Brighton climate

Brighton Weather in September

NOAA 1991-2020 normals for Milford Gm Proving Ground, 9.6 km from Brighton

Average highs run from 78°F on September 1 to 68°F on September 30, and lows from 56°F to 46°F. Normal precipitation for the month is 3.51 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 Brighton, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
74°F
Average low
51°F
Precipitation
3.51 in
Record high
97°FSep 2, 1894
Record low
21°FSep 29, 1893
Chance of a freeze
17%
Days of 90°F or more
0.8
Daylight
13 h 09 min to 11 h 47 min
Cloud cover
53%
Humidity
73%
Dew point
53°F
Wind
9.2 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 178°F56°F95°F 201238°F 18950%
Sep 278°F56°F97°F 189437°F 18920%
Sep 378°F55°F96°F 189838°F 18930%
Sep 477°F55°F92°F 201142°F 18910%
Sep 577°F55°F96°F 192240°F 19090%
Sep 677°F55°F97°F 192239°F 18920%
Sep 777°F54°F92°F 190140°F 18920%
Sep 876°F54°F95°F 192235°F 18910%
Sep 976°F54°F96°F 189735°F 18910%
Sep 1076°F53°F94°F 189533°F 19170%
Sep 1175°F53°F96°F 189532°F 19170%
Sep 1275°F53°F91°F 189536°F 19040%
Sep 1375°F52°F91°F 200539°F 19040%
Sep 1474°F52°F95°F 192734°F 20130%
Sep 1574°F51°F95°F 192734°F 20130%
Sep 1674°F51°F90°F 192732°F 20070%
Sep 1773°F51°F92°F 190633°F 20130%
Sep 1873°F50°F91°F 189528°F 19010%
Sep 1973°F50°F95°F 189533°F 19160%
Sep 2072°F49°F95°F 189528°F 18970%
Sep 2172°F49°F96°F 189532°F 19040%
Sep 2271°F49°F97°F 189129°F 19040%
Sep 2371°F48°F90°F 189130°F 19130%
Sep 2470°F48°F91°F 189131°F 18950%
Sep 2570°F47°F93°F 192029°F 18940%
Sep 2670°F47°F89°F 192027°F 18930%
Sep 2769°F47°F90°F 192327°F 18930%
Sep 2869°F46°F90°F 192331°F 18930%
Sep 2968°F46°F87°F 190521°F 18930%
Sep 3068°F46°F86°F 189730°F 20060%

Chance of rain

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

September 1
sunrise 7:00 AM, sunset 8:09 PM
September 30
sunrise 7:31 AM, sunset 7:18 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00205452 (Milford Gm Proving Ground), public domain. Records: NOAA GHCN-Daily, station USC00203947, 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.