April weather forecastNew Castle, PA
April
Weather in April
April sees a significant shift in weather patterns in New Castle, marking the end of the long winter spell. The coldest temperatures increase by almost 10°F (-12.2°C) from 29.1°F (-1.6°C) in March to 39.2°F (4°C) in April. This month brings a surge in day length and sunlight exposure, uplifting the spirits of the city's inhabitants. April showers enhance the scenic beauty of the city, which comes alive under the warmer sun. Nevertheless, residents still need jackets to stay comfortable in the fluctuating weather.Temperature
New Castle's April weather shows an increase in high-temperatures, moving from March's frosty 46°F (7.8°C) to a mild 58.6°F (14.8°C). April brings with it a nighttime average temperature of 39.2°F (4°C).Humidity
The months with the lowest humidity are April through August, with an average relative humidity of 78%.Rainfall
In New Castle, in April, during 17.5 rainfall days, 3.54" (90mm) of precipitation is typically accumulated. Throughout the year, there are 177.6 rainfall days, and 34.92" (887mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In New Castle, Pennsylvania, in April, during 3.2 snowfall days, 1.02" (26mm) of snow is typically accumulated. Throughout the year, there are 68.2 snowfall days, and 25.2" (640mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 20min.On the first day of the month, sunrise is at 7:03 am and sunset at 7:46 pm. On the last day of April, sunrise is at 6:19 am and sunset at 8:17 pm EDT.
Sunshine
In New Castle, the average sunshine in April is 7.1h.UV index
In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In April, a daily maximum UV index of 3 leads to the following instructions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
New Castle, PA
- Average high temperature in April: 58.6°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 39.2°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in April
New Castle, PA
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
New Castle, PA
- Average wind speed in April: 7.7mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).
Average humidity in April
New Castle, PA
- Average humidity in April: 78%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, May, June, July and August (78%).
Average rainfall in April
New Castle, PA
- Average rainfall in April: 3.54"
The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in April
New Castle, PA
- Average rainfall days in April: 17.5 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in April
New Castle, PA
- Average snowfall in April: 1.02"
The month with the highest snowfall is January (6.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
New Castle, PA
- Average snowfall days in April: 3.2 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
New Castle, PA
- Average daylight in April: 13h and 18min
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 6min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in April
New Castle, PA
- Average sunshine days in April: 9.8 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is February (7 days).
Average UV index in April
New Castle, 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
New Castle, PA
- Average cloud cover in April: 52
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in April
New Castle, PA
- Average visibility in April: 6mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February and December (4mi).
