Black Rock Weather in May
Average highs run from 72°F on May 1 to 83°F on May 31, and lows from 33°F to 40°F. Normal precipitation for the month is 0.68 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
- 77°F
- Average low
- 37°F
- Precipitation
- 0.68 in
- Snowfall
- 0.1 in
- Record high
- 98°FMay 31, 2002
- Record low
- 3°FMay 2, 2011
- Chance of a freeze
- 97%
- Days of 90°F or more
- 1.3
- Daylight
- 13 h 37 min to 14 h 22 min
- Cloud cover
- 39%
- Humidity
- 34%
- Dew point
- 26°F
- Wind
- 11.0 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 | 72°F | 33°F | 84°F 2000 | 6°F 2011 | 9% | 1% |
| May 2 | 72°F | 33°F | 83°F 2000 | 3°F 2011 | 9% | 1% |
| May 3 | 72°F | 33°F | 85°F 2000 | 10°F 2011 | 9% | 1% |
| May 4 | 73°F | 34°F | 85°F 2000 | 15°F 2011 | 9% | 1% |
| May 5 | 73°F | 34°F | 85°F 2000 | 18°F 2011 | 9% | 1% |
| May 6 | 73°F | 34°F | 87°F 2004 | 9°F 1975 | 9% | 1% |
| May 7 | 74°F | 34°F | 88°F 1989 | 17°F 1975 | 8% | 1% |
| May 8 | 74°F | 35°F | 87°F 1989 | 22°F 1982 | 8% | 1% |
| May 9 | 74°F | 35°F | 89°F 2018 | 22°F 1986 | 8% | 0% |
| May 10 | 75°F | 35°F | 88°F 2018 | 17°F 2011 | 8% | 0% |
| May 11 | 75°F | 35°F | 90°F 1996 | 23°F 2003 | 8% | 0% |
| May 12 | 75°F | 36°F | 93°F 1996 | 11°F 2010 | 8% | 0% |
| May 13 | 76°F | 36°F | 91°F 1996 | 16°F 2011 | 8% | 0% |
| May 14 | 76°F | 36°F | 91°F 2006 | 21°F 2014 | 8% | 0% |
| May 15 | 76°F | 36°F | 90°F 2006 | 21°F 2014 | 8% | 0% |
| May 16 | 77°F | 37°F | 89°F 2022 | 21°F 2014 | 8% | 0% |
| May 17 | 77°F | 37°F | 88°F 2003 | 20°F 1983 | 8% | 0% |
| May 18 | 78°F | 37°F | 88°F 1956 | 23°F 1983 | 8% | 0% |
| May 19 | 78°F | 37°F | 90°F 1996 | 22°F 2011 | 8% | 0% |
| May 20 | 79°F | 38°F | 93°F 2005 | 20°F 1982 | 8% | 0% |
| May 21 | 79°F | 38°F | 92°F 2005 | 20°F 2011 | 8% | 0% |
| May 22 | 79°F | 38°F | 92°F 2005 | 22°F 2011 | 8% | 0% |
| May 23 | 80°F | 38°F | 93°F 2000 | 27°F 2021 | 7% | 0% |
| May 24 | 80°F | 38°F | 93°F 2000 | 25°F 2010 | 7% | 0% |
| May 25 | 81°F | 39°F | 92°F 2000 | 18°F 2011 | 7% | 0% |
| May 26 | 81°F | 39°F | 91°F 1951 | 19°F 2010 | 7% | 0% |
| May 27 | 81°F | 39°F | 92°F 1951 | 24°F 2011 | 7% | 0% |
| May 28 | 82°F | 39°F | 91°F 2014 | 26°F 2019 | 7% | 0% |
| May 29 | 82°F | 40°F | 96°F 2000 | 28°F 1953 | 7% | 0% |
| May 30 | 83°F | 40°F | 96°F 2002 | 28°F 2010 | 6% | 0% |
| May 31 | 83°F | 40°F | 98°F 2002 | 21°F 2011 | 6% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- May 1
- sunrise 6:24 AM, sunset 8:01 PM
- May 31
- sunrise 6:02 AM, sunset 8:24 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00093044 (Zuni), public domain. Records: NOAA GHCN-Daily, station USW00093044, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.