May weather forecastFrankfort, SD
May
Weather in May
The last month of the spring, May, is a refreshing month in Frankfort, South Dakota, with temperature in the range of an average high of 67.6°F (19.8°C) and an average low of 48.9°F (9.4°C).Temperature
With the onset of May, Frankfort's weather sees a temperature rise, transitioning from a mild 55.4°F (13°C) in April to an enjoyable 67.6°F (19.8°C). During May, the average low-temperature is recorded at a chilly 48.9°F (9.4°C).Humidity
In May, the average relative humidity is 67%.Rainfall
In Frankfort, South Dakota, in May, it is raining for 13.3 days, with typically 2.4" (61mm) of accumulated precipitation. In Frankfort, during the entire year, the rain falls for 97.6 days and collects up to 17.83" (453mm) of precipitation.Snowfall
In Frankfort, snow does not fall in May through September.Daylight
The average length of the day in May in Frankfort is 14h and 52min.On the first day of the month, sunrise is at 6:21 am and sunset at 8:39 pm. On the last day of May, sunrise is at 5:50 am and sunset at 9:11 pm CDT.
Sunshine
In May, the average sunshine is 9.1h.UV index
In Frankfort, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 5 during May translates into the following directions:
Undertake precautions - Obligation exists to protect against skin and eye damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Frankfort, SD
- Average high temperature in May: 67.6°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in May: 48.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in May
Frankfort, 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 (29.84"Hg).
Average wind speed in May
Frankfort, SD
- Average wind speed in May: 9.7mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in May
Frankfort, SD
- Average humidity in May: 67%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).
Average rainfall in May
Frankfort, SD
- Average rainfall in May: 2.4"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in May
Frankfort, SD
- Average rainfall days in May: 13.3 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in May
Frankfort, SD
- Average snowfall in May: 0"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Frankfort, SD
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Frankfort, SD
- Average daylight in May: 14h and 54min
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: 9h and 6min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in May
Frankfort, SD
- Average sunshine days in May: 15.2 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in May
Frankfort, 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 and February (UV index 1).
Average cloud cover in May
Frankfort, SD
- Average cloud cover in May: 37
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 22).
Average visibility in May
Frankfort, 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).
