Johnson County Weather in April
Average highs run from 57°F on April 1 to 68°F on April 30, and lows from 35°F to 45°F. Normal precipitation for the month is 4.91 in over about 12 wet days.
April day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
April at a glance
- Average high
- 63°F
- Average low
- 40°F
- Precipitation
- 4.91 in
- Snowfall
- 0.1 in
- Record high
- 87°FApr 19, 1977
- Record low
- 18°FApr 8, 1982
- Chance of a freeze
- 97%
- Daylight
- 12 h 39 min to 13 h 50 min
- Cloud cover
- 66%
- Humidity
- 79%
- Dew point
- 45°F
- Wind
- 10.1 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.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Apr 1 | 57°F | 35°F | 84°F 1981 | 20°F 1969 | 37% | 2% |
| Apr 2 | 58°F | 35°F | 82°F 1963 | 21°F 1961 | 37% | 2% |
| Apr 3 | 58°F | 36°F | 82°F 1963 | 22°F 2013 | 37% | 1% |
| Apr 4 | 58°F | 36°F | 84°F 2012 | 19°F 1995 | 38% | 1% |
| Apr 5 | 59°F | 36°F | 79°F 1986 | 24°F 1995 | 38% | 1% |
| Apr 6 | 59°F | 36°F | 86°F 1988 | 19°F 1982 | 38% | 1% |
| Apr 7 | 59°F | 37°F | 84°F 2010 | 19°F 1982 | 38% | 1% |
| Apr 8 | 60°F | 37°F | 83°F 1954 | 18°F 1982 | 38% | 1% |
| Apr 9 | 60°F | 37°F | 82°F 2001 | 18°F 1997 | 39% | 1% |
| Apr 10 | 61°F | 38°F | 84°F 1967 | 20°F 1985 | 39% | 1% |
| Apr 11 | 61°F | 38°F | 82°F 1977 | 24°F 1985 | 39% | 1% |
| Apr 12 | 61°F | 38°F | 82°F 1977 | 27°F 1957 | 39% | 1% |
| Apr 13 | 62°F | 39°F | 82°F 1971 | 26°F 1957 | 39% | 1% |
| Apr 14 | 62°F | 39°F | 82°F 1977 | 26°F 1953 | 40% | 1% |
| Apr 15 | 62°F | 40°F | 81°F 2010 | 27°F 1957 | 40% | 1% |
| Apr 16 | 63°F | 40°F | 84°F 2002 | 27°F 1961 | 40% | 0% |
| Apr 17 | 63°F | 40°F | 84°F 1967 | 27°F 1961 | 40% | 0% |
| Apr 18 | 64°F | 41°F | 84°F 1976 | 23°F 1990 | 40% | 0% |
| Apr 19 | 64°F | 41°F | 87°F 1977 | 25°F 1983 | 40% | 0% |
| Apr 20 | 64°F | 41°F | 85°F 2002 | 25°F 1983 | 41% | 0% |
| Apr 21 | 65°F | 42°F | 85°F 1985 | 28°F 1983 | 41% | 0% |
| Apr 22 | 65°F | 42°F | 86°F 1985 | 27°F 1978 | 41% | 0% |
| Apr 23 | 65°F | 42°F | 86°F 1980 | 25°F 2003 | 41% | 0% |
| Apr 24 | 66°F | 43°F | 85°F 1960 | 32°F 1967 | 41% | 0% |
| Apr 25 | 66°F | 43°F | 87°F 1960 | 31°F 1967 | 41% | 0% |
| Apr 26 | 66°F | 43°F | 86°F 1954 | 28°F 1976 | 41% | 0% |
| Apr 27 | 67°F | 44°F | 87°F 1986 | 31°F 1992 | 41% | 0% |
| Apr 28 | 67°F | 44°F | 87°F 1986 | 36°F 1995 | 41% | 0% |
| Apr 29 | 67°F | 45°F | 83°F 1981 | 32°F 1979 | 41% | 0% |
| Apr 30 | 68°F | 45°F | 84°F 1970 | 32°F 1958 | 41% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (EDT).
- April 1
- sunrise 7:29 AM, sunset 8:08 PM
- April 30
- sunrise 6:47 AM, sunset 8:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00123091 (Franklin Wwtp), public domain. Records: NOAA GHCN-Daily, station USC00124272, 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.