May weather forecastAshton, SD
May
Weather in May
May, the last month of the spring in Ashton, is an enjoyable month, 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
Ashton in May experiences an increase in the average high-temperature, moving from April's refreshing 55.4°F (13°C) to a comfortable 67.6°F (19.8°C). Ashton's May nights cool down to an average low-temperature of 48.9°F (9.4°C).Humidity
In Ashton, the average relative humidity in May is 67%.Rainfall
In May, the rain falls for 13.3 days. Throughout May, 2.4" (61mm) of precipitation is accumulated. In Ashton, during the entire year, the rain falls for 97.6 days and collects up to 17.83" (453mm) of precipitation.Snowfall
May through September are months without snowfall in Ashton, South Dakota.Daylight
In Ashton, the average length of the day in May is 14h and 52min.On the first day of the month, sunrise is at 6:21 am and sunset at 8:40 pm. On the last day of May, sunrise is at 5:50 am and sunset at 9:13 pm CDT.
Sunshine
In May, the average sunshine is 9.1h.UV index
In May, the average daily maximum UV index in Ashton, South Dakota, is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 5 in May leads to these guidelines:
Heed the precautions - It is counselled to guard against solar damage. To avoid the Sun's strongest rays, limit exposure around the mid-day period. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Ashton, 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
Ashton, 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
Ashton, 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
Ashton, 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
Ashton, 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
Ashton, 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
Ashton, 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
Ashton, 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
Ashton, 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 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
Ashton, 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
Ashton, 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
Ashton, 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
Ashton, 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).
