Mount Pleasant climate

Mount Pleasant Weather in September

NOAA 1991-2020 normals for Moroni, 11.6 km from Mount Pleasant

Average highs run from 84°F on September 1 to 73°F on September 30, and lows from 47°F to 37°F. Normal precipitation for the month is 1.02 in.

September day by day

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

Normal daily high and low temperature at Mount Pleasant, in °F, with the record for each date.020406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
79°F
Average low
42°F
Precipitation
1.02 in
Record high
101°FSep 6, 2022
Record low
16°FSep 18, 1965
Chance of a freeze
70%
Days of 90°F or more
1.0
Daylight
13 h 03 min to 11 h 49 min
Cloud cover
37%
Humidity
47%
Dew point
31°F
Wind
6.3 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 184°F47°F98°F 202232°F 20050%
Sep 284°F46°F96°F 202230°F 20080%
Sep 383°F46°F99°F 202233°F 20080%
Sep 483°F46°F99°F 202234°F 19610%
Sep 583°F45°F98°F 202028°F 20040%
Sep 683°F45°F101°F 202232°F 20040%
Sep 782°F45°F101°F 202234°F 20100%
Sep 882°F44°F95°F 202233°F 20010%
Sep 982°F44°F95°F 202126°F 19620%
Sep 1081°F44°F93°F 199031°F 19620%
Sep 1181°F43°F93°F 199027°F 20100%
Sep 1281°F43°F94°F 199028°F 19740%
Sep 1380°F43°F95°F 200030°F 19670%
Sep 1480°F42°F97°F 200027°F 19930%
Sep 1580°F42°F95°F 200027°F 20040%
Sep 1679°F42°F94°F 200031°F 19910%
Sep 1779°F42°F90°F 201421°F 19650%
Sep 1878°F41°F90°F 195616°F 19650%
Sep 1978°F41°F92°F 195624°F 19880%
Sep 2078°F41°F91°F 201026°F 19650%
Sep 2177°F40°F91°F 200124°F 20040%
Sep 2277°F40°F92°F 200118°F 20040%
Sep 2376°F40°F93°F 200125°F 19680%
Sep 2476°F39°F92°F 200128°F 20180%
Sep 2576°F39°F90°F 202422°F 19580%
Sep 2675°F39°F89°F 200127°F 19700%
Sep 2775°F38°F90°F 202422°F 19960%
Sep 2874°F38°F92°F 202420°F 19990%
Sep 2974°F37°F89°F 199222°F 19850%
Sep 3073°F37°F90°F 199222°F 20190%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mount Pleasant, 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 (MDT).

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 USC00425837 (Moroni), public domain. Records: NOAA GHCN-Daily, station USC00422578, 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.