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 refreshing 63.1°F (17.3°C) in April to a pleasant 72.5°F (22.5°C). Throughout May nights, River Mills registers an average low-temperature of 55.2°F (12.9°C).Humidity
The months with the highest humidity in River Mills are May and October, with an average relative humidity of 77%.Rainfall
In River Mills, in May, during 18.2 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In River Mills, during the entire year, the rain falls for 165.5 days and collects up to 31.65" (804mm) of precipitation.Snowfall
In River Mills, snow does not fall in May through October.Daylight
The average length of the day in May in River Mills is 14h and 21min.On the first day of May, sunrise is at 6:07 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 5:42 am and sunset at 8:27 pm EDT.
Sunshine
The average sunshine in May is 8.9h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: In May, the maximum UV index of 6 suggests this advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What is the usual temperature for River Mills in May?
What is the most humid month in River Mills?
What is the average humidity in May in River Mills?
How much does it rain in River Mills in May?
When it does not snow in River Mills?
Does it snow in River Mills in May?
How many hours of daylight does River Mills have in May?
When are sunrise and sunset in May in River Mills?
How many hours of sunshine does River Mills have in May?
When is the highest UV index in River Mills?
What is the UV index reading in May in River Mills?
Average temperature in May
River Mills, MD
- Average high temperature in May: 72.5°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 (38.1°F).
- Average low temperature in May: 55.2°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 (26.2°F).
Average pressure in May
River Mills, 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
River Mills, MD
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in May
River Mills, MD
- Average humidity in May: 77%
The months with the highest relative humidity are May and October (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in May
River Mills, MD
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in May
River Mills, MD
- Average rainfall days in May: 18.2 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in May
River Mills, MD
- Average snowfall in May: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
River Mills, MD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (4.9 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
River Mills, 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 30min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in May
River Mills, MD
- Average sunshine days in May: 10.4 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in May
River Mills, 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
River Mills, MD
- Average cloud cover in May: 44
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in May
River Mills, 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).
River Mills, Maryland, USA
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