Sister Bay climate

Sister Bay Weather in April

NOAA 1991-2020 normals for Ephraim 1NE-Wwtp, 3.1 km from Sister Bay

Average highs run from 45°F on April 1 to 58°F on April 30, and lows from 27°F to 36°F. Normal precipitation for the month is 2.71 in over about 9 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 Sister Bay, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
51°F
Average low
31°F
Precipitation
2.71 in
Snowfall
6.4 in
Record high
80°FApr 16, 2010
Record low
6°FApr 8, 2018
Chance of a freeze
100%
Daylight
12 h 48 min to 14 h 14 min
Cloud cover
74%
Humidity
83%
Dew point
33°F
Wind
13.9 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 145°F27°F62°F 201013°F 201827%10%
Apr 245°F27°F65°F 201014°F 201827%9%
Apr 346°F27°F63°F 201515°F 201927%9%
Apr 446°F27°F58°F 202115°F 201528%9%
Apr 546°F28°F57°F 20107°F 201828%9%
Apr 647°F28°F66°F 201017°F 201828%9%
Apr 747°F28°F72°F 202115°F 201828%9%
Apr 848°F29°F64°F 20216°F 201829%9%
Apr 948°F29°F61°F 201917°F 201829%8%
Apr 1048°F29°F63°F 201918°F 201829%8%
Apr 1149°F30°F65°F 201124°F 201829%8%
Apr 1249°F30°F71°F 202319°F 200930%8%
Apr 1350°F30°F78°F 202322°F 202030%8%
Apr 1450°F31°F72°F 202317°F 201330%7%
Apr 1551°F31°F74°F 202316°F 201430%7%
Apr 1651°F31°F80°F 201011°F 201431%7%
Apr 1752°F32°F74°F 201619°F 201431%6%
Apr 1852°F32°F75°F 201626°F 201131%6%
Apr 1953°F32°F71°F 200923°F 202331%6%
Apr 2053°F33°F59°F 201620°F 201832%5%
Apr 2153°F33°F64°F 201022°F 202632%5%
Apr 2254°F33°F65°F 201420°F 202032%5%
Apr 2354°F34°F64°F 201724°F 200932%4%
Apr 2455°F34°F67°F 202621°F 201532%4%
Apr 2555°F34°F73°F 200921°F 201432%4%
Apr 2656°F35°F66°F 201726°F 201832%3%
Apr 2756°F35°F68°F 201725°F 202232%3%
Apr 2857°F35°F75°F 202420°F 202233%3%
Apr 2957°F36°F71°F 201319°F 201833%3%
Apr 3058°F36°F63°F 201024°F 202533%2%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Sister Bay, in percent, and of at least 0.1 inch of snowfall.0102030401102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

April 1
sunrise 6:29 AM, sunset 7:17 PM
April 30
sunrise 5:39 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 USC00472626 (Ephraim 1NE-Wwtp), public domain. Records: NOAA GHCN-Daily, station USC00472626, 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.