Smiths Grove climate

Smiths Grove Weather in September

NOAA 1991-2020 normals for Mammoth Cave, 10.2 km from Smiths Grove

Average highs run from 89°F on September 1 to 80°F on September 30, and lows from 64°F to 55°F. Normal precipitation for the month is 3.95 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 Smiths Grove, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
85°F
Average low
60°F
Precipitation
3.95 in
Record high
105°FSep 7, 1925
Record low
33°FSep 24, 1983
Chance of a freeze
0%
Days of 90°F or more
7.2
Daylight
12 h 57 min to 11 h 50 min
Cloud cover
48%
Humidity
69%
Dew point
58°F
Wind
5.8 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 189°F64°F104°F 194346°F 194628%0%
Sep 289°F64°F101°F 191345°F 198727%0%
Sep 388°F64°F103°F 191348°F 195227%0%
Sep 488°F64°F103°F 192549°F 192827%0%
Sep 588°F63°F104°F 192545°F 190227%0%
Sep 688°F63°F104°F 192546°F 198827%0%
Sep 788°F63°F105°F 192543°F 198827%0%
Sep 887°F63°F103°F 193947°F 189827%0%
Sep 987°F62°F103°F 193944°F 195826%0%
Sep 1087°F62°F100°F 191942°F 192426%0%
Sep 1187°F62°F100°F 191240°F 190226%0%
Sep 1286°F61°F98°F 190442°F 194026%0%
Sep 1386°F61°F100°F 192736°F 190226%0%
Sep 1486°F61°F103°F 193935°F 190226%0%
Sep 1585°F60°F102°F 192739°F 190226%0%
Sep 1685°F60°F101°F 192738°F 190426%0%
Sep 1785°F60°F101°F 193138°F 191626%0%
Sep 1885°F59°F100°F 193135°F 190326%0%
Sep 1984°F59°F100°F 192536°F 190326%0%
Sep 2084°F59°F98°F 192040°F 190326%0%
Sep 2184°F58°F100°F 193137°F 192726%0%
Sep 2283°F58°F98°F 193137°F 191327%0%
Sep 2383°F58°F95°F 193137°F 191827%0%
Sep 2483°F57°F95°F 191033°F 198327%0%
Sep 2582°F57°F96°F 191036°F 196527%0%
Sep 2682°F56°F94°F 191134°F 192827%0%
Sep 2782°F56°F94°F 192335°F 189927%0%
Sep 2881°F56°F95°F 191137°F 190327%0%
Sep 2981°F55°F98°F 195336°F 194227%0%
Sep 3080°F55°F97°F 201933°F 194927%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Smiths Grove, 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 6:16 AM, sunset 7:13 PM
September 30
sunrise 6:39 AM, sunset 6:29 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00155097 (Mammoth Cave), public domain. Records: NOAA GHCN-Daily, station USW00093808, 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.