Roscoe climate

Roscoe Weather in September

NOAA 1991-2020 normals for Charleroi Lock 4, 7.9 km from Roscoe

Average highs run from 82°F on September 1 to 73°F on September 30, and lows from 60°F to 51°F. Normal precipitation for the month is 3.26 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 Roscoe, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
78°F
Average low
56°F
Precipitation
3.26 in
Record high
95°FSep 4, 2011
Record low
37°FSep 21, 2020
Chance of a freeze
0%
Days of 90°F or more
2.2
Daylight
13 h 04 min to 11 h 48 min
Cloud cover
56%
Humidity
69%
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 182°F60°F90°F 201552°F 202329%0%
Sep 282°F60°F92°F 202445°F 202529%0%
Sep 382°F60°F93°F 202645°F 202529%0%
Sep 481°F59°F95°F 201145°F 202429%0%
Sep 581°F59°F94°F 201852°F 201329%0%
Sep 681°F59°F95°F 202351°F 202029%0%
Sep 781°F59°F89°F 201549°F 201729%0%
Sep 880°F58°F90°F 201544°F 202430%0%
Sep 980°F58°F92°F 201542°F 202530%0%
Sep 1080°F58°F91°F 201543°F 202430%0%
Sep 1180°F58°F91°F 201642°F 202530%0%
Sep 1279°F57°F93°F 201942°F 202530%0%
Sep 1379°F57°F93°F 201942°F 202530%0%
Sep 1479°F57°F93°F 201944°F 201430%0%
Sep 1578°F56°F87°F 202543°F 201430%0%
Sep 1678°F56°F86°F 201640°F 201130%0%
Sep 1778°F56°F88°F 201939°F 201130%0%
Sep 1877°F55°F85°F 202146°F 201430%0%
Sep 1977°F55°F89°F 202140°F 202031%0%
Sep 2077°F55°F87°F 202138°F 202031%0%
Sep 2176°F54°F94°F 202437°F 202031%0%
Sep 2276°F54°F88°F 201639°F 202031%0%
Sep 2375°F54°F90°F 201939°F 202031%0%
Sep 2475°F53°F87°F 201640°F 201332%0%
Sep 2575°F53°F89°F 201740°F 201332%0%
Sep 2674°F53°F86°F 201745°F 201332%0%
Sep 2774°F52°F89°F 201746°F 202232%0%
Sep 2873°F52°F88°F 201742°F 202233%0%
Sep 2973°F51°F85°F 201944°F 202233%0%
Sep 3073°F51°F85°F 201943°F 202233%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Roscoe, 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 6:47 AM, sunset 7:51 PM
September 30
sunrise 7:15 AM, sunset 7:03 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00361377 (Charleroi Lock 4), public domain. Records: NOAA GHCN-Daily, station USC00361726, 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.