Knightstown climate

Knightstown Weather in September

NOAA 1991-2020 normals for New Castle 3 Sw, 15.6 km from Knightstown

Average highs run from 81°F on September 1 to 72°F on September 30, and lows from 57°F to 47°F. Normal precipitation for the month is 3.07 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 Knightstown, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
77°F
Average low
52°F
Precipitation
3.07 in
Record high
101°FSep 2, 1953
Record low
27°FSep 18, 1959
Chance of a freeze
4%
Days of 90°F or more
1.7
Daylight
13 h 03 min to 11 h 49 min
Cloud cover
49%
Humidity
70%
Dew point
55°F
Wind
8.3 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°F57°F96°F 195342°F 196726%0%
Sep 281°F56°F101°F 195342°F 196726%0%
Sep 381°F56°F100°F 195342°F 196726%0%
Sep 480°F56°F98°F 201141°F 199726%0%
Sep 580°F56°F95°F 202641°F 199726%0%
Sep 680°F55°F98°F 195441°F 196226%0%
Sep 780°F55°F98°F 195439°F 198826%0%
Sep 880°F55°F93°F 196436°F 195626%0%
Sep 979°F54°F93°F 196037°F 202426%0%
Sep 1079°F54°F95°F 195538°F 202426%0%
Sep 1179°F54°F98°F 201338°F 199326%0%
Sep 1279°F53°F97°F 201337°F 195526%0%
Sep 1378°F53°F92°F 201937°F 196426%0%
Sep 1478°F53°F91°F 195634°F 195326%0%
Sep 1578°F52°F90°F 199137°F 196026%0%
Sep 1677°F52°F90°F 195536°F 201126%0%
Sep 1777°F52°F94°F 202631°F 195926%0%
Sep 1877°F51°F92°F 195527°F 195926%0%
Sep 1977°F51°F94°F 195527°F 195926%0%
Sep 2076°F51°F93°F 195535°F 195626%0%
Sep 2176°F50°F92°F 202433°F 195627%0%
Sep 2275°F50°F95°F 202432°F 195327%0%
Sep 2375°F49°F90°F 201730°F 199527%0%
Sep 2475°F49°F93°F 201029°F 197427%0%
Sep 2574°F49°F92°F 200731°F 198327%0%
Sep 2674°F48°F89°F 201733°F 195027%0%
Sep 2774°F48°F90°F 201735°F 199127%0%
Sep 2873°F48°F90°F 199835°F 199127%0%
Sep 2973°F47°F89°F 198630°F 195127%0%
Sep 3072°F47°F97°F 195331°F 196327%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Knightstown, 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 (EDT).

September 1
sunrise 7:10 AM, sunset 8:13 PM
September 30
sunrise 7:37 AM, sunset 7:26 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00126164 (New Castle 3 Sw), public domain. Records: NOAA GHCN-Daily, station USC00126164, 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.