Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The shift into May is accompanied by a temperature increase, with the average high-temperature rising from a comfortable 62.6°F (17°C) in April to a pleasant 71.6°F (22°C). Riderwood's nighttime temperature in May falls to an average of 55°F (12.8°C).Humidity
With an average relative humidity of 79%, May is the most humid month.Rainfall
In Riderwood, Maryland, during May, the rain falls for 11.1 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 102.3 rainfall days, and 9.25" (235mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Riderwood, Maryland, the average length of the day in May is 14h and 22min.On the first day of the month, sunrise is at 6:06 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:41 am and sunset at 8:27 pm EDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
The months with the highest UV index in Riderwood are May through August, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: In May, a daily maximum UV index of 6 leads to the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Frequently asked questions
What is the usual temperature for Riderwood in May?
What is the most humid month in Riderwood?
What is the average humidity in May in Riderwood?
How much does it rain in Riderwood in May?
When it does not snow in Riderwood?
Does it snow in Riderwood in May?
What is the average length of the day in May in Riderwood?
When is the sunrise / sunset in May in Riderwood?
How many hours of sunshine does Riderwood have in May?
What is the month with the highest UV index in Riderwood?
What is the UV index reading in May in Riderwood?
Average temperature in May
Riderwood, MD
- Average high temperature in May: 71.6°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in May: 55°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in May
Riderwood, 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 (29.94"Hg).
Average wind speed in May
Riderwood, MD
- Average wind speed in May: 7mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Riderwood, MD
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
Riderwood, MD
- Average rainfall in May: 0.79"
The wettest month (with the highest rainfall) is August (1.46").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Riderwood, MD
- Average rainfall days in May: 11.1 days
The month with the highest number of rainy days is July (12.6 days).
The month with the least rainy days is January (5.2 days).
Average snowfall in May
Riderwood, MD
- Average snowfall in May: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Riderwood, MD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.8 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
Riderwood, MD
- Average daylight in May: 14h and 2min
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 24min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in May
Riderwood, MD
- Average sunshine days in May: 17.1 days
The month with the most sunshine days is November (22.9 days).
The month with the least sunshine days is July (15.2 days).
Average UV index in May
Riderwood, 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, February, November and December (UV index 2).
Average cloud cover in May
Riderwood, 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 30).
Average visibility in May
Riderwood, MD
- 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).
Riderwood, Maryland, USA
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