Harrisville climate

Harrisville Weather in August

NOAA 1991-2020 normals for Slippery Rock 1 Ssw, 9.9 km from Harrisville

Average highs run from 81°F on August 1 to 78°F on August 31, and lows from 58°F to 54°F. Normal precipitation for the month is 4.02 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 Harrisville, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
80°F
Average low
56°F
Precipitation
4.02 in
Record high
104°FAug 6, 1918
Record low
36°FAug 13, 1930
Chance of a freeze
0%
Days of 90°F or more
3.8
Daylight
14 h 20 min to 13 h 08 min
Cloud cover
58%
Humidity
69%
Dew point
59°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 181°F58°F101°F 193344°F 190339%0%
Aug 281°F58°F101°F 193343°F 192439%0%
Aug 381°F58°F97°F 198841°F 192739%0%
Aug 481°F58°F98°F 193044°F 196639%0%
Aug 581°F58°F100°F 193045°F 190138%0%
Aug 681°F58°F104°F 191844°F 193438%0%
Aug 781°F58°F100°F 191844°F 195738%0%
Aug 881°F57°F102°F 191142°F 190338%0%
Aug 981°F57°F99°F 191143°F 192238%0%
Aug 1081°F57°F99°F 193043°F 192738%0%
Aug 1181°F57°F94°F 190040°F 190938%0%
Aug 1281°F57°F94°F 192637°F 193038%0%
Aug 1380°F57°F94°F 191836°F 193038%0%
Aug 1480°F57°F95°F 193640°F 193038%0%
Aug 1580°F57°F93°F 200242°F 196238%0%
Aug 1680°F57°F95°F 193243°F 192737%0%
Aug 1780°F57°F99°F 191342°F 196337%0%
Aug 1880°F56°F96°F 191342°F 195437%0%
Aug 1980°F56°F94°F 189940°F 192437%0%
Aug 2080°F56°F96°F 191640°F 192937%0%
Aug 2180°F56°F99°F 191639°F 192237%0%
Aug 2280°F56°F96°F 191640°F 192337%0%
Aug 2380°F56°F92°F 189840°F 192537%0%
Aug 2479°F56°F96°F 193240°F 195237%0%
Aug 2579°F55°F93°F 193236°F 193537%0%
Aug 2679°F55°F97°F 191839°F 192337%0%
Aug 2779°F55°F94°F 193241°F 191037%0%
Aug 2879°F55°F94°F 195341°F 194137%0%
Aug 2979°F55°F98°F 198337°F 198237%0%
Aug 3079°F54°F96°F 195336°F 193437%0%
Aug 3178°F54°F96°F 193239°F 193437%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Harrisville, 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 6:16 AM, sunset 8:36 PM
August 31
sunrise 6:46 AM, sunset 7:54 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00368184 (Slippery Rock 1 Ssw), public domain. Records: NOAA GHCN-Daily, station USC00363028, 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.