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
May's onset witnesses a shift in the average high-temperature, moving from a mild 60.3°F (15.7°C) in April to a pleasant 70.2°F (21.2°C). Mountville encounters a steady low-temperature average of 52.3°F (11.3°C) throughout the month of May.Humidity
With an average relative humidity of 81%, May is the most humid month.Rainfall
In Mountville, in May, during 14 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Mountville, during the entire year, the rain falls for 125.9 days and collects up to 15.08" (383mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Mountville aggregates 0.04" (1mm) of snow. Throughout the year, there are 16.4 snowfall days, and 5.04" (128mm) of snow is accumulated.Daylight
The average length of the day in May is 14h and 25min.On the first day of the month, sunrise is at 6:04 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:38 am and sunset at 8:28 pm EDT.
Sunshine
In Mountville, the average sunshine in May is 8.3h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 5 during May translates into these guidelines:
Take necessary precautions - Suggestions to elude sunburn are provided. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Mountville in May?
What is the most humid month?
What is the average humidity in May in Mountville?
How much does it rain in May?
What is the last month it snows?
How many hours of daylight does Mountville have in May?
When is the sunrise / sunset in May?
How long on average sun shines in May?
How high is the UV index in May?
Average temperature in May
Mountville, PA
- Average high temperature in May: 70.2°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in May: 52.3°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in May
Mountville, 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
Mountville, PA
- Average wind speed in May: 6.8mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in May
Mountville, PA
- Average humidity in May: 81%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in May
Mountville, PA
- Average rainfall in May: 1.38"
The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is February (0.83").
Average rainfall days in May
Mountville, PA
- Average rainfall days in May: 14 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in May
Mountville, PA
- Average snowfall in May: 0.04"
The month with the highest snowfall is March (1.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Mountville, PA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Mountville, 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 2min
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
Mountville, PA
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in May
Mountville, PA
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Mountville, PA
- Average cloud cover in May: 47
The months with the most cloud cover are February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Mountville, PA
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).
Mountville, Pennsylvania, USA
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