Williamson County climate

Williamson County Weather in April

NOAA 1991-2020 normals for Carbondale Sewage Plt, 20.7 km from Williamson County

Average highs run from 62°F on April 1 to 72°F on April 30, and lows from 39°F to 50°F. Normal precipitation for the month is 5.55 in over about 12 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 Williamson County, in °F, with the record for each date.020406080100151015202530
  • Normal low
  • Normal high
  • Record high
  • Record low

April at a glance

Average high
68°F
Average low
44°F
Precipitation
5.55 in
Record high
92°FApr 28, 1915
Record low
20°FApr 1, 1954
Chance of a freeze
72%
Daylight
12 h 38 min to 13 h 44 min
Cloud cover
61%
Humidity
78%
Dew point
49°F
Wind
9.4 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°F39°F88°F 194020°F 195439%
Apr 263°F40°F87°F 201223°F 189939%
Apr 363°F40°F89°F 201221°F 198739%
Apr 464°F40°F85°F 193423°F 190039%
Apr 564°F40°F85°F 193223°F 190039%
Apr 664°F41°F83°F 192224°F 198239%
Apr 765°F41°F85°F 191523°F 197139%
Apr 865°F42°F85°F 192424°F 197239%
Apr 966°F42°F87°F 202022°F 198539%0%
Apr 1066°F42°F88°F 193021°F 190040%0%
Apr 1166°F43°F91°F 193023°F 198940%0%
Apr 1267°F43°F88°F 193023°F 190040%0%
Apr 1367°F43°F86°F 193026°F 195740%0%
Apr 1467°F44°F87°F 200624°F 195040%0%
Apr 1568°F44°F86°F 191227°F 195040%0%
Apr 1668°F44°F87°F 192425°F 192840%0%
Apr 1768°F45°F88°F 197726°F 195140%0%
Apr 1869°F45°F90°F 191327°F 192140%0%
Apr 1969°F46°F89°F 191523°F 202240%0%
Apr 2069°F46°F87°F 197123°F 202241%0%
Apr 2170°F46°F90°F 198729°F 190141%0%
Apr 2270°F47°F91°F 196528°F 192741%0%
Apr 2370°F47°F91°F 196530°F 195141%0%
Apr 2471°F48°F90°F 192527°F 191041%0%
Apr 2571°F48°F90°F 191530°F 193041%0%
Apr 2671°F48°F91°F 192528°F 191942%0%
Apr 2772°F49°F89°F 198929°F 202242%0%
Apr 2872°F49°F92°F 191530°F 199242%0%
Apr 2972°F49°F88°F 189931°F 193442%0%
Apr 3072°F50°F89°F 190134°F 192242%0%

Chance of rain

The chance of at least 0.01 inch of precipitation on each date at Williamson County, in percent, and of at least 0.1 inch of snowfall.010203040501102030
  • Chance of a wet day
  • Chance of snowfall

Sunrise and sunset

Times for 2026, local time (CDT).

April 1
sunrise 6:41 AM, sunset 7:19 PM
April 30
sunrise 6:01 AM, sunset 7:45 PM

Every day of April: sun and moon

Other months

Sources

Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00111265 (Carbondale Sewage Plt), public domain. Records: NOAA GHCN-Daily, station USC00111265, 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.