Lake County climate

Lake County Weather in April

NOAA 1991-2020 normals for Clearlake 4 Se, 25.3 km from Lake County

Average highs run from 64°F on April 1 to 69°F on April 30, and lows from 37°F to 42°F. Normal precipitation for the month is 1.99 in over about 8 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 Lake County, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
66°F
Average low
39°F
Precipitation
1.99 in
Record high
97°FApr 21, 2009
Record low
31°FApr 8, 2001
Chance of a freeze
76%
Daylight
12 h 40 min to 13 h 49 min
Cloud cover
47%
Humidity
77%
Dew point
43°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
Apr 164°F37°F88°F 200235°F 200429%0%
Apr 264°F37°F82°F 201733°F 202029%0%
Apr 365°F37°F80°F 202632°F 200129%0%
Apr 465°F38°F83°F 202631°F 200929%0%
Apr 565°F38°F84°F 200732°F 201229%0%
Apr 665°F38°F91°F 201632°F 201229%0%
Apr 765°F38°F94°F 202234°F 200829%0%
Apr 865°F38°F84°F 201431°F 200128%0%
Apr 965°F38°F88°F 200433°F 200828%0%
Apr 1066°F38°F88°F 200433°F 200128%0%
Apr 1166°F39°F86°F 200839°F 200828%0%
Apr 1266°F39°F86°F 200833°F 202228%0%
Apr 1366°F39°F86°F 200833°F 200528%0%
Apr 1466°F39°F88°F 202533°F 200528%0%
Apr 1566°F39°F82°F 202035°F 200827%0%
Apr 1667°F39°F85°F 201533°F 201327%0%
Apr 1767°F40°F88°F 201635°F 200627%0%
Apr 1867°F40°F89°F 201935°F 200227%0%
Apr 1967°F40°F92°F 200935°F 200226%0%
Apr 2067°F40°F95°F 200931°F 200826%0%
Apr 2167°F40°F97°F 200931°F 200825%0%
Apr 2267°F40°F91°F 200936°F 200825%0%
Apr 2368°F41°F91°F 201937°F 200725%0%
Apr 2468°F41°F91°F 201932°F 200825%0%
Apr 2568°F41°F92°F 201937°F 200924%0%
Apr 2668°F41°F93°F 200437°F 202124%0%
Apr 2768°F41°F95°F 202338°F 200224%0%
Apr 2868°F41°F92°F 202336°F 200223%0%
Apr 2969°F42°F92°F 201434°F 200923%0%
Apr 3069°F42°F92°F 201435°F 201123%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Lake County, 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 6:55 AM, sunset 7:35 PM
April 30
sunrise 6:14 AM, sunset 8:03 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00041806 (Clearlake 4 Se), public domain. Records: NOAA GHCN-Daily, station USW00023275, 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.