Osino climate

Osino Weather in September

NOAA 1991-2020 normals for Ryndon, 5.9 km from Osino

Average highs run from 86°F on September 1 to 74°F on September 30, and lows from 43°F to 33°F. Normal precipitation for the month is 0.49 in over about 3 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 Osino, in °F, with the record for each date.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
80°F
Average low
38°F
Precipitation
0.49 in
Record high
102°FSep 6, 2022
Record low
9°FSep 24, 1891
Chance of a freeze
95%
Days of 90°F or more
2.9
Daylight
13 h 05 min to 11 h 48 min
Cloud cover
36%
Humidity
37%
Dew point
31°F
Wind
6.9 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 186°F43°F98°F 202229°F 19109%0%
Sep 286°F42°F100°F 202226°F 19649%0%
Sep 385°F42°F101°F 202226°F 19649%0%
Sep 485°F42°F100°F 201724°F 19999%0%
Sep 584°F41°F101°F 202024°F 18899%0%
Sep 684°F41°F102°F 202223°F 199610%0%
Sep 784°F41°F101°F 202226°F 188910%0%
Sep 883°F40°F97°F 202125°F 193910%0%
Sep 983°F40°F97°F 202124°F 191410%0%
Sep 1083°F40°F95°F 199022°F 191610%
Sep 1182°F40°F94°F 199020°F 191011%
Sep 1282°F39°F93°F 195321°F 188911%
Sep 1381°F39°F95°F 194822°F 191611%
Sep 1481°F39°F93°F 200021°F 191111%
Sep 1581°F38°F92°F 194320°F 193611%
Sep 1680°F38°F96°F 192419°F 191211%
Sep 1780°F38°F94°F 192913°F 188911%
Sep 1879°F37°F94°F 197912°F 196512%
Sep 1979°F37°F92°F 193915°F 196512%
Sep 2079°F37°F91°F 192216°F 192412%
Sep 2178°F36°F91°F 196717°F 192412%
Sep 2278°F36°F92°F 196610°F 189512%
Sep 2377°F35°F90°F 194910°F 189112%
Sep 2477°F35°F90°F 20159°F 189112%
Sep 2577°F35°F92°F 201512°F 189112%
Sep 2676°F34°F90°F 18949°F 193412%
Sep 2776°F34°F91°F 201013°F 188912%
Sep 2875°F34°F94°F 202414°F 189112%
Sep 2975°F33°F90°F 201016°F 190212%
Sep 3074°F33°F91°F 201017°F 188912%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Osino, in percent, and of at least 0.1 inch of snowfall.02.557.51012.51102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

September 1
sunrise 6:10 AM, sunset 7:15 PM
September 30
sunrise 6:38 AM, sunset 6:26 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00267188 (Ryndon), public domain. Records: NOAA GHCN-Daily, station USW00024121, 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.