Sunnyside climate

Sunnyside Weather in April

NOAA 1991-2020 normals for Sunnyside, 0.1 km from Sunnyside

Average highs run from 60°F on April 1 to 68°F on April 30, and lows from 33°F to 39°F. Normal precipitation for the month is 0.61 in over about 6 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 Sunnyside, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
63°F
Average low
36°F
Precipitation
0.61 in
Record high
96°FApr 29, 1926
Record low
15°FApr 15, 1901
Chance of a freeze
99%
Daylight
12 h 50 min to 14 h 21 min
Cloud cover
62%
Humidity
58%
Dew point
34°F
Wind
8.1 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 160°F33°F78°F 191119°F 193619%0%
Apr 260°F33°F81°F 199016°F 193519%0%
Apr 360°F33°F84°F 199217°F 191819%0%
Apr 460°F33°F79°F 195119°F 189619%0%
Apr 560°F34°F85°F 196022°F 189919%0%
Apr 661°F34°F82°F 192424°F 189519%0%
Apr 761°F34°F84°F 193419°F 190119%0%
Apr 861°F34°F88°F 197721°F 198219%0%
Apr 961°F34°F89°F 192521°F 192919%0%
Apr 1062°F34°F88°F 192523°F 193319%0%
Apr 1162°F35°F84°F 192522°F 190320%0%
Apr 1262°F35°F88°F 193623°F 192220%0%
Apr 1362°F35°F87°F 194717°F 191120%0%
Apr 1463°F35°F88°F 194721°F 191120%0%
Apr 1563°F35°F89°F 192615°F 190119%0%
Apr 1663°F36°F89°F 192625°F 190919%0%
Apr 1764°F36°F88°F 193620°F 201319%0%
Apr 1864°F36°F87°F 189721°F 190919%0%
Apr 1964°F36°F89°F 193421°F 192719%0%
Apr 2064°F36°F91°F 193418°F 192719%0%
Apr 2165°F37°F93°F 193424°F 192019%0%
Apr 2265°F37°F93°F 193425°F 192019%0%
Apr 2365°F37°F87°F 191027°F 192419%0%
Apr 2466°F37°F88°F 197726°F 192119%0%
Apr 2566°F38°F94°F 191024°F 192419%0%
Apr 2666°F38°F89°F 192627°F 192419%0%
Apr 2767°F38°F91°F 189528°F 195519%0%
Apr 2867°F38°F94°F 192625°F 190719%0%
Apr 2968°F39°F96°F 192628°F 197219%0%
Apr 3068°F39°F89°F 195727°F 190719%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sunnyside, 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).

April 1
sunrise 6:39 AM, sunset 7:29 PM
April 30
sunrise 5:47 AM, sunset 8:08 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00458207 (Sunnyside), public domain. Records: NOAA GHCN-Daily, station USC00458207, 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.