Iron County Weather in May
Average highs run from 67°F on May 1 to 79°F on May 31, and lows from 36°F to 44°F. Normal precipitation for the month is 0.94 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
- 73°F
- Average low
- 40°F
- Precipitation
- 0.94 in
- Snowfall
- 1.4 in
- Record high
- 96°FMay 29, 1984
- Record low
- 16°FMay 1, 2011
- Chance of a freeze
- 92%
- Days of 90°F or more
- 0.6
- Daylight
- 13 h 47 min to 14 h 36 min
- Cloud cover
- 49%
- Humidity
- 38%
- Dew point
- 28°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 | 67°F | 36°F | 82°F 1981 | 16°F 2011 | 21% | 5% |
| May 2 | 67°F | 36°F | 82°F 1976 | 18°F 2008 | 21% | 5% |
| May 3 | 68°F | 36°F | 84°F 2004 | 23°F 1967 | 21% | 4% |
| May 4 | 68°F | 37°F | 84°F 2004 | 24°F 1959 | 21% | 4% |
| May 5 | 68°F | 37°F | 83°F 1989 | 24°F 1950 | 21% | 4% |
| May 6 | 69°F | 37°F | 87°F 1989 | 25°F 1965 | 20% | 4% |
| May 7 | 69°F | 37°F | 85°F 1989 | 23°F 1968 | 20% | 4% |
| May 8 | 70°F | 38°F | 87°F 1989 | 26°F 1950 | 20% | 3% |
| May 9 | 70°F | 38°F | 88°F 2018 | 21°F 2002 | 20% | 3% |
| May 10 | 71°F | 38°F | 87°F 1960 | 25°F 1950 | 20% | 3% |
| May 11 | 71°F | 38°F | 88°F 1996 | 25°F 1953 | 19% | 3% |
| May 12 | 71°F | 39°F | 91°F 1996 | 22°F 2000 | 19% | 3% |
| May 13 | 72°F | 39°F | 89°F 1996 | 27°F 1967 | 19% | 3% |
| May 14 | 72°F | 39°F | 89°F 1976 | 26°F 1967 | 19% | 3% |
| May 15 | 73°F | 40°F | 87°F 2022 | 29°F 1956 | 18% | 2% |
| May 16 | 73°F | 40°F | 87°F 1997 | 26°F 1955 | 18% | 2% |
| May 17 | 74°F | 40°F | 88°F 2006 | 26°F 1968 | 18% | 2% |
| May 18 | 74°F | 40°F | 91°F 2009 | 28°F 2017 | 18% | 2% |
| May 19 | 74°F | 41°F | 90°F 2008 | 25°F 1960 | 18% | 2% |
| May 20 | 75°F | 41°F | 89°F 2008 | 25°F 1959 | 17% | 2% |
| May 21 | 75°F | 41°F | 88°F 2012 | 25°F 1962 | 17% | 2% |
| May 22 | 76°F | 41°F | 91°F 1967 | 27°F 2002 | 17% | 2% |
| May 23 | 76°F | 42°F | 93°F 2000 | 32°F 2010 | 17% | 2% |
| May 24 | 77°F | 42°F | 90°F 2001 | 27°F 2002 | 16% | 2% |
| May 25 | 77°F | 42°F | 90°F 2001 | 27°F 2010 | 16% | 2% |
| May 26 | 77°F | 42°F | 91°F 1951 | 28°F 1980 | 16% | 1% |
| May 27 | 78°F | 43°F | 90°F 1986 | 33°F 1995 | 15% | 1% |
| May 28 | 78°F | 43°F | 95°F 1984 | 29°F 2006 | 15% | 1% |
| May 29 | 79°F | 43°F | 96°F 1984 | 28°F 1953 | 15% | 1% |
| May 30 | 79°F | 43°F | 94°F 2002 | 29°F 2022 | 14% | 1% |
| May 31 | 79°F | 44°F | 93°F 2002 | 32°F 1988 | 14% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- May 1
- sunrise 6:37 AM, sunset 8:24 PM
- May 31
- sunrise 6:13 AM, sunset 8:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093129 (Cedar City Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00093129, 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.