Copperopolis climate

Copperopolis Weather in August

NOAA 1991-2020 normals for New Melones Dam Hq, 13.9 km from Copperopolis

Average highs run from 98°F on August 1 to 94°F on August 31, and lows from 66°F to 63°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 Copperopolis, in °F, with the record for each date.406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

August at a glance

Average high
96°F
Average low
65°F
Precipitation
0.04 in
Record high
110°FAug 5, 1998
Record low
43°FAug 21, 2008
Chance of a freeze
0%
Days of 90°F or more
27.2
Daylight
14 h 05 min to 13 h 01 min
Cloud cover
15%
Humidity
32%
Dew point
41°F
Wind
5.4 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 198°F66°F106°F 199651°F 19941%0%
Aug 298°F66°F108°F 200055°F 19921%0%
Aug 398°F66°F106°F 199556°F 20011%0%
Aug 498°F66°F109°F 199850°F 20151%0%
Aug 597°F66°F110°F 199856°F 20161%0%
Aug 697°F66°F109°F 199851°F 19991%0%
Aug 797°F65°F107°F 199751°F 20071%0%
Aug 897°F65°F109°F 199754°F 20071%0%
Aug 997°F65°F105°F 200156°F 19991%0%
Aug 1097°F65°F107°F 199650°F 20131%0%
Aug 1197°F65°F110°F 199652°F 19931%0%
Aug 1297°F65°F109°F 199654°F 19931%0%
Aug 1397°F65°F109°F 201256°F 19931%0%
Aug 1497°F65°F110°F 199656°F 19991%0%
Aug 1596°F65°F108°F 202053°F 19931%0%
Aug 1696°F65°F110°F 202054°F 19931%0%
Aug 1796°F64°F109°F 202052°F 19951%0%
Aug 1896°F64°F107°F 202053°F 19951%0%
Aug 1996°F64°F108°F 202056°F 19981%0%
Aug 2096°F64°F107°F 199254°F 19931%0%
Aug 2196°F64°F105°F 199243°F 20081%0%
Aug 2296°F64°F105°F 202548°F 19922%0%
Aug 2395°F64°F102°F 199953°F 19922%0%
Aug 2495°F64°F105°F 202555°F 20022%0%
Aug 2595°F64°F107°F 201055°F 19922%0%
Aug 2695°F64°F108°F 201055°F 19972%0%
Aug 2795°F63°F107°F 201750°F 19962%0%
Aug 2895°F63°F107°F 201753°F 19942%0%
Aug 2995°F63°F110°F 201750°F 20102%0%
Aug 3095°F63°F106°F 200855°F 19922%0%
Aug 3194°F63°F105°F 199851°F 19922%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Copperopolis, in percent, and of at least 0.1 inch of snowfall.00.511.521102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

August 1
sunrise 6:06 AM, sunset 8:11 PM
August 31
sunrise 6:32 AM, sunset 7:33 PM

Every day of August: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00046174 (New Melones Dam Hq), public domain. Records: NOAA GHCN-Daily, station USC00046174, 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.