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 commencement of April sees a shift in the average high-temperature, moving from a wintry 41.9°F (5.5°C) in March to a cool 54.1°F (12.3°C). Riggs temperatures generally rest at a low of 35.6°F (2°C) during the April nights.Humidity
The months with the lowest humidity are April, June and July, with an average relative humidity of 78%.Rainfall
In April, the rain falls for 16.8 days. Throughout April, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 164.7 rainfall days, and 24.09" (612mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Riggs, in April, snow falls for 3.8 days, with typically accumulated 1.14" (29mm) of snow. Throughout the year, there are 67.5 snowfall days, and 20.75" (527mm) of snow is accumulated.Daylight
In April, the average length of the day is 13h and 22min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:32 pm. On the last day of April, sunrise is at 6:02 am and sunset at 8:04 pm EDT.
Sunshine
The average sunshine in April is 7h.UV index
In Riggs, Pennsylvania, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A daily high UV index of 3 in April leads to these guidelines:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What are the least humid months?
What is the average humidity in April?
How many days does it rain in April?
How many days does it snow in April?
What is the average length of the day in April?
When are sunrise and sunset in April?
How many hours of sunshine does Riggs have in April?
How high is the UV index in April?
Average temperature in April
Riggs, PA
- Average high temperature in April: 54.1°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in April: 35.6°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in April
Riggs, PA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Riggs, PA
- Average wind speed in April: 8.3mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in April
Riggs, PA
- Average humidity in April: 78%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in April
Riggs, PA
- Average rainfall in April: 2.36"
The wettest month (with the highest rainfall) is May (2.44").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in April
Riggs, PA
- Average rainfall days in April: 16.8 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in April
Riggs, PA
- Average snowfall in April: 1.14"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Riggs, PA
- Average snowfall days in April: 3.8 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Riggs, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 12min).
Average sunshine days in April
Riggs, PA
- Average sunshine days in April: 9.4 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in April
Riggs, PA
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in April
Riggs, PA
- Average cloud cover in April: 54
The months with the most cloud cover are January, February and December (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in April
Riggs, PA
- Average visibility in April: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Riggs, Pennsylvania, USA
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