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
A shift in the average high-temperature is noticeable in April, changing from a frosty 44.2°F (6.8°C) in March to a mild 56.3°F (13.5°C). Castle Rocks reports an average nighttime low-temperature of 37.2°F (2.9°C) in April.Humidity
The months with the lowest humidity in Castle Rocks, Pennsylvania, are April and July, with an average relative humidity of 77%.Rainfall
April is the month with the most rainfall. Rain falls for 18.4 days and accumulates 3.58" (91mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Castle Rocks. In Castle Rocks, during April, snow falls for 2.3 days and regularly aggregates up to 0.59" (15mm) of snow. In Castle Rocks, during the entire year, snow falls for 55.8 days and aggregates up to 25.63" (651mm) of snow.Daylight
In Castle Rocks, the average length of the day in April is 13h and 20min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:34 pm. On the last day of April, sunrise is at 6:06 am and sunset at 8:05 pm EDT.
Sunshine
In Castle Rocks, the average sunshine in April is 7.6h.UV index
In April, the average daily maximum UV index in Castle Rocks is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In April, the maximum UV index of 3 transforms into these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Frequently asked questions
What are April temperatures in Castle Rocks?
What is the least humid month in Castle Rocks?
What is the average humidity in April in Castle Rocks?
What is the wettest month in Castle Rocks?
How much does it rain in Castle Rocks in April?
How many days does it snow in April in Castle Rocks?
How many hours of daylight does Castle Rocks have in April?
When are sunrise and sunset in April in Castle Rocks?
How long on average sun shines in April in Castle Rocks?
What is the UV index reading in April in Castle Rocks?
Average temperature in April
Castle Rocks, PA
- Average high temperature in April: 56.3°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in April: 37.2°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in April
Castle Rocks, 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
Castle Rocks, PA
- Average wind speed in April: 7.5mph
The windiest months (with the highest average wind speed) are January and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in April
Castle Rocks, PA
- Average humidity in April: 77%
The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in April
Castle Rocks, PA
- Average rainfall in April: 3.58"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in April
Castle Rocks, PA
- Average rainfall days in April: 18.4 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (10.8 days).
Average snowfall in April
Castle Rocks, PA
- Average snowfall in April: 0.59"
The month with the highest snowfall is February (7.05").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Castle Rocks, PA
- Average snowfall days in April: 2.3 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Castle Rocks, 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 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in April
Castle Rocks, PA
- Average sunshine days in April: 10.2 days
The month with the most sunshine days is September (15 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in April
Castle Rocks, PA
- Average UV index in April: 3
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in April
Castle Rocks, PA
- Average cloud cover in April: 51
The months with the most cloud cover are January, February and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in April
Castle Rocks, PA
- Average visibility in April: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Castle Rocks, Pennsylvania, USA
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