Louisville, KY weather in April
Louisville is mild in April, with frequent rain: highs average 70°F and nights drop to about 49°F. Expect about 12 wet days. A good month for most outdoor plans.
- Normal high
- 70°F
- Normal low
- 49°F
- Wet days
- 12
- 4.8 in total
- Muggy days
- 0
- dew point 65°F+
How April changes from start to finish
| April 1 | April 30 | |
|---|---|---|
| Normal high | 65°F | 74°F |
| Normal low | 43°F | 54°F |
| Chance of a wet day | 39% | 42% |
| Sunrise / sunset | 7:27 am / 8:05 pm | 6:47 am / 8:32 pm |
| Daylight | 12.6 h | 13.8 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical April day
- 6 am51°Fdew point 43°F
- 9 am56°Fdew point 44°F
- Noon63°Fdew point 44°F
- 3 pm66°Fdew point 44°F
- 6 pm65°Fdew point 43°F
- 9 pm60°Fdew point 44°F
NOAA hourly normals (local standard time) from Louisville Intl Airport (5 mi away); average wind 9 mph; clear or few clouds in 49% of daytime hours, mostly cloudy or overcast in 44%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F15 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow12 of 30
- Notable rainat least 0.10 in8 of 30
- Freezing nightslow 32°F or below1 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per April, counted from daily records for each year 1991-2020.
Rain and snow in April
Normal precipitation is 4.8 in; a dry April brings about 3.2 in and a wet one about 6.0 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more. Normal snowfall is 0.1 in.
How April varies from year to year
- Warmest April, 1991-20202017: average high 76°F
- Coolest April1997: average high 64°F
- Wettest April2011: 14.0 in
- Driest April2001: 1.0 in
- Highest reading90°F (April 10, 2011)
- Lowest reading25°F (April 7, 2007)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
April compared with March and May
| March | April | May | |
|---|---|---|---|
| Normal high | 58°F | 70°F | 78°F |
| Normal low | 39°F | 49°F | 59°F |
| Wet days | 12 | 12 | 13 |
| Comfortable days | 9 | 15 | 13 |
| Daylight | 12.0 h | 13.2 h | 14.3 h |
Highs change by +12°F from March and +8°F into May.
Nearby alternatives in April
- Warmer: Huntsville, AL243 mi · high 75°F · 10 wet days
- Cooler: Indianapolis, IN114 mi · high 64°F · 12 wet days
How Louisville ranks in April
- Normal high179th warmest of 378 cities; 2nd of 3 in Kentucky
- Wet days314th driest of 378
- Comfortable days79th most of 340
What to pack for Louisville in April
- A rain jacket or umbrella – rain on about 12 days
Heating and cooling
April has 222 heating degree days and 44 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How hot is Louisville in April?
The normal high is 70°F and the normal low is 49°F. From 1991 to 2020 the hottest April reading was 90°F (April 10, 2011).
Does it rain a lot in Louisville in April?
About 12 days in April have at least 0.01 in of precipitation, and the normal total is 4.8 in. The wettest April in 1991-2020 was in 2011 (14.0 in); the driest was in 2001 (1.0 in).
Does it snow in Louisville in April?
Yes. Normal snowfall in April is 0.1 in.
Is April a good time to visit Louisville?
April ranks 1st of 12 months on our comfort score for Louisville (69 out of 100). It has about 15 comfortable days. The best months are April, May and October.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Louisville Intl Airport (USW00093821), 5.0 mi WNW of the city center, 488 ft . NOAA normals and daily records, 1991-2020.
- Cloud cover: Louisville Bowman Fld (USW00013810), 4.3 mi N of the city center, 540 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Louisville Intl-Standiford Field Airport (724230-93821), 4.5 mi W of the city center, 480 ft . Hourly observations, 1991-2020.