Climate and monthly weather forecastSherman, SD
Climate and monthly weather forecast
Weather in January
January, the same as December, in Sherman, South Dakota, is a freezing cold winter month, with temperature in the range of an average high of 22.3°F (-5.4°C) and an average low of 8.2°F (-13.2°C). January, marked by an average high-temperature of 22.3°F (-5.4°C) and a low-temperature of 8.2°F (-13.2°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Sherman, South Dakota, with an average temperature fluctuating between 25.9°F (-3.4°C) and 11.8°F (-11.2°C). Sherman indicates an average high-temperature of a still freezing cold 25.9°F (-3.4°C) in February, showing minor variation from January's 22.3°F (-5.4°C). Weather in February »Weather in March
March, the first month of the spring in Sherman, is an icy month, with temperature in the range of an average high of 41.5°F (5.3°C) and an average low of 27°F (-2.8°C). March signals a significant shift in the average high-temperature, soaring from February's subzero cold 25.9°F (-3.4°C) to a cold 41.5°F (5.3°C). Weather in March »Weather in April
April is a cool spring month in Sherman, South Dakota, with an average temperature varying between 54.5°F (12.5°C) and 37.9°F (3.3°C). As April sets, the average high-temperature shows an increase, moving up from a wintry 41.5°F (5.3°C) in March to a cool 54.5°F (12.5°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Sherman, South Dakota, with an average temperature fluctuating between 66.7°F (19.3°C) and 48.9°F (9.4°C). In Sherman, the average high-temperature in May increases from a fresh 54.5°F (12.5°C) in April to an enjoyable 66.7°F (19.3°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Sherman, South Dakota, with an average temperature ranging between min 59.4°F (15.2°C) and max 76.6°F (24.8°C). June's arrival sees a rise in the average high-temperature, jumping from May's refreshing 66.7°F (19.3°C) to a warm 76.6°F (24.8°C). Weather in June »Weather in July
July, like June, in Sherman, South Dakota, is another warm summer month, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 62.2°F (16.8°C). In Sherman, the peak average temperatures are observed in July, with a high of 81.9°F (27.7°C) and a low of 62.2°F (16.8°C). Throughout July, the heat index is evaluated at a tropical 87.8°F (31°C). Weather in July »Weather in August
August, the last month of the summer in Sherman, is also a moderately hot month, with an average temperature varying between 80.6°F (27°C) and 59.4°F (15.2°C). Sherman transitions into August recording an average high-temperature of a still warm 80.6°F (27°C), closely aligning with the preceding month's temperature. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Sherman, South Dakota, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 73.2°F (22.9°C). As September begins, there is a minor decrease in the average high-temperature, softly falling from a moderately hot 80.6°F (27°C) in August to an agreeable 73.2°F (22.9°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Sherman, South Dakota, with an average temperature fluctuating between 40.8°F (4.9°C) and 56.3°F (13.5°C). A notable decrease in the average high-temperature is observed during October, falling from a pleasant 73.2°F (22.9°C) in September to a moderate 56.3°F (13.5°C). Weather in October »Weather in November
November, the last month of the autumn in Sherman, is another cold month, with temperature in the range of an average low of 28°F (-2.2°C) and an average high of 42.3°F (5.7°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's moderate 56.3°F (13.5°C) to a cold 42.3°F (5.7°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Sherman, South Dakota, with an average temperature varying between 26.4°F (-3.1°C) and 14.9°F (-9.5°C). As Sherman transitions into December, a marked decrease in the average high-temperature is observed, dropping from a wintry 42.3°F (5.7°C) in November to a subzero cold 26.4°F (-3.1°C). Weather in December »Updated: Jun 21, 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
Sherman's January weather, with an average high temperature of 22.3°F (-5.4°C) and an average low temperature of 8.2°F (-13.2°C), tends to be the coldest of the year.
With an average relative humidity of 89%, January is the most humid month.
January is the month with the least rainfall. Rain falls for 3.3 days and accumulates 0.63" (16mm) of precipitation.
Throughout the year, there are 116.4 rainfall days, and 21.38" (543mm) of precipitation is accumulated.
Months with snowfall in Sherman are January through May, October through December.
In Sherman, during the entire year, snow falls for 45.6 days and aggregates up to 19.49" (495mm) of snow.
January has the least sunshine of the year, with an average of 4h of sunshine.
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Sherman.
The month with the most snowfall is February, when snow falls for 8.2 days and typically aggregates up to 4.29" (109mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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.
The month with the most rainfall is June, when the rain falls for 17.4 days and typically aggregates up to 3.27" (83mm) of precipitation.
In Sherman, snow does not fall in June through September.
June has the longest days of the year, with an average of 15h and 24min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
In Sherman, July is the month with the highest recorded average temperatures, measuring a high of 81.9°F (27.7°C) and a low of 62.2°F (16.8°C).
With an average of 10.7h of sunshine, July has the most sunshine of the year.
With an average relative humidity of 67%, October is the least humid month.
With an average of 9h and 0min of daylight, December has the shortest days of the year.
Average temperature
Sherman, SD
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (22.3°F).
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (8.2°F).
Average pressure
Sherman, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.86"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.93"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.13"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed
Sherman, SD
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.6mph - Average wind speed in March:
10.8mph - Average wind speed in April:
11.4mph - Average wind speed in May:
9.9mph - Average wind speed in June:
9.1mph
- Average wind speed in July:
8.2mph - Average wind speed in August:
8.3mph - Average wind speed in September:
9.6mph - Average wind speed in October:
10.7mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.3mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).
Average humidity
Sherman, SD
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).
Average rainfall
Sherman, SD
- Average rainfall in January:
0.63" - Average rainfall in February:
0.71" - Average rainfall in March:
1.42" - Average rainfall in April:
2.36" - Average rainfall in May:
2.8" - Average rainfall in June:
3.27"
- Average rainfall in July:
2.68" - Average rainfall in August:
2.28" - Average rainfall in September:
1.73" - Average rainfall in October:
1.77" - Average rainfall in November:
0.71" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is June (3.27").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days
Sherman, SD
- Average rainfall days in January:
3.3 days - Average rainfall days in February:
2.8 days - Average rainfall days in March:
9.2 days - Average rainfall days in April:
11.9 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
13.9 days - Average rainfall days in August:
13.3 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
8.7 days - Average rainfall days in November:
5.4 days - Average rainfall days in December:
3.5 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.8 days).
Average snowfall
Sherman, SD
- Average snowfall in January:
3.58" - Average snowfall in February:
4.29" - Average snowfall in March:
2.91" - Average snowfall in April:
1.93" - Average snowfall in May:
0.28" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Sherman, SD
- Average snowfall days in January:
10.1 days - Average snowfall days in February:
8.2 days - Average snowfall days in March:
7.3 days - Average snowfall days in April:
2.9 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:
5 days - Average snowfall days in December:
10.3 days
The month with the highest number of snowfall days is December (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Sherman, SD
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - 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 0min
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 January:
4h and 0min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 0min - Average sunshine in April:
8h and 0min - Average sunshine in May:
8h and 48min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 42min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 6min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Sherman, SD
- Average sunshine days in January:
19.6 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
13 days - Average sunshine days in May:
14.4 days - Average sunshine days in June:
10.6 days
- Average sunshine days in July:
14.4 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
17.1 days - Average sunshine days in October:
19.9 days - Average sunshine days in November:
20.4 days - Average sunshine days in December:
18.7 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (10.6 days).
Average UV index
Sherman, SD
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Sherman, SD
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility
Sherman, SD
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).
