Fort Sumner Weather in August
Average highs run from 91°F on August 1 to 88°F on August 31, and lows from 66°F to 62°F. Normal precipitation for the month is 2.31 in over about 8 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 90°F
- Average low
- 65°F
- Precipitation
- 2.31 in
- Record high
- 106°FAug 1, 1944
- Record low
- 45°FAug 31, 1960
- Chance of a freeze
- 0%
- Days of 90°F or more
- 17.4
- Daylight
- 13 h 51 min to 12 h 54 min
- Cloud cover
- 45%
- Humidity
- 50%
- Dew point
- 55°F
- Wind
- 8.9 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 |
|---|---|---|---|---|---|---|
| Aug 1 | 91°F | 66°F | 106°F 1944 | 57°F 1971 | 29% | 0% |
| Aug 2 | 91°F | 66°F | 106°F 1944 | 55°F 1955 | 29% | 0% |
| Aug 3 | 91°F | 66°F | 106°F 1944 | 56°F 1971 | 29% | 0% |
| Aug 4 | 91°F | 66°F | 103°F 2003 | 57°F 1955 | 29% | 0% |
| Aug 5 | 91°F | 66°F | 103°F 2011 | 54°F 1978 | 29% | 0% |
| Aug 6 | 91°F | 66°F | 102°F 1926 | 53°F 1975 | 29% | 0% |
| Aug 7 | 91°F | 66°F | 102°F 1951 | 54°F 1975 | 29% | 0% |
| Aug 8 | 91°F | 66°F | 104°F 2011 | 52°F 1955 | 29% | 0% |
| Aug 9 | 91°F | 66°F | 105°F 2011 | 56°F 1908 | 28% | 0% |
| Aug 10 | 91°F | 66°F | 102°F 1926 | 52°F 1951 | 28% | 0% |
| Aug 11 | 91°F | 65°F | 102°F 1926 | 53°F 1955 | 28% | 0% |
| Aug 12 | 91°F | 65°F | 101°F 2002 | 53°F 1955 | 28% | 0% |
| Aug 13 | 90°F | 65°F | 100°F 1943 | 52°F 1955 | 28% | 0% |
| Aug 14 | 90°F | 65°F | 100°F 1943 | 55°F 1972 | 28% | 0% |
| Aug 15 | 90°F | 65°F | 102°F 2002 | 53°F 1955 | 27% | 0% |
| Aug 16 | 90°F | 65°F | 102°F 1926 | 50°F 1955 | 27% | 0% |
| Aug 17 | 90°F | 65°F | 103°F 1994 | 51°F 1955 | 27% | 0% |
| Aug 18 | 90°F | 65°F | 105°F 1994 | 53°F 1950 | 27% | 0% |
| Aug 19 | 90°F | 65°F | 103°F 1994 | 52°F 1950 | 27% | 0% |
| Aug 20 | 90°F | 64°F | 105°F 2007 | 50°F 1950 | 26% | 0% |
| Aug 21 | 90°F | 64°F | 102°F 1926 | 51°F 1956 | 26% | 0% |
| Aug 22 | 89°F | 64°F | 99°F 2015 | 54°F 1945 | 26% | 0% |
| Aug 23 | 89°F | 64°F | 100°F 2011 | 50°F 1967 | 25% | 0% |
| Aug 24 | 89°F | 64°F | 99°F 1926 | 52°F 1966 | 25% | 0% |
| Aug 25 | 89°F | 64°F | 101°F 1926 | 52°F 1966 | 25% | 0% |
| Aug 26 | 89°F | 63°F | 102°F 1926 | 49°F 2010 | 25% | 0% |
| Aug 27 | 89°F | 63°F | 102°F 1926 | 52°F 1960 | 25% | 0% |
| Aug 28 | 88°F | 63°F | 103°F 2011 | 50°F 1955 | 24% | 0% |
| Aug 29 | 88°F | 63°F | 99°F 1926 | 48°F 1976 | 24% | 0% |
| Aug 30 | 88°F | 62°F | 103°F 2011 | 51°F 1955 | 24% | 0% |
| Aug 31 | 88°F | 62°F | 103°F 2011 | 45°F 1960 | 24% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- August 1
- sunrise 6:08 AM, sunset 7:59 PM
- August 31
- sunrise 6:30 AM, sunset 7:24 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00293294 (Ft Sumner), public domain. Records: NOAA GHCN-Daily, station USC00295617, 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.