Greenwich climate

Greenwich Weather in September

NOAA 1991-2020 normals for Buskirk, 18.1 km from Greenwich

Average highs run from 78°F on September 1 to 68°F on September 30, and lows from 52°F to 43°F. Normal precipitation for the month is 3.86 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 Greenwich, 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
48°F
Precipitation
3.86 in
Record high
97°FSep 2, 1953
Record low
25°FSep 27, 1947
Chance of a freeze
26%
Days of 90°F or more
0.6
Daylight
13 h 11 min to 11 h 47 min
Cloud cover
56%
Humidity
78%
Dew point
53°F
Wind
3.6 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°F52°F91°F 195338°F 19670%
Sep 278°F52°F97°F 195334°F 20170%
Sep 378°F52°F95°F 197337°F 19760%
Sep 478°F52°F92°F 195338°F 19460%
Sep 577°F51°F92°F 197334°F 20000%
Sep 677°F51°F89°F 198334°F 20000%
Sep 777°F51°F92°F 201535°F 19620%
Sep 877°F50°F90°F 195935°F 19780%
Sep 976°F50°F92°F 195936°F 19800%
Sep 1076°F50°F91°F 200233°F 19560%
Sep 1176°F50°F91°F 201334°F 19950%
Sep 1275°F49°F88°F 196133°F 20060%
Sep 1375°F49°F90°F 195234°F 19640%
Sep 1475°F49°F86°F 200534°F 19630%
Sep 1574°F48°F84°F 194732°F 19750%
Sep 1674°F48°F87°F 199132°F 19640%
Sep 1774°F48°F85°F 194631°F 20070%
Sep 1873°F47°F89°F 194632°F 19500%
Sep 1973°F47°F88°F 194628°F 20200%
Sep 2072°F47°F87°F 194628°F 19790%
Sep 2172°F46°F85°F 196527°F 20200%
Sep 2272°F46°F89°F 196527°F 20200%
Sep 2371°F46°F84°F 195931°F 19550%
Sep 2471°F45°F87°F 201729°F 19630%
Sep 2570°F45°F90°F 201726°F 19500%
Sep 2670°F45°F88°F 201728°F 19470%
Sep 2770°F44°F87°F 201725°F 19470%
Sep 2869°F44°F85°F 202527°F 19470%
Sep 2969°F44°F79°F 195925°F 20000%
Sep 3068°F43°F82°F 198625°F 19910%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Greenwich, 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 6:18 AM, sunset 7:29 PM
September 30
sunrise 6:50 AM, sunset 6:37 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00301068 (Buskirk), public domain. Records: NOAA GHCN-Daily, station USW00014750, 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.