Griggstown climate

Griggstown Weather in September

NOAA 1991-2020 normals for Wertsville 4 Ne, 14.1 km from Griggstown

Average highs run from 81°F on September 1 to 71°F on September 30, and lows from 59°F to 50°F. Normal precipitation for the month is 4.48 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 Griggstown, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

September at a glance

Average high
77°F
Average low
55°F
Precipitation
4.48 in
Record high
97°FSep 8, 2015
Record low
34°FSep 22, 2020
Chance of a freeze
0%
Days of 90°F or more
1.5
Daylight
13 h 04 min to 11 h 48 min
Cloud cover
55%
Humidity
74%
Dew point
57°F
Wind
6.0 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 181°F59°F96°F 201049°F 200931%0%
Sep 281°F59°F96°F 201044°F 201731%0%
Sep 381°F59°F95°F 201547°F 202431%0%
Sep 481°F59°F94°F 200846°F 202431%0%
Sep 580°F58°F93°F 201846°F 201031%0%
Sep 680°F58°F95°F 201844°F 201031%0%
Sep 780°F58°F94°F 202344°F 201331%0%
Sep 880°F57°F97°F 201545°F 202431%0%
Sep 979°F57°F95°F 201540°F 202431%0%
Sep 1079°F57°F95°F 201648°F 201231%0%
Sep 1179°F57°F93°F 201344°F 201231%0%
Sep 1278°F56°F91°F 200545°F 200631%0%
Sep 1378°F56°F94°F 200543°F 200231%0%
Sep 1478°F56°F92°F 200844°F 201331%0%
Sep 1577°F55°F87°F 200540°F 201331%0%
Sep 1677°F55°F87°F 200540°F 200731%0%
Sep 1777°F55°F88°F 201541°F 200031%0%
Sep 1876°F54°F87°F 201539°F 201332%0%
Sep 1976°F54°F87°F 202437°F 202032%0%
Sep 2075°F53°F85°F 201638°F 201932%0%
Sep 2175°F53°F88°F 201635°F 202032%0%
Sep 2275°F53°F90°F 201034°F 202032%0%
Sep 2374°F52°F92°F 201938°F 201432%0%
Sep 2474°F52°F93°F 201736°F 201333%0%
Sep 2573°F52°F93°F 201738°F 201233%0%
Sep 2673°F51°F91°F 200739°F 200133%0%
Sep 2772°F51°F91°F 201740°F 200133%0%
Sep 2872°F50°F87°F 201439°F 200134%0%
Sep 2972°F50°F83°F 201536°F 200034%0%
Sep 3071°F50°F83°F 202535°F 200034%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Griggstown, 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 6:26 AM, sunset 7:30 PM
September 30
sunrise 6:54 AM, sunset 6:42 PM

Every day of September: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00289363 (Wertsville 4 Ne), public domain. Records: NOAA GHCN-Daily, station USW00054785, 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.