Copperopolis climate

Copperopolis Weather in April

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

Average highs run from 67°F on April 1 to 74°F on April 30, and lows from 44°F to 49°F. Normal precipitation for the month is 2.58 in over about 7 wet days.

April 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.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
70°F
Average low
46°F
Precipitation
2.58 in
Record high
94°FApr 28, 2004
Record low
31°FApr 9, 1999
Chance of a freeze
11%
Daylight
12 h 39 min to 13 h 46 min
Cloud cover
52%
Humidity
69%
Dew point
43°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
Apr 167°F44°F81°F 200033°F 199929%0%
Apr 267°F44°F83°F 201136°F 199929%0%
Apr 367°F45°F82°F 200033°F 200129%0%
Apr 467°F45°F85°F 200032°F 199929%0%
Apr 567°F45°F80°F 200033°F 199928%0%
Apr 668°F45°F83°F 202633°F 201228%0%
Apr 768°F45°F88°F 201636°F 199928%0%
Apr 868°F45°F91°F 202234°F 200127%0%
Apr 968°F45°F92°F 202231°F 199927%0%
Apr 1068°F45°F83°F 200432°F 200127%0%
Apr 1169°F45°F84°F 200436°F 199926%0%
Apr 1269°F45°F83°F 200431°F 202226%0%
Apr 1369°F45°F89°F 200831°F 202225%0%
Apr 1469°F45°F90°F 200835°F 199825%0%
Apr 1570°F46°F81°F 200232°F 200924%0%
Apr 1670°F46°F88°F 199433°F 200924%0%
Apr 1770°F46°F84°F 199738°F 201323%0%
Apr 1870°F46°F84°F 199433°F 200723%0%
Apr 1971°F46°F85°F 201632°F 199523%0%
Apr 2071°F46°F87°F 200932°F 200822%0%
Apr 2171°F47°F90°F 200933°F 200822%0%
Apr 2272°F47°F93°F 200936°F 199521%0%
Apr 2372°F47°F92°F 200938°F 200021%0%
Apr 2472°F47°F87°F 201837°F 200821%0%
Apr 2573°F47°F88°F 201938°F 200920%0%
Apr 2673°F48°F91°F 200437°F 199420%0%
Apr 2773°F48°F93°F 200440°F 199420%0%
Apr 2874°F48°F94°F 200435°F 200919%0%
Apr 2974°F48°F91°F 201336°F 201019%0%
Apr 3074°F49°F91°F 201337°F 201019%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.01020301102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

April 1
sunrise 6:47 AM, sunset 7:26 PM
April 30
sunrise 6:07 AM, sunset 7:53 PM

Every day of April: 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.