Allentown climate

Allentown Weather in August

NOAA 1991-2020 normals for Milton Exp Stn, 9.7 km from Allentown

Average highs run from 91°F on August 1 to 90°F on August 31, and lows from 69°F to 68°F. Normal precipitation for the month is 6.89 in over about 13 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 Allentown, in °F, with the record for each date.60708090100110151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
91°F
Average low
69°F
Precipitation
6.89 in
Record high
104°FAug 5, 1947
Record low
60°FAug 29, 1968
Chance of a freeze
0%
Days of 90°F or more
23.4
Daylight
13 h 37 min to 12 h 48 min
Cloud cover
55%
Humidity
78%
Dew point
73°F
Wind
3.8 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 191°F69°F102°F 201063°F 201747%0%
Aug 291°F69°F101°F 198663°F 201746%0%
Aug 391°F69°F99°F 201167°F 199846%0%
Aug 491°F69°F101°F 201167°F 199846%0%
Aug 591°F69°F104°F 194768°F 195046%0%
Aug 691°F69°F99°F 200766°F 194845%0%
Aug 791°F69°F100°F 195667°F 194845%0%
Aug 891°F69°F99°F 196865°F 198945%0%
Aug 991°F69°F98°F 200762°F 198945%0%
Aug 1091°F69°F98°F 196964°F 197645%0%
Aug 1191°F69°F100°F 200764°F 196744%0%
Aug 1291°F69°F98°F 195462°F 196744%0%
Aug 1391°F69°F99°F 195164°F 196744%0%
Aug 1491°F69°F100°F 199064°F 196743%0%
Aug 1591°F69°F102°F 199066°F 196743%0%
Aug 1691°F69°F101°F 199065°F 201143%0%
Aug 1791°F69°F99°F 199068°F 196742%0%
Aug 1891°F69°F101°F 199068°F 197242%0%
Aug 1991°F69°F99°F 199064°F 197641%0%
Aug 2091°F69°F100°F 199067°F 200141%0%
Aug 2191°F69°F101°F 198366°F 195640%0%
Aug 2291°F68°F99°F 200762°F 195640%0%
Aug 2391°F68°F102°F 201164°F 199739%0%
Aug 2490°F68°F101°F 201162°F 200939%0%
Aug 2590°F68°F100°F 201164°F 201539%0%
Aug 2690°F68°F103°F 201161°F 201538%0%
Aug 2790°F68°F99°F 196962°F 201538%0%
Aug 2890°F68°F99°F 201164°F 196837%0%
Aug 2990°F68°F101°F 201160°F 196837%0%
Aug 3090°F68°F102°F 201160°F 196836%0%
Aug 3190°F68°F100°F 196460°F 196836%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Allentown, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

August 1
sunrise 6:06 AM, sunset 7:43 PM
August 31
sunrise 6:24 AM, sunset 7:12 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00085793 (Milton Exp Stn), public domain. Records: NOAA GHCN-Daily, station USW00093841, 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.