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
Saint Charles's transition into May is marked by a temperature shift, moving from a moderate 57.2°F (14°C) in April to an enjoyable 67.5°F (19.7°C). In May, Saint Charles's temperature tends to fall to an average low of 50.4°F (10.2°C) during the night.Humidity
In Saint Charles, South Dakota, the average relative humidity in May is 69%.Rainfall
The month with the most rainfall in Saint Charles is May, when the rain falls for 17.1 days and typically aggregates up to 3.03" (77mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Saint Charles, South Dakota. May is the last month it regularly snows. During 0.3 snowfall days, in May, Saint Charles aggregates 0.12" (3mm) of snow. In Saint Charles, South Dakota, during the entire year, snow falls for 33.1 days and aggregates up to 14.29" (363mm) of snow.Daylight
The average length of the day in May in Saint Charles is 14h and 41min.On the first day of May, sunrise is at 6:28 am and sunset at 8:38 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 9:08 pm CDT.
Sunshine
In May, the average sunshine is 8.9h.UV index
The average daily maximum UV index in May in Saint Charles is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: A typical high UV index of 5 in May suggests the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Saint Charles in May?
What is the average humidity in May in Saint Charles?
What is the rainiest month in Saint Charles?
How much does it rain in Saint Charles in May?
What is the last month it snows in Saint Charles?
What is the average length of the day in May in Saint Charles?
What time are sunrise and sunset in May in Saint Charles?
How many hours of sunshine does Saint Charles have in May?
What is the UV index intensity in May in Saint Charles?
Average temperature in May
Saint Charles, SD
- Average high temperature in May: 67.5°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in May: 50.4°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in May
Saint Charles, SD
- Average pressure in May: 29.91"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in May
Saint Charles, SD
- Average wind speed in May: 10.7mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is July (9.3mph).
Average humidity in May
Saint Charles, SD
- Average humidity in May: 69%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (61%).
Average rainfall in May
Saint Charles, SD
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in May
Saint Charles, SD
- Average rainfall days in May: 17.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (1.6 days).
Average snowfall in May
Saint Charles, SD
- Average snowfall in May: 0.12"
The month with the highest snowfall is December (3.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Saint Charles, SD
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint Charles, SD
- Average daylight in May: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in May: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in May
Saint Charles, SD
- Average sunshine days in May: 11.6 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (9.6 days).
Average UV index in May
Saint Charles, 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, February, November and December (UV index 2).
Average cloud cover in May
Saint Charles, SD
- Average cloud cover in May: 40
The month with the most cloud cover is January (Cloud cover 49).
The months with the least cloud cover are July, August and September (Cloud cover 25).
Average visibility in May
Saint Charles, 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).
Saint Charles, South Dakota, USA
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