Climate and monthly weather forecastEgan, SD
Climate and monthly weather forecast
Weather in January
January, the same as December, in Egan, South Dakota, is another subzero cold winter month, with temperature in the range of an average high of 21.6°F (-5.8°C) and an average low of 7.7°F (-13.5°C). Egan's coldest month, January, registers temperatures that range from a high of 21.6°F (-5.8°C) to a low of 7.7°F (-13.5°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Egan, South Dakota, with an average temperature varying between 25°F (-3.9°C) and 10.9°F (-11.7°C). The start of February sees the average high-temperature at a still freezing cold 25°F (-3.9°C), showing little difference from January's 21.6°F (-5.8°C). Weather in February »Weather in March
The first month of the spring, March, is a cold month in Egan, South Dakota, with an average temperature ranging between max 40.3°F (4.6°C) and min 25.9°F (-3.4°C). A clear escalation in the average high-temperature marks the arrival of March, surging from a subzero cold 25°F (-3.9°C) in February to a cold 40.3°F (4.6°C). Weather in March »Weather in April
April is a cool spring month in Egan, South Dakota, with an average temperature fluctuating between 53.6°F (12°C) and 37.2°F (2.9°C). April indicates a change in the average high-temperature, moving up from a wintry 40.3°F (4.6°C) in March to a fresh 53.6°F (12°C). Weather in April »Weather in May
May, the last month of the spring in Egan, is a comfortable month, with an average temperature ranging between max 66.4°F (19.1°C) and min 48.7°F (9.3°C). May's arrival brings a change in high-temperatures, moving from a fresh 53.6°F (12°C) in April to a comfortable 66.4°F (19.1°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Egan, South Dakota, with an average temperature ranging between min 58.8°F (14.9°C) and max 75.9°F (24.4°C). Egan's transition into June is marked by a rise in the average high-temperature, advancing from an enjoyable 66.4°F (19.1°C) in May to a warm 75.9°F (24.4°C). Weather in June »Weather in July
July, like June, in Egan, South Dakota, is another warm summer month, with an average temperature varying between 62.2°F (16.8°C) and 81.1°F (27.3°C). Egan's warmest month, July, generally records average temperatures ranging from a high of 81.1°F (27.3°C) to a low of 62.2°F (16.8°C). The heat index for July is computed to be a tropical 86°F (30°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Egan, South Dakota, with an average temperature fluctuating between 59.2°F (15.1°C) and 79.9°F (26.6°C). August's commencement is accompanied by an average high-temperature of a still warm 79.9°F (26.6°C), diverging marginally from July's 81.1°F (27.3°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Egan, South Dakota, with an average temperature varying between 52.3°F (11.3°C) and 72.5°F (22.5°C). Egan's September weather shows a modest shift in high-temperatures, falling from August's moderately hot 79.9°F (26.6°C) to a pleasant 72.5°F (22.5°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Egan, South Dakota, with an average temperature fluctuating between 55.9°F (13.3°C) and 40.1°F (4.5°C). The shift from September to October is characterized by a clear decrease in the average high-temperature, reducing from a pleasant 72.5°F (22.5°C) to a moderate 55.9°F (13.3°C). Weather in October »Weather in November
The last month of the autumn, November, is also an icy month in Egan, South Dakota, with an average temperature fluctuating between 41.7°F (5.4°C) and 27.9°F (-2.3°C). November's onset brings a reduction in the average high-temperature, from a moderate 55.9°F (13.3°C) in October to a cold 41.7°F (5.4°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Egan, South Dakota, with temperature in the range of an average low of 14.4°F (-9.8°C) and an average high of 25.7°F (-3.5°C). The arrival of December signals a clear decrease in the average high-temperature, falling from an icy 41.7°F (5.4°C) in November to a subzero cold 25.7°F (-3.5°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 average temperatures reaching a high of 21.6°F (-5.8°C) and a low of 7.7°F (-13.5°C), is the coldest month.
With an average relative humidity of 89%, January is the most humid month in Egan, South Dakota.
January and November are months with the least rain in Egan when the rain falls for 2.7 days and typically aggregates up to 0.63" (16mm) of rain.
Throughout the year, there are 113.8 rainfall days, and 20.59" (523mm) of precipitation is accumulated.
January through May, October through December are months with snowfall in Egan.
In Egan, South Dakota, during the entire year, snow falls for 53.1 days and aggregates up to 20.04" (509mm) of snow.
January has the least sunshine of the year in Egan, South Dakota, with an average of 3.8h of sunshine.
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.
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 17.6 days and typically aggregates up to 3.15" (80mm) of precipitation.
June through September are months without snowfall.
June has the longest days of the year, with an average of 15h and 24min of daylight.
June and July, with an average maximum UV index of 6, are months with the highest UV index in Egan, South Dakota.
July, known for its average high temperature of 81.1°F (27.3°C) and an average low temperature of 62.2°F (16.8°C), is the warmest month.
July has the most sunshine of the year in Egan, South Dakota, with an average of 10.5h of sunshine.
With an average relative humidity of 68%, October is the least humid month.
The month with the most snowfall in Egan, South Dakota, is December, when snow falls for 11.6 days and typically aggregates up to 4.8" (122mm) of snow.
The month with the shortest days is December, with an average of 9h and 0min of daylight.
Average temperature
Egan, SD
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (21.6°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 (7.7°F).
Average pressure
Egan, 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
Egan, SD
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.7mph - Average wind speed in March:
10.9mph - Average wind speed in April:
11.6mph - Average wind speed in May:
10.1mph - Average wind speed in June:
9.3mph
- Average wind speed in July:
8.3mph - Average wind speed in August:
8.4mph - Average wind speed in September:
9.8mph - Average wind speed in October:
10.8mph - Average wind speed in November:
10.8mph - Average wind speed in December:
10.6mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity
Egan, SD
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Egan, SD
- Average rainfall in January:
0.63" - Average rainfall in February:
0.67" - Average rainfall in March:
1.34" - Average rainfall in April:
2.28" - Average rainfall in May:
2.68" - Average rainfall in June:
3.15"
- Average rainfall in July:
2.76" - Average rainfall in August:
2.01" - Average rainfall in September:
1.61" - Average rainfall in October:
1.85" - Average rainfall in November:
0.63" - Average rainfall in December:
0.98"
The wettest month (with the highest rainfall) is June (3.15").
The driest months (with the least rainfall) are January and November (0.63").
Average rainfall days
Egan, SD
- Average rainfall days in January:
2.7 days - Average rainfall days in February:
2.4 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
15 days - Average rainfall days in June:
17.6 days
- Average rainfall days in July:
13.7 days - Average rainfall days in August:
12.8 days - Average rainfall days in September:
10.2 days - Average rainfall days in October:
9.4 days - Average rainfall days in November:
5.3 days - Average rainfall days in December:
3.8 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (2.4 days).
Average snowfall
Egan, SD
- Average snowfall in January:
3.54" - Average snowfall in February:
4.13" - Average snowfall in March:
2.99" - Average snowfall in April:
2.01" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Egan, SD
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
9.9 days - Average snowfall days in March:
8.6 days - Average snowfall days in April:
3.5 days - Average snowfall days in May:
0.5 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:
5.6 days - Average snowfall days in December:
11.6 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Egan, SD
- Average daylight in January:
9h and 18min - 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:
3h and 48min - Average sunshine in February:
4h and 48min - Average sunshine in March:
5h and 42min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 48min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Egan, SD
- Average sunshine days in January:
18.1 days - Average sunshine days in February:
17 days - Average sunshine days in March:
15.3 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
14.3 days - Average sunshine days in June:
10.3 days
- Average sunshine days in July:
15.6 days - Average sunshine days in August:
15.1 days - Average sunshine days in September:
17.6 days - Average sunshine days in October:
18.5 days - Average sunshine days in November:
19.4 days - Average sunshine days in December:
18.4 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (10.3 days).
Average UV index
Egan, SD
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Egan, SD
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility
Egan, 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).
