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
With the onset of April, the average high-temperature slightly shifts from March's frosty 48.7°F (9.3°C) to a refreshing 61.2°F (16.2°C). Chatham, in April, observes a steady average low-temperature of 43.9°F (6.6°C).Humidity
March and April, with an average relative humidity of 75%, are the least humid months.Rainfall
In Chatham, Pennsylvania, during April, the rain falls for 11.6 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 126.3 rainfall days, and 14.25" (362mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In Chatham, in April, during 0.3 snowfall days, 0.16" (4mm) of snow is typically accumulated. In Chatham, during the entire year, snow falls for 15.4 days and aggregates up to 4.33" (110mm) of snow.Daylight
In April, the average length of the day is 13h and 17min.On the first day of the month, sunrise is at 6:45 am and sunset at 7:27 pm. On the last day of April, in Chatham, sunrise is at 6:03 am and sunset at 7:57 pm EDT.
Sunshine
In Chatham, the average sunshine in April is 8.5h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 4 in April transforms into this advice:
Take precautions - Protection against skin and eye damage is obliged. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. 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
What are the temperatures in April?
What is the least humid month?
What is the average humidity in April?
How much does it rain in April?
How many days does it snow in April?
How many hours of daylight does Chatham have in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
What is the UV index reading in April in Chatham?
Average temperature in April
Chatham, PA
- Average high temperature in April: 61.2°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in April: 43.9°F
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in April
Chatham, PA
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Chatham, PA
- Average wind speed in April: 8.6mph
The windiest months (with the highest average wind speed) are February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in April
Chatham, PA
- Average humidity in April: 75%
The months with the highest relative humidity are February, May, September, October and December (79%).
The months with the lowest relative humidity are March and April (75%).
Average rainfall in April
Chatham, PA
- Average rainfall in April: 1.02"
The wettest month (with the highest rainfall) is August (1.93").
The driest months (with the least rainfall) are January, September and November (0.87").
Average rainfall days in April
Chatham, PA
- Average rainfall days in April: 11.6 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in April
Chatham, PA
- Average snowfall in April: 0.16"
The month with the highest snowfall is March (1.26").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in April
Chatham, PA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is January (5.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Chatham, PA
- 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: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in April
Chatham, PA
- Average sunshine days in April: 16.2 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in April
Chatham, PA
- Average UV index in April: 4
The months with the highest UV index are May, June, July 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
Chatham, PA
- Average cloud cover in April: 44
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in April
Chatham, PA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Chatham, Pennsylvania, USA
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