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 average high-temperature increases in May, moving from a fresh 52.3°F (11.3°C) in April to a refreshing 64.9°F (18.3°C). Morristown, during the nights of May, experiences an average temperature drop to a frosty 46.2°F (7.9°C).Humidity
In Morristown, the average relative humidity in May is 62%.Rainfall
In Morristown, in May, during 13.8 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, in Morristown, there are 101.3 rainfall days, and 14.25" (362mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Morristown, South Dakota. May is the last month it regularly snows. During 1.4 snowfall days, in May, Morristown aggregates 1.34" (34mm) of snow. Throughout the year, in Morristown, South Dakota, there are 65.8 snowfall days, and 21.42" (544mm) of snow is accumulated.Daylight
In May, the average length of the day in Morristown is 14h and 58min.On the first day of May, sunrise is at 5:32 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 4:59 am and sunset at 8:29 pm MDT.
Sunshine
In May, the average sunshine in Morristown, South Dakota, is 9.6h.UV index
The average daily maximum UV index in May in Morristown is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 4 in May leads to these guidelines:
Put precautions into practice - Protective measures against sun-induced damage are advised. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Morristown?
What is the average humidity in May in Morristown?
How much does it rain in Morristown in May?
What is the last month it snows in Morristown?
How many hours of daylight does Morristown have in May?
When is the sunrise / sunset in May in Morristown?
How many hours of sunshine does Morristown have in May?
What is the UV index reading in May in Morristown?
Average temperature in May
Morristown, SD
- Average high temperature in May: 64.9°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 (25.2°F).
- Average low temperature in May: 46.2°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 (11.7°F).
Average pressure in May
Morristown, SD
- Average pressure in May: 29.92"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in May
Morristown, SD
- Average wind speed in May: 11mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in May
Morristown, SD
- Average humidity in May: 62%
The month with the highest relative humidity is January (85%).
The months with the lowest relative humidity are August and September (51%).
Average rainfall in May
Morristown, SD
- Average rainfall in May: 2.2"
The wettest month (with the highest rainfall) is June (2.28").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Morristown, SD
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is January (2.9 days).
Average snowfall in May
Morristown, SD
- Average snowfall in May: 1.34"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Morristown, SD
- Average snowfall days in May: 1.4 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Morristown, SD
- Average daylight in May: 15h and 0min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in May: 9h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Morristown, SD
- Average sunshine days in May: 13.7 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in May
Morristown, SD
- Average UV index in May: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in May
Morristown, SD
- Average cloud cover in May: 36
The months with the most cloud cover are January and February (Cloud cover 52).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in May
Morristown, 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).
Morristown, South Dakota, USA
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