3% |
| May 5 | 67°F | 41°F | 93°F 1992 | 29°F 1986 | 23% | 3% |
| May 6 | 67°F | 41°F | 95°F 1987 | 29°F 1986 | 23% | 3% |
| May 7 | 67°F | 42°F | 97°F 1987 | 24°F 1961 | 23% | 3% |
| May 8 | 68°F | 42°F | 97°F 1924 | 32°F 1950 | 22% | 3% |
| May 9 | 68°F | 42°F | 98°F 1924 | 32°F 1984 | 22% | 3% |
| May 10 | 68°F | 42°F | 92°F 1934 | 33°F 1933 | 22% | 2% |
| May 11 | 68°F | 43°F | 93°F 1934 | 31°F 2000 | 22% | 2% |
| May 12 | 69°F | 43°F | 93°F 1934 | 32°F 2010 | 21% | 2% |
| May 13 | 69°F | 43°F | 95°F 1976 | 36°F 1942 | 21% | 2% |
| May 14 | 69°F | 43°F | 98°F 1976 | 34°F 1917 | 21% | 2% |
| May 15 | 70°F | 44°F | 96°F 1927 | 34°F 1999 | 21% | 2% |
| May 16 | 70°F | 44°F | 94°F 1924 | 30°F 1917 | 20% | 2% |
| May 17 | 70°F | 44°F | 98°F 1958 | 30°F 1974 | 20% | 2% |
| May 18 | 71°F | 44°F | 98°F 1970 | 29°F 1917 | 20% | 2% |
| May 19 | 71°F | 45°F | 96°F 2008 | 33°F 1991 | 20% | 2% |
| May 20 | 71°F | 45°F | 96°F 1966 | 34°F 1917 | 19% | 2% |
| May 21 | 72°F | 45°F | 96°F 1947 | 31°F 1927 | 19% | 2% |
| May 22 | 72°F | 45°F | 96°F 1924 | 33°F 1991 | 19% | 2% |
| May 23 | 72°F | 46°F | 99°F 2014 | 32°F 1917 | 18% | 2% |
| May 24 | 73°F | 46°F | 96°F 1943 | 29°F 1917 | 18% | 2% |
| May 25 | 73°F | 46°F | 96°F 1982 | 31°F 1917 | 17% | 1% |
| May 26 | 73°F | 46°F | 99°F 1966 | 34°F 1917 | 17% | 1% |
| May 27 | 73°F | 47°F | 96°F 1984 | 32°F 1917 | 17% | 1% |
| May 28 | 74°F | 47°F | 103°F 1984 | 34°F 1917 | 16% | 1% |
| May 29 | 74°F | 47°F | 99°F 1984 | 35°F 1917 | 16% | 1% |
| May 30 | 74°F | 47°F | 102°F 1910 | 34°F 1917 | 15% | 1% |
| May 31 | 75°F | 47°F | 101°F 1910 | 35°F 1917 | 15% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 6:03 AM, sunset 7:51 PM
- May 31
- sunrise 5:39 AM, sunset 8:16 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00041697 (Cherry Valley Dam), public domain. Records: NOAA GHCN-Daily, station USC00048353, 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.