Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The arrival of May brings a change in New Castle's weather, with average high-temperatures moving from April's moderate 58.6°F (14.8°C) to a pleasant 70.7°F (21.5°C). New Castle observes an average low-temperature of 49.6°F (9.8°C) during May nights.Humidity
April through August, with an average relative humidity of 78%, are the least humid months in New Castle.Rainfall
In New Castle, during May, the rain falls for 19.3 days and regularly aggregates up to 3.39" (86mm) of precipitation. Throughout the year, in New Castle, Pennsylvania, there are 177.6 rainfall days, and 34.92" (887mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in New Castle. During 0.3 snowfall days, in May, New Castle aggregates 0.08" (2mm) of snow. In New Castle, during the entire year, snow falls for 68.2 days and aggregates up to 25.2" (640mm) of snow.Daylight
In May, the average length of the day in New Castle, Pennsylvania, is 14h and 29min.On the first day of May, sunrise is at 6:18 am and sunset at 8:18 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:46 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
The average daily maximum UV index in May in New Castle is 5. 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 May, the maximum UV index of 5 translates into these guidelines:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What is the temperature in May in New Castle?
What is the least humid month in New Castle?
What is the average humidity in May in New Castle?
How many days does it rain in May in New Castle?
What is the last month it snows in New Castle?
What is the average length of the day in May in New Castle?
When is the sunrise / sunset in May in New Castle?
How long on average sun shines in May in New Castle?
What is the UV index intensity in May in New Castle?
Average temperature in May
New Castle, PA
- Average high temperature in May: 70.7°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 May: 49.6°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 May
New Castle, PA
- Average pressure in May: 29.99"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 May
New Castle, PA
- Average wind speed in May: 6.4mph
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 May
New Castle, PA
- Average humidity in May: 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 May
New Castle, PA
- Average rainfall in May: 3.39"
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 May
New Castle, PA
- Average rainfall days in May: 19.3 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 May
New Castle, PA
- Average snowfall in May: 0.08"
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 May
New Castle, PA
- Average snowfall days in May: 0.3 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 May /
Average sunshine in May
New Castle, PA
- Average daylight in May: 14h and 3min
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 May: 8h and 3min
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 May
New Castle, PA
- Average sunshine days in May: 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 May
New Castle, PA
- Average UV index in May: 5
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 May
New Castle, PA
- Average cloud cover in May: 47
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 May
New Castle, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February and December (4mi).
New Castle, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
