Montgomery County climate

Montgomery County Weather in September

NOAA 1991-2020 normals for Cobleskill 2 Ese, 26.1 km from Montgomery County

Average highs run from 76°F on September 1 to 65°F on September 30, and lows from 54°F to 43°F. Normal precipitation for the month is 3.59 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 Montgomery County, 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
49°F
Precipitation
3.59 in
Record high
85°FSep 12, 2013
Record low
27°FSep 22, 2020
Chance of a freeze
33%
Daylight
13 h 10 min to 11 h 47 min
Cloud cover
58%
Humidity
80%
Dew point
53°F
Wind
3.8 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 176°F54°F80°F 201234°F 201737%0%
Sep 276°F53°F78°F 201532°F 201737%0%
Sep 375°F53°F80°F 201533°F 201737%0%
Sep 475°F53°F83°F 201837°F 202436%0%
Sep 575°F52°F80°F 201842°F 202036%0%
Sep 675°F52°F83°F 201835°F 201336%0%
Sep 774°F52°F82°F 202345°F 202436%0%
Sep 874°F51°F83°F 201544°F 202436%0%
Sep 974°F51°F83°F 201540°F 201936%0%
Sep 1074°F51°F83°F 201535°F 201336%0%
Sep 1173°F50°F78°F 202036°F 201237%0%
Sep 1273°F50°F85°F 201336°F 201237%0%
Sep 1373°F50°F75°F 201341°F 201937%0%
Sep 1472°F49°F76°F 202439°F 201437%0%
Sep 1572°F49°F73°F 202432°F 202037%0%
Sep 1671°F49°F75°F 201834°F 201437%0%
Sep 1771°F48°F78°F 201832°F 201337%0%
Sep 1871°F48°F76°F 201533°F 201337%0%
Sep 1970°F47°F77°F 201828°F 202037%0%
Sep 2070°F47°F75°F 201530°F 202038%0%
Sep 2169°F47°F75°F 201628°F 202038%0%
Sep 2269°F46°F74°F 201727°F 202038%0%
Sep 2369°F46°F77°F 201928°F 202039%0%
Sep 2468°F46°F77°F 201732°F 202239%0%
Sep 2568°F45°F82°F 201732°F 201639%0%
Sep 2667°F45°F72°F 202032°F 201640%0%
Sep 2767°F45°F71°F 202036°F 201540%0%
Sep 2866°F44°F71°F 202036°F 201540%0%
Sep 2966°F44°F74°F 202536°F 201340%0%
Sep 3065°F43°F70°F 202531°F 202241%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Montgomery County, 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 7:32 PM
September 30
sunrise 6:54 AM, sunset 6:41 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00301595 (Cobleskill 2 Ese), 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.