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 from April to May sees an increase in the average high-temperature, transitioning from a cool 52.9°F (11.6°C) to an enjoyable 64°F (17.8°C). Reva observes an average nighttime temperature of 45.9°F (7.7°C) during May.Humidity
The average relative humidity in May in Reva is 62%.Rainfall
The month with the most rainfall is May, when the rain falls for 15.3 days and typically aggregates up to 2.68" (68mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 1.6 snowfall days, in May, Reva aggregates 1.5" (38mm) of snow. In Reva, South Dakota, during the entire year, snow falls for 62.2 days and aggregates up to 22.95" (583mm) of snow.Daylight
In Reva, the average length of the day in May is 14h and 56min.On the first day of the month, sunrise is at 5:38 am and sunset at 7:59 pm. On the last day of May, in Reva, sunrise is at 5:06 am and sunset at 8:33 pm MDT.
Sunshine
In Reva, the average sunshine in May is 9.5h.UV index
In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 in May translates into this advice:
Take necessary precautions - Defending against sun damage is advocated. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
What is the wettest month?
How many days does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
What time are sunrise and sunset in May?
How many hours of sunshine does Reva have in May?
What is the UV index intensity in May?
Average temperature in May
Reva, SD
- Average high temperature in May: 64°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in May: 45.9°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in May
Reva, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Reva, SD
- Average wind speed in May: 11.1mph
The windiest months (with the highest average wind speed) are January and October (11.9mph).
The calmest month (with the lowest average wind speed) is July (9.8mph).
Average humidity in May
Reva, SD
- Average humidity in May: 62%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (47%).
Average rainfall in May
Reva, SD
- Average rainfall in May: 2.68"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in May
Reva, SD
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in May
Reva, SD
- Average snowfall in May: 1.5"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Reva, SD
- Average snowfall days in May: 1.6 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Reva, SD
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in May: 9h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in May
Reva, SD
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in May
Reva, SD
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in May
Reva, SD
- Average cloud cover in May: 37
The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in May
Reva, SD
- 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).
Reva, South Dakota, USA
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