Riverside climate

Riverside Weather in August

NOAA 1991-2020 normals for Stamford 5 N, 10.4 km from Riverside

Average highs run from 85°F on August 1 to 81°F on August 31, and lows from 65°F to 61°F. Normal precipitation for the month is 3.81 in over about 9 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 Riverside, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
83°F
Average low
63°F
Precipitation
3.81 in
Record high
101°FAug 9, 2001
Record low
41°FAug 29, 1982
Chance of a freeze
0%
Days of 90°F or more
4.5
Daylight
14 h 20 min to 13 h 08 min
Cloud cover
56%
Humidity
73%
Dew point
63°F
Wind
5.6 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 185°F65°F96°F 195556°F 195331%0%
Aug 284°F65°F98°F 197554°F 195331%0%
Aug 384°F64°F96°F 197551°F 195331%0%
Aug 484°F64°F93°F 198954°F 196631%0%
Aug 584°F64°F98°F 195551°F 197231%0%
Aug 684°F64°F93°F 195552°F 195731%0%
Aug 784°F64°F95°F 200153°F 196431%0%
Aug 884°F64°F96°F 198352°F 194831%0%
Aug 984°F64°F101°F 200152°F 198931%0%
Aug 1084°F64°F99°F 194951°F 196431%0%
Aug 1184°F64°F95°F 194951°F 197231%0%
Aug 1284°F64°F93°F 200253°F 196831%0%
Aug 1383°F64°F95°F 201650°F 195730%0%
Aug 1483°F64°F93°F 198552°F 196130%0%
Aug 1583°F63°F95°F 198553°F 196430%0%
Aug 1683°F63°F93°F 199749°F 197230%0%
Aug 1783°F63°F92°F 195951°F 197229%0%
Aug 1883°F63°F91°F 200252°F 197929%0%
Aug 1983°F63°F90°F 201952°F 195329%0%
Aug 2083°F63°F95°F 198347°F 194929%0%
Aug 2183°F63°F94°F 195548°F 197728%0%
Aug 2282°F63°F89°F 195545°F 198228%0%
Aug 2382°F62°F90°F 197851°F 195228%0%
Aug 2482°F62°F90°F 197847°F 197127%0%
Aug 2582°F62°F93°F 194849°F 197127%0%
Aug 2682°F62°F100°F 194850°F 197727%0%
Aug 2782°F62°F95°F 194852°F 196927%0%
Aug 2881°F62°F96°F 194846°F 198627%0%
Aug 2981°F61°F97°F 195341°F 198227%0%
Aug 3081°F61°F97°F 195347°F 197627%0%
Aug 3181°F61°F98°F 195342°F 197627%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Riverside, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (EDT).

August 1
sunrise 5:50 AM, sunset 8:10 PM
August 31
sunrise 6:20 AM, sunset 7:28 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00067970 (Stamford 5 N), public domain. Records: NOAA GHCN-Daily, station USW00094745, 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.