Fallon Weather in May
Average highs run from 70°F on May 1 to 80°F on May 31, and lows from 38°F to 45°F. Normal precipitation for the month is 0.68 in over about 4 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
- 75°F
- Average low
- 42°F
- Precipitation
- 0.68 in
- Record high
- 101°FMay 29, 1984
- Record low
- 22°FMay 8, 2002
- Chance of a freeze
- 80%
- Days of 90°F or more
- 1.7
- Daylight
- 13 h 53 min to 14 h 46 min
- Cloud cover
- 46%
- Humidity
- 41%
- Dew point
- 33°F
- Wind
- 7.2 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 |
|---|---|---|---|---|---|---|
| May 1 | 70°F | 38°F | 91°F 1981 | 24°F 2008 | 11% | 0% |
| May 2 | 70°F | 38°F | 87°F 2004 | 27°F 1964 | 12% | 0% |
| May 3 | 71°F | 38°F | 92°F 2004 | 27°F 1964 | 12% | 0% |
| May 4 | 71°F | 39°F | 93°F 2004 | 31°F 1959 | 12% | 0% |
| May 5 | 71°F | 39°F | 90°F 1990 | 27°F 1975 | 12% | 0% |
| May 6 | 72°F | 39°F | 92°F 1989 | 23°F 1964 | 12% | 0% |
| May 7 | 72°F | 40°F | 92°F 1989 | 26°F 2010 | 12% | 0% |
| May 8 | 72°F | 40°F | 92°F 2018 | 22°F 2002 | 12% | 0% |
| May 9 | 73°F | 40°F | 90°F 2025 | 28°F 2022 | 13% | 0% |
| May 10 | 73°F | 40°F | 92°F 2026 | 25°F 2022 | 13% | 0% |
| May 11 | 73°F | 41°F | 95°F 2001 | 28°F 2014 | 13% | 0% |
| May 12 | 74°F | 41°F | 94°F 2026 | 32°F 1967 | 13% | 0% |
| May 13 | 74°F | 41°F | 93°F 2013 | 29°F 2008 | 13% | 0% |
| May 14 | 74°F | 42°F | 96°F 1987 | 33°F 1956 | 13% | 0% |
| May 15 | 75°F | 42°F | 96°F 1988 | 29°F 1955 | 13% | 0% |
| May 16 | 75°F | 42°F | 92°F 1970 | 27°F 2011 | 13% | 0% |
| May 17 | 75°F | 42°F | 96°F 2008 | 33°F 1974 | 13% | 0% |
| May 18 | 76°F | 43°F | 99°F 2008 | 32°F 1955 | 13% | 0% |
| May 19 | 76°F | 43°F | 96°F 2008 | 30°F 2026 | 13% | 0% |
| May 20 | 76°F | 43°F | 93°F 1980 | 34°F 1945 | 13% | 0% |
| May 21 | 76°F | 43°F | 94°F 2012 | 30°F 2022 | 13% | 0% |
| May 22 | 77°F | 44°F | 95°F 1967 | 30°F 1960 | 13% | 0% |
| May 23 | 77°F | 44°F | 97°F 2001 | 28°F 2013 | 13% | 0% |
| May 24 | 77°F | 44°F | 95°F 1983 | 32°F 2013 | 13% | 0% |
| May 25 | 78°F | 44°F | 98°F 1992 | 33°F 2010 | 13% | 0% |
| May 26 | 78°F | 45°F | 97°F 1983 | 34°F 1998 | 13% | 0% |
| May 27 | 78°F | 45°F | 98°F 1983 | 32°F 1998 | 13% | 0% |
| May 28 | 79°F | 45°F | 100°F 2003 | 35°F 1982 | 12% | 0% |
| May 29 | 79°F | 45°F | 101°F 1984 | 33°F 1998 | 12% | 0% |
| May 30 | 79°F | 45°F | 98°F 2002 | 34°F 1998 | 12% | 0% |
| May 31 | 80°F | 45°F | 100°F 2025 | 26°F 1955 | 12% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- May 1
- sunrise 5:56 AM, sunset 7:49 PM
- May 31
- sunrise 5:30 AM, sunset 8:16 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00262780 (Fallon Exp Stn), public domain. Records: NOAA GHCN-Daily, station USW00093102, 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.