Aloha climate

Aloha Weather in September

NOAA 1991-2020 normals for Nature Park-Beaverton, 2.2 km from Aloha

Average highs run from 80°F on September 1 to 71°F on September 30, and lows from 55°F to 50°F. Normal precipitation for the month is 1.41 in over about 9 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 Aloha, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
76°F
Average low
53°F
Precipitation
1.41 in
Record high
100°FSep 2, 2017
Record low
30°FSep 27, 1999
Chance of a freeze
0%
Days of 90°F or more
1.9
Daylight
13 h 16 min to 11 h 44 min
Cloud cover
49%
Humidity
76%
Dew point
51°F
Wind
4.5 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°F55°F96°F 201738°F 199921%0%
Sep 280°F55°F100°F 201740°F 201222%0%
Sep 380°F55°F98°F 202042°F 199922%0%
Sep 480°F55°F95°F 200339°F 201523%0%
Sep 579°F55°F100°F 202440°F 200024%0%
Sep 679°F54°F95°F 201438°F 200124%0%
Sep 779°F54°F96°F 201137°F 199925%0%
Sep 879°F54°F90°F 201138°F 200226%0%
Sep 978°F54°F93°F 201139°F 200026%0%
Sep 1078°F54°F95°F 201138°F 199927%0%
Sep 1178°F54°F97°F 201337°F 201228%0%
Sep 1277°F53°F90°F 201542°F 201229%0%
Sep 1377°F53°F92°F 199941°F 200830%0%
Sep 1477°F53°F92°F 202342°F 201430%0%
Sep 1576°F53°F94°F 202340°F 201531%0%
Sep 1676°F52°F90°F 200837°F 202132%0%
Sep 1776°F52°F91°F 201241°F 201833%0%
Sep 1875°F52°F91°F 199936°F 200734%0%
Sep 1975°F52°F92°F 199939°F 200734%0%
Sep 2075°F52°F93°F 201436°F 200135%0%
Sep 2174°F51°F88°F 199939°F 200236%0%
Sep 2274°F51°F92°F 200935°F 200536%0%
Sep 2373°F51°F88°F 200235°F 200037%0%
Sep 2473°F51°F91°F 202432°F 200038%0%
Sep 2573°F51°F90°F 202235°F 200039%0%
Sep 2672°F50°F90°F 201635°F 200039%0%
Sep 2772°F50°F95°F 200330°F 199940%0%
Sep 2872°F50°F86°F 200633°F 199941%0%
Sep 2971°F50°F89°F 200835°F 200742%0%
Sep 3071°F50°F85°F 201034°F 201943%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Aloha, 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 6:33 AM, sunset 7:49 PM
September 30
sunrise 7:09 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 USC00355945 (Nature Park-Beaverton), public domain. Records: NOAA GHCN-Daily, station USW00094261, 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.