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
Ferney's transition into May is marked by a temperature shift, moving from a cool 54.1°F (12.3°C) in April to a refreshing 66.7°F (19.3°C). During the nights in May, the temperature in Ferney, South Dakota, averages to a chilly 48.2°F (9°C).Humidity
In May, the average relative humidity in Ferney is 66%.Rainfall
In Ferney, during May, the rain falls for 13 days and regularly aggregates up to 2.32" (59mm) of precipitation. In Ferney, during the entire year, the rain falls for 97.2 days and collects up to 18.35" (466mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Ferney aggregates 0.08" (2mm) of snow. In Ferney, during the entire year, snow falls for 54.8 days and aggregates up to 19.13" (486mm) of snow.Daylight
The average length of the day in May in Ferney is 14h and 55min.On the first day of May in Ferney, sunrise is at 6:19 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 9:12 pm CDT.
Sunshine
In May, the average sunshine is 9h.UV index
In Ferney, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 5 in May translates into this advice:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature in Ferney?
What is the average humidity in May in Ferney?
How much does it rain in Ferney in May?
What is the last month it snows in Ferney?
What is the average length of the day in May in Ferney?
When is the sunrise / sunset in May in Ferney?
How many hours of sunshine does Ferney have in May?
How high is the UV index in May in Ferney?
Average temperature in May
Ferney, SD
- Average high temperature in May: 66.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in May: 48.2°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure in May
Ferney, SD
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Ferney, SD
- Average wind speed in May: 9.7mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in May
Ferney, SD
- Average humidity in May: 66%
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).
Average rainfall in May
Ferney, SD
- Average rainfall in May: 2.32"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in May
Ferney, SD
- Average rainfall days in May: 13 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).
Average snowfall in May
Ferney, SD
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Ferney, SD
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Ferney, 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 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in May
Ferney, SD
- Average sunshine days in May: 15.7 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).
Average UV index in May
Ferney, 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 January, February and November (UV index 1).
Average cloud cover in May
Ferney, SD
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in May
Ferney, SD
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Ferney, South Dakota, USA
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