Allendale climate

Allendale Weather in August

NOAA 1991-2020 normals for Vacaville, 5.7 km from Allendale

Average highs run from 98°F on August 1 to 95°F on August 31, and lows from 60°F to 59°F. Normal precipitation for the month is 0.06 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 Allendale, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
97°F
Average low
60°F
Precipitation
0.06 in
Record high
111°FAug 15, 2020
Record low
48°FAug 23, 2002
Chance of a freeze
0%
Days of 90°F or more
25.3
Daylight
14 h 08 min to 13 h 03 min
Cloud cover
15%
Humidity
48%
Dew point
48°F
Wind
8.5 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°F60°F109°F 201453°F 20200%
Aug 298°F60°F107°F 201753°F 20130%
Aug 398°F60°F108°F 201754°F 20180%
Aug 498°F60°F106°F 200755°F 20130%
Aug 598°F60°F105°F 200551°F 20160%
Aug 698°F60°F105°F 200549°F 20021%
Aug 798°F60°F105°F 200552°F 20161%
Aug 898°F60°F107°F 200153°F 20061%
Aug 997°F60°F104°F 200252°F 20131%
Aug 1097°F60°F106°F 201855°F 20001%
Aug 1197°F60°F106°F 201254°F 19991%
Aug 1297°F60°F102°F 200254°F 20101%
Aug 1397°F60°F106°F 201252°F 20031%
Aug 1497°F60°F107°F 200852°F 20071%
Aug 1597°F60°F111°F 202053°F 20031%
Aug 1697°F60°F108°F 202255°F 20011%
Aug 1796°F59°F106°F 201553°F 20061%
Aug 1896°F59°F108°F 202051°F 20251%
Aug 1996°F59°F104°F 201352°F 20251%
Aug 2096°F59°F105°F 202251°F 20021%
Aug 2196°F59°F104°F 202552°F 20011%
Aug 2296°F59°F102°F 202253°F 20101%
Aug 2396°F59°F102°F 202548°F 20021%
Aug 2496°F59°F107°F 201048°F 20211%
Aug 2596°F59°F109°F 201050°F 20021%
Aug 2695°F59°F106°F 201752°F 20211%
Aug 2795°F59°F108°F 201748°F 20121%
Aug 2895°F59°F110°F 201749°F 20161%
Aug 2995°F59°F107°F 200952°F 20031%
Aug 3095°F59°F103°F 200753°F 20151%
Aug 3195°F59°F103°F 201754°F 20021%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Allendale, in percent.00.20.40.60.811102030
  • Chance of a wet day

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 6:10 AM, sunset 8:18 PM
August 31
sunrise 6:36 AM, sunset 7:39 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00049200 (Vacaville), public domain. Records: NOAA GHCN-Daily, station USW00093241, 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.