Copperopolis climate

Copperopolis Weather in October

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

Average highs run from 86°F on October 1 to 73°F on October 31, and lows from 56°F to 49°F. Normal precipitation for the month is 1.51 in over about 4 wet days.

October 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.20406080100120151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

October at a glance

Average high
80°F
Average low
52°F
Precipitation
1.51 in
Record high
105°FOct 2, 2024
Record low
36°FOct 27, 1996
Chance of a freeze
0%
Days of 90°F or more
3.7
Daylight
11 h 47 min to 10 h 37 min
Cloud cover
31%
Humidity
43%
Dew point
36°F
Wind
5.1 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
Oct 186°F56°F101°F 200144°F 20198%0%
Oct 286°F56°F105°F 202440°F 20179%0%
Oct 385°F56°F104°F 202446°F 19989%0%
Oct 485°F56°F105°F 202443°F 20089%0%
Oct 584°F55°F103°F 202442°F 201910%0%
Oct 684°F55°F101°F 202442°F 200710%0%
Oct 784°F55°F101°F 202443°F 201110%0%
Oct 883°F55°F102°F 202443°F 200710%0%
Oct 983°F54°F100°F 199643°F 202111%0%
Oct 1082°F54°F97°F 199638°F 200811%0%
Oct 1182°F54°F94°F 199941°F 200811%0%
Oct 1282°F53°F94°F 199241°F 200812%0%
Oct 1381°F53°F95°F 201542°F 200812%0%
Oct 1481°F53°F97°F 201543°F 200812%0%
Oct 1580°F53°F95°F 201043°F 199413%0%
Oct 1680°F52°F94°F 200144°F 199413%0%
Oct 1779°F52°F93°F 202044°F 199613%0%
Oct 1879°F52°F92°F 202046°F 199314%0%
Oct 1979°F52°F93°F 202038°F 201914%0%
Oct 2078°F51°F94°F 202337°F 199615%0%
Oct 2178°F51°F91°F 200339°F 199615%0%
Oct 2277°F51°F94°F 200340°F 199615%0%
Oct 2377°F51°F91°F 200338°F 201716%0%
Oct 2476°F50°F88°F 200740°F 200216%0%
Oct 2576°F50°F89°F 201940°F 199617%0%
Oct 2675°F50°F90°F 201737°F 199617%0%
Oct 2775°F50°F92°F 200336°F 199618%0%
Oct 2875°F49°F91°F 200337°F 199618%0%
Oct 2974°F49°F90°F 200338°F 199619%0%
Oct 3074°F49°F88°F 200840°F 199419%0%
Oct 3173°F49°F86°F 199339°F 200320%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.051015201102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

October 1
sunrise 6:58 AM, sunset 6:45 PM
October 31
sunrise 7:27 AM, sunset 6:04 PM

Every day of October: 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.