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 brings a change in Plana's weather, with average high-temperatures moving from April's fresh 54.1°F (12.3°C) to an enjoyable 66.7°F (19.3°C). The temperature in Plana lowers to an average of 48.2°F (9°C) during May nights.Humidity
The average relative humidity in May is 66%.Rainfall
In May, in Plana, South Dakota, the rain falls for 13 days. Throughout May, 2.32" (59mm) of precipitation is accumulated. Throughout the year, in Plana, South Dakota, there are 97.2 rainfall days, and 18.35" (466mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Plana aggregates 0.08" (2mm) of snow. Throughout the year, there are 54.8 snowfall days, and 19.13" (486mm) of snow is accumulated.Daylight
In Plana, the average length of the day in May is 14h and 56min.On the first day of May in Plana, sunrise is at 6:19 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 9:14 pm CDT.
Sunshine
The average sunshine in May in Plana is 9h.UV index
In May, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In May, an average UV index of 5 transforms into the following instructions:
Take necessary precautions - Suggestions to elude sunburn are provided. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Plana in May?
What is the average humidity in May in Plana?
How many days does it rain in May in Plana?
What is the last month it snows in Plana?
What is the average length of the day in May in Plana?
What time are sunrise and sunset in May in Plana?
How many hours of sunshine does Plana have in May?
What is the UV index intensity in May in Plana?
Average temperature in May
Plana, 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
Plana, 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
Plana, 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
Plana, 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
Plana, 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
Plana, 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
Plana, 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
Plana, 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
Plana, 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
Plana, 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
Plana, 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
Plana, 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
Plana, 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).
Plana, South Dakota, USA
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