Pacific climate

Pacific Weather in September

NOAA 1991-2020 normals for Washington, 21.4 km from Pacific

Average highs run from 84°F on September 1 to 75°F on September 30, and lows from 61°F to 50°F. Normal precipitation for the month is 3.71 in over about 8 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 Pacific, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
80°F
Average low
56°F
Precipitation
3.71 in
Record high
102°FSep 5, 2026
Record low
32°FSep 23, 1995
Chance of a freeze
1%
Days of 90°F or more
4.9
Daylight
13 h 01 min to 11 h 49 min
Cloud cover
46%
Humidity
68%
Dew point
56°F
Wind
5.1 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 184°F61°F101°F 201148°F 200925%0%
Sep 283°F61°F99°F 201147°F 201725%0%
Sep 383°F60°F99°F 201151°F 200925%0%
Sep 483°F60°F100°F 202650°F 202425%0%
Sep 583°F60°F102°F 202648°F 198825%0%
Sep 682°F59°F100°F 199043°F 198825%0%
Sep 782°F59°F96°F 200243°F 198825%0%
Sep 882°F59°F93°F 200240°F 202425%0%
Sep 981°F58°F98°F 201341°F 202425%0%
Sep 1081°F58°F98°F 201343°F 202425%0%
Sep 1181°F58°F97°F 200045°F 201725%0%
Sep 1281°F57°F96°F 199146°F 199225%0%
Sep 1380°F57°F97°F 202543°F 201425%0%
Sep 1480°F57°F98°F 202542°F 201425%0%
Sep 1580°F56°F97°F 202640°F 200725%0%
Sep 1679°F56°F94°F 201943°F 200025%0%
Sep 1779°F56°F97°F 202641°F 199925%0%
Sep 1879°F55°F95°F 202545°F 199925%0%
Sep 1979°F55°F94°F 200040°F 199125%0%
Sep 2078°F54°F96°F 201739°F 199125%0%
Sep 2178°F54°F95°F 202236°F 199125%0%
Sep 2278°F54°F94°F 200536°F 199525%0%
Sep 2377°F53°F92°F 200732°F 199525%0%
Sep 2477°F53°F92°F 201732°F 198925%0%
Sep 2577°F53°F92°F 201734°F 198926%0%
Sep 2677°F52°F91°F 201737°F 200126%0%
Sep 2776°F52°F92°F 201940°F 198926%0%
Sep 2876°F51°F90°F 202137°F 198926%0%
Sep 2976°F51°F91°F 201936°F 199226%0%
Sep 3075°F50°F92°F 201935°F 199926%0%

Chance of rain

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

September 1
sunrise 6:32 AM, sunset 7:33 PM
September 30
sunrise 6:58 AM, sunset 6:47 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00238746 (Washington), public domain. Records: NOAA GHCN-Daily, station USW00003966, 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.