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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, the same as December, in Groton, South Dakota, is another subzero cold winter month, with an average temperature ranging between max 20.7°F (-6.3°C) and min 6.3°F (-14.3°C). January, marked by an average high-temperature of 20.7°F (-6.3°C) and a low-temperature of 6.3°F (-14.3°C), is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Groton, is another freezing cold month, with an average temperature fluctuating between 9.1°F (-12.7°C) and 23.7°F (-4.6°C). As Groton steps into February, the average high-temperature holds at a still subzero cold 23.7°F (-4.6°C), hinting at a minor fluctuation from the prior month. Weather in February »
Weather in March
The first month of the spring, March, is a wintry month in Groton, South Dakota, with an average temperature ranging between min 24.8°F (-4°C) and max 39.7°F (4.3°C). A clear rise in the average high-temperature is observed during March, increasing from a subzero cold 23.7°F (-4.6°C) in February to an icy 39.7°F (4.3°C). Weather in March »
Weather in April
April is a fresh spring month in Groton, South Dakota, with temperature in the range of an average high of 54.1°F (12.3°C) and an average low of 36.9°F (2.7°C). Groton's transition into April is marked by a distinct rise in the average high-temperature, advancing from an icy 39.7°F (4.3°C) in March to a cool 54.1°F (12.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Groton, South Dakota, with an average temperature fluctuating between 48.2°F (9°C) and 66.7°F (19.3°C). As April gives way to May, the average high-temperature displays an increase, moving from a cool 54.1°F (12.3°C) to an enjoyable 66.7°F (19.3°C). Weather in May »
Weather in June
June, the first month of the summer in Groton, is a warm month, with temperature in the range of an average high of 76.8°F (24.9°C) and an average low of 57.6°F (14.2°C). Groton in June sees a temperature change, with average high-temperatures moving from a comfortable 66.7°F (19.3°C) in May to a warm 76.8°F (24.9°C). Weather in June »
Weather in July
July, like June, in Groton, South Dakota, is another warm summer month, with an average temperature fluctuating between 63.1°F (17.3°C) and 84.7°F (29.3°C). July is the warmest month, exhibiting average temperatures of 84.7°F (29.3°C) at the peak and 63.1°F (17.3°C) at the base. July's average heat index is estimated at a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Groton, is also a moderately hot month, with an average temperature varying between 83.1°F (28.4°C) and 61°F (16.1°C). Groton experiences a transition to a still warm 83.1°F (28.4°C) in average high-temperatures with the arrival of August, not greatly differing from July's 84.7°F (29.3°C). Weather in August »
Weather in September
September, the first month of the autumn in Groton, is also a moderately hot month, with an average temperature ranging between max 74.3°F (23.5°C) and min 52.9°F (11.6°C). The start of September involves a subtle temperature drop, shifting from a moderately hot 83.1°F (28.4°C) in August to a still warm 74.3°F (23.5°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Groton, South Dakota, with an average temperature varying between 40.1°F (4.5°C) and 56.3°F (13.5°C). Groton's weather in October is marked by a clear decrease in the average high-temperature, moving down from September's moderately hot 74.3°F (23.5°C) to a mild 56.3°F (13.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is also an icy month in Groton, South Dakota, with an average temperature ranging between min 26.8°F (-2.9°C) and max 41.7°F (5.4°C). November signals a clear decrease in the average high-temperature, dropping from October's moderate 56.3°F (13.5°C) to an icy 41.7°F (5.4°C). Weather in November »
Weather in December
December, the first month of the winter in Groton, is still a freezing cold month, with an average temperature ranging between max 25°F (-3.9°C) and min 12.7°F (-10.7°C). A clear reduction in the average high-temperature is witnessed with the onset of December, reducing from a wintry 41.7°F (5.4°C) in November to a freezing cold 25°F (-3.9°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Groton?
Groton's coldest month, January, registers temperatures that range from a high of 20.7°F (-6.3°C) to a low of 6.3°F (-14.3°C).
What is the most humid month in Groton?
With an average relative humidity of 88%, January is the most humid month.
What is the driest month in Groton?
January is the month with the least rainfall in Groton. Rain falls for 3 days and accumulates 0.59" (15mm) of precipitation.
How much does it rain in Groton?
Throughout the year, in Groton, South Dakota, there are 97.2 rainfall days, and 18.35" (466mm) of precipitation is accumulated.
When does it snow in Groton?
Months with snowfall are January through May, October through December.
When does it snow the most in Groton?
January is the month with the most snowfall in Groton. Snow falls for 13 days and accumulates 3.82" (97mm) of snow.
How many days does it snow in Groton?
Throughout the year, in Groton, South Dakota, there are 54.8 snowfall days, and 19.13" (486mm) of snow is accumulated.
What is the month with the least sunshine in Groton?
With an average of 3.9h of sunshine, January has the least sunshine of the year in Groton.
What are the months with the lowest UV index in Groton?
January, February and November, with an average maximum UV index of 1, are months with the lowest UV index in Groton.
When is Daylight Saving Time (DST) in Groton?
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.
What is the wettest month in Groton?
June is the month with the most rainfall in Groton, South Dakota. Rain falls for 15 days and accumulates 3.46" (88mm) of precipitation.
When it does not snow in Groton?
June through September are months without snowfall in Groton.
When are the longest days in Groton?
The month with the longest days in Groton, South Dakota, is June, with an average of 15h and 36min of daylight.
What is the month with the highest UV index in Groton?
June through August, with an average maximum UV index of 6, are months with the highest UV index in Groton, South Dakota.
What is the warmest month in Groton?
July is the warmest month in Groton, South Dakota, with the temperature often reaching an average high of 84.7°F (29.3°C) and an average low of 63.1°F (17.3°C).
What month has the most sunshine in Groton?
The month with the most sunshine is July, with an average of 11.1h of sunshine.
What is the least humid month in Groton?
August and September, with an average relative humidity of 60%, are the least humid months in Groton.
What is the month with the shortest days in Groton?
The month with the shortest days in Groton is December, with an average of 8h and 48min of daylight.
Average temperature
Groton, SD
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (20.7°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (6.3°F).
Average pressure
Groton, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.17"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.85"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.96"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Groton, SD
- Average wind speed in January:
9.5mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.7mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9.7mph - Average wind speed in June:
8.9mph
- Average wind speed in July:
8.4mph - Average wind speed in August:
8.3mph - Average wind speed in September:
9.6mph - Average wind speed in October:
10.4mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity
Groton, SD
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (60%).
Average rainfall
Groton, SD
- Average rainfall in January:
0.59" - Average rainfall in February:
0.63" - Average rainfall in March:
1.1" - Average rainfall in April:
1.65" - Average rainfall in May:
2.32" - Average rainfall in June:
3.46"
- Average rainfall in July:
2.6" - Average rainfall in August:
1.61" - Average rainfall in September:
1.26" - Average rainfall in October:
1.61" - Average rainfall in November:
0.63" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days
Groton, SD
- Average rainfall days in January:
3 days - Average rainfall days in February:
2 days - Average rainfall days in March:
7.1 days - Average rainfall days in April:
10.2 days - Average rainfall days in May:
13 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
12.2 days - Average rainfall days in August:
10.4 days - Average rainfall days in September:
8.9 days - Average rainfall days in October:
7.8 days - Average rainfall days in November:
4.5 days - Average rainfall days in December:
3.1 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (2 days).
Average snowfall
Groton, SD
- Average snowfall in January:
3.82" - Average snowfall in February:
3.7" - Average snowfall in March:
3.19" - Average snowfall in April:
2.32" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (3.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Groton, SD
- Average snowfall days in January:
13 days - Average snowfall days in February:
10.9 days - Average snowfall days in March:
8.7 days - Average snowfall days in April:
3.3 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:
2.1 days - Average snowfall days in November:
5.1 days - Average snowfall days in December:
11.4 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Groton, 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 4min - Average daylight in May:
14h and 5min - Average daylight in June:
15h and 4min
- Average daylight in July:
15h and 2min - 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 5min - Average sunshine in March:
5h and 3min - Average sunshine in April:
7h and 4min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
11h and 1min - Average sunshine in August:
10h and 4min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 2min - Average sunshine in December:
4h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Groton, SD
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
16.4 days - Average sunshine days in April:
15.5 days - Average sunshine days in May:
15.7 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
16.8 days - Average sunshine days in August:
18.2 days - Average sunshine days in September:
18.7 days - Average sunshine days in October:
19.8 days - Average sunshine days in November:
20.9 days - Average sunshine days in December:
18.9 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is June (12.7 days).
Average UV index
Groton, 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 and November (UV index 1).
Average cloud cover
Groton, SD
The month with the most cloud cover is January (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility
Groton, 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).
Groton, South Dakota, USA
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