Culpeper County climate

Culpeper County Weather in September

NOAA 1991-2020 normals for Boston 4 Se, 14 km from Culpeper County

Average highs run from 82°F on September 1 to 73°F on September 30, and lows from 60°F to 50°F.

September day by day

The normal high and low for each date, and the record, in °F.

Normal daily high and low temperature at Culpeper County, 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
55°F
Record high
99°FSep 5, 2023
Record low
38°FSep 20, 2020
Chance of a freeze
0%
Days of 90°F or more
2.0
Daylight
13 h 01 min to 11 h 49 min
Cloud cover
54%
Humidity
71%
Dew point
56°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 182°F60°F94°F 201650°F 20090%
Sep 282°F59°F94°F 199849°F 20090%
Sep 382°F59°F95°F 202648°F 20090%
Sep 481°F59°F94°F 201847°F 20240%
Sep 581°F59°F99°F 202347°F 20240%
Sep 681°F58°F99°F 199846°F 20000%
Sep 780°F58°F97°F 202345°F 20000%
Sep 880°F58°F93°F 201647°F 20170%
Sep 980°F58°F96°F 201643°F 20240%
Sep 1080°F57°F96°F 201644°F 20240%
Sep 1179°F57°F94°F 201647°F 20100%
Sep 1279°F57°F96°F 199848°F 20120%
Sep 1379°F56°F96°F 199849°F 20020%
Sep 1478°F56°F94°F 199845°F 20140%
Sep 1578°F56°F95°F 201642°F 20010%
Sep 1678°F55°F95°F 199843°F 20010%
Sep 1777°F55°F90°F 199841°F 20000%
Sep 1877°F55°F88°F 201741°F 20130%
Sep 1977°F54°F88°F 201640°F 20130%
Sep 2076°F54°F89°F 199838°F 20200%
Sep 2176°F54°F91°F 199839°F 20200%
Sep 2276°F53°F88°F 201940°F 20200%
Sep 2375°F53°F90°F 201042°F 20200%
Sep 2475°F52°F92°F 201642°F 19980%
Sep 2575°F52°F94°F 201041°F 20120%
Sep 2674°F52°F93°F 201040°F 20120%
Sep 2774°F51°F99°F 199840°F 20010%
Sep 2873°F51°F90°F 199838°F 20220%
Sep 2973°F50°F83°F 201940°F 20130%
Sep 3073°F50°F90°F 199840°F 20030%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Culpeper County, 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 6:41 AM, sunset 7:42 PM
September 30
sunrise 7:07 AM, sunset 6:56 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00440860 (Boston 4 Se), public domain. Records: NOAA GHCN-Daily, station USC00447985, 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.