May weather forecastSaint Michael, PA
May
Weather in May
The last month of the spring, May, is a comfortable month in Saint Michael, Pennsylvania, with an average temperature fluctuating between 67.8°F (19.9°C) and 48.9°F (9.4°C).Temperature
May witnesses an increase in the average high-temperature, moving from a moderate 56.8°F (13.8°C) in April to an enjoyable 67.8°F (19.9°C). Saint Michael's average low-temperature in the month of May is recorded at a frosty 48.9°F (9.4°C).Humidity
In Saint Michael, the average relative humidity in May is 80%.Rainfall
In Saint Michael, during May, the rain falls for 13.8 days and regularly aggregates up to 1.65" (42mm) of precipitation. Throughout the year, there are 128.8 rainfall days, and 22.95" (583mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.6 snowfall days, in May, Saint Michael aggregates 0.16" (4mm) of snow. In Saint Michael, during the entire year, snow falls for 58.2 days and aggregates up to 31.81" (808mm) of snow.Daylight
The average length of the day in May is 14h and 26min.On the first day of the month, sunrise is at 6:13 am and sunset at 8:10 pm. On the last day of May, in Saint Michael, Pennsylvania, sunrise is at 5:47 am and sunset at 8:38 pm EDT.
Sunshine
In May, the average sunshine is 8.5h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 5 in May translates into this advice:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Saint Michael, PA
- Average high temperature in May: 67.8°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in May
Saint Michael, PA
- Average pressure in May: 30"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in May
Saint Michael, PA
- Average wind speed in May: 7.1mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Saint Michael, PA
- Average humidity in May: 80%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall in May
Saint Michael, PA
- Average rainfall in May: 1.65"
The wettest month (with the highest rainfall) is February (2.68").
The driest month (with the least rainfall) is August (1.1").
Average rainfall days in May
Saint Michael, PA
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is April (14.6 days).
The month with the least rainy days is November (7 days).
Average snowfall in May
Saint Michael, PA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (7.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Saint Michael, PA
- Average snowfall days in May: 0.6 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint Michael, PA
- Average daylight in May: 14h and 24min
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 30min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in May
Saint Michael, PA
- Average sunshine days in May: 15.7 days
The month with the most sunshine days is October (20.2 days).
The month with the least sunshine days is January (8.3 days).
Average UV index in May
Saint Michael, PA
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in May
Saint Michael, PA
- Average cloud cover in May: 49
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in May
Saint Michael, PA
- Average visibility in May: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).





