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 beginning of May signals a rise in the average high-temperature, moving from a mild 58.1°F (14.5°C) in April to a pleasant 69.4°F (20.8°C). During the month of May, the nighttime temperature in Northumberland falls to an average of 49.3°F (9.6°C).Humidity
The average relative humidity in May is 80%.Rainfall
In May, the rain falls for 14.7 days. Throughout May, 1.42" (36mm) of precipitation is accumulated. Throughout the year, there are 133.4 rainfall days, and 13.15" (334mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Northumberland. May is the last month it regularly snows in Northumberland. During 0.2 snowfall days, in May, Northumberland aggregates 0.04" (1mm) of snow. Throughout the year, in Northumberland, there are 32.1 snowfall days, and 4.76" (121mm) of snow is accumulated.Daylight
The average length of the day in May in Northumberland is 14h and 29min.On the first day of May, sunrise is at 6:04 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:32 pm EDT.
Sunshine
In Northumberland, the average sunshine in May is 8.4h.UV index
In May, the average daily maximum UV index in Northumberland is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Act with care - The need to guard against sun damage is communicated. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the average May temperature in Northumberland?
What is the average humidity in May in Northumberland?
How much does it rain in Northumberland in May?
What is the last month it snows in Northumberland?
What is the average length of the day in May in Northumberland?
When are sunrise and sunset in May in Northumberland?
How many hours of sunshine does Northumberland have in May?
What is the UV index reading in May in Northumberland?
Average temperature in May
Northumberland, PA
- Average high temperature in May: 69.4°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in May: 49.3°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in May
Northumberland, PA
- Average pressure in May: 30.01"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 May
Northumberland, PA
- Average wind speed in May: 6.2mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in May
Northumberland, PA
- Average humidity in May: 80%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in May
Northumberland, PA
- Average rainfall in May: 1.42"
The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in May
Northumberland, PA
- Average rainfall days in May: 14.7 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in May
Northumberland, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Northumberland, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Northumberland, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 12min).
Average sunshine days in May
Northumberland, PA
- Average sunshine days in May: 13.7 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (13.4 days).
Average UV index in May
Northumberland, PA
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Northumberland, PA
- Average cloud cover in May: 47
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Northumberland, PA
- Average visibility in May: 5mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).
Northumberland, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
