Rock Island climate

Rock Island Weather in April

NOAA 1991-2020 normals for Wenatchee Pangborn AP, 4.9 km from Rock Island

Average highs run from 57°F on April 1 to 67°F on April 30, and lows from 37°F to 44°F. Normal precipitation for the month is 0.57 in over about 5 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 Rock Island, in °F, with the record for each date.20406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
62°F
Average low
40°F
Precipitation
0.57 in
Record high
93°FApr 24, 1977
Record low
23°FApr 15, 2022
Chance of a freeze
70%
Daylight
12 h 52 min to 14 h 26 min
Cloud cover
62%
Humidity
65%
Dew point
32°F
Wind
6.7 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 157°F37°F80°F 199226°F 200817%0%
Apr 258°F38°F78°F 199227°F 202017%0%
Apr 358°F38°F73°F 197727°F 197517%0%
Apr 458°F38°F77°F 197729°F 198817%0%
Apr 559°F38°F78°F 197729°F 199717%0%
Apr 659°F38°F79°F 197730°F 199117%0%
Apr 759°F39°F83°F 197728°F 197317%0%
Apr 859°F39°F81°F 201628°F 197017%0%
Apr 960°F39°F78°F 201628°F 197217%0%
Apr 1060°F39°F77°F 196829°F 201017%0%
Apr 1160°F39°F75°F 198829°F 199717%0%
Apr 1261°F40°F79°F 200027°F 199817%0%
Apr 1361°F40°F79°F 198828°F 198117%0%
Apr 1461°F40°F83°F 198827°F 202216%0%
Apr 1562°F40°F77°F 198823°F 202216%0%
Apr 1662°F40°F76°F 199030°F 200616%0%
Apr 1762°F41°F85°F 199431°F 196416%0%
Apr 1863°F41°F83°F 199431°F 196416%0%
Apr 1963°F41°F82°F 201629°F 200816%0%
Apr 2063°F41°F86°F 201627°F 196116%0%
Apr 2164°F42°F84°F 200925°F 200816%0%
Apr 2264°F42°F82°F 201230°F 200816%0%
Apr 2364°F42°F87°F 197730°F 197216%0%
Apr 2465°F42°F93°F 197728°F 198516%0%
Apr 2565°F43°F82°F 197732°F 200816%0%
Apr 2665°F43°F82°F 199232°F 196916%0%
Apr 2766°F43°F86°F 198732°F 197017%0%
Apr 2866°F44°F83°F 198732°F 198617%0%
Apr 2966°F44°F84°F 199833°F 196217%0%
Apr 3067°F44°F88°F 199832°F 197217%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Rock Island, 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 7:31 PM
April 30
sunrise 5:45 AM, sunset 8:11 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00094239 (Wenatchee Pangborn AP), public domain. Records: NOAA GHCN-Daily, station USW00094239, 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.