Acton climate

Acton Weather in August

NOAA 1991-2020 normals for Palmdale, 16.2 km from Acton

Average highs run from 98°F on August 1 to 97°F on August 31, and lows from 68°F to 64°F. Normal precipitation for the month is 0.04 in over about 0 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 Acton, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
98°F
Average low
66°F
Precipitation
0.04 in
Record high
111°FAug 16, 2020
Record low
44°FAug 21, 1959
Chance of a freeze
0%
Days of 90°F or more
29.5
Daylight
13 h 51 min to 12 h 55 min
Cloud cover
16%
Humidity
31%
Dew point
42°F
Wind
6.7 mph

Every day of the month

A wet day has at least 0.01 inch of precipitation.

DateNormal highNormal lowRecord highRecord lowChance wet
Aug 198°F68°F109°F 193853°F 19372%
Aug 298°F68°F109°F 196956°F 19602%
Aug 398°F68°F108°F 196950°F 19532%
Aug 498°F68°F108°F 202151°F 19532%
Aug 598°F68°F110°F 199848°F 19562%
Aug 698°F68°F108°F 202450°F 19562%
Aug 798°F68°F108°F 197052°F 19502%
Aug 898°F68°F107°F 201248°F 20062%
Aug 998°F67°F108°F 201255°F 19382%
Aug 1098°F67°F109°F 201248°F 19492%
Aug 1198°F67°F108°F 200249°F 19492%
Aug 1298°F67°F108°F 200248°F 19492%
Aug 1398°F67°F109°F 196251°F 19522%
Aug 1498°F67°F109°F 196252°F 19522%
Aug 1598°F67°F108°F 200245°F 19542%
Aug 1698°F66°F111°F 202045°F 19542%
Aug 1798°F66°F111°F 202047°F 19542%
Aug 1898°F66°F108°F 195049°F 19492%
Aug 1998°F66°F109°F 195049°F 19492%
Aug 2098°F66°F109°F 202051°F 19482%
Aug 2198°F66°F107°F 202044°F 19592%
Aug 2297°F66°F106°F 202550°F 19682%
Aug 2397°F65°F107°F 202249°F 19482%
Aug 2497°F65°F107°F 201045°F 19732%
Aug 2597°F65°F107°F 201048°F 19632%
Aug 2697°F65°F107°F 201150°F 19542%
Aug 2797°F65°F107°F 201747°F 19542%
Aug 2897°F65°F108°F 201750°F 19552%
Aug 2997°F64°F108°F 199852°F 19732%
Aug 3097°F64°F106°F 194851°F 19692%
Aug 3197°F64°F108°F 202245°F 19572%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Acton, in percent.00.511.521102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 6:03 AM, sunset 7:54 PM
August 31
sunrise 6:25 AM, sunset 7:20 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046624 (Palmdale), public domain. Records: NOAA GHCN-Daily, station USW00023182, 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.