Hackettstown climate

Hackettstown Weather in August

NOAA 1991-2020 normals for Belvidere Brg, 21.6 km from Hackettstown

Average highs run from 84°F on August 1 to 81°F on August 31, and lows from 61°F to 57°F. Normal precipitation for the month is 4.55 in over about 11 wet days.

August day by day

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

Normal daily high and low temperature at Hackettstown, in °F, with the record for each date.406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
83°F
Average low
59°F
Precipitation
4.55 in
Record high
99°FAug 9, 2001
Record low
45°FAug 21, 2000
Chance of a freeze
0%
Days of 90°F or more
3.7
Daylight
14 h 19 min to 13 h 08 min
Cloud cover
58%
Humidity
72%
Dew point
60°F
Wind
3.4 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
Aug 184°F61°F95°F 200656°F 202138%0%
Aug 284°F61°F95°F 200654°F 202538%0%
Aug 384°F61°F95°F 200653°F 202138%0%
Aug 484°F61°F97°F 202255°F 199938%0%
Aug 584°F61°F94°F 202251°F 201338%0%
Aug 683°F61°F93°F 200152°F 200438%0%
Aug 783°F61°F95°F 200150°F 200238%0%
Aug 883°F60°F95°F 200150°F 200438%0%
Aug 983°F60°F99°F 200150°F 200238%0%
Aug 1083°F60°F91°F 200148°F 199938%0%
Aug 1183°F60°F92°F 202153°F 200637%0%
Aug 1283°F60°F94°F 200249°F 200637%0%
Aug 1383°F60°F96°F 200547°F 200637%0%
Aug 1483°F60°F97°F 200251°F 200637%0%
Aug 1583°F60°F93°F 200249°F 201336%0%
Aug 1683°F60°F92°F 200249°F 201436%0%
Aug 1783°F60°F92°F 200255°F 200036%0%
Aug 1883°F59°F92°F 200252°F 201435%0%
Aug 1983°F59°F94°F 202250°F 199835%0%
Aug 2082°F59°F96°F 202246°F 199835%0%
Aug 2182°F59°F90°F 202245°F 200034%0%
Aug 2282°F59°F89°F 202049°F 200034%0%
Aug 2382°F59°F87°F 202050°F 201633%0%
Aug 2482°F59°F91°F 202149°F 200333%0%
Aug 2582°F58°F92°F 202150°F 200532%0%
Aug 2682°F58°F94°F 202149°F 201732%0%
Aug 2782°F58°F93°F 202149°F 202532%0%
Aug 2881°F58°F92°F 201847°F 202531%0%
Aug 2981°F57°F92°F 201049°F 201431%0%
Aug 3081°F57°F92°F 202250°F 199931%0%
Aug 3181°F57°F93°F 201051°F 200331%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Hackettstown, 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).

August 1
sunrise 5:56 AM, sunset 8:15 PM
August 31
sunrise 6:25 AM, sunset 7:33 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00280734 (Belvidere Brg), public domain. Records: NOAA GHCN-Daily, station USW00054779, 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.