Cohasset climate

Cohasset Weather in August

NOAA 1991-2020 normals for Pokegama Dam, 2.9 km from Cohasset

Average highs run from 78°F on August 1 to 74°F on August 31, and lows from 57°F to 52°F. Normal precipitation for the month is 3.39 in over about 10 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 Cohasset, in °F, with the record for each date.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
76°F
Average low
55°F
Precipitation
3.39 in
Record high
100°FAug 19, 1976
Record low
27°FAug 28, 1934
Chance of a freeze
0%
Days of 90°F or more
0.7
Daylight
14 h 55 min to 13 h 24 min
Cloud cover
56%
Humidity
66%
Dew point
54°F
Wind
9.4 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 178°F57°F98°F 193038°F 192033%0%
Aug 278°F57°F95°F 193036°F 192733%0%
Aug 378°F57°F95°F 193037°F 197133%0%
Aug 478°F57°F99°F 194736°F 197233%0%
Aug 578°F57°F97°F 194736°F 192333%0%
Aug 678°F56°F96°F 200136°F 191733%0%
Aug 778°F56°F97°F 200138°F 197233%0%
Aug 878°F56°F96°F 200540°F 191733%0%
Aug 978°F56°F92°F 202136°F 192732%0%
Aug 1077°F56°F98°F 194737°F 193032%0%
Aug 1177°F56°F97°F 194732°F 191832%0%
Aug 1277°F56°F92°F 197839°F 195032%0%
Aug 1377°F56°F92°F 192232°F 191632%0%
Aug 1477°F55°F94°F 201534°F 196432%0%
Aug 1577°F55°F95°F 200334°F 192933%0%
Aug 1677°F55°F96°F 192236°F 192433%0%
Aug 1776°F55°F97°F 198830°F 192433%0%
Aug 1876°F55°F99°F 197630°F 191533%0%
Aug 1976°F55°F100°F 197636°F 194033%0%
Aug 2076°F54°F99°F 197631°F 193433%0%
Aug 2176°F54°F91°F 197632°F 200433%0%
Aug 2276°F54°F92°F 192230°F 192033%0%
Aug 2375°F54°F94°F 194729°F 194033%0%
Aug 2475°F54°F94°F 194831°F 192734%0%
Aug 2575°F53°F94°F 201334°F 195034%0%
Aug 2675°F53°F93°F 201332°F 191534%0%
Aug 2775°F53°F94°F 199129°F 194134%0%
Aug 2874°F53°F97°F 198427°F 193434%0%
Aug 2974°F52°F99°F 198431°F 191734%0%
Aug 3074°F52°F91°F 196133°F 191634%0%
Aug 3174°F52°F90°F 193032°F 193535%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Cohasset, 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 (CDT).

August 1
sunrise 5:53 AM, sunset 8:48 PM
August 31
sunrise 6:32 AM, sunset 7:56 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00216612 (Pokegama Dam), public domain. Records: NOAA GHCN-Daily, station USC00213303, 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.