Ridgefield climate

Ridgefield Weather in September

NOAA 1991-2020 normals for Scappoose Ind AP, 10.3 km from Ridgefield

Average highs run from 80°F on September 1 to 71°F on September 30, and lows from 52°F to 47°F. Normal precipitation for the month is 1.56 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 Ridgefield, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
76°F
Average low
50°F
Precipitation
1.56 in
Record high
99°FSep 2, 2017
Record low
33°FSep 23, 2000
Chance of a freeze
1%
Days of 90°F or more
2.2
Daylight
13 h 17 min to 11 h 45 min
Cloud cover
51%
Humidity
70%
Dew point
47°F
Wind
3.8 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°F52°F94°F 199841°F 199921%0%
Sep 280°F52°F99°F 201745°F 201221%0%
Sep 380°F52°F96°F 201744°F 201522%0%
Sep 480°F52°F93°F 200342°F 200222%0%
Sep 580°F52°F93°F 200343°F 200223%0%
Sep 679°F52°F97°F 201443°F 201023%0%
Sep 779°F52°F95°F 201142°F 199923%0%
Sep 879°F51°F90°F 199939°F 200224%0%
Sep 979°F51°F92°F 202044°F 199824%0%
Sep 1078°F51°F93°F 200742°F 199925%0%
Sep 1178°F51°F98°F 201340°F 201226%0%
Sep 1278°F51°F89°F 201544°F 201026%0%
Sep 1378°F50°F90°F 201242°F 201627%0%
Sep 1477°F50°F94°F 202343°F 201527%0%
Sep 1577°F50°F97°F 202341°F 201528%0%
Sep 1677°F50°F91°F 202539°F 200629%0%
Sep 1776°F50°F91°F 201240°F 200529%0%
Sep 1876°F49°F90°F 199939°F 200730%0%
Sep 1976°F49°F93°F 199941°F 200531%0%
Sep 2075°F49°F95°F 201441°F 200331%0%
Sep 2175°F49°F88°F 201442°F 200432%0%
Sep 2274°F49°F92°F 200938°F 200032%0%
Sep 2374°F48°F88°F 200233°F 200033%0%
Sep 2474°F48°F90°F 202135°F 200533%0%
Sep 2573°F48°F89°F 202238°F 200534%0%
Sep 2673°F48°F89°F 201639°F 201335%0%
Sep 2772°F47°F96°F 200333°F 199935%0%
Sep 2872°F47°F88°F 201739°F 200936%0%
Sep 2971°F47°F92°F 200838°F 201936%0%
Sep 3071°F47°F83°F 202035°F 201937%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Ridgefield, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

September 1
sunrise 6:32 AM, sunset 7:49 PM
September 30
sunrise 7:08 AM, sunset 6:53 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00004201 (Scappoose Ind AP), public domain. Records: NOAA GHCN-Daily, station USW00004201, 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.