Reliance climate

Reliance Weather in September

NOAA 1991-2020 normals for Rock Springs Fire Dept, 10.7 km from Reliance

Average highs run from 80°F on September 1 to 69°F on September 30, and lows from 46°F to 37°F. Normal precipitation for the month is 1.17 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 Reliance, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
75°F
Average low
41°F
Precipitation
1.17 in
Record high
93°FSep 4, 2022
Record low
5°FSep 18, 1965
Chance of a freeze
78%
Daylight
13 h 07 min to 11 h 47 min
Cloud cover
42%
Humidity
42%
Dew point
31°F
Wind
10.3 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 180°F46°F90°F 202232°F 197317%0%
Sep 280°F46°F90°F 201932°F 197317%0%
Sep 380°F45°F91°F 202230°F 196117%0%
Sep 479°F45°F93°F 202233°F 196817%0%
Sep 579°F45°F92°F 202236°F 195617%0%
Sep 679°F44°F91°F 202035°F 201017%0%
Sep 778°F44°F93°F 202229°F 202018%0%
Sep 878°F44°F88°F 202224°F 202018%0%
Sep 978°F43°F88°F 202122°F 196218%0%
Sep 1077°F43°F87°F 202130°F 202018%0%
Sep 1177°F43°F85°F 197127°F 198918%0%
Sep 1277°F42°F88°F 199021°F 201418%
Sep 1376°F42°F86°F 199026°F 197018%
Sep 1476°F42°F87°F 194826°F 197018%
Sep 1575°F41°F86°F 199024°F 197018%
Sep 1675°F41°F84°F 200018°F 196519%
Sep 1775°F41°F83°F 201010°F 196519%
Sep 1874°F40°F84°F 20145°F 196519%
Sep 1974°F40°F86°F 201021°F 196519%
Sep 2073°F40°F81°F 195619°F 196519%
Sep 2173°F40°F82°F 196722°F 199519%
Sep 2273°F39°F84°F 196621°F 200019%
Sep 2372°F39°F83°F 196619°F 200019%
Sep 2472°F39°F82°F 200121°F 200019%
Sep 2571°F38°F83°F 200118°F 200019%
Sep 2671°F38°F83°F 201524°F 199619%
Sep 2770°F38°F82°F 196918°F 199618%
Sep 2870°F37°F85°F 202420°F 198518%
Sep 2969°F37°F85°F 202418°F 198518%
Sep 3069°F37°F80°F 198015°F 198518%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Reliance, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

September 1
sunrise 6:43 AM, sunset 7:50 PM
September 30
sunrise 7:13 AM, sunset 7:00 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00487847 (Rock Springs Fire Dept), public domain. Records: NOAA GHCN-Daily, station USW00024027, 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.