Shannondale climate

Shannondale Weather in September

NOAA 1991-2020 normals for Purcellville, 11.8 km from Shannondale

Average highs run from 82°F on September 1 to 72°F on September 30, and lows from 61°F to 51°F. Normal precipitation for the month is 4.77 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 Shannondale, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
78°F
Average low
56°F
Precipitation
4.77 in
Record high
103°FSep 1, 1932
Record low
29°FSep 21, 1956
Chance of a freeze
2%
Days of 90°F or more
2.6
Daylight
13 h 02 min to 11 h 49 min
Cloud cover
55%
Humidity
69%
Dew point
55°F
Wind
4.0 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°F61°F103°F 193244°F 19460%
Sep 282°F61°F103°F 193243°F 19670%
Sep 382°F61°F102°F 195342°F 19670%
Sep 482°F60°F99°F 192545°F 19340%
Sep 581°F60°F97°F 193744°F 19740%
Sep 681°F60°F100°F 199842°F 19240%
Sep 781°F59°F100°F 194339°F 19240%
Sep 881°F59°F94°F 191641°F 20250%
Sep 980°F59°F101°F 193940°F 19860%
Sep 1080°F58°F99°F 192535°F 19560%
Sep 1180°F58°F100°F 192532°F 19170%
Sep 1279°F58°F102°F 192534°F 19670%
Sep 1379°F57°F100°F 193140°F 19170%
Sep 1479°F57°F100°F 193134°F 19640%
Sep 1578°F57°F98°F 199835°F 19460%
Sep 1678°F56°F98°F 199138°F 19020%
Sep 1778°F56°F96°F 199133°F 19230%
Sep 1877°F55°F96°F 192534°F 19590%
Sep 1977°F55°F95°F 198335°F 19290%
Sep 2076°F55°F99°F 192532°F 20200%
Sep 2176°F54°F94°F 196529°F 19560%
Sep 2276°F54°F97°F 193132°F 19270%
Sep 2375°F53°F101°F 193131°F 19130%
Sep 2475°F53°F96°F 197029°F 19630%
Sep 2574°F53°F94°F 193029°F 19630%
Sep 2674°F52°F93°F 193333°F 19270%
Sep 2774°F52°F96°F 193030°F 19470%
Sep 2873°F51°F90°F 201929°F 19470%
Sep 2973°F51°F93°F 195332°F 19470%
Sep 3072°F51°F94°F 195332°F 19510%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Shannondale, 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 6:40 AM, sunset 7:42 PM
September 30
sunrise 7:06 AM, sunset 6:55 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00444909 (Purcellville), public domain. Records: NOAA GHCN-Daily, station USW00013734, 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.