May weather forecastLangley Park, MD
May
Weather in May
The last month of the spring, May, is a warm month in Langley Park, Maryland, with temperature in the range of an average high of 74.3°F (23.5°C) and an average low of 56.5°F (13.6°C).Temperature
May brings a rise in the average high-temperature, transitioning from April's refreshing 64.9°F (18.3°C) to a warm 74.3°F (23.5°C). An average low-temperature of 56.5°F (13.6°C) marks the month of May.Humidity
The months with the highest humidity are May, October and December, with an average relative humidity of 75%.Rainfall
In Langley Park, during May, the rain falls for 17.7 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Langley Park, Maryland, during the entire year, the rain falls for 154.8 days and collects up to 30.28" (769mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In Langley Park, the average length of the day in May is 14h and 19min.On the first day of May, sunrise is at 6:08 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 8:27 pm EDT.
Sunshine
The average sunshine in May is 8.6h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 6 in May translates into the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Langley Park, MD
- Average high temperature in May: 74.3°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in May: 56.5°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure in May
Langley Park, MD
- Average pressure in May: 30.01"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
Langley Park, MD
- Average wind speed in May: 6.6mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in May
Langley Park, MD
- Average humidity in May: 75%
The months with the highest relative humidity are May, October and December (75%).
The month with the lowest relative humidity is July (69%).
Average rainfall in May
Langley Park, MD
- Average rainfall in May: 2.87"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in May
Langley Park, MD
- Average rainfall days in May: 17.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in May
Langley Park, MD
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Langley Park, MD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Langley Park, MD
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in May
Langley Park, MD
- Average sunshine days in May: 12 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (12 days).
Average UV index in May
Langley Park, MD
- 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, November and December (UV index 2).
Average cloud cover in May
Langley Park, MD
- Average cloud cover in May: 45
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in May
Langley Park, MD
- Average visibility in May: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
