Climate and monthly weather forecastSaint Charles, SD
Climate and monthly weather forecast
Weather in January
January, the same as December, in Saint Charles, South Dakota, is a freezing cold winter month, with an average temperature varying between 17.2°F (-8.2°C) and 29.7°F (-1.3°C). In Saint Charles, South Dakota, the month of January registers the lowest temperatures, averaging 29.7°F (-1.3°C) at the peak and 17.2°F (-8.2°C) at the lowest. Weather in January »Weather in February
February, the last month of the winter in Saint Charles, is an icy month, with an average temperature fluctuating between 19.4°F (-7°C) and 33.1°F (0.6°C). February's average high-temperature is a cold 33.1°F (0.6°C), maintaining a close comparison with January's 29.7°F (-1.3°C). Weather in February »Weather in March
The first month of the spring, March, is a chilly month in Saint Charles, South Dakota, with an average temperature fluctuating between 31.6°F (-0.2°C) and 47.5°F (8.6°C). The onset of March brings a clear temperature shift, with the average high-temperature escalating from an icy 33.1°F (0.6°C) in February to a frosty 47.5°F (8.6°C). Weather in March »Weather in April
April in Saint Charles, South Dakota, is a mild spring month, with an average temperature varying between 40.3°F (4.6°C) and 57.2°F (14°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from a frosty 47.5°F (8.6°C) to a mild 57.2°F (14°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Saint Charles, South Dakota, with an average temperature ranging between max 67.5°F (19.7°C) and min 50.4°F (10.2°C). 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). Weather in May »Weather in June
June, the first month of the summer in Saint Charles, is a warm month, with an average temperature ranging between min 61.2°F (16.2°C) and max 78.4°F (25.8°C). June brings a temperature change, with average high-temperatures moving from May's comfortable 67.5°F (19.7°C) to a warm 78.4°F (25.8°C). Weather in June »Weather in July
July, like June, in Saint Charles, South Dakota, is another warm summer month, with temperature in the range of an average low of 65.1°F (18.4°C) and an average high of 85.1°F (29.5°C). In Saint Charles, the month of July is known for its highest average temperatures, reaching a high of 85.1°F (29.5°C) and a low of 65.1°F (18.4°C). The average heat index in July is computed to be a tropical 91.4°F (33°C). Weather in July »Weather in August
August, the last month of the summer in Saint Charles, is also a moderately hot month, with an average temperature ranging between min 62.6°F (17°C) and max 83.5°F (28.6°C). The commencement of August brings an average high-temperature of a still warm 83.5°F (28.6°C), marking an inconsequential divergence from July. Weather in August »Weather in September
September, the first month of the autumn in Saint Charles, is also a moderately hot month, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 55.6°F (13.1°C). In September, the average high-temperature marginally drops from a warm 83.5°F (28.6°C) in August to a still moderately hot 75.4°F (24.1°C). Weather in September »Weather in October
October, the same as September, in Saint Charles, South Dakota, is another refreshing autumn month, with an average temperature varying between 42.8°F (6°C) and 58.8°F (14.9°C). Saint Charles's transition into October is marked by a clear temperature shift, receding from a warm 75.4°F (24.1°C) in September to a refreshing 58.8°F (14.9°C). Weather in October »Weather in November
November, the last month of the autumn in Saint Charles, is also a frosty month, with temperature in the range of an average low of 32.2°F (0.1°C) and an average high of 46.4°F (8°C). The onset of November is marked by a decrease in temperature, transitioning from a refreshing 58.8°F (14.9°C) in October to a frosty 46.4°F (8°C). Weather in November »Weather in December
December, the first month of the winter in Saint Charles, is still a freezing cold month, with an average temperature varying between 31.5°F (-0.3°C) and 20.7°F (-6.3°C). December's arrival sees a clear drop in the average high-temperature, decreasing from November's frosty 46.4°F (8°C) to a subzero cold 31.5°F (-0.3°C). Weather in December »Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Saint Charles's January weather reaches an average high of 29.7°F (-1.3°C) and an average low of 17.2°F (-8.2°C), making it the coldest month.
The most humid month is January, with an average relative humidity of 81%.
January is the month with the least rainfall. Rain falls for 1.6 days and accumulates 0.43" (11mm) of precipitation.
In Saint Charles, South Dakota, during the entire year, the rain falls for 109.3 days and collects up to 19.41" (493mm) of precipitation.
January through May, October through December are months with snowfall in Saint Charles.
Throughout the year, in Saint Charles, South Dakota, there are 33.1 snowfall days, and 14.29" (363mm) of snow is accumulated.
The month with the least sunshine in Saint Charles is January, with an average of 4.9h of sunshine.
The months with the lowest UV index in Saint Charles are January, February, November and December, with an average maximum UV index of 2.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Saint Charles, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
May is the month with the most rainfall in Saint Charles, South Dakota. Rain falls for 17.1 days and accumulates 3.03" (77mm) of precipitation.
June through September are months without snowfall in Saint Charles.
June has the longest days of the year, with an average of 15h and 18min of daylight.
The months with the highest UV index in Saint Charles, South Dakota, are June through August, with an average maximum UV index of 6.
The warmest time of the year in Saint Charles is July, with temperatures averaging a high of 85.1°F (29.5°C) and a low of 65.1°F (18.4°C).
With an average of 10.9h of sunshine, July has the most sunshine of the year in Saint Charles, South Dakota.
October is the least humid month in Saint Charles, with an average relative humidity of 61%.
December is the month with the most snowfall in Saint Charles, South Dakota. Snow falls for 5.8 days and accumulates 3.66" (93mm) of snow.
The month with the shortest days in Saint Charles is December, with an average of 9h and 6min of daylight.
Average temperature
Saint Charles, SD
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).
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
Saint Charles, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.92"Hg - Average pressure in August:
29.92"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.14"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
Saint Charles, SD
- Average wind speed in January:
11.7mph - Average wind speed in February:
11.4mph - Average wind speed in March:
11.7mph - Average wind speed in April:
12.2mph - Average wind speed in May:
10.7mph - Average wind speed in June:
9.9mph
- Average wind speed in July:
9.3mph - Average wind speed in August:
9.4mph - Average wind speed in September:
10.5mph - Average wind speed in October:
11.6mph - Average wind speed in November:
11.4mph - Average wind speed in December:
11.6mph
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
Saint Charles, SD
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (61%).
Average rainfall
Saint Charles, SD
- Average rainfall in January:
0.43" - Average rainfall in February:
0.51" - Average rainfall in March:
1.26" - Average rainfall in April:
2.2" - Average rainfall in May:
3.03" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.6" - Average rainfall in August:
2.17" - Average rainfall in September:
1.46" - Average rainfall in October:
1.42" - Average rainfall in November:
0.55" - Average rainfall in December:
0.98"
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
Saint Charles, SD
- Average rainfall days in January:
1.6 days - Average rainfall days in February:
2.1 days - Average rainfall days in March:
7.6 days - Average rainfall days in April:
11.6 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
16.4 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
13.4 days - Average rainfall days in September:
10.8 days - Average rainfall days in October:
7.8 days - Average rainfall days in November:
3.6 days - Average rainfall days in December:
2 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
Saint Charles, SD
- Average snowfall in January:
2.05" - Average snowfall in February:
2.6" - Average snowfall in March:
2.24" - Average snowfall in April:
1.26" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
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
Saint Charles, SD
- Average snowfall days in January:
6.1 days - Average snowfall days in February:
7.8 days - Average snowfall days in March:
6.2 days - Average snowfall days in April:
2.8 days - Average snowfall days in May:
0.3 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
1.5 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
5.8 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 / Average sunshine
Saint Charles, SD
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
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 January:
4h and 54min - Average sunshine in February:
5h and 54min - Average sunshine in March:
6h and 48min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 54min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 54min - Average sunshine in August:
10h and 30min - Average sunshine in September:
8h and 42min - Average sunshine in October:
6h and 42min - Average sunshine in November:
5h and 54min - Average sunshine in December:
5h and 6min
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
Saint Charles, SD
- Average sunshine days in January:
22.4 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
17.6 days - Average sunshine days in April:
13.9 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
12.8 days - Average sunshine days in August:
14.8 days - Average sunshine days in September:
16.7 days - Average sunshine days in October:
20.6 days - Average sunshine days in November:
23.4 days - Average sunshine days in December:
22.1 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
Saint Charles, SD
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
Saint Charles, SD
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
Saint Charles, SD
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).
