Alma climate

Alma Weather in September

NOAA 1991-2020 normals for Harlan CO Lake, 12.7 km from Alma

Average highs run from 85°F on September 1 to 75°F on September 30, and lows from 59°F to 47°F. Normal precipitation for the month is 1.64 in over about 6 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 Alma, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
81°F
Average low
53°F
Precipitation
1.64 in
Record high
105°FSep 3, 1947
Record low
23°FSep 21, 1918
Chance of a freeze
14%
Days of 90°F or more
6.0
Daylight
13 h 04 min to 11 h 48 min
Cloud cover
45%
Humidity
57%
Dew point
51°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.

DateNormal highNormal lowRecord highRecord lowChance wetChance of snow
Sep 185°F59°F104°F 194843°F 196524%0%
Sep 285°F59°F102°F 193945°F 195223%0%
Sep 385°F58°F105°F 194733°F 197423%0%
Sep 484°F58°F104°F 194541°F 197423%0%
Sep 584°F58°F105°F 193141°F 192123%0%
Sep 684°F57°F104°F 193138°F 195622%0%
Sep 784°F57°F103°F 194740°F 201022%0%
Sep 883°F57°F101°F 190840°F 201022%0%
Sep 983°F56°F104°F 191937°F 202022%0%
Sep 1083°F56°F101°F 193635°F 197022%0%
Sep 1183°F55°F102°F 191132°F 190222%0%
Sep 1282°F55°F103°F 193135°F 190222%0%
Sep 1382°F55°F104°F 191129°F 197422%0%
Sep 1482°F54°F98°F 193632°F 190421%0%
Sep 1581°F54°F99°F 195527°F 190321%0%
Sep 1681°F53°F100°F 195536°F 190321%0%
Sep 1781°F53°F98°F 194729°F 190321%0%
Sep 1880°F52°F101°F 192533°F 191221%0%
Sep 1980°F52°F98°F 190730°F 197121%0%
Sep 2079°F52°F98°F 198031°F 190121%0%
Sep 2179°F51°F96°F 195623°F 191820%0%
Sep 2279°F51°F97°F 190626°F 199520%0%
Sep 2378°F50°F96°F 201726°F 191220%0%
Sep 2478°F50°F96°F 192029°F 196520%0%
Sep 2577°F49°F92°F 192025°F 191220%0%
Sep 2677°F49°F97°F 199829°F 193420%0%
Sep 2777°F48°F93°F 195232°F 196720%0%
Sep 2876°F48°F96°F 195327°F 195119%0%
Sep 2976°F47°F93°F 202328°F 194519%0%
Sep 3075°F47°F97°F 191025°F 192019%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Alma, 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 (CDT).

September 1
sunrise 7:05 AM, sunset 8:09 PM
September 30
sunrise 7:33 AM, sunset 7:21 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00253595 (Harlan CO Lake), public domain. Records: NOAA GHCN-Daily, station USC00253910, 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.