Calvert climate

Calvert Weather in September

NOAA 1991-2020 normals for Franklin, 18.7 km from Calvert

Average highs run from 94°F on September 1 to 87°F on September 30, and lows from 72°F to 63°F. Normal precipitation for the month is 3.03 in over about 6 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 Calvert, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
91°F
Average low
68°F
Precipitation
3.03 in
Record high
112°FSep 4, 2000
Record low
43°FSep 23, 1994
Chance of a freeze
0%
Days of 90°F or more
15.5
Daylight
12 h 47 min to 11 h 53 min
Cloud cover
43%
Humidity
67%
Dew point
65°F
Wind
7.4 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 194°F72°F109°F 198561°F 200419%0%
Sep 294°F71°F106°F 200064°F 198719%0%
Sep 394°F71°F109°F 200057°F 197419%0%
Sep 493°F71°F112°F 200055°F 197419%0%
Sep 593°F71°F108°F 200051°F 197419%0%
Sep 693°F70°F102°F 197151°F 197419%0%
Sep 793°F70°F101°F 198553°F 200319%0%
Sep 893°F70°F101°F 198558°F 198819%0%
Sep 992°F70°F101°F 199757°F 198819%0%
Sep 1092°F69°F99°F 196359°F 198819%0%
Sep 1192°F69°F102°F 200055°F 197619%0%
Sep 1292°F69°F101°F 198257°F 196919%0%
Sep 1391°F68°F99°F 197254°F 196419%0%
Sep 1491°F68°F100°F 198451°F 198919%0%
Sep 1591°F68°F99°F 196550°F 198919%0%
Sep 1691°F68°F98°F 199752°F 198919%0%
Sep 1790°F67°F98°F 197252°F 198119%0%
Sep 1890°F67°F99°F 198247°F 198119%0%
Sep 1990°F67°F98°F 197245°F 198119%0%
Sep 2090°F66°F101°F 199947°F 198119%0%
Sep 2189°F66°F97°F 199950°F 198318%0%
Sep 2289°F66°F97°F 200044°F 198318%0%
Sep 2389°F65°F98°F 200043°F 199418%0%
Sep 2489°F65°F97°F 197745°F 197518%0%
Sep 2588°F65°F95°F 197745°F 198918%0%
Sep 2688°F64°F96°F 197746°F 200018%0%
Sep 2788°F64°F98°F 197748°F 200018%0%
Sep 2887°F64°F96°F 197747°F 199618%0%
Sep 2987°F63°F96°F 197747°F 197418%0%
Sep 3087°F63°F96°F 197744°F 198418%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Calvert, in percent, and of at least 0.1 inch of snowfall.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

September 1
sunrise 7:03 AM, sunset 7:50 PM
September 30
sunrise 7:20 AM, sunset 7:13 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00413321 (Franklin), public domain. Records: NOAA GHCN-Daily, station USC00413321, 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.