Chester Weather in May
Average highs run from 61°F on May 1 to 70°F on May 31, and lows from 32°F to 43°F. Normal precipitation for the month is 1.68 in over about 10 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
- 66°F
- Average low
- 38°F
- Precipitation
- 1.68 in
- Snowfall
- 0.4 in
- Record high
- 91°FMay 24, 2001
- Record low
- 12°FMay 2, 1954
- Chance of a freeze
- 98%
- Daylight
- 14 h 35 min to 15 h 50 min
- Cloud cover
- 67%
- Humidity
- 55%
- Dew point
- 36°F
- Wind
- 10.7 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 | 61°F | 32°F | 83°F 2000 | 16°F 2013 | 27% | 3% |
| May 2 | 61°F | 33°F | 85°F 1957 | 12°F 1954 | 27% | 3% |
| May 3 | 62°F | 33°F | 82°F 1998 | 20°F 1956 | 28% | 2% |
| May 4 | 62°F | 34°F | 86°F 2016 | 18°F 2001 | 28% | 2% |
| May 5 | 63°F | 34°F | 86°F 2016 | 24°F 1996 | 29% | 2% |
| May 6 | 63°F | 34°F | 86°F 1953 | 22°F 2010 | 29% | 2% |
| May 7 | 63°F | 35°F | 84°F 1953 | 23°F 2003 | 29% | 2% |
| May 8 | 64°F | 35°F | 80°F 2007 | 26°F 1996 | 30% | 2% |
| May 9 | 64°F | 36°F | 81°F 2016 | 20°F 2002 | 30% | 2% |
| May 10 | 64°F | 36°F | 81°F 2025 | 24°F 2008 | 30% | 2% |
| May 11 | 65°F | 36°F | 83°F 2025 | 20°F 2012 | 31% | 2% |
| May 12 | 65°F | 37°F | 86°F 2007 | 20°F 2012 | 31% | 1% |
| May 13 | 65°F | 37°F | 82°F 2001 | 22°F 1956 | 32% | 1% |
| May 14 | 66°F | 38°F | 82°F 2013 | 26°F 2000 | 32% | 1% |
| May 15 | 66°F | 38°F | 84°F 1997 | 20°F 1955 | 32% | 1% |
| May 16 | 66°F | 38°F | 88°F 2012 | 28°F 2002 | 33% | 1% |
| May 17 | 66°F | 39°F | 89°F 2006 | 26°F 1955 | 33% | 1% |
| May 18 | 67°F | 39°F | 90°F 2006 | 23°F 2026 | 34% | 1% |
| May 19 | 67°F | 40°F | 87°F 1954 | 28°F 1997 | 35% | 1% |
| May 20 | 67°F | 40°F | 86°F 1958 | 28°F 2003 | 35% | 1% |
| May 21 | 68°F | 40°F | 85°F 1958 | 27°F 2001 | 36% | 1% |
| May 22 | 68°F | 41°F | 87°F 1951 | 24°F 2022 | 36% | 1% |
| May 23 | 68°F | 41°F | 87°F 2001 | 25°F 1957 | 36% | 1% |
| May 24 | 68°F | 41°F | 91°F 2001 | 28°F 1950 | 37% | 1% |
| May 25 | 68°F | 42°F | 89°F 2003 | 31°F 1955 | 37% | 1% |
| May 26 | 69°F | 42°F | 86°F 1998 | 32°F 2007 | 38% | 1% |
| May 27 | 69°F | 42°F | 90°F 2026 | 31°F 1995 | 38% | 0% |
| May 28 | 69°F | 43°F | 90°F 1958 | 25°F 1955 | 38% | 0% |
| May 29 | 69°F | 43°F | 88°F 2026 | 23°F 1951 | 38% | 0% |
| May 30 | 69°F | 43°F | 89°F 2025 | 32°F 1951 | 38% | 0% |
| May 31 | 70°F | 43°F | 85°F 1956 | 31°F 1952 | 39% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- May 1
- sunrise 6:04 AM, sunset 8:39 PM
- May 31
- sunrise 5:27 AM, sunset 9:17 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00241692 (Chester), public domain. Records: NOAA GHCN-Daily, station USC00247500, 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.