Guilford climate

Guilford Weather in August

NOAA 1991-2020 normals for New Haven Tweed AP, 17.4 km from Guilford

Average highs run from 82°F on August 1 to 79°F on August 31, and lows from 66°F to 62°F. Normal precipitation for the month is 3.55 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 Guilford, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
81°F
Average low
65°F
Precipitation
3.55 in
Record high
100°FAug 27, 1948
Record low
43°FAug 31, 1976
Chance of a freeze
0%
Days of 90°F or more
1.7
Daylight
14 h 21 min to 13 h 09 min
Cloud cover
54%
Humidity
73%
Dew point
62°F
Wind
4.3 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Aug 182°F66°F92°F 200655°F 195335%
Aug 282°F66°F95°F 195555°F 195335%
Aug 382°F66°F95°F 197553°F 195935%
Aug 482°F66°F92°F 202252°F 196434%
Aug 582°F66°F94°F 200554°F 195134%
Aug 682°F66°F93°F 197752°F 195134%
Aug 782°F66°F92°F 202253°F 194834%
Aug 882°F66°F93°F 202249°F 194834%
Aug 982°F66°F93°F 202254°F 196434%
Aug 1082°F66°F92°F 194948°F 196434%
Aug 1182°F66°F93°F 194953°F 200733%
Aug 1282°F66°F94°F 202152°F 196233%
Aug 1382°F65°F94°F 201650°F 195733%
Aug 1481°F65°F91°F 201653°F 195733%
Aug 1581°F65°F89°F 197052°F 196133%
Aug 1681°F65°F91°F 197050°F 196832%
Aug 1781°F65°F90°F 200952°F 195732%
Aug 1881°F65°F91°F 200253°F 195732%
Aug 1981°F65°F89°F 195650°F 195332%
Aug 2081°F64°F93°F 195551°F 195331%
Aug 2181°F64°F91°F 195548°F 194931%
Aug 2281°F64°F89°F 197551°F 196931%
Aug 2380°F64°F87°F 197652°F 195231%
Aug 2480°F64°F89°F 196946°F 195231%
Aug 2580°F63°F92°F 202048°F 195630%
Aug 2680°F63°F97°F 194851°F 196030%
Aug 2780°F63°F100°F 194852°F 196430%
Aug 2880°F63°F92°F 201849°F 196830%
Aug 2979°F63°F97°F 195350°F 195530%
Aug 3079°F62°F92°F 201847°F 196530%
Aug 3179°F62°F95°F 201043°F 197630%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Guilford, in percent.0102030401102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 5:46 AM, sunset 8:07 PM
August 31
sunrise 6:16 AM, sunset 7:25 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00014758 (New Haven Tweed AP), public domain. Records: NOAA GHCN-Daily, station USW00014758, 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.