Clayton climate

Clayton Weather in September

NOAA 1991-2020 normals for Clayton 1 N, 1.6 km from Clayton

Average highs run from 85°F on September 1 to 77°F on September 30, and lows from 55°F to 45°F. Normal precipitation for the month is 1.92 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 Clayton, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
81°F
Average low
50°F
Precipitation
1.92 in
Record high
99°FSep 3, 1947
Record low
26°FSep 29, 1985
Chance of a freeze
11%
Days of 90°F or more
5.7
Daylight
12 h 57 min to 11 h 50 min
Cloud cover
39%
Humidity
50%
Dew point
46°F
Wind
11.2 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°F55°F97°F 192247°F 191517%0%
Sep 285°F54°F97°F 194743°F 193417%0%
Sep 385°F54°F99°F 194737°F 196117%0%
Sep 484°F54°F97°F 198333°F 196117%0%
Sep 584°F54°F99°F 194841°F 196117%0%
Sep 684°F53°F99°F 202041°F 189817%0%
Sep 784°F53°F98°F 202340°F 191817%0%
Sep 883°F53°F94°F 191433°F 202017%0%
Sep 983°F52°F96°F 202132°F 202017%0%
Sep 1083°F52°F98°F 202134°F 189817%0%
Sep 1183°F52°F99°F 202135°F 202017%0%
Sep 1283°F51°F95°F 202136°F 198917%0%
Sep 1382°F51°F95°F 201037°F 198917%0%
Sep 1482°F51°F97°F 195636°F 198917%0%
Sep 1582°F50°F96°F 189836°F 194717%0%
Sep 1681°F50°F94°F 200034°F 195117%0%
Sep 1781°F50°F95°F 200032°F 197117%0%
Sep 1881°F49°F94°F 199732°F 197117%0%
Sep 1981°F49°F94°F 198333°F 197117%0%
Sep 2080°F49°F92°F 195632°F 191817%
Sep 2180°F48°F92°F 192629°F 198317%
Sep 2280°F48°F94°F 189834°F 197017%
Sep 2379°F48°F94°F 189834°F 197017%
Sep 2479°F47°F92°F 199835°F 192617%
Sep 2579°F47°F94°F 202031°F 192617%
Sep 2678°F46°F94°F 202029°F 192617%
Sep 2778°F46°F94°F 200928°F 192717%
Sep 2878°F46°F91°F 189828°F 194517%
Sep 2977°F45°F94°F 201026°F 198517%
Sep 3077°F45°F91°F 192828°F 198417%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Clayton, 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 6:24 AM, sunset 7:21 PM
September 30
sunrise 6:47 AM, sunset 6:37 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00291883 (Clayton 1 N), public domain. Records: NOAA GHCN-Daily, station USW00023051, 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.