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
An increase in the average high-temperature marks May, moving from April's refreshing 55.4°F (13°C) to a comfortable 67.3°F (19.6°C). During May, Hartford experiences an average low-temperature of 50°F (10°C) at night.Humidity
In Hartford, the average relative humidity in May is 69%.Rainfall
In Hartford, in May, during 17.1 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. In Hartford, during the entire year, the rain falls for 118.3 days and collects up to 22.76" (578mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows in Hartford. During 0.2 snowfall days, in May, Hartford aggregates 0.24" (6mm) of snow. In Hartford, during the entire year, snow falls for 45.4 days and aggregates up to 19.33" (491mm) of snow.Daylight
In May, the average length of the day is 14h and 44min.On the first day of May in Hartford, South Dakota, sunrise is at 6:18 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 9:01 pm CDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
The average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 5 in May transforms into the following instructions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are May temperatures?
What is the average humidity in May?
How much does it rain in May?
What is the last month it snows?
What is the average length of the day in May?
When is the sunrise / sunset in May?
How many hours of sunshine does Hartford have in May?
How high is the UV index in May?
Average temperature in May
Hartford, SD
- Average high temperature in May: 67.3°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in May: 50°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 (9.3°F).
Average pressure in May
Hartford, SD
- Average pressure in May: 29.92"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Hartford, SD
- Average wind speed in May: 9.9mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).
Average humidity in May
Hartford, SD
- Average humidity in May: 69%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).
Average rainfall in May
Hartford, SD
- Average rainfall in May: 3.19"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in May
Hartford, SD
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (2.6 days).
Average snowfall in May
Hartford, SD
- Average snowfall in May: 0.24"
The month with the highest snowfall is December (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Hartford, SD
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Hartford, SD
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
Hartford, SD
- Average sunshine days in May: 12.1 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in May
Hartford, SD
- Average UV index in May: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Hartford, SD
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in May
Hartford, 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).
Hartford, South Dakota, USA
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