Uncasville climate

Uncasville Weather in September

NOAA 1991-2020 normals for Norwich Public Utility Plt, 10.9 km from Uncasville

Average highs run from 80°F on September 1 to 70°F on September 30, and lows from 60°F to 50°F. Normal precipitation for the month is 4.79 in over about 9 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 Uncasville, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
76°F
Average low
55°F
Precipitation
4.79 in
Record high
90°FSep 4, 2018
Record low
36°FSep 29, 2000
Chance of a freeze
1%
Days of 90°F or more
0.5
Daylight
13 h 06 min to 11 h 48 min
Cloud cover
54%
Humidity
76%
Dew point
56°F
Wind
5.4 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 180°F60°F89°F 201049°F 201727%0%
Sep 280°F59°F87°F 201045°F 201727%0%
Sep 380°F59°F87°F 202048°F 202427%0%
Sep 479°F59°F90°F 201849°F 202427%0%
Sep 579°F59°F89°F 202348°F 200027%0%
Sep 679°F58°F90°F 202347°F 200027%0%
Sep 779°F58°F89°F 202346°F 200028%0%
Sep 878°F58°F86°F 201548°F 202528%0%
Sep 978°F57°F88°F 201647°F 201328%0%
Sep 1078°F57°F84°F 202346°F 200328%0%
Sep 1177°F57°F87°F 201347°F 200628%0%
Sep 1277°F56°F82°F 200543°F 200628%0%
Sep 1377°F56°F87°F 201945°F 200228%0%
Sep 1476°F56°F82°F 201649°F 201428%0%
Sep 1576°F55°F83°F 200847°F 200128%0%
Sep 1676°F55°F80°F 200344°F 201028%0%
Sep 1775°F55°F79°F 200543°F 201329%0%
Sep 1875°F54°F81°F 201641°F 201329%0%
Sep 1974°F54°F81°F 202443°F 201929%0%
Sep 2074°F53°F80°F 202242°F 202029%0%
Sep 2174°F53°F84°F 201640°F 202029%0%
Sep 2273°F53°F81°F 200439°F 202030%0%
Sep 2373°F52°F86°F 201741°F 201430%0%
Sep 2473°F52°F82°F 200943°F 201330%0%
Sep 2572°F52°F82°F 201041°F 201230%0%
Sep 2672°F51°F78°F 200743°F 200930%0%
Sep 2771°F51°F80°F 201741°F 200031%0%
Sep 2871°F50°F81°F 201742°F 200031%0%
Sep 2971°F50°F78°F 201936°F 200031%0%
Sep 3070°F50°F77°F 201038°F 200031%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Uncasville, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

September 1
sunrise 6:15 AM, sunset 7:21 PM
September 30
sunrise 6:44 AM, sunset 6:32 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00065910 (Norwich Public Utility Plt), public domain. Records: NOAA GHCN-Daily, station USW00014707, 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.