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
May's arrival brings a temperature shift, moving from a cool 52.5°F (11.4°C) in April to an enjoyable 64.8°F (18.2°C). In Saint Charles, the expected average low-temperature for May is a chilly 48°F (8.9°C).Humidity
In Saint Charles, the average relative humidity in May is 80%.Rainfall
In Saint Charles, in May, during 16.9 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Saint Charles, Minnesota, during the entire year, the rain falls for 122.7 days and collects up to 24.06" (611mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, in May, Saint Charles aggregates 0.67" (17mm) of snow. Throughout the year, there are 59.2 snowfall days, and 21.65" (550mm) of snow is accumulated.Daylight
In Saint Charles, the average length of the day in May is 14h and 46min.On the first day of the month, sunrise is at 5:58 am and sunset at 8:11 pm. On the last day of May, sunrise is at 5:28 am and sunset at 8:43 pm CDT.
Sunshine
In Saint Charles, the average sunshine in May is 8.1h.UV index
The average daily maximum UV index in May in Saint Charles is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 5 in May leads to these guidelines:
Undertake precautions - Guarding against sun damage is counselled. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
What are May temperatures in Saint Charles?
What is the average humidity in May in Saint Charles?
How much does it rain in Saint Charles in May?
What is the last month it snows in Saint Charles?
How many hours of daylight does Saint Charles have in May?
When is the sunrise / sunset in May in Saint Charles?
How long on average sun shines in May in Saint Charles?
How high is the UV index in May in Saint Charles?
Average temperature in May
Saint Charles, MN
- Average high temperature in May: 64.8°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in May: 48°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in May
Saint Charles, MN
- Average pressure in May: 29.94"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in May
Saint Charles, MN
- Average wind speed in May: 8.8mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in May
Saint Charles, MN
- Average humidity in May: 80%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (75%).
Average rainfall in May
Saint Charles, MN
- Average rainfall in May: 3.15"
The wettest month (with the highest rainfall) is June (4.33").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in May
Saint Charles, MN
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is June (18.2 days).
The month with the least rainy days is February (1.9 days).
Average snowfall in May
Saint Charles, MN
- Average snowfall in May: 0.67"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Saint Charles, MN
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint Charles, MN
- Average daylight in May: 14h and 5min
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 1min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in May
Saint Charles, MN
- Average sunshine days in May: 12.6 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in May
Saint Charles, MN
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Saint Charles, MN
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in May
Saint Charles, MN
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July and December (5mi).
Saint Charles, Minnesota, USA
Weather forecast for your location
2. Allow the app to use your location
