South Greeley Weather in May
Average highs run from 58°F on May 1 to 71°F on May 31, and lows from 34°F to 45°F. Normal precipitation for the month is 2.53 in over about 13 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
- 64°F
- Average low
- 40°F
- Precipitation
- 2.53 in
- Snowfall
- 4.0 in
- Record high
- 92°FMay 29, 2003
- Record low
- 9°FMay 2, 2013
- Chance of a freeze
- 95%
- Daylight
- 13 h 59 min to 14 h 56 min
- Cloud cover
- 63%
- Humidity
- 54%
- Dew point
- 34°F
- Wind
- 9.8 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 | 58°F | 34°F | 78°F 2021 | 15°F 2013 | 41% | 16% |
| May 2 | 59°F | 34°F | 73°F 2014 | 9°F 2013 | 41% | 15% |
| May 3 | 59°F | 35°F | 77°F 2004 | 20°F 2008 | 41% | 15% |
| May 4 | 59°F | 35°F | 80°F 2012 | 23°F 2024 | 42% | 14% |
| May 5 | 60°F | 35°F | 85°F 2004 | 28°F 2011 | 42% | 14% |
| May 6 | 60°F | 36°F | 84°F 2004 | 26°F 2010 | 42% | 13% |
| May 7 | 61°F | 36°F | 82°F 2004 | 23°F 2010 | 42% | 13% |
| May 8 | 61°F | 36°F | 80°F 2004 | 25°F 2010 | 42% | 12% |
| May 9 | 61°F | 37°F | 81°F 2004 | 23°F 2015 | 43% | 12% |
| May 10 | 62°F | 37°F | 78°F 2012 | 24°F 2015 | 43% | 11% |
| May 11 | 62°F | 38°F | 81°F 2007 | 24°F 2015 | 43% | 11% |
| May 12 | 63°F | 38°F | 79°F 2007 | 24°F 2005 | 43% | 10% |
| May 13 | 63°F | 38°F | 81°F 2007 | 24°F 2014 | 43% | 10% |
| May 14 | 63°F | 39°F | 83°F 2013 | 29°F 2014 | 43% | 9% |
| May 15 | 64°F | 39°F | 77°F 2019 | 31°F 2011 | 43% | 9% |
| May 16 | 64°F | 40°F | 80°F 2022 | 32°F 2016 | 43% | 8% |
| May 17 | 65°F | 40°F | 80°F 2003 | 32°F 2016 | 43% | 8% |
| May 18 | 65°F | 40°F | 83°F 2009 | 28°F 2017 | 43% | 7% |
| May 19 | 66°F | 41°F | 85°F 2009 | 28°F 2017 | 43% | 7% |
| May 20 | 66°F | 41°F | 86°F 2005 | 28°F 2015 | 43% | 6% |
| May 21 | 66°F | 42°F | 82°F 2005 | 23°F 2022 | 42% | 6% |
| May 22 | 67°F | 42°F | 85°F 2012 | 26°F 2022 | 42% | 5% |
| May 23 | 67°F | 42°F | 79°F 2005 | 33°F 2019 | 42% | 5% |
| May 24 | 68°F | 43°F | 78°F 2006 | 30°F 2007 | 42% | 4% |
| May 25 | 68°F | 43°F | 81°F 2018 | 32°F 2004 | 42% | 4% |
| May 26 | 69°F | 43°F | 84°F 2018 | 34°F 2017 | 42% | 4% |
| May 27 | 69°F | 44°F | 84°F 2022 | 36°F 2008 | 41% | 3% |
| May 28 | 69°F | 44°F | 84°F 2010 | 35°F 2005 | 41% | 3% |
| May 29 | 70°F | 44°F | 92°F 2003 | 33°F 2012 | 41% | 3% |
| May 30 | 70°F | 45°F | 83°F 2003 | 35°F 2004 | 41% | 2% |
| May 31 | 71°F | 45°F | 85°F 2020 | 36°F 2005 | 41% | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- May 1
- sunrise 5:57 AM, sunset 7:56 PM
- May 31
- sunrise 5:29 AM, sunset 8:25 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00481676 (Cheyenne WFO), public domain. Records: NOAA GHCN-Daily, station USC00481676, 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.