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
Tri Mills sees an increase in average high-temperatures during April, moving from a frosty 44.4°F (6.9°C) in March to a mild 56.5°F (13.6°C). Tri Mills experiences a mean temperature of 38.3°F (3.5°C) during April nights.Humidity
The least humid month is April, with an average relative humidity of 77%.Rainfall
The wettest months are April and May, with an average 2.99" (76mm) of rainfall.Snowfall
January through May, October through December are months with snowfall. In Tri Mills, in April, during 1.8 snowfall days, 0.35" (9mm) of snow is typically accumulated. Throughout the year, there are 47.6 snowfall days, and 22.91" (582mm) of snow is accumulated.Daylight
In Tri Mills, the average length of the day in April is 13h and 21min.On the first day of April, sunrise is at 6:47 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:03 am and sunset at 8:02 pm EDT.
Sunshine
The average sunshine in April is 7.6h.UV index
The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In April, the maximum UV index of 3 suggests these recommendations:
Act with care - Obligation to protect against skin and eye damage is highlighted. When the Sun is at its strongest around midday, find shade and limit exposure. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the least humid month?
What is the average humidity in April?
What is the wettest month?
How much does it rain in April?
How much does it snow in April?
How many hours of daylight does Tri Mills have in April?
When is the sunrise / sunset in April in Tri Mills?
How many hours of sunshine does Tri Mills have in April?
How high is the UV index in April?
Average temperature in April
Tri Mills, PA
- Average high temperature in April: 56.5°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in April: 38.3°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in April
Tri Mills, PA
- Average pressure in April: 29.98"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
Tri Mills, PA
- Average wind speed in April: 8.1mph
The windiest months (with the highest average wind speed) are March and April (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Tri Mills, PA
- Average humidity in April: 77%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in April
Tri Mills, PA
- Average rainfall in April: 2.99"
The wettest months (with the highest rainfall) are April and May (2.99").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in April
Tri Mills, PA
- Average rainfall days in April: 17.1 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in April
Tri Mills, PA
- Average snowfall in April: 0.35"
The month with the highest snowfall is January (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Tri Mills, PA
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Tri Mills, PA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in April
Tri Mills, PA
- Average sunshine days in April: 11.1 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in April
Tri Mills, PA
- Average UV index in April: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Tri Mills, PA
- Average cloud cover in April: 50
The months with the most cloud cover are February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in April
Tri Mills, PA
- Average visibility in April: 6mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Tri Mills, Pennsylvania, USA
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