May weather forecastGustave, SD
May
Weather in May
May, the last month of the spring in Gustave, is an enjoyable month, with an average temperature varying between 45.9°F (7.7°C) and 64°F (17.8°C).Temperature
Noticing a change, the average high-temperature during May moves from April's fresh 52.9°F (11.6°C) to an enjoyable 64°F (17.8°C). Nighttime temperatures in May average to a frosty 45.9°F (7.7°C).Humidity
In May, the average relative humidity in Gustave is 62%.Rainfall
The month with the most rainfall in Gustave, South Dakota, is May, when the rain falls for 15.3 days and typically aggregates up to 2.68" (68mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Gustave. During 1.6 snowfall days, in May, Gustave aggregates 1.5" (38mm) of snow. Throughout the year, there are 62.2 snowfall days, and 22.95" (583mm) of snow is accumulated.Daylight
In Gustave, the average length of the day in May is 14h and 54min.On the first day of the month, sunrise is at 5:43 am and sunset at 8:02 pm. On the last day of May, in Gustave, sunrise is at 5:11 am and sunset at 8:36 pm MDT.
Sunshine
In Gustave, the average sunshine in May is 9.5h.UV index
In Gustave, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 5 in May translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Gustave, 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
Gustave, 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
Gustave, 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
Gustave, 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
Gustave, 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
Gustave, 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
Gustave, 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
Gustave, 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
Gustave, SD
- Average daylight in May: 14h and 54min
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 30min
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
Gustave, 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
Gustave, 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
Gustave, 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
Gustave, 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).
