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 transition to May introduces an increase in the average high-temperature, shifting from a refreshing 60.3°F (15.7°C) in April to a pleasant 70.3°F (21.3°C). Nighttime temperature in Mortonville dips to a mean of 52.7°F (11.5°C) during May.Humidity
The months with the highest humidity are May and October, with an average relative humidity of 81%.Rainfall
In Mortonville, in May, it is raining for 15.9 days, with typically 1.85" (47mm) of accumulated precipitation. Throughout the year, there are 138.3 rainfall days, and 19.76" (502mm) of precipitation is accumulated.Snowfall
Months with snowfall in Mortonville are January through May, October through December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Mortonville aggregates 0.12" (3mm) of snow. In Mortonville, during the entire year, snow falls for 19.6 days and aggregates up to 7.64" (194mm) of snow.Daylight
In Mortonville, the average length of the day in May is 14h and 24min.On the first day of the month, sunrise is at 6:02 am and sunset at 7:58 pm. On the last day of May, in Mortonville, sunrise is at 5:36 am and sunset at 8:25 pm EDT.
Sunshine
The average sunshine in May is 8.1h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Mortonville, Pennsylvania. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 6 in May leads to these recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
What is the usual temperature for Mortonville in May?
What is the most humid month in Mortonville?
What is the average humidity in May in Mortonville?
How much does it rain in Mortonville in May?
What is the last month it snows in Mortonville?
How many hours of daylight does Mortonville have in May?
When is the sunrise / sunset in May in Mortonville?
How long on average sun shines in May in Mortonville?
What are the months with the highest UV index in Mortonville?
How high is the UV index in May in Mortonville?
Average temperature in May
Mortonville, PA
- Average high temperature in May: 70.3°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in May: 52.7°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in May
Mortonville, 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
Mortonville, PA
- Average wind speed in May: 6.6mph
The windiest months (with the highest average wind speed) are January, February and March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Mortonville, PA
- Average humidity in May: 81%
The months with the highest relative humidity are May and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Mortonville, PA
- Average rainfall in May: 1.85"
The wettest month (with the highest rainfall) is August (2.72").
The driest month (with the least rainfall) is February (1.14").
Average rainfall days in May
Mortonville, PA
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.4 days).
Average snowfall in May
Mortonville, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Mortonville, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Mortonville, PA
- Average daylight in May: 14h 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 May: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in May
Mortonville, PA
- Average sunshine days in May: 13 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in May
Mortonville, PA
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (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
Mortonville, PA
- Average cloud cover in May: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in May
Mortonville, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Mortonville, Pennsylvania, USA
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