Cortez Weather in May
Average highs run from 68°F on May 1 to 80°F on May 31, and lows from 37°F to 45°F. Normal precipitation for the month is 0.93 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
- 41°F
- Precipitation
- 0.93 in
- Snowfall
- 0.3 in
- Record high
- 97°FMay 31, 2002
- Record low
- 18°FMay 3, 2011
- Chance of a freeze
- 87%
- Days of 90°F or more
- 0.6
- Daylight
- 13 h 45 min to 14 h 33 min
- Cloud cover
- 47%
- Humidity
- 41%
- Dew point
- 29°F
- Wind
- 7.4 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 | 68°F | 37°F | 85°F 2020 | 19°F 2011 | 20% | 3% |
| May 2 | 68°F | 37°F | 81°F 2020 | 19°F 2008 | 20% | 3% |
| May 3 | 68°F | 38°F | 84°F 2000 | 18°F 2011 | 20% | 3% |
| May 4 | 69°F | 38°F | 84°F 2000 | 23°F 2022 | 20% | 3% |
| May 5 | 69°F | 38°F | 84°F 2000 | 25°F 2011 | 20% | 2% |
| May 6 | 69°F | 39°F | 84°F 2021 | 27°F 2003 | 20% | 2% |
| May 7 | 70°F | 39°F | 85°F 2022 | 22°F 2026 | 20% | 2% |
| May 8 | 70°F | 39°F | 86°F 2018 | 28°F 2010 | 20% | 2% |
| May 9 | 71°F | 40°F | 86°F 2018 | 24°F 2002 | 20% | 2% |
| May 10 | 71°F | 40°F | 88°F 2018 | 23°F 2003 | 20% | 2% |
| May 11 | 71°F | 40°F | 85°F 2007 | 22°F 2003 | 19% | 2% |
| May 12 | 72°F | 40°F | 89°F 2026 | 21°F 2010 | 19% | 2% |
| May 13 | 72°F | 41°F | 86°F 2007 | 27°F 2000 | 19% | 2% |
| May 14 | 73°F | 41°F | 87°F 2006 | 23°F 2014 | 19% | 1% |
| May 15 | 73°F | 41°F | 87°F 2022 | 26°F 1998 | 19% | 1% |
| May 16 | 73°F | 41°F | 86°F 2022 | 27°F 1998 | 19% | 1% |
| May 17 | 74°F | 42°F | 87°F 2020 | 25°F 1999 | 18% | 1% |
| May 18 | 74°F | 42°F | 89°F 2009 | 27°F 1999 | 18% | 1% |
| May 19 | 75°F | 42°F | 88°F 2006 | 26°F 2017 | 18% | 1% |
| May 20 | 75°F | 43°F | 90°F 2005 | 27°F 2025 | 18% | 1% |
| May 21 | 75°F | 43°F | 89°F 2012 | 29°F 2020 | 17% | 1% |
| May 22 | 76°F | 43°F | 90°F 2005 | 25°F 2002 | 17% | 1% |
| May 23 | 76°F | 43°F | 92°F 2000 | 24°F 2002 | 17% | 1% |
| May 24 | 77°F | 43°F | 90°F 2000 | 28°F 2021 | 16% | 1% |
| May 25 | 77°F | 44°F | 90°F 2006 | 30°F 2002 | 16% | 1% |
| May 26 | 78°F | 44°F | 88°F 2001 | 31°F 2010 | 16% | 1% |
| May 27 | 78°F | 44°F | 91°F 2003 | 28°F 2012 | 15% | 1% |
| May 28 | 78°F | 44°F | 93°F 2000 | 29°F 2012 | 15% | 1% |
| May 29 | 79°F | 45°F | 95°F 2000 | 28°F 2006 | 15% | 1% |
| May 30 | 79°F | 45°F | 93°F 2002 | 29°F 2022 | 14% | 1% |
| May 31 | 80°F | 45°F | 97°F 2002 | 27°F 2011 | 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 6:19 AM, sunset 8:04 PM
- May 31
- sunrise 5:56 AM, sunset 8:29 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00051886 (Cortez), public domain. Records: NOAA GHCN-Daily, station USW00093069, 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.