May weather forecastBrookhaven, PA
May
Weather in May
The last month of the spring, May, is an agreeable month in Brookhaven, Pennsylvania, with an average temperature fluctuating between 55°F (12.8°C) and 72°F (22.2°C).Temperature
In Brookhaven, the onset of May comes with an increased average high-temperature, moving from April's comfortable 61.5°F (16.4°C) to an agreeable 72°F (22.2°C). Brookhaven records an average nighttime low of 55°F (12.8°C) in May.Humidity
The average relative humidity in May is 76%.Rainfall
In Brookhaven, during May, the rain falls for 16.3 days and regularly aggregates up to 2.32" (59mm) of precipitation. Throughout the year, there are 148.4 rainfall days, and 25.94" (659mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.1 snowfall days, in May, Brookhaven aggregates 0.16" (4mm) of snow. In Brookhaven, during the entire year, snow falls for 12.6 days and aggregates up to 7.28" (185mm) of snow.Daylight
In Brookhaven, the average length of the day in May is 14h and 24min.On the first day of May, sunrise is at 6:00 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 5:35 am and sunset at 8:23 pm EDT.
Sunshine
The average sunshine in May is 8.7h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Brookhaven. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Brookhaven, PA
- Average high temperature in May: 72°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in May
Brookhaven, PA
- Average pressure in May: 30.01"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Brookhaven, PA
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Brookhaven, PA
- Average humidity in May: 76%
The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in May
Brookhaven, PA
- Average rainfall in May: 2.32"
The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.61").
Average rainfall days in May
Brookhaven, PA
- Average rainfall days in May: 16.3 days
The month with the highest number of rainy days is July (17 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in May
Brookhaven, PA
- Average snowfall in May: 0.16"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Brookhaven, PA
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Brookhaven, 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 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in May
Brookhaven, PA
- Average sunshine days in May: 12.7 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in May
Brookhaven, 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, November and December (UV index 2).
Average cloud cover in May
Brookhaven, PA
- Average cloud cover in May: 45
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Brookhaven, PA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
