April weather forecastHarlan, KY
April
Weather in April
April is a comfortable spring month in Harlan, Kentucky, with an average temperature fluctuating between 65.7°F (18.7°C) and 45.5°F (7.5°C).Temperature
With the onset of April, Harlan's average high-temperature sees a rise, moving from March's fresh 54.3°F (12.4°C) to an enjoyable 65.7°F (18.7°C). Harlan experiences an average low-temperature reading of 45.5°F (7.5°C) throughout April.Humidity
April, June, August and November, with an average relative humidity of 77%, are the least humid months.Rainfall
In Harlan, in April, it is raining for 17.1 days, with typically 3.5" (89mm) of accumulated precipitation. Throughout the year, there are 190.4 rainfall days, and 40.28" (1023mm) of precipitation is accumulated.Snowfall
Months with snowfall in Harlan, Kentucky, are January through April, October through December. April is the last month it regularly snows in Harlan. During 0.8 snowfall days, in April, Harlan aggregates 0.51" (13mm) of snow. In Harlan, during the entire year, snow falls for 34 days and aggregates up to 15.71" (399mm) of snow.Daylight
In Harlan, the average length of the day in April is 13h and 10min.On the first day of the month, sunrise is at 7:17 am and sunset at 7:56 pm. On the last day of April, sunrise is at 6:39 am and sunset at 8:21 pm EDT.
Sunshine
In Harlan, the average sunshine in April is 8.2h.UV index
In April, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 5 in April transforms into this advice:
Exercise prevention - Warding off sunburn is urged. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Harlan, KY
- Average high temperature in April: 65.7°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in April: 45.5°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in April
Harlan, KY
- Average pressure in April: 30"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in April
Harlan, KY
- Average wind speed in April: 6.6mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.8mph).
Average humidity in April
Harlan, KY
- Average humidity in April: 77%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April, June, August and November (77%).
Average rainfall in April
Harlan, KY
- Average rainfall in April: 3.5"
The wettest month (with the highest rainfall) is February (4.57").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in April
Harlan, KY
- Average rainfall days in April: 17.1 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (11.5 days).
Average snowfall in April
Harlan, KY
- Average snowfall in April: 0.51"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Harlan, KY
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Harlan, KY
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in April: 8h and 12min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in April
Harlan, KY
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is October (15.8 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in April
Harlan, KY
- Average UV index in April: 5
The months with the highest UV index are May, June and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in April
Harlan, KY
- Average cloud cover in April: 41
The months with the most cloud cover are January and February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in April
Harlan, KY
- Average visibility in April: 6mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
