Climate and monthly weather forecastEthan, SD
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Ethan, South Dakota, with temperature in the range of an average low of 10.2°F (-12.1°C) and an average high of 24.4°F (-4.2°C). The coldest period is January, when temperatures fluctuate between an average high of 24.4°F (-4.2°C) and a low of 10.2°F (-12.1°C). Weather in January »Weather in February
February, the last month of the winter in Ethan, is also a subzero cold month, with an average temperature fluctuating between 14.2°F (-9.9°C) and 28.6°F (-1.9°C). Transitioning from January to February, Ethan observes an average high-temperature of a still freezing cold 28.6°F (-1.9°C), differing subtly from the previous month. Weather in February »Weather in March
March, the first month of the spring in Ethan, is a chilly month, with an average temperature varying between 44.4°F (6.9°C) and 27.9°F (-2.3°C). The shift into March is marked by a noticeable escalation in the average high-temperature, rising from February's subzero cold 28.6°F (-1.9°C) to a chilly 44.4°F (6.9°C). Weather in March »Weather in April
April is a refreshing spring month in Ethan, South Dakota, with an average temperature ranging between min 38.8°F (3.8°C) and max 56.8°F (13.8°C). April brings a temperature change, with average high-temperatures moving from March's chilly 44.4°F (6.9°C) to a moderate 56.8°F (13.8°C). Weather in April »Weather in May
May, the last month of the spring in Ethan, is an agreeable month, with temperature in the range of an average low of 50°F (10°C) and an average high of 68.4°F (20.2°C). Ethan sees an increase in average high-temperatures during May, moving from a moderate 56.8°F (13.8°C) in April to an agreeable 68.4°F (20.2°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Ethan, South Dakota, with an average temperature varying between 79°F (26.1°C) and 60.3°F (15.7°C). As Ethan transitions into June, a rise in the average high-temperature is observed, moving from a pleasant 68.4°F (20.2°C) in May to a moderately hot 79°F (26.1°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Ethan, South Dakota, with an average temperature varying between 85.6°F (29.8°C) and 64.6°F (18.1°C). Ethan reaches its highest average temperatures in July, measuring 85.6°F (29.8°C) at the peak and 64.6°F (18.1°C) at the lowest. For July, the heat index is computed to be a hot 93.2°F (34°C). Weather in July »Weather in August
August, the last month of the summer in Ethan, is also a moderately hot month, with an average temperature fluctuating between 62.1°F (16.7°C) and 84.4°F (29.1°C). August reports an average high-temperature of a still warm 84.4°F (29.1°C), slightly varied from July's 85.6°F (29.8°C). Weather in August »Weather in September
September, the first month of the autumn in Ethan, is still a warm month, with an average temperature fluctuating between 55°F (12.8°C) and 76.1°F (24.5°C). As September arrives, Ethan's weather displays a minor decrease in high-temperatures, transitioning from August's warm 84.4°F (29.1°C) to a still moderately hot 76.1°F (24.5°C). Weather in September »Weather in October
October, like September, is a moderate autumn month in Ethan, South Dakota, with temperature in the range of an average high of 58.5°F (14.7°C) and an average low of 42.1°F (5.6°C). The drop of average high-temperatures is noticeable in October, with a decrease from a warm 76.1°F (24.5°C) in September to a mild 58.5°F (14.7°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Ethan, South Dakota, with an average temperature ranging between min 29.5°F (-1.4°C) and max 45°F (7.2°C). The arrival of November indicates a decrease in the average high-temperature, moving from a moderate 58.5°F (14.7°C) in October to a frosty 45°F (7.2°C). Weather in November »Weather in December
December, the first month of the winter in Ethan, is also a subzero cold month, with temperature in the range of an average low of 16°F (-8.9°C) and an average high of 28.6°F (-1.9°C). With the transition into December, Ethan experiences a significant decrease in average high-temperatures, moving down from a frosty 45°F (7.2°C) in November to a subzero cold 28.6°F (-1.9°C). Weather in December »Updated: Aug 24, 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
Ethan records the coldest temperatures in January, averaging a high of 24.4°F (-4.2°C) and a low of 10.2°F (-12.1°C).
The most humid month is January, with an average relative humidity of 87%.
Throughout the year, there are 93.2 rainfall days, and 11.3" (287mm) of precipitation is accumulated.
Months with snowfall are January through April, October through December.
In Ethan, during the entire year, snow falls for 35.3 days and aggregates up to 7.17" (182mm) of snow.
The month with the least sunshine is January, with an average of 4.4h of sunshine.
With an average maximum UV index of 1, January is the month with the lowest UV index in Ethan.
The months with the least rainfall are February and November Rain falls for 1.9 days and accumulates 0.28" (7mm) of rain.
February is the month with the most snowfall. Snow falls for 7.3 days and accumulates 1.42" (36mm) 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 May, when the rain falls for 13.5 days and typically aggregates up to 1.65" (42mm) of precipitation.
In Ethan, snow does not fall in May through September.
With an average of 15h and 24min of daylight, June has the longest days of the year.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
Ethan's temperature records reveal July as the warmest month, marked by average highs of 85.6°F (29.8°C) and lows of 64.6°F (18.1°C).
The month with the most sunshine is July, with an average of 11.1h of sunshine.
The months with the lowest humidity are September and October, with an average relative humidity of 63%.
December has the shortest days of the year, with an average of 9h and 0min of daylight.
Average temperature
Ethan, SD
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (24.4°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure
Ethan, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.16"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.93"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:
29.92"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 months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Ethan, SD
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.3mph - Average wind speed in March:
10.7mph - Average wind speed in April:
11.2mph - Average wind speed in May:
9.8mph - Average wind speed in June:
9.2mph
- Average wind speed in July:
8.6mph - Average wind speed in August:
8.7mph - Average wind speed in September:
9.7mph - Average wind speed in October:
10.6mph - Average wind speed in November:
10.3mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).
Average humidity
Ethan, SD
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are September and October (63%).
Average rainfall
Ethan, SD
- Average rainfall in January:
0.31" - Average rainfall in February:
0.28" - Average rainfall in March:
0.83" - Average rainfall in April:
1.18" - Average rainfall in May:
1.65" - Average rainfall in June:
1.61"
- Average rainfall in July:
1.54" - Average rainfall in August:
1.14" - Average rainfall in September:
1.18" - Average rainfall in October:
0.79" - Average rainfall in November:
0.28" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February and November (0.28").
Average rainfall days
Ethan, SD
- Average rainfall days in January:
2.6 days - Average rainfall days in February:
1.9 days - Average rainfall days in March:
7.2 days - Average rainfall days in April:
11.3 days - Average rainfall days in May:
13.5 days - Average rainfall days in June:
13.6 days
- Average rainfall days in July:
10.5 days - Average rainfall days in August:
10.5 days - Average rainfall days in September:
9.2 days - Average rainfall days in October:
6.8 days - Average rainfall days in November:
3.2 days - Average rainfall days in December:
2.9 days
The month with the highest number of rainy days is June (13.6 days).
The month with the least rainy days is February (1.9 days).
Average snowfall
Ethan, SD
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Ethan, SD
- Average snowfall days in January:
8.7 days - Average snowfall days in February:
7.3 days - Average snowfall days in March:
5.4 days - Average snowfall days in April:
2.6 days - Average snowfall days in May:
0.1 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:
0.9 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Ethan, 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 42min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 0min - 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 24min - Average sunshine in February:
5h and 24min - Average sunshine in March:
6h and 18min - Average sunshine in April:
8h and 0min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
11h and 6min - Average sunshine in August:
10h and 42min - Average sunshine in September:
8h and 54min - Average sunshine in October:
6h and 30min - Average sunshine in November:
5h and 48min - Average sunshine in December:
4h and 42min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days
Ethan, SD
- Average sunshine days in January:
21.6 days - Average sunshine days in February:
19.8 days - Average sunshine days in March:
18.3 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
14 days - Average sunshine days in June:
12.8 days
- Average sunshine days in July:
17.8 days - Average sunshine days in August:
17.3 days - Average sunshine days in September:
18.3 days - Average sunshine days in October:
22 days - Average sunshine days in November:
23.4 days - Average sunshine days in December:
21.9 days
The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.8 days).
Average UV index
Ethan, SD
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Ethan, SD
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 22).
Average visibility
Ethan, SD
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
