May weather forecastMahaffey, PA
May
Weather in May
The last month of the spring, May, is a pleasant month in Mahaffey, Pennsylvania, with an average temperature varying between 48°F (8.9°C) and 68.4°F (20.2°C).Temperature
Entering May, Mahaffey sees a temperature rise, with the average high-temperature advancing from April's refreshing 56.1°F (13.4°C) to an agreeable 68.4°F (20.2°C). In May, Mahaffey reports a consistent average low-temperature of 48°F (8.9°C) during the nights.Humidity
In May, the average relative humidity is 79%.Rainfall
The month with the most rainfall is May, when the rain falls for 17.4 days and typically aggregates up to 2.28" (58mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.5 snowfall days, in May, Mahaffey aggregates 0.28" (7mm) of snow. In Mahaffey, Pennsylvania, during the entire year, snow falls for 46.2 days and aggregates up to 14.45" (367mm) of snow.Daylight
In May, the average length of the day is 14h and 29min.On the first day of the month, sunrise is at 6:12 am and sunset at 8:11 pm. On the last day of May, sunrise is at 5:45 am and sunset at 8:39 pm EDT.
Sunshine
In May, the average sunshine is 8h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mahaffey, PA
- Average high temperature in May: 68.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in May: 48°F
The month with the highest average low temperature is July (57.9°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in May
Mahaffey, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Mahaffey, PA
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Mahaffey, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is July (77%).
Average rainfall in May
Mahaffey, PA
- Average rainfall in May: 2.28"
The wettest month (with the highest rainfall) is May (2.28").
The driest months (with the least rainfall) are January and November (1.06").
Average rainfall days in May
Mahaffey, PA
- Average rainfall days in May: 17.4 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in May
Mahaffey, PA
- Average snowfall in May: 0.28"
The month with the highest snowfall is February (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Mahaffey, PA
- Average snowfall days in May: 0.5 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Mahaffey, PA
- Average daylight in May: 14h and 30min
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 0min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in May
Mahaffey, PA
- Average sunshine days in May: 10.7 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in May
Mahaffey, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Mahaffey, PA
- Average cloud cover in May: 51
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in May
Mahaffey, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
