Clinton climate

Clinton Weather in September

NOAA 1991-2020 normals for Everett Snohomish AP, 9.6 km from Clinton

Average highs run from 71°F on September 1 to 63°F on September 30, and lows from 54°F to 50°F. Normal precipitation for the month is 1.68 in over about 13 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 Clinton, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
68°F
Average low
52°F
Precipitation
1.68 in
Record high
89°FSep 16, 2025
Record low
37°FSep 24, 1948
Chance of a freeze
0%
Daylight
13 h 22 min to 11 h 42 min
Cloud cover
53%
Humidity
77%
Dew point
51°F
Wind
3.1 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 171°F54°F82°F 202446°F 199930%0%
Sep 271°F54°F85°F 201747°F 199931%0%
Sep 371°F54°F86°F 201749°F 195132%0%
Sep 471°F54°F83°F 200347°F 194833%0%
Sep 571°F54°F88°F 201745°F 201533%0%
Sep 670°F54°F83°F 202448°F 194834%0%
Sep 770°F54°F82°F 201247°F 199935%0%
Sep 870°F54°F81°F 201150°F 199936%0%
Sep 970°F54°F83°F 202049°F 195036%0%
Sep 1070°F53°F85°F 202047°F 199937%0%
Sep 1169°F53°F85°F 201347°F 195038%0%
Sep 1269°F53°F79°F 200946°F 194939%0%
Sep 1369°F53°F79°F 199947°F 194940%0%
Sep 1468°F53°F85°F 195147°F 194940%0%
Sep 1568°F53°F84°F 195147°F 194941%0%
Sep 1668°F52°F89°F 202544°F 202142%0%
Sep 1768°F52°F76°F 201248°F 194843%0%
Sep 1867°F52°F79°F 201246°F 195144%0%
Sep 1967°F52°F79°F 199946°F 194944%0%
Sep 2067°F52°F76°F 202241°F 194945%0%
Sep 2166°F52°F88°F 195044°F 194945%0%
Sep 2266°F51°F88°F 200941°F 194846%0%
Sep 2366°F51°F80°F 201139°F 194846%0%
Sep 2465°F51°F80°F 201137°F 194847%0%
Sep 2565°F51°F75°F 201043°F 194848%0%
Sep 2665°F51°F79°F 202241°F 195148%0%
Sep 2764°F50°F78°F 194942°F 194848%0%
Sep 2864°F50°F84°F 201743°F 195049%0%
Sep 2964°F50°F79°F 201142°F 194849%0%
Sep 3063°F50°F74°F 202038°F 195050%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Clinton, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

September 1
sunrise 6:28 AM, sunset 7:50 PM
September 30
sunrise 7:08 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 USW00024222 (Everett Snohomish AP), public domain. Records: NOAA GHCN-Daily, station USW00024222, 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.