Climate and monthly weather forecastAgar, SD
Climate and monthly weather forecast
Weather in January
January, the same as December, in Agar, South Dakota, is another subzero cold winter month, with an average temperature ranging between max 22.6°F (-5.2°C) and min 9.1°F (-12.7°C). January is the month when Agar sees the lowest average temperatures, with a high of 22.6°F (-5.2°C) and a low of 9.1°F (-12.7°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Agar, South Dakota, with an average temperature fluctuating between 25.2°F (-3.8°C) and 11.8°F (-11.2°C). The arrival of February sees an average high-temperature of a still freezing cold 25.2°F (-3.8°C), hardly diverging from January's 22.6°F (-5.2°C). Weather in February »Weather in March
The first month of the spring, March, is an icy month in Agar, South Dakota, with an average temperature ranging between min 25.5°F (-3.6°C) and max 39.9°F (4.4°C). In March, the meteorological conditions markedly change with the average high-temperature ascending from a freezing cold 25.2°F (-3.8°C) in February to a cold 39.9°F (4.4°C). Weather in March »Weather in April
April in Agar, South Dakota, is a cool spring month, with an average temperature ranging between min 36.7°F (2.6°C) and max 54°F (12.2°C). With the beginning of April, Agar's average high-temperature sees an increase, transitioning from a cold 39.9°F (4.4°C) in March to a cool 54°F (12.2°C). Weather in April »Weather in May
May, the last month of the spring in Agar, is an enjoyable month, with an average temperature fluctuating between 66.2°F (19°C) and 47.8°F (8.8°C). May brings an increase in the average high-temperature, progressing from a cool 54°F (12.2°C) in April to a comfortable 66.2°F (19°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Agar, South Dakota, with an average temperature varying between 58.5°F (14.7°C) and 77.9°F (25.5°C). June brings an increase in the average high-temperature, progressing from a refreshing 66.2°F (19°C) in May to a moderately hot 77.9°F (25.5°C). Weather in June »Weather in July
July, like June, in Agar, South Dakota, is a moderately hot summer month, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 85.8°F (29.9°C). In Agar, the highest average temperatures are observed in July, with a high of 85.8°F (29.9°C) and a low of 64.9°F (18.3°C). For July, the heat index is appraised at a tropical 89.6°F (32°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Agar, South Dakota, with temperature in the range of an average low of 63°F (17.2°C) and an average high of 83.8°F (28.8°C). August's commencement is accompanied by an average high-temperature of a still warm 83.8°F (28.8°C), diverging marginally from July's 85.8°F (29.9°C). Weather in August »Weather in September
September, the first month of the autumn in Agar, is still a warm month, with an average temperature fluctuating between 74.5°F (23.6°C) and 54.5°F (12.5°C). September's arrival corresponds with a decrease in average high-temperatures, from August's 83.8°F (28.8°C) to a still moderately hot 74.5°F (23.6°C). Weather in September »Weather in October
October, the same as September, in Agar, South Dakota, is another refreshing autumn month, with temperature in the range of an average low of 40.6°F (4.8°C) and an average high of 55.9°F (13.3°C). A decrease in the average high-temperature marks October, falling from September's warm 74.5°F (23.6°C) to a mild 55.9°F (13.3°C). Weather in October »Weather in November
November, the last month of the autumn in Agar, is another cold month, with an average temperature varying between 41.9°F (5.5°C) and 27.9°F (-2.3°C). In Agar, the beginning of November is marked by a lowered average high-temperature, shifting from October's mild 55.9°F (13.3°C) to an icy 41.9°F (5.5°C). Weather in November »Weather in December
The first month of the winter, December, is still a freezing cold month in Agar, South Dakota, with an average temperature varying between 14.2°F (-9.9°C) and 25.5°F (-3.6°C). As November gives way to December, the average high-temperature displays a considerable decrease, falling from a wintry 41.9°F (5.5°C) to a subzero cold 25.5°F (-3.6°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Agar, SD
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (22.6°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure
Agar, 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:
29.94"Hg - Average pressure in May:
29.92"Hg - Average pressure in June:
29.84"Hg
- Average pressure in July:
29.9"Hg - Average pressure in August:
29.9"Hg - Average pressure in September:
29.95"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.14"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed
Agar, SD
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.1mph - Average wind speed in March:
10.8mph - Average wind speed in April:
11.8mph - Average wind speed in May:
11mph - Average wind speed in June:
10.5mph
- Average wind speed in July:
9.9mph - Average wind speed in August:
9.7mph - Average wind speed in September:
11.1mph - Average wind speed in October:
11.7mph - Average wind speed in November:
10.6mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is April (11.8mph).
The calmest month (with the lowest average wind speed) is August (9.7mph).
Average humidity
Agar, SD
The month with the highest relative humidity is January (88%).
The months with the lowest relative humidity are August and September (56%).
Average rainfall
Agar, SD
- Average rainfall in January:
0.55" - Average rainfall in February:
0.75" - Average rainfall in March:
1.06" - Average rainfall in April:
1.61" - Average rainfall in May:
2.32" - Average rainfall in June:
2.8"
The wettest month (with the highest rainfall) is June (2.8").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Agar, SD
- Average rainfall days in January:
2.8 days - Average rainfall days in February:
1.9 days - Average rainfall days in March:
6.5 days - Average rainfall days in April:
11.1 days - Average rainfall days in May:
13.7 days - Average rainfall days in June:
14.4 days
- Average rainfall days in July:
12.3 days - Average rainfall days in August:
11.3 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
7.9 days - Average rainfall days in November:
4.1 days - Average rainfall days in December:
3.3 days
The month with the highest number of rainy days is June (14.4 days).
The month with the least rainy days is February (1.9 days).
Average snowfall
Agar, SD
- Average snowfall in January:
3.19" - Average snowfall in February:
5.04" - Average snowfall in March:
3.43" - Average snowfall in April:
2.64" - Average snowfall in May:
0.31" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Agar, SD
- Average snowfall days in January:
12.8 days - Average snowfall days in February:
12.3 days - Average snowfall days in March:
10.1 days - Average snowfall days in April:
4.9 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:
2.3 days - Average snowfall days in November:
5.8 days - Average snowfall days in December:
11.2 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Agar, 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 54min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 12min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
3h and 54min - Average sunshine in February:
5h and 0min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 36min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 30min
- Average sunshine in July:
11h and 12min - Average sunshine in August:
10h and 42min - Average sunshine in September:
8h and 36min - Average sunshine in October:
6h and 36min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days
Agar, SD
- Average sunshine days in January:
16.6 days - Average sunshine days in February:
15.5 days - Average sunshine days in March:
14.9 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
14.6 days - Average sunshine days in June:
13.1 days
- Average sunshine days in July:
15.7 days - Average sunshine days in August:
16.7 days - Average sunshine days in September:
19.6 days - Average sunshine days in October:
20.5 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
17.8 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (13.1 days).
Average UV index
Agar, 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, November and December (UV index 1).
Average cloud cover
Agar, 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 22).
Average visibility
Agar, 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).





