May weather forecastBirmingham, PA
May
Weather in May
May, the last month of the spring in Birmingham, is a pleasant month, with temperature in the range of an average high of 68.7°F (20.4°C) and an average low of 48.6°F (9.2°C).Temperature
In Birmingham, the onset of May comes with an increased average high-temperature, moving from April's moderate 57.4°F (14.1°C) to an agreeable 68.7°F (20.4°C). In May, Birmingham's temperature tends to fall to an average low of 48.6°F (9.2°C) during the night.Humidity
The average relative humidity in May is 79%.Rainfall
May is the month with the most rainfall. Rain falls for 18.9 days and accumulates 3.39" (86mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Birmingham aggregates 0.12" (3mm) of snow. Throughout the year, in Birmingham, there are 58.3 snowfall days, and 23.7" (602mm) of snow is accumulated.Daylight
In May, the average length of the day is 14h and 28min.On the first day of the month, sunrise is at 6:10 am and sunset at 8:09 pm. On the last day of May, sunrise is at 5:44 am and sunset at 8:37 pm EDT.
Sunshine
In Birmingham, the average sunshine in May is 8.4h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 5 in May suggests the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Birmingham, PA
- Average high temperature in May: 68.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in May: 48.6°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in May
Birmingham, 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 (29.95"Hg).
Average wind speed in May
Birmingham, PA
- Average wind speed in May: 6.5mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in May
Birmingham, PA
- Average humidity in May: 79%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, June and July (77%).
Average rainfall in May
Birmingham, PA
- Average rainfall in May: 3.39"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in May
Birmingham, PA
- Average rainfall days in May: 18.9 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (10.5 days).
Average snowfall in May
Birmingham, PA
- Average snowfall in May: 0.12"
The month with the highest snowfall is January (6.73").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Birmingham, PA
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Birmingham, PA
- Average daylight in May: 14h and 30min
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 18min).
- Average sunshine in May: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Birmingham, PA
- Average sunshine days in May: 10 days
The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in May
Birmingham, 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
Birmingham, PA
- Average cloud cover in May: 49
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in May
Birmingham, 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).





