Caldwell climate

Caldwell Weather in September

NOAA 1991-2020 normals for Caldwell 3SE, 5.7 km from Caldwell

Average highs run from 81°F on September 1 to 72°F on September 30, and lows from 56°F to 47°F.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Caldwell, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
77°F
Average low
52°F
Record high
96°FSep 2, 1973
Record low
32°FSep 24, 1974
Chance of a freeze
11%
Days of 90°F or more
1.3
Daylight
13 h 03 min to 11 h 49 min
Cloud cover
52%
Humidity
67%
Dew point
54°F
Wind
3.6 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°F56°F95°F 197339°F 19670%
Sep 281°F56°F96°F 197339°F 19670%
Sep 381°F55°F96°F 201142°F 19670%
Sep 480°F55°F93°F 197342°F 19970%
Sep 580°F55°F92°F 200742°F 20100%
Sep 680°F55°F95°F 199840°F 19840%
Sep 780°F54°F94°F 200242°F 19760%
Sep 879°F54°F95°F 200239°F 19860%
Sep 979°F54°F95°F 196439°F 19860%
Sep 1079°F53°F96°F 198340°F 19720%
Sep 1178°F53°F94°F 198337°F 19690%
Sep 1278°F53°F92°F 201938°F 19670%
Sep 1378°F53°F92°F 201939°F 19640%
Sep 1477°F52°F92°F 201933°F 19640%
Sep 1577°F52°F92°F 199135°F 19750%
Sep 1677°F52°F93°F 199133°F 19660%
Sep 1776°F51°F90°F 199136°F 19660%
Sep 1876°F51°F90°F 196539°F 19840%
Sep 1976°F51°F90°F 196538°F 20200%
Sep 2075°F51°F91°F 197835°F 20000%
Sep 2175°F50°F90°F 197033°F 19910%
Sep 2275°F50°F91°F 197036°F 19910%
Sep 2374°F50°F92°F 197033°F 19740%
Sep 2474°F49°F91°F 197032°F 19740%
Sep 2574°F49°F91°F 200732°F 19830%
Sep 2673°F49°F89°F 201736°F 19650%
Sep 2773°F48°F91°F 201732°F 19910%
Sep 2872°F48°F86°F 197133°F 19890%
Sep 2972°F48°F88°F 197135°F 19690%
Sep 3072°F47°F87°F 198635°F 19920%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Caldwell, in percent, and of at least 0.1 inch of snowfall.00.21102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 6:54 AM, sunset 7:57 PM
September 30
sunrise 7:21 AM, sunset 7:10 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00331175 (Caldwell 3SE), public domain. Records: NOAA GHCN-Daily, station USC00331197, 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.