Northampton climate

Northampton Weather in September

NOAA 1991-2020 normals for Baiting Hollow, 6.6 km from Northampton

Average highs run from 79°F on September 1 to 69°F on September 30, and lows from 60°F to 50°F. Normal precipitation for the month is 4.26 in over about 11 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 Northampton, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
75°F
Average low
55°F
Precipitation
4.26 in
Record high
94°FSep 1, 2010
Record low
32°FSep 22, 2020
Chance of a freeze
0%
Days of 90°F or more
0.5
Daylight
13 h 05 min to 11 h 48 min
Cloud cover
53%
Humidity
78%
Dew point
60°F
Wind
9.8 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 179°F60°F94°F 201045°F 201733%0%
Sep 279°F60°F92°F 195339°F 201733%0%
Sep 379°F59°F86°F 201440°F 200933%0%
Sep 478°F59°F90°F 201843°F 202434%0%
Sep 578°F59°F92°F 202344°F 200034%0%
Sep 678°F59°F92°F 202342°F 200034%0%
Sep 778°F58°F91°F 202339°F 200034%0%
Sep 877°F58°F88°F 201542°F 200035%0%
Sep 977°F58°F91°F 201639°F 202435%0%
Sep 1077°F57°F86°F 196143°F 200335%0%
Sep 1177°F57°F84°F 201641°F 201235%0%
Sep 1276°F57°F88°F 195242°F 200636%0%
Sep 1376°F56°F89°F 195241°F 200636%0%
Sep 1476°F56°F82°F 202442°F 201436%0%
Sep 1575°F56°F84°F 200840°F 200137%0%
Sep 1675°F55°F91°F 199838°F 200137%0%
Sep 1774°F55°F84°F 201536°F 201337%0%
Sep 1874°F55°F82°F 196533°F 201338%0%
Sep 1974°F54°F83°F 196736°F 201338%0%
Sep 2073°F54°F81°F 202235°F 201939%0%
Sep 2173°F53°F80°F 200535°F 202039%0%
Sep 2273°F53°F84°F 196132°F 202039%0%
Sep 2372°F53°F86°F 200536°F 199840%0%
Sep 2472°F52°F85°F 201733°F 199840%0%
Sep 2571°F52°F81°F 201135°F 196341%0%
Sep 2671°F51°F80°F 196135°F 201641%0%
Sep 2771°F51°F83°F 199837°F 196642%0%
Sep 2870°F51°F80°F 201438°F 196542%0%
Sep 2970°F50°F80°F 201533°F 200042%0%
Sep 3069°F50°F79°F 195233°F 200043%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Northampton, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 6:18 AM, sunset 7:23 PM
September 30
sunrise 6:46 AM, sunset 6:34 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00300364 (Baiting Hollow), public domain. Records: NOAA GHCN-Daily, station USW00014719, 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.