Worcester climate

Worcester Weather in September

NOAA 1991-2020 normals for Cooperstown, 20 km from Worcester

Average highs run from 68°F on September 1 to 58°F on September 30, and lows from 55°F to 45°F. Normal precipitation for the month is 4.21 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 Worcester, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
64°F
Average low
50°F
Precipitation
4.21 in
Record high
85°FSep 12, 2013
Record low
27°FSep 22, 2020
Chance of a freeze
23%
Daylight
13 h 09 min to 11 h 47 min
Cloud cover
58%
Humidity
77%
Dew point
51°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 168°F55°F80°F 201234°F 201736%0%
Sep 268°F55°F78°F 201532°F 201736%0%
Sep 368°F54°F80°F 201533°F 201736%0%
Sep 468°F54°F83°F 201837°F 202436%0%
Sep 567°F54°F80°F 201842°F 202036%0%
Sep 667°F54°F83°F 201835°F 201336%0%
Sep 767°F53°F82°F 202345°F 202436%0%
Sep 867°F53°F83°F 201544°F 202436%0%
Sep 966°F53°F83°F 201540°F 201936%0%
Sep 1066°F52°F83°F 201535°F 201336%0%
Sep 1166°F52°F78°F 202036°F 201236%0%
Sep 1265°F52°F85°F 201336°F 201236%0%
Sep 1365°F51°F75°F 201341°F 201937%0%
Sep 1465°F51°F76°F 202439°F 201437%0%
Sep 1564°F51°F73°F 202432°F 202037%0%
Sep 1664°F50°F75°F 201834°F 201437%0%
Sep 1764°F50°F78°F 201832°F 201337%0%
Sep 1863°F50°F76°F 201533°F 201338%0%
Sep 1963°F49°F77°F 201828°F 202038%0%
Sep 2062°F49°F75°F 201530°F 202038%0%
Sep 2162°F48°F75°F 201628°F 202038%0%
Sep 2262°F48°F74°F 201727°F 202039%0%
Sep 2361°F48°F77°F 201928°F 202039%0%
Sep 2461°F47°F77°F 201732°F 202239%0%
Sep 2561°F47°F82°F 201732°F 201640%0%
Sep 2660°F46°F72°F 202032°F 201640%0%
Sep 2760°F46°F71°F 202036°F 201540%0%
Sep 2859°F46°F71°F 202036°F 201541%0%
Sep 2959°F45°F74°F 202536°F 201341%0%
Sep 3058°F45°F70°F 202531°F 202241%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Worcester, 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 6:24 AM, sunset 7:33 PM
September 30
sunrise 6:55 AM, sunset 6:42 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00301752 (Cooperstown), public domain. Records: NOAA GHCN-Daily, station USC00303322, 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.