Sidney climate

Sidney Weather in September

NOAA 1991-2020 normals for Sidney Muni AP, 4.7 km from Sidney

Average highs run from 85°F on September 1 to 72°F on September 30, and lows from 51°F to 40°F. Normal precipitation for the month is 1.31 in over about 7 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 Sidney, in °F, with the record for each date.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
79°F
Average low
46°F
Precipitation
1.31 in
Snowfall
0.1 in
Record high
102°FSep 6, 2022
Record low
13°FSep 30, 1985
Chance of a freeze
53%
Days of 90°F or more
5.9
Daylight
13 h 05 min to 11 h 47 min
Cloud cover
45%
Humidity
50%
Dew point
42°F
Wind
9.6 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°F51°F98°F 197534°F 196526%0%
Sep 284°F51°F99°F 198332°F 200625%0%
Sep 384°F50°F100°F 201733°F 197425%0%
Sep 484°F50°F100°F 199833°F 197425%0%
Sep 583°F50°F100°F 201033°F 196125%0%
Sep 683°F49°F102°F 202234°F 201725%0%
Sep 783°F49°F102°F 202235°F 201025%0%
Sep 883°F49°F102°F 202232°F 202025%0%
Sep 982°F48°F98°F 202428°F 196225%0%
Sep 1082°F48°F102°F 202128°F 202024%0%
Sep 1181°F48°F100°F 202133°F 201424%0%
Sep 1281°F47°F96°F 200432°F 194924%0%
Sep 1381°F47°F95°F 201726°F 194924%0%
Sep 1480°F46°F96°F 201534°F 197424%0%
Sep 1580°F46°F96°F 201832°F 196124%0%
Sep 1679°F46°F97°F 201829°F 196523%0%
Sep 1779°F45°F99°F 200028°F 196523%0%
Sep 1878°F45°F93°F 194830°F 194923%0%
Sep 1978°F44°F94°F 202228°F 197123%0%
Sep 2078°F44°F98°F 201024°F 198323%0%
Sep 2177°F44°F94°F 200515°F 198322%0%
Sep 2276°F43°F93°F 195326°F 200222%0%
Sep 2376°F43°F94°F 200728°F 198522%0%
Sep 2475°F42°F91°F 202027°F 196522%0%
Sep 2575°F42°F91°F 199824°F 198421%0%
Sep 2674°F41°F96°F 202423°F 197221%0%
Sep 2774°F41°F94°F 195321°F 196421%0%
Sep 2873°F41°F92°F 196922°F 198521%1%
Sep 2973°F40°F92°F 202416°F 198421%1%
Sep 3072°F40°F88°F 196713°F 198521%1%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sidney, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (MDT).

September 1
sunrise 6:19 AM, sunset 7:24 PM
September 30
sunrise 6:48 AM, sunset 6:35 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00024030 (Sidney Muni AP), public domain. Records: NOAA GHCN-Daily, station USW00024030, 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.