Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The shift into April is characterized by a rise in the average high-temperature, transitioning from March's frosty 49.1°F (9.5°C) to an enjoyable 60.8°F (16°C). Throughout the nights in April, Williamsport experiences an average low-temperature of 44.4°F (6.9°C).Humidity
In Williamsport, the average relative humidity in April is 76%.Rainfall
The month with the most rainfall in Williamsport is April, when the rain falls for 16.1 days and typically aggregates up to 3.39" (86mm) of precipitation.Snowfall
Months with snowfall in Williamsport are January through April, November and December. April is the last month it regularly snows in Williamsport, Indiana. During 1.2 snowfall days, in April, Williamsport aggregates 0.31" (8mm) of snow. Throughout the year, in Williamsport, there are 37.6 snowfall days, and 10.59" (269mm) of snow is accumulated.Daylight
In Williamsport, the average length of the day in April is 13h and 19min.On the first day of April, sunrise is at 7:31 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 8:43 pm EDT.
Sunshine
The average sunshine in April is 7h.UV index
In April, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In April, a daily UV index of 4 turns into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Williamsport?
What is the average humidity in April in Williamsport?
What is the rainiest month in Williamsport?
How much does it rain in Williamsport in April?
What is the last month it snows in Williamsport?
How many hours of daylight does Williamsport have in April?
When are sunrise and sunset in April in Williamsport?
How long on average sun shines in April in Williamsport?
How high is the UV index in April in Williamsport?
Average temperature in April
Williamsport, IN
- Average high temperature in April: 60.8°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (32°F).
- Average low temperature in April: 44.4°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in April
Williamsport, IN
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Williamsport, IN
- Average wind speed in April: 10.1mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in April
Williamsport, IN
- Average humidity in April: 76%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall in April
Williamsport, IN
- Average rainfall in April: 3.39"
The wettest month (with the highest rainfall) is April (3.39").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in April
Williamsport, IN
- Average rainfall days in April: 16.1 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in April
Williamsport, IN
- Average snowfall in April: 0.31"
The month with the highest snowfall is February (3.27").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Williamsport, IN
- Average snowfall days in April: 1.2 days
The month with the highest number of snowfall days is January (11 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
Williamsport, IN
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in April: 7h and 0min
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 6min).
Average sunshine days in April
Williamsport, IN
- Average sunshine days in April: 11.3 days
The month with the most sunshine days is November (17.8 days).
The month with the least sunshine days is July (9 days).
Average UV index in April
Williamsport, IN
- Average UV index in April: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Williamsport, IN
- Average cloud cover in April: 46
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are June and August (Cloud cover 32).
Average visibility in April
Williamsport, IN
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Williamsport, Indiana, USA
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