Harrison climate

Harrison Weather in September

NOAA 1991-2020 normals for Bridgton 3 Nw, 7 km from Harrison

Average highs run from 74°F on September 1 to 63°F on September 30, and lows from 53°F to 43°F. Normal precipitation for the month is 3.90 in over about 9 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 Harrison, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
69°F
Average low
48°F
Precipitation
3.90 in
Record high
99°FSep 9, 2002
Record low
20°FSep 29, 2000
Chance of a freeze
29%
Daylight
13 h 13 min to 11 h 46 min
Cloud cover
57%
Humidity
79%
Dew point
53°F
Wind
4.0 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 174°F53°F94°F 201029°F 200228%0%
Sep 274°F53°F94°F 201033°F 201728%0%
Sep 373°F52°F93°F 199938°F 200128%0%
Sep 473°F52°F90°F 199937°F 199728%0%
Sep 573°F52°F91°F 201832°F 200028%0%
Sep 673°F51°F93°F 202330°F 200028%0%
Sep 772°F51°F93°F 200733°F 200028%0%
Sep 872°F51°F96°F 200239°F 200028%0%
Sep 972°F50°F99°F 200234°F 201328%0%
Sep 1071°F50°F95°F 200233°F 200328%0%
Sep 1171°F50°F82°F 200232°F 200628%0%
Sep 1271°F49°F91°F 201331°F 200628%0%
Sep 1370°F49°F84°F 202434°F 201428%0%
Sep 1470°F49°F85°F 200533°F 200128%0%
Sep 1569°F48°F83°F 201529°F 200129%0%
Sep 1669°F48°F88°F 201831°F 200129%0%
Sep 1769°F48°F88°F 202430°F 201129%0%
Sep 1868°F47°F85°F 201533°F 201329%0%
Sep 1968°F47°F84°F 202427°F 201429%0%
Sep 2067°F47°F84°F 201625°F 202029%0%
Sep 2167°F46°F84°F 200225°F 202029%0%
Sep 2266°F46°F85°F 201626°F 202029%0%
Sep 2366°F45°F85°F 201731°F 200830%0%
Sep 2466°F45°F89°F 201728°F 199730%0%
Sep 2565°F45°F90°F 201729°F 200030%0%
Sep 2665°F44°F90°F 200728°F 200930%0%
Sep 2764°F44°F87°F 201728°F 200031%0%
Sep 2864°F43°F87°F 201425°F 200031%0%
Sep 2963°F43°F83°F 202520°F 200031%0%
Sep 3063°F43°F76°F 202427°F 200031%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Harrison, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 6:06 AM, sunset 7:19 PM
September 30
sunrise 6:39 AM, sunset 6:25 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00170844 (Bridgton 3 Nw), public domain. Records: NOAA GHCN-Daily, station USW00054772, 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.