Delaware County climate

Delaware County Weather in August

NOAA 1991-2020 normals for Marcus Hook, 10.5 km from Delaware County

Average highs run from 88°F on August 1 to 85°F on August 31, and lows from 70°F to 67°F. Normal precipitation for the month is 3.68 in over about 8 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 Delaware County, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
87°F
Average low
69°F
Precipitation
3.68 in
Record high
101°FAug 9, 2001
Record low
44°FAug 29, 1986
Chance of a freeze
0%
Days of 90°F or more
7.1
Daylight
14 h 15 min to 13 h 05 min
Cloud cover
56%
Humidity
71%
Dew point
63°F
Wind
4.0 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
Aug 188°F70°F99°F 200256°F 196428%0%
Aug 288°F70°F99°F 195558°F 194728%0%
Aug 388°F70°F98°F 197556°F 195928%0%
Aug 488°F70°F98°F 199552°F 196528%0%
Aug 588°F70°F97°F 194452°F 195128%0%
Aug 688°F70°F100°F 195553°F 195728%0%
Aug 788°F70°F99°F 200154°F 196428%0%
Aug 888°F70°F100°F 200155°F 198928%0%
Aug 988°F70°F101°F 200154°F 196428%0%
Aug 1088°F70°F98°F 194954°F 196428%0%
Aug 1187°F69°F97°F 194955°F 197228%0%
Aug 1287°F69°F97°F 200553°F 196228%0%
Aug 1387°F69°F99°F 200251°F 194128%0%
Aug 1487°F69°F99°F 200250°F 196428%0%
Aug 1587°F69°F98°F 198850°F 196328%0%
Aug 1687°F69°F98°F 199753°F 196428%0%
Aug 1787°F69°F96°F 199550°F 197927%0%
Aug 1887°F69°F97°F 199552°F 196127%0%
Aug 1987°F69°F94°F 200251°F 196327%0%
Aug 2087°F69°F99°F 198352°F 194927%0%
Aug 2186°F68°F95°F 200954°F 194027%0%
Aug 2286°F68°F93°F 197652°F 194026%0%
Aug 2386°F68°F93°F 196853°F 195226%0%
Aug 2486°F68°F93°F 194750°F 195726%0%
Aug 2586°F68°F97°F 196847°F 196326%0%
Aug 2686°F68°F100°F 194851°F 194226%0%
Aug 2786°F67°F98°F 194851°F 194426%0%
Aug 2885°F67°F99°F 194849°F 198626%0%
Aug 2985°F67°F98°F 195344°F 198626%0%
Aug 3085°F67°F100°F 195347°F 198626%0%
Aug 3185°F67°F101°F 195345°F 196526%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Delaware County, in percent, and of at least 0.1 inch of snowfall.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 6:00 AM, sunset 8:15 PM
August 31
sunrise 6:29 AM, sunset 7:34 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00365390 (Marcus Hook), public domain. Records: NOAA GHCN-Daily, station USW00013739, 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.