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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is another subzero cold winter month in Summit, South Dakota, with an average temperature varying between 6.1°F (-14.4°C) and 19.6°F (-6.9°C). The lowest temperatures are recorded in January, with averages reaching a high of 19.6°F (-6.9°C) and a low of 6.1°F (-14.4°C). Weather in January »
Weather in February
February, the last month of the winter in Summit, is another freezing cold month, with an average temperature fluctuating between 8.6°F (-13°C) and 22.8°F (-5.1°C). The beginning of February records an average high-temperature of a still freezing cold 22.8°F (-5.1°C), almost echoing the conditions of the previous month. Weather in February »
Weather in March
March, the first month of the spring in Summit, is a wintry month, with an average temperature fluctuating between 38.5°F (3.6°C) and 24.4°F (-4.2°C). With the onset of March, Summit's average high-temperature experiences a noticeable rise, advancing from February's freezing cold 22.8°F (-5.1°C) to a wintry 38.5°F (3.6°C). Weather in March »
Weather in April
April in Summit, South Dakota, is a fresh spring month, with an average temperature fluctuating between 36.5°F (2.5°C) and 52.5°F (11.4°C). April brings an increase in the average high-temperature, progressing from a wintry 38.5°F (3.6°C) in March to a fresh 52.5°F (11.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in Summit, South Dakota, with an average temperature varying between 66°F (18.9°C) and 48°F (8.9°C). Summit sees an increase in the average high-temperature with the arrival of May, moving from April's cool 52.5°F (11.4°C) to a refreshing 66°F (18.9°C). Weather in May »
Weather in June
June, the first month of the summer in Summit, is a warm month, with an average temperature varying between 75.4°F (24.1°C) and 57.9°F (14.4°C). As June arrives, a rise in the average high-temperature is observed, moving from an enjoyable 66°F (18.9°C) in May to a warm 75.4°F (24.1°C). Weather in June »
Weather in July
July, like June, in Summit, South Dakota, is a moderately hot summer month, with temperature in the range of an average high of 81.5°F (27.5°C) and an average low of 61.9°F (16.6°C). July is the month that records the highest temperatures, with averages ranging from a high of 81.5°F (27.5°C) to a low of 61.9°F (16.6°C). The heat index value during July is computed to be a tropical 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Summit, is another warm month, with an average temperature varying between 59.4°F (15.2°C) and 80.8°F (27.1°C). Summit experiences an average high-temperature of a still moderately hot 80.8°F (27.1°C) with the onset of August, subtly varied from July's 81.5°F (27.5°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a pleasant month in Summit, South Dakota, with an average temperature fluctuating between 72.5°F (22.5°C) and 52.7°F (11.5°C). The shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a warm 80.8°F (27.1°C) to an agreeable 72.5°F (22.5°C). Weather in September »
Weather in October
October, the same as September, is a cool autumn month in Summit, South Dakota, with temperature in the range of an average high of 55.2°F (12.9°C) and an average low of 40.1°F (4.5°C). October's arrival witnesses a distinct temperature drop, receding from September's agreeable 72.5°F (22.5°C) to a fresh 55.2°F (12.9°C). Weather in October »
Weather in November
November, the last month of the autumn in Summit, is also an icy month, with an average temperature fluctuating between 40.6°F (4.8°C) and 27.5°F (-2.5°C). Summit's November weather is characterized by a distinct downswing in high-temperatures, falling from October's fresh 55.2°F (12.9°C) to an icy 40.6°F (4.8°C). Weather in November »
Weather in December
December, the first month of the winter in Summit, is also a subzero cold month, with an average temperature ranging between min 13.1°F (-10.5°C) and max 24.6°F (-4.1°C). As December begins, there is a noticeable decrease in the average high-temperature, falling from a cold 40.6°F (4.8°C) in November to a subzero cold 24.6°F (-4.1°C). Weather in December »
[Resources]Frequently asked questions
What are the coldest months in Summit?
January is Summit's coldest month, registering average high temperatures of 19.6°F (-6.9°C) and lows of 6.1°F (-14.4°C).
What is the most humid month in Summit?
With an average relative humidity of 89%, January is the most humid month in Summit.
What is the driest month in Summit?
The months with the least rainfall in Summit, South Dakota, are January and February Rain falls for 3.7 days and accumulates 0.63" (16mm) of rain.
How much does it rain in Summit?
Throughout the year, in Summit, South Dakota, there are 115.2 rainfall days, and 19.88" (505mm) of precipitation is accumulated.
When does it snow in Summit?
Months with snowfall in Summit are January through May, October through December.
How much does it snow in Summit?
In Summit, South Dakota, during the entire year, snow falls for 58.8 days and aggregates up to 20.39" (518mm) of snow.
What is the month with the least sunshine in Summit?
With an average of 3.9h of sunshine, January has the least sunshine of the year.
What is the month with the lowest UV index in Summit?
January is the month with the lowest UV index, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Summit?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Summit, 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.
What is the rainiest month in Summit?
June is the month with the most rainfall in Summit, South Dakota. Rain falls for 17.8 days and accumulates 3.11" (79mm) of precipitation.
When it does not snow in Summit?
June through September are months without snowfall.
When are the longest days in Summit?
June has the longest days of the year, with an average of 15h and 36min of daylight.
What are the months with the highest UV index in Summit?
June and July, with an average maximum UV index of 6, are months with the highest UV index.
What month is the hottest in Summit?
Summit registers the average highest temperatures during July, with peaks of 81.5°F (27.5°C) and lows of 61.9°F (16.6°C).
What month has the most sunshine in Summit?
With an average of 10.8h of sunshine, July has the most sunshine of the year in Summit, South Dakota.
What is the least humid month in Summit?
With an average relative humidity of 66%, October is the least humid month in Summit, South Dakota.
What is the snowiest month in Summit?
December is the month with the most snowfall. Snow falls for 12.7 days and accumulates 4.49" (114mm) of snow.
What is the month with the shortest days in Summit?
December has the shortest days of the year, with an average of 8h and 48min of daylight.
Average temperature
Summit, SD
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (19.6°F).
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (6.1°F).
Average pressure
Summit, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.93"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:
29.97"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.12"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
Summit, SD
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.2mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.7mph - Average wind speed in June:
8.8mph
- Average wind speed in July:
8mph - Average wind speed in August:
8.1mph - Average wind speed in September:
9.3mph - Average wind speed in October:
10.6mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity
Summit, SD
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (66%).
Average rainfall
Summit, SD
- Average rainfall in January:
0.63" - Average rainfall in February:
0.63" - Average rainfall in March:
1.14" - Average rainfall in April:
1.69" - Average rainfall in May:
2.56" - Average rainfall in June:
3.11"
- Average rainfall in July:
2.99" - Average rainfall in August:
1.89" - Average rainfall in September:
1.61" - Average rainfall in October:
1.77" - Average rainfall in November:
0.75" - Average rainfall in December:
1.1"
The wettest month (with the highest rainfall) is June (3.11").
The driest months (with the least rainfall) are January and February (0.63").
Average rainfall days
Summit, SD
- Average rainfall days in January:
3.7 days - Average rainfall days in February:
2.3 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
12.2 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10 days - Average rainfall days in October:
8.8 days - Average rainfall days in November:
5.8 days - Average rainfall days in December:
4.2 days
The month with the highest number of rainy days is June (17.8 days).
The month with the least rainy days is February (2.3 days).
Average snowfall
Summit, SD
- Average snowfall in January:
4.09" - Average snowfall in February:
4.21" - Average snowfall in March:
2.91" - Average snowfall in April:
1.81" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is December (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Summit, SD
- Average snowfall days in January:
13.1 days - Average snowfall days in February:
12.2 days - Average snowfall days in March:
8.2 days - Average snowfall days in April:
3.8 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:
1.6 days - Average snowfall days in November:
6.9 days - Average snowfall days in December:
12.7 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Summit, SD
- Average daylight in January:
9h and 1min - Average daylight in February:
10h and 2min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 3min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 1min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 3min - Average daylight in October:
10h and 5min - Average daylight in November:
9h and 3min - Average daylight in December:
8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in January:
3h and 5min - Average sunshine in February:
4h and 4min - Average sunshine in March:
5h and 4min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Summit, SD
- Average sunshine days in January:
15.3 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
15.5 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
13.5 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
13.8 days - Average sunshine days in August:
16.6 days - Average sunshine days in September:
18 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
18.4 days - Average sunshine days in December:
16.3 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (9.6 days).
Average UV index
Summit, SD
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Summit, SD
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility
Summit, 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).
Summit, South Dakota, USA
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