Climate and monthly weather forecastOacoma, SD
Climate and monthly weather forecast
Weather in January
January, the same as December, in Oacoma, South Dakota, is another subzero cold winter month, with an average temperature fluctuating between 26.1°F (-3.3°C) and 12.6°F (-10.8°C). January is the coldest month, with an average high-temperature of 26.1°F (-3.3°C) and an average low-temperature of 12.6°F (-10.8°C). Weather in January »Weather in February
The last month of the winter, February, is another freezing cold month in Oacoma, South Dakota, with an average temperature fluctuating between 15.3°F (-9.3°C) and 29.8°F (-1.2°C). February's commencement is accompanied by an average high-temperature of a still freezing cold 29.8°F (-1.2°C), diverging marginally from January's 26.1°F (-3.3°C). Weather in February »Weather in March
March, the first month of the spring in Oacoma, is a frosty month, with temperature in the range of an average low of 29.1°F (-1.6°C) and an average high of 45°F (7.2°C). A distinct shift in the average high-temperature is signaled in March, moving up from a subzero cold 29.8°F (-1.2°C) in February to a chilly 45°F (7.2°C). Weather in March »Weather in April
April is a mild spring month in Oacoma, South Dakota, with an average temperature ranging between min 38.3°F (3.5°C) and max 56.3°F (13.5°C). April indicates a change in the average high-temperature, moving up from a frosty 45°F (7.2°C) in March to a moderate 56.3°F (13.5°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Oacoma, South Dakota, with an average temperature fluctuating between 49.3°F (9.6°C) and 67.8°F (19.9°C). The onset of May marks an increase in the average high-temperature, moving from a mild 56.3°F (13.5°C) in April to a comfortable 67.8°F (19.9°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Oacoma, South Dakota, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 79.7°F (26.5°C). An escalation in the average high-temperature is seen with the onset of June, moving from a refreshing 67.8°F (19.9°C) in May to a moderately hot 79.7°F (26.5°C). Weather in June »Weather in July
July in Oacoma, South Dakota, is a hot summer month, with an average temperature ranging between min 66.2°F (19°C) and max 88°F (31.1°C). Oacoma's temperatures tend to reach their peak averages in July, with a high of 88°F (31.1°C) and a low of 66.2°F (19°C). July's mean heat index is evaluated at a fiery hot 95°F (35°C). Weather in July »Weather in August
August, the last month of the summer in Oacoma, is another warm month, with an average temperature fluctuating between 85.8°F (29.9°C) and 63.7°F (17.6°C). Oacoma experiences an average high-temperature of a moderately hot 85.8°F (29.9°C) in August, subtly different from July's 88°F (31.1°C). Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Oacoma, South Dakota, with an average temperature ranging between max 76.3°F (24.6°C) and min 55.9°F (13.3°C). The shift from August to September involves a decrease in the average high-temperature, from a warm 85.8°F (29.9°C) to a still moderately hot 76.3°F (24.6°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Oacoma, South Dakota, with an average temperature varying between 42.4°F (5.8°C) and 58.6°F (14.8°C). With the onset of October, Oacoma's average high-temperature witnesses a clear drop, receding from September's warm 76.3°F (24.6°C) to a mild 58.6°F (14.8°C). Weather in October »Weather in November
November, the last month of the autumn in Oacoma, is another chilly month, with an average temperature ranging between min 29.7°F (-1.3°C) and max 45.5°F (7.5°C). In November, the average high-temperature decreases from a moderate 58.6°F (14.8°C) in October to a chilly 45.5°F (7.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Oacoma, South Dakota, with an average temperature fluctuating between 16.9°F (-8.4°C) and 29.1°F (-1.6°C). The changeover to December signals a significant decrease in the average high-temperature, dropping from a chilly 45.5°F (7.5°C) in November to a subzero cold 29.1°F (-1.6°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
During the coldest month in Oacoma, January, temperatures average a high of 26.1°F (-3.3°C) and a low of 12.6°F (-10.8°C).
With an average relative humidity of 86%, January is the most humid month in Oacoma, South Dakota.
In Oacoma, South Dakota, during the entire year, the rain falls for 107.6 days and collects up to 17.83" (453mm) of precipitation.
January through April, October through December are months with snowfall in Oacoma, South Dakota.
In Oacoma, during the entire year, snow falls for 50.9 days and aggregates up to 17.87" (454mm) of snow.
The month with the least sunshine in Oacoma, South Dakota, is January, with an average of 4.7h of sunshine.
February is the month with the most snowfall in Oacoma. Snow falls for 11.7 days and accumulates 3.66" (93mm) of snow.
February is the month with the lowest UV index, 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.
In Oacoma, snow does not fall in May through September.
The month with the most rainfall in Oacoma is June, when the rain falls for 14.6 days and typically aggregates up to 3.03" (77mm) of precipitation.
With an average of 15h and 24min of daylight, June has the longest days of the year.
The months with the highest UV index in Oacoma, South Dakota, are June through August, with an average maximum UV index of 6.
July, with its average high-temperature of 88°F (31.1°C) and an average low-temperature of 66.2°F (19°C), holds the record as the warmest month in Oacoma, South Dakota.
July has the most sunshine of the year in Oacoma, with an average of 11.4h of sunshine.
With an average relative humidity of 58%, September is the least humid month in Oacoma.
The month with the least rainfall in Oacoma is November, when the rain falls for 4.1 days and typically collects 0.55" (14mm) of precipitation.
December has the shortest days of the year in Oacoma, with an average of 9h and 0min of daylight.
Average temperature
Oacoma, SD
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (26.1°F).
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure
Oacoma, SD
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.05"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.91"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.91"Hg - Average pressure in August:
29.91"Hg - Average pressure in September:
29.95"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 January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Oacoma, SD
- Average wind speed in January:
10.3mph - Average wind speed in February:
9.9mph - Average wind speed in March:
10.6mph - Average wind speed in April:
11.3mph - Average wind speed in May:
10.4mph - Average wind speed in June:
9.8mph
- Average wind speed in July:
9.2mph - Average wind speed in August:
9.1mph - Average wind speed in September:
10.3mph - Average wind speed in October:
10.7mph - Average wind speed in November:
10.1mph - Average wind speed in December:
10mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).
Average humidity
Oacoma, SD
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is September (58%).
Average rainfall
Oacoma, SD
- Average rainfall in January:
0.59" - Average rainfall in February:
0.67" - Average rainfall in March:
1.26" - Average rainfall in April:
1.89" - Average rainfall in May:
2.8" - Average rainfall in June:
3.03"
- Average rainfall in July:
2.28" - Average rainfall in August:
1.5" - Average rainfall in September:
1.18" - Average rainfall in October:
1.14" - Average rainfall in November:
0.55" - Average rainfall in December:
0.94"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is November (0.55").
Average rainfall days
Oacoma, SD
- Average rainfall days in January:
4.8 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
11.8 days - Average rainfall days in August:
11 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
7.8 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
3.9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall
Oacoma, SD
The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Oacoma, SD
- Average snowfall days in January:
11.7 days - Average snowfall days in February:
11.7 days - Average snowfall days in March:
8.3 days - Average snowfall days in April:
3.4 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:
1.6 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
9.6 days
The months with the highest number of snowfall days are January and February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Oacoma, 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 42min - Average sunshine in February:
5h and 48min - Average sunshine in March:
6h and 48min - Average sunshine in April:
7h and 54min - Average sunshine in May:
9h and 30min - Average sunshine in June:
10h and 48min
- Average sunshine in July:
11h and 24min - Average sunshine in August:
11h and 0min - Average sunshine in September:
8h and 48min - Average sunshine in October:
6h and 48min - Average sunshine in November:
6h and 6min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days
Oacoma, SD
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
16.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
12.1 days - Average sunshine days in June:
12.4 days
- Average sunshine days in July:
15.9 days - Average sunshine days in August:
17.2 days - Average sunshine days in September:
19.6 days - Average sunshine days in October:
19.9 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
19.5 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is April (11.8 days).
Average UV index
Oacoma, SD
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover
Oacoma, SD
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility
Oacoma, 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).
