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 start of April signals an increase in the average high-temperature, moving from a chilly 48.7°F (9.3°C) in March to a comfortable 61.2°F (16.2°C). Throughout the month of April, the average temperature in Chatham dips to a frosty 43.9°F (6.6°C) at night.Humidity
The months with the lowest humidity are March and April, with an average relative humidity of 75%.Rainfall
In Chatham, in April, during 11.6 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In Chatham, during the entire year, the rain falls for 126.3 days and collects up to 14.25" (362mm) of precipitation.Snowfall
January through May, November and December are months with snowfall in Chatham. In Chatham, in April, snow falls for 0.3 days, with typically accumulated 0.16" (4mm) of snow. Throughout the year, in Chatham, Pennsylvania, there are 15.4 snowfall days, and 4.33" (110mm) of snow is accumulated.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, Pennsylvania, the average sunshine in April is 8.5h.UV index
In April, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 4 during April leads to these instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
What is the usual temperature for Chatham in April?
What are the least humid months in Chatham?
What is the average humidity in April in Chatham?
How much does it rain in Chatham in April?
How much does it snow in Chatham in April?
What is the average length of the day in April in Chatham?
When are sunrise and sunset in April in Chatham?
How long on average sun shines in April in Chatham?
How high is the UV index 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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