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
As April arrives, a rise in the average high-temperature is observed, moving from a frosty 46.9°F (8.3°C) in March to a mild 59.4°F (15.2°C). During April nights, Rockhill witnesses a consistent average temperature of 39.7°F (4.3°C).Humidity
In April, the average relative humidity is 76%.Rainfall
In April, the rain falls for 16.5 days. Throughout April, 2.87" (73mm) of precipitation is accumulated. Throughout the year, there are 164.3 rainfall days, and 28.19" (716mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. April is the last month it regularly snows in Rockhill. During 1.3 snowfall days, in April, Rockhill aggregates 0.39" (10mm) of snow. In Rockhill, during the entire year, snow falls for 40.6 days and aggregates up to 17.91" (455mm) of snow.Daylight
In Rockhill, the average length of the day in April is 13h and 18min.On the first day of April, sunrise is at 6:54 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:06 pm EDT.
Sunshine
In April, the average sunshine in Rockhill, Pennsylvania, is 8.1h.UV index
In April, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In April, an average UV index of 3 transforms into the following instructions:
Undertake protective steps - Preventing sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the usual temperature for Rockhill in April?
What is the average humidity in April in Rockhill?
How much does it rain in Rockhill in April?
What is the last month it snows in Rockhill?
How many hours of daylight does Rockhill have in April?
When are sunrise and sunset in April in Rockhill?
How many hours of sunshine does Rockhill have in April?
What is the UV index intensity in April in Rockhill?
Average temperature in April
Rockhill, PA
- Average high temperature in April: 59.4°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in April: 39.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in April
Rockhill, PA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in April
Rockhill, PA
- Average wind speed in April: 7.4mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in April
Rockhill, PA
- Average humidity in April: 76%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is July (75%).
Average rainfall in April
Rockhill, PA
- Average rainfall in April: 2.87"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in April
Rockhill, PA
- Average rainfall days in April: 16.5 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in April
Rockhill, PA
- Average snowfall in April: 0.39"
The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Rockhill, PA
- Average snowfall days in April: 1.3 days
The month with the highest number of snowfall days is January (12.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Rockhill, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in April
Rockhill, PA
- Average sunshine days in April: 11.5 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in April
Rockhill, PA
- Average UV index in April: 3
The months with the highest UV index are May and June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in April
Rockhill, PA
- Average cloud cover in April: 47
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in April
Rockhill, 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).
Rockhill, Pennsylvania, USA
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