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 arrival of May introduces a minor uplift in high-temperatures, adjusting from a comfortable 62.1°F (16.7°C) in April to a pleasant 70.7°F (21.5°C). Throughout the month of May, Rio Vista sees a steady low-temperature average of 57.9°F (14.4°C).Humidity
With an average relative humidity of 79%, May is the most humid month in Rio Vista.Rainfall
In Rio Vista, in May, during 17.2 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, there are 157 rainfall days, and 32.91" (836mm) of precipitation is accumulated.Snowfall
In Rio Vista, snow does not fall in May through October.Daylight
In Rio Vista, the average length of the day in May is 14h and 19min.On the first day of May in Rio Vista, Maryland, sunrise is at 6:06 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 5:41 am and sunset at 8:23 pm EDT.
Sunshine
The average sunshine in May is 9.3h.UV index
The months with the highest UV index in Rio Vista are May through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the average person.Note: In May, the maximum UV index of 6 transforms into these recommendations:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
What are May temperatures in Rio Vista?
What is the most humid month in Rio Vista?
What is the average humidity in May in Rio Vista?
How much does it rain in Rio Vista in May?
When it does not snow in Rio Vista?
Does it snow in Rio Vista in May?
How many hours of daylight does Rio Vista have in May?
When is the sunrise / sunset in May in Rio Vista?
How many hours of sunshine does Rio Vista have in May?
What are the months with the highest UV index in Rio Vista?
What is the UV index reading in May in Rio Vista?
Average temperature in May
Rio Vista, MD
- Average high temperature in May: 70.7°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in May: 57.9°F
The month with the highest average low temperature is July (71.8°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in May
Rio Vista, MD
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in May
Rio Vista, MD
- Average wind speed in May: 8.3mph
The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in May
Rio Vista, MD
- Average humidity in May: 79%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in May
Rio Vista, MD
- Average rainfall in May: 2.64"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in May
Rio Vista, MD
- Average rainfall days in May: 17.2 days
The month with the highest number of rainy days is May (17.2 days).
The months with the least rainy days are January and November (8.8 days).
Average snowfall in May
Rio Vista, MD
- Average snowfall in May: 0"
The month with the highest snowfall is March (1.22").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in May
Rio Vista, MD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.2 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
Rio Vista, MD
- Average daylight in May: 14h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in May
Rio Vista, MD
- Average sunshine days in May: 11.8 days
The month with the most sunshine days is November (19.7 days).
The months with the least sunshine days are May and August (11.8 days).
Average UV index in May
Rio Vista, 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 and December (UV index 2).
Average cloud cover in May
Rio Vista, MD
- Average cloud cover in May: 40
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in May
Rio Vista, 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).
Rio Vista, Maryland, USA
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