Stanford climate

Stanford Weather in September

NOAA 1991-2020 normals for Bloomington 5W, 12.5 km from Stanford

Average highs run from 81°F on September 1 to 70°F on September 30, and lows from 59°F to 48°F. Normal precipitation for the month is 3.15 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 Stanford, 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
54°F
Precipitation
3.15 in
Record high
101°FSep 2, 2011
Record low
31°FSep 30, 1984
Chance of a freeze
3%
Days of 90°F or more
3.4
Daylight
13 h 05 min to 11 h 49 min
Cloud cover
47%
Humidity
71%
Dew point
55°F
Wind
8.7 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 181°F59°F97°F 201342°F 200928%0%
Sep 281°F59°F101°F 201142°F 200928%0%
Sep 381°F59°F100°F 201142°F 201728%0%
Sep 480°F58°F98°F 202645°F 202428%0%
Sep 580°F58°F99°F 202645°F 198828%0%
Sep 680°F58°F95°F 199040°F 198828%0%
Sep 780°F57°F97°F 201542°F 198828%0%
Sep 879°F57°F95°F 201539°F 198628%0%
Sep 979°F57°F96°F 198339°F 202428%0%
Sep 1079°F56°F98°F 201341°F 199328%0%
Sep 1178°F56°F99°F 201340°F 199328%0%
Sep 1278°F56°F97°F 201341°F 200728%0%
Sep 1378°F55°F94°F 199138°F 201428%0%
Sep 1477°F55°F97°F 202539°F 201328%0%
Sep 1577°F55°F91°F 202535°F 200728%0%
Sep 1677°F54°F99°F 202635°F 200728%0%
Sep 1776°F54°F92°F 201835°F 200728%0%
Sep 1876°F53°F93°F 201833°F 199128%0%
Sep 1975°F53°F93°F 201832°F 199128%0%
Sep 2075°F53°F94°F 201332°F 199128%0%
Sep 2174°F52°F96°F 202232°F 199128%0%
Sep 2274°F52°F93°F 198834°F 199528%0%
Sep 2374°F51°F95°F 201732°F 199528%0%
Sep 2473°F51°F93°F 201734°F 199528%0%
Sep 2573°F50°F93°F 200736°F 199529%0%
Sep 2672°F50°F92°F 201735°F 198429%0%
Sep 2772°F50°F90°F 201732°F 199129%0%
Sep 2871°F49°F89°F 202135°F 202229%0%
Sep 2971°F49°F90°F 202533°F 198429%0%
Sep 3070°F48°F91°F 202131°F 198429%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Stanford, 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 6:24 AM, sunset 7:29 PM
September 30
sunrise 6:52 AM, sunset 6:41 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00110764 (Bloomington 5W), public domain. Records: NOAA GHCN-Daily, station USC00116200, 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.