Grants Weather in May
Average highs run from 74°F on May 1 to 86°F on May 31, and lows from 35°F to 43°F. Normal precipitation for the month is 0.52 in over about 3 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
- 80°F
- Average low
- 39°F
- Precipitation
- 0.52 in
- Record high
- 99°FMay 30, 2002
- Record low
- 15°FMay 1, 1970
- Chance of a freeze
- 87%
- Days of 90°F or more
- 2.7
- Daylight
- 13 h 37 min to 14 h 21 min
- Cloud cover
- 42%
- Humidity
- 35%
- Dew point
- 25°F
- Wind
- 11.6 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 | 74°F | 35°F | 89°F 2013 | 15°F 1970 | 11% | |
| May 2 | 74°F | 35°F | 84°F 2000 | 15°F 1967 | 11% | |
| May 3 | 75°F | 36°F | 88°F 2000 | 18°F 1967 | 11% | |
| May 4 | 75°F | 36°F | 89°F 2000 | 21°F 1967 | 11% | |
| May 5 | 75°F | 36°F | 90°F 2000 | 25°F 1953 | 11% | |
| May 6 | 76°F | 36°F | 89°F 2004 | 22°F 1975 | 11% | |
| May 7 | 76°F | 37°F | 90°F 2009 | 17°F 1975 | 11% | |
| May 8 | 76°F | 37°F | 89°F 2009 | 22°F 1975 | 11% | |
| May 9 | 77°F | 37°F | 89°F 2009 | 20°F 1965 | 11% | |
| May 10 | 77°F | 37°F | 88°F 2000 | 25°F 2003 | 11% | |
| May 11 | 77°F | 38°F | 92°F 1996 | 19°F 1956 | 11% | |
| May 12 | 78°F | 38°F | 94°F 1996 | 23°F 2010 | 11% | |
| May 13 | 78°F | 38°F | 91°F 1996 | 26°F 2014 | 11% | |
| May 14 | 79°F | 38°F | 90°F 2006 | 26°F 1967 | 11% | |
| May 15 | 79°F | 39°F | 92°F 2006 | 25°F 1956 | 11% | |
| May 16 | 79°F | 39°F | 90°F 1996 | 27°F 1955 | 11% | |
| May 17 | 80°F | 39°F | 90°F 2003 | 22°F 1983 | 11% | |
| May 18 | 80°F | 39°F | 91°F 1996 | 27°F 1968 | 11% | |
| May 19 | 81°F | 40°F | 93°F 2006 | 18°F 1971 | 11% | |
| May 20 | 81°F | 40°F | 96°F 2008 | 21°F 1974 | 11% | |
| May 21 | 82°F | 40°F | 94°F 2005 | 20°F 1974 | 11% | 0% |
| May 22 | 82°F | 41°F | 96°F 2005 | 29°F 2014 | 11% | 0% |
| May 23 | 82°F | 41°F | 97°F 2005 | 25°F 1975 | 10% | 0% |
| May 24 | 83°F | 41°F | 94°F 2005 | 28°F 1975 | 10% | 0% |
| May 25 | 83°F | 41°F | 96°F 2005 | 23°F 1980 | 10% | 0% |
| May 26 | 84°F | 42°F | 95°F 2005 | 29°F 1980 | 10% | 0% |
| May 27 | 84°F | 42°F | 96°F 2005 | 30°F 2012 | 10% | 0% |
| May 28 | 85°F | 42°F | 97°F 2000 | 28°F 2012 | 10% | 0% |
| May 29 | 85°F | 42°F | 97°F 2000 | 31°F 1953 | 10% | 0% |
| May 30 | 85°F | 43°F | 99°F 2002 | 26°F 1953 | 10% | 0% |
| May 31 | 86°F | 43°F | 97°F 2002 | 28°F 2011 | 10% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- May 1
- sunrise 6:20 AM, sunset 7:57 PM
- May 31
- sunrise 5:59 AM, sunset 8:20 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00293682 (Grants AP), public domain. Records: NOAA GHCN-Daily, station USC00293682, 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.