Mason County climate

Mason County Weather in April

NOAA 1991-2020 normals for Cushman Powerhouse #2, 2.8 km from Mason County

Average highs run from 55°F on April 1 to 62°F on April 30, and lows from 39°F to 43°F. Normal precipitation for the month is 6.13 in over about 17 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 Mason County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
58°F
Average low
40°F
Precipitation
6.13 in
Record high
87°FApr 18, 2016
Record low
23°FApr 13, 2020
Chance of a freeze
32%
Daylight
12 h 52 min to 14 h 25 min
Cloud cover
73%
Humidity
84%
Dew point
38°F
Wind
4.0 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 155°F39°F71°F 201926°F 199957%0%
Apr 255°F39°F69°F 200426°F 199957%0%
Apr 355°F39°F73°F 200424°F 200757%0%
Apr 455°F39°F70°F 200026°F 200957%0%
Apr 555°F39°F73°F 202624°F 202157%0%
Apr 656°F39°F78°F 200726°F 199957%0%
Apr 756°F39°F83°F 201625°F 201256%0%
Apr 856°F39°F79°F 201626°F 201156%0%
Apr 956°F39°F71°F 200427°F 200856%0%
Apr 1056°F39°F77°F 200428°F 201056%0%
Apr 1157°F39°F82°F 200428°F 199956%0%
Apr 1257°F39°F80°F 200824°F 202056%0%
Apr 1357°F40°F70°F 200023°F 202055%0%
Apr 1457°F40°F72°F 202126°F 202155%0%
Apr 1557°F40°F77°F 202127°F 202255%0%
Apr 1658°F40°F81°F 199926°F 202254%0%
Apr 1758°F40°F81°F 202128°F 201154%0%
Apr 1858°F40°F87°F 201629°F 200654%0%
Apr 1958°F40°F86°F 201628°F 201153%0%
Apr 2059°F41°F81°F 201627°F 200853%0%
Apr 2159°F41°F76°F 200930°F 200852%0%
Apr 2259°F41°F78°F 200527°F 202552%0%
Apr 2359°F41°F76°F 201226°F 201151%0%
Apr 2460°F41°F81°F 201828°F 200051%0%
Apr 2560°F41°F78°F 201828°F 202650%0%
Apr 2660°F42°F86°F 201828°F 200850%0%
Apr 2761°F42°F76°F 201530°F 202249%0%
Apr 2861°F42°F85°F 202328°F 201949%0%
Apr 2961°F42°F76°F 200428°F 201148%0%
Apr 3062°F43°F83°F 201428°F 201947%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Mason County, in percent, and of at least 0.1 inch of snowfall.02040601102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (PDT).

April 1
sunrise 6:51 AM, sunset 7:43 PM
April 30
sunrise 5:58 AM, sunset 8:23 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00451939 (Cushman Powerhouse #2), public domain. Records: NOAA GHCN-Daily, station USW00094227, 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.