Potsdam climate

Potsdam Weather in September

NOAA 1991-2020 normals for Colton 2 N, 9.7 km from Potsdam

Average highs run from 76°F on September 1 to 64°F on September 30, and lows from 53°F to 43°F. Normal precipitation for the month is 4.07 in over about 12 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 Potsdam, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
71°F
Average low
48°F
Precipitation
4.07 in
Record high
90°FSep 6, 2018
Record low
29°FSep 19, 2014
Chance of a freeze
20%
Daylight
13 h 14 min to 11 h 45 min
Cloud cover
59%
Humidity
77%
Dew point
51°F
Wind
4.5 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 176°F53°F82°F 201236°F 201736%0%
Sep 276°F53°F84°F 201237°F 201736%0%
Sep 375°F53°F85°F 201237°F 201736%0%
Sep 475°F52°F88°F 201843°F 201637%0%
Sep 575°F52°F85°F 201244°F 201937%0%
Sep 675°F52°F90°F 201843°F 201337%0%
Sep 774°F51°F87°F 201539°F 201338%0%
Sep 874°F51°F88°F 201543°F 201838%0%
Sep 974°F51°F86°F 201237°F 201838%0%
Sep 1073°F50°F86°F 201239°F 201938%0%
Sep 1173°F50°F85°F 201641°F 201239%0%
Sep 1272°F49°F87°F 201340°F 202539%0%
Sep 1372°F49°F81°F 201237°F 201439%0%
Sep 1472°F49°F82°F 201239°F 201940%0%
Sep 1571°F48°F82°F 201836°F 202040%0%
Sep 1671°F48°F85°F 201837°F 201240%0%
Sep 1770°F48°F84°F 201833°F 201341%0%
Sep 1870°F47°F84°F 201832°F 202041%0%
Sep 1970°F47°F83°F 201529°F 201441%0%
Sep 2069°F47°F86°F 201529°F 201442%0%
Sep 2169°F46°F80°F 201333°F 202542%0%
Sep 2268°F46°F79°F 201636°F 202042%0%
Sep 2368°F46°F84°F 201635°F 201343%0%
Sep 2467°F45°F83°F 201733°F 201343%0%
Sep 2567°F45°F85°F 201732°F 201644%0%
Sep 2666°F45°F88°F 201732°F 201644%0%
Sep 2766°F44°F84°F 201736°F 201544%0%
Sep 2865°F44°F86°F 201732°F 201345%0%
Sep 2965°F44°F81°F 202037°F 201745%0%
Sep 3064°F43°F76°F 202537°F 202245%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Potsdam, 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 6:22 AM, sunset 7:36 PM
September 30
sunrise 6:57 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 USC00301664 (Colton 2 N), public domain. Records: NOAA GHCN-Daily, station USC00301664, 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.