May weather forecastMarty, SD
May
Weather in May
May, the last month of the spring in Marty, is an agreeable month, with an average temperature varying between 50.4°F (10.2°C) and 68.5°F (20.3°C).Temperature
With the onset of May, Marty's weather sees a temperature rise, transitioning from a moderate 57.7°F (14.3°C) in April to a pleasant 68.5°F (20.3°C). An average low-temperature of 50.4°F (10.2°C) is recorded in the month of May.Humidity
In Marty, the average relative humidity in May is 69%.Rainfall
May is the month with the most rainfall. Rain falls for 15.3 days and accumulates 2.72" (69mm) of precipitation.Snowfall
In Marty, South Dakota, snow does not fall in May through September.Daylight
The average length of the day in May is 14h and 41min.On the first day of the month, sunrise is at 6:26 am and sunset at 8:35 pm. On the last day of May, sunrise is at 5:57 am and sunset at 9:05 pm CDT.
Sunshine
The average sunshine in May is 9h.UV index
In Marty, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 5 in May translates into the following instructions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Marty, SD
- Average high temperature in May: 68.5°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in May: 50.4°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in May
Marty, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Marty, SD
- Average wind speed in May: 9.6mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in May
Marty, SD
- Average humidity in May: 69%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).
Average rainfall in May
Marty, SD
- Average rainfall in May: 2.72"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").
Average rainfall days in May
Marty, 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 (2.9 days).
Average snowfall in May
Marty, SD
- Average snowfall in May: 0"
The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Marty, SD
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Marty, SD
- Average daylight in May: 14h and 42min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- 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: 4h and 42min).
Average sunshine days in May
Marty, SD
- Average sunshine days in May: 13.3 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in May
Marty, 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, November and December (UV index 2).
Average cloud cover in May
Marty, SD
- Average cloud cover in May: 39
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in May
Marty, 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).
