Climate and monthly weather forecastChester, SD
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Chester, South Dakota, with temperature in the range of an average low of 8.2°F (-13.2°C) and an average high of 22.3°F (-5.4°C). Temperature readings reach their annual highs in January, averaging 22.3°F (-5.4°C) and a minimum average of 8.2°F (-13.2°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Chester, South Dakota, with an average temperature fluctuating between 11.8°F (-11.2°C) and 25.9°F (-3.4°C). February's onset records an average high-temperature of a still freezing cold 25.9°F (-3.4°C), a near match to January's 22.3°F (-5.4°C). Weather in February »Weather in March
March, the first month of the spring in Chester, is a cold month, with an average temperature fluctuating between 27°F (-2.8°C) and 41.5°F (5.3°C). As March begins, there is a noticeable increase in the average high-temperature, soaring from a freezing cold 25.9°F (-3.4°C) in February to an icy 41.5°F (5.3°C). Weather in March »Weather in April
April in Chester, South Dakota, is a fresh spring month, with temperature in the range of an average low of 37.9°F (3.3°C) and an average high of 54.5°F (12.5°C). April's onset witnesses a shift in the average high-temperature, moving 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
May, the last month of the spring in Chester, is a comfortable month, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 66.7°F (19.3°C). The shift into May is characterized by a rise in the average high-temperature, transitioning from April's fresh 54.5°F (12.5°C) to a comfortable 66.7°F (19.3°C). Weather in May »Weather in June
The first month of the summer, June, is a warm month in Chester, South Dakota, with an average temperature varying between 76.6°F (24.8°C) and 59.4°F (15.2°C). The rise of average high-temperatures is seen in June, with an increase from an enjoyable 66.7°F (19.3°C) in May to a moderately hot 76.6°F (24.8°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Chester, South Dakota, with an average temperature ranging between max 81.9°F (27.7°C) and min 62.2°F (16.8°C). July, recording an average high temperature of 81.9°F (27.7°C) and a low temperature of 62.2°F (16.8°C), is Chester's warmest month. In July, the average heat index is computed to be a tropical 87.8°F (31°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Chester, South Dakota, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 59.4°F (15.2°C). The commencement of August notes an average high-temperature of a still moderately hot 80.6°F (27°C), exhibiting little difference from the previous month. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Chester, South Dakota, with an average temperature ranging between min 52.9°F (11.6°C) and max 73.2°F (22.9°C). Chester experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit 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, the same as September, in Chester, South Dakota, is a moderate autumn month, with an average temperature fluctuating between 56.3°F (13.5°C) and 40.8°F (4.9°C). A clear reduction in the average high-temperature is witnessed with the onset of October, reducing from an agreeable 73.2°F (22.9°C) in September to a mild 56.3°F (13.5°C). Weather in October »Weather in November
The last month of the autumn, November, is another cold month in Chester, South Dakota, with an average temperature varying between 42.3°F (5.7°C) and 28°F (-2.2°C). In the transition to November, Chester observes a drop in the average high-temperature, moving from a refreshing 56.3°F (13.5°C) in October to a wintry 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 Chester, South Dakota, with an average temperature varying between 14.9°F (-9.5°C) and 26.4°F (-3.1°C). With the transition into December, Chester experiences a significant decrease in average high-temperatures, moving down from a cold 42.3°F (5.7°C) in November to a freezing cold 26.4°F (-3.1°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
January, with its average high-temperature of 22.3°F (-5.4°C) and an average low-temperature of 8.2°F (-13.2°C), holds the record as the coldest month in Chester.
The most humid month in Chester, South Dakota, is January, with an average relative humidity of 89%.
The month with the least rainfall is January, when the rain falls for 3.3 days and typically collects 0.63" (16mm) of precipitation.
Throughout the year, in Chester, South Dakota, there are 116.4 rainfall days, and 21.38" (543mm) of precipitation is accumulated.
January through May, October through December are months with snowfall in Chester.
Throughout the year, in Chester, South Dakota, there are 45.6 snowfall days, and 19.49" (495mm) of snow is accumulated.
January has the least sunshine of the year, with an average of 4h of sunshine.
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
February is the month with the most snowfall in Chester, South Dakota. Snow falls for 8.2 days and accumulates 4.29" (109mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Chester, South Dakota, 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.
June is the month with the most rainfall. Rain falls for 17.4 days and accumulates 3.27" (83mm) of precipitation.
In Chester, South Dakota, snow does not fall in June through September.
With an average of 15h and 24min of daylight, June has the longest days of the year in Chester.
June and July, with an average maximum UV index of 6, are months with the highest UV index.
July, on average, is the warmest month in Chester, South Dakota, registering a high temperature 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 in Chester.
With an average relative humidity of 67%, October is the least humid month in Chester, South Dakota.
With an average of 9h and 0min of daylight, December has the shortest days of the year in Chester.
Average temperature
Chester, 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
Chester, 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
Chester, 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
Chester, SD
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (67%).
Average rainfall
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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
Chester, 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).
