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
With the transition into May, North Spearfish experiences an increase in average high-temperatures, moving up from a cool 51.4°F (10.8°C) in April to a comfortable 61.9°F (16.6°C). North Spearfish's average low-temperature is measured at a chilly 43.2°F (6.2°C) during May.Humidity
The average relative humidity in May is 66%.Rainfall
May is the month with the most rainfall. Rain falls for 15.6 days and accumulates 2.32" (59mm) of precipitation.Snowfall
Months with snowfall in North Spearfish are January through May, September through December. May is the last month it regularly snows. During 2.2 snowfall days, in May, North Spearfish aggregates 2.64" (67mm) of snow. In North Spearfish, during the entire year, snow falls for 56.8 days and aggregates up to 36.3" (922mm) of snow.Daylight
In North Spearfish, the average length of the day in May is 14h and 49min.On the first day of the month, sunrise is at 5:44 am and sunset at 8:00 pm. On the last day of May, sunrise is at 5:13 am and sunset at 8:32 pm MDT.
Sunshine
In North Spearfish, South Dakota, the average sunshine in May is 10h.UV index
The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 5 suggests these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
What is the rainiest month?
How many days does it rain in May?
What is the last month it snows?
How many hours of daylight does North Spearfish have in May?
What time are sunrise and sunset in May?
How many hours of sunshine does North Spearfish have in May?
What is the UV index reading in May?
Average temperature in May
North Spearfish, SD
- Average high temperature in May: 61.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is December (30.9°F).
- Average low temperature in May: 43.2°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is February (16.2°F).
Average pressure in May
North Spearfish, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
North Spearfish, SD
- Average wind speed in May: 9.1mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (8mph).
Average humidity in May
North Spearfish, SD
- Average humidity in May: 66%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (49%).
Average rainfall in May
North Spearfish, SD
- Average rainfall in May: 2.32"
The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in May
North Spearfish, SD
- Average rainfall days in May: 15.6 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in May
North Spearfish, SD
- Average snowfall in May: 2.64"
The month with the highest snowfall is April (7.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days in May
North Spearfish, SD
- Average snowfall days in May: 2.2 days
The month with the highest number of snowfall days is February (11.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in May /
Average sunshine in May
North Spearfish, SD
- Average daylight in May: 14h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 42min).
Average sunshine days in May
North Spearfish, SD
- Average sunshine days in May: 12.7 days
The month with the most sunshine days is November (20.3 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in May
North Spearfish, SD
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, April, November and December (UV index 2).
Average cloud cover in May
North Spearfish, SD
- Average cloud cover in May: 34
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in May
North Spearfish, 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).
North Spearfish, South Dakota, USA
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