Mountainair climate

Mountainair Weather in September

NOAA 1991-2020 normals for Mountainair, 1.8 km from Mountainair

Average highs run from 83°F on September 1 to 75°F on September 30, and lows from 55°F to 47°F. Normal precipitation for the month is 1.72 in over about 5 wet days.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Mountainair, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
79°F
Average low
51°F
Precipitation
1.72 in
Record high
94°FSep 8, 2020
Record low
25°FSep 19, 2006
Chance of a freeze
5%
Days of 90°F or more
1.5
Daylight
12 h 53 min to 11 h 51 min
Cloud cover
38%
Humidity
49%
Dew point
43°F
Wind
8.1 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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 183°F55°F92°F 201141°F 200420%0%
Sep 283°F55°F91°F 201241°F 200420%0%
Sep 383°F55°F91°F 201939°F 202420%0%
Sep 483°F55°F92°F 201940°F 201019%0%
Sep 582°F54°F91°F 200040°F 200819%0%
Sep 682°F54°F91°F 202040°F 200819%0%
Sep 782°F54°F93°F 202039°F 200418%0%
Sep 882°F54°F94°F 202040°F 202218%0%
Sep 981°F53°F90°F 202232°F 202018%0%
Sep 1081°F53°F90°F 202132°F 202018%0%
Sep 1181°F53°F91°F 202135°F 202017%0%
Sep 1280°F52°F91°F 202138°F 202017%0%
Sep 1380°F52°F91°F 202637°F 202017%0%
Sep 1480°F52°F91°F 202636°F 200517%0%
Sep 1580°F52°F89°F 200735°F 200516%0%
Sep 1679°F51°F88°F 200734°F 200516%0%
Sep 1779°F51°F90°F 200034°F 200516%0%
Sep 1879°F51°F89°F 200730°F 200615%0%
Sep 1978°F50°F89°F 201825°F 200615%0%
Sep 2078°F50°F87°F 201625°F 200615%0%
Sep 2178°F50°F89°F 200537°F 201615%0%
Sep 2277°F49°F87°F 200532°F 200914%0%
Sep 2377°F49°F87°F 200530°F 200914%0%
Sep 2477°F49°F85°F 199829°F 200914%0%
Sep 2576°F48°F87°F 199826°F 200014%0%
Sep 2676°F48°F87°F 199826°F 200014%0%
Sep 2776°F48°F86°F 200330°F 200013%0%
Sep 2875°F47°F90°F 202433°F 202213%0%
Sep 2975°F47°F88°F 199828°F 202013%0%
Sep 3075°F47°F88°F 201027°F 202013%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mountainair, in percent, and of at least 0.1 inch of snowfall.05101520251102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

September 1
sunrise 6:38 AM, sunset 7:31 PM
September 30
sunrise 6:59 AM, sunset 6:50 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00295965 (Mountainair), public domain. Records: NOAA GHCN-Daily, station USC00295908, 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.