Union County climate

Union County Weather in April

NOAA 1991-2020 normals for Grenville, 18.2 km from Union County

Average highs run from 62°F on April 1 to 68°F on April 30, and lows from 31°F to 38°F. Normal precipitation for the month is 1.07 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 Union County, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
65°F
Average low
34°F
Precipitation
1.07 in
Snowfall
1.3 in
Record high
92°FApr 24, 2012
Record low
7°FApr 4, 1920
Chance of a freeze
100%
Daylight
12 h 36 min to 13 h 40 min
Cloud cover
49%
Humidity
42%
Dew point
25°F
Wind
13.6 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 162°F31°F86°F 20128°F 193613%2%
Apr 263°F31°F86°F 201116°F 197513%2%
Apr 363°F32°F84°F 194313°F 197913%2%
Apr 463°F32°F87°F 19677°F 192014%2%
Apr 563°F32°F86°F 202111°F 193614%2%
Apr 663°F32°F88°F 197213°F 192814%2%
Apr 763°F32°F84°F 192712°F 193814%2%
Apr 864°F32°F86°F 193013°F 191414%2%
Apr 964°F33°F83°F 193416°F 192814%2%
Apr 1064°F33°F88°F 193614°F 195215%2%
Apr 1164°F33°F88°F 197214°F 194015%2%
Apr 1264°F33°F88°F 202512°F 194015%2%
Apr 1365°F33°F89°F 192518°F 193315%2%
Apr 1465°F34°F86°F 200215°F 192815%2%
Apr 1565°F34°F88°F 192518°F 194516%2%
Apr 1665°F34°F86°F 191320°F 195116%2%
Apr 1765°F34°F88°F 191317°F 194516%2%
Apr 1865°F34°F88°F 194816°F 195316%2%
Apr 1966°F35°F85°F 200121°F 195316%2%
Apr 2066°F35°F90°F 198920°F 196616%1%
Apr 2166°F35°F90°F 198921°F 192716%1%
Apr 2266°F35°F91°F 196524°F 192016%1%
Apr 2367°F36°F88°F 198919°F 201317%1%
Apr 2467°F36°F92°F 201219°F 201317%1%
Apr 2567°F36°F90°F 201222°F 195017%1%
Apr 2667°F37°F90°F 192721°F 192417%1%
Apr 2768°F37°F87°F 198121°F 192017%1%
Apr 2868°F37°F89°F 191027°F 191717%1%
Apr 2968°F37°F87°F 198124°F 191717%1%
Apr 3068°F38°F91°F 201323°F 190917%1%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Union County, 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 (MDT).

April 1
sunrise 6:40 AM, sunset 7:16 PM
April 30
sunrise 6:01 AM, sunset 7:41 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00293706 (Grenville), public domain. Records: NOAA GHCN-Daily, station USW00023051, 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.