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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, is a wintry winter month in Allen, South Dakota, with an average temperature fluctuating between 18.1°F (-7.7°C) and 32.5°F (0.3°C). The ushering in of January brings an average high-temperature of a still wintry 32.5°F (0.3°C), closely mirroring the 32.4°F (0.2°C) of December. Weather in January »
Weather in February
The last month of the winter, February, is also an icy month in Allen, South Dakota, with an average temperature ranging between max 33.8°F (1°C) and min 18.9°F (-7.3°C). February records an average high-temperature of a still icy 33.8°F (1°C), indicating a minor variation from the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Allen, South Dakota, with an average temperature varying between 48.7°F (9.3°C) and 30.6°F (-0.8°C). Allen experiences a noticeable temperature shift with the start of March, with average high-temperatures moving from a cold 33.8°F (1°C) in February to a frosty 48.7°F (9.3°C). Weather in March »
Weather in April
April in Allen, South Dakota, is a refreshing spring month, with temperature in the range of an average low of 37.6°F (3.1°C) and an average high of 55.9°F (13.3°C). The start of April is characterized by a subtle increase in the average high-temperature, transitioning from a chilly 48.7°F (9.3°C) in March to a refreshing 55.9°F (13.3°C). Weather in April »
Weather in May
The last month of the spring, May, is an enjoyable month in Allen, South Dakota, with an average temperature varying between 66.2°F (19°C) and 46.9°F (8.3°C). May's arrival sees a rise in the average high-temperature, jumping from April's mild 55.9°F (13.3°C) to a comfortable 66.2°F (19°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Allen, South Dakota, with an average temperature varying between 58.6°F (14.8°C) and 79.9°F (26.6°C). With the onset of June, Allen's weather sees a temperature rise, transitioning from a comfortable 66.2°F (19°C) in May to a moderately hot 79.9°F (26.6°C). Weather in June »
Weather in July
July in Allen, South Dakota, is a tropical summer month, with temperature in the range of an average high of 87.6°F (30.9°C) and an average low of 65.5°F (18.6°C). In Allen, the highest average temperatures are observed in July, with a high of 87.6°F (30.9°C) and a low of 65.5°F (18.6°C). For most parts of July, the 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 Allen, is also a moderately hot month, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 64°F (17.8°C). At the onset of August, Allen records an average high-temperature of a warm 85.6°F (29.8°C), showing little deviation from the preceding month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Allen, South Dakota, with temperature in the range of an average high of 77°F (25°C) and an average low of 55.9°F (13.3°C). September signifies a minor drop in average high-temperature, transitioning from 85.6°F (29.8°C) in August to a still moderately hot 77°F (25°C). Weather in September »
Weather in October
October, like September, is another mild autumn month in Allen, South Dakota, with an average temperature ranging between max 58.5°F (14.7°C) and min 41°F (5°C). Witnessing a clear drop in October, the average high-temperature declines from September's moderately hot 77°F (25°C) to a refreshing 58.5°F (14.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Allen, is also a frosty month, with an average temperature ranging between max 46.2°F (7.9°C) and min 29.8°F (-1.2°C). November comes with a decrease in the average high-temperature, falling from a refreshing 58.5°F (14.7°C) in October to a frosty 46.2°F (7.9°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Allen, South Dakota, with an average temperature varying between 32.4°F (0.2°C) and 18.7°F (-7.4°C). Temperature readings reach their annual highs in December, averaging 32.4°F (0.2°C) and a minimum average of 18.7°F (-7.4°C). Weather in December »
[Resources]Frequently asked questions
What is the most humid month in Allen?
The most humid month in Allen is January, with an average relative humidity of 80%.
What is the driest month in Allen?
January is the month with the least rainfall in Allen, South Dakota. Rain falls for 3.5 days and accumulates 0.55" (14mm) of precipitation.
How much does it rain in Allen?
Throughout the year, in Allen, South Dakota, there are 86.7 rainfall days, and 13.66" (347mm) of precipitation is accumulated.
When does it snow in Allen?
January through May, September through December are months with snowfall in Allen, South Dakota.
How much does it snow in Allen?
In Allen, South Dakota, during the entire year, snow falls for 47.4 days and aggregates up to 22.72" (577mm) of snow.
When is the lowest UV index in Allen?
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Allen, South Dakota.
What is the snowiest month in Allen?
The month with the most snowfall is February, when snow falls for 11.5 days and typically aggregates up to 4.02" (102mm) of snow.
What is the month with the least sunshine in Allen?
The month with the least sunshine is February, with an average of 5.2h of sunshine.
When is Daylight Saving Time (DST) in Allen?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Allen, South Dakota, and the time zone changes from MST to MDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from MDT to MST.
What is the rainiest month in Allen?
The month with the most rainfall in Allen is May, when the rain falls for 13.1 days and typically aggregates up to 2.13" (54mm) of precipitation.
When it does not snow in Allen?
June through August are months without snowfall.
When are the longest days in Allen?
June has the longest days of the year in Allen, with an average of 15h and 18min of daylight.
What is the hottest time of year in Allen?
Allen's temperatures peak on average in July, reaching 87.6°F (30.9°C) at their highest and 65.5°F (18.6°C) at their lowest.
What is the month with the highest UV index in Allen?
With an average maximum UV index of 7, July is the month with the highest UV index.
What is the least humid month in Allen?
With an average relative humidity of 48%, August is the least humid month.
What month has the most sunshine in Allen?
With an average of 11.8h of sunshine, August has the most sunshine of the year.
What is the coldest time of year in Allen?
December, having an average high-temperature of 32.4°F (0.2°C) and an average low-temperature of 18.7°F (-7.4°C), is the coldest month.
What is the month with the shortest days in Allen?
With an average of 9h and 0min of daylight, December has the shortest days of the year.
Average temperature
Allen, SD
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is December (32.4°F).
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure
Allen, SD
- Average pressure in January:
30.13"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30"Hg - Average pressure in April:
29.92"Hg - Average pressure in May:
29.91"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:
29.94"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.05"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed
Allen, SD
- Average wind speed in January:
10.7mph - Average wind speed in February:
10.4mph - Average wind speed in March:
11.2mph - Average wind speed in April:
12.2mph - Average wind speed in May:
11.4mph - Average wind speed in June:
10.9mph
- Average wind speed in July:
10.4mph - Average wind speed in August:
10.2mph - Average wind speed in September:
11.2mph - Average wind speed in October:
11.4mph - Average wind speed in November:
10.7mph - Average wind speed in December:
10.4mph
The windiest month (with the highest average wind speed) is April (12.2mph).
The calmest month (with the lowest average wind speed) is August (10.2mph).
Average humidity
Allen, SD
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (48%).
Average rainfall
Allen, SD
- Average rainfall in January:
0.55" - Average rainfall in February:
0.79" - Average rainfall in March:
1.14" - Average rainfall in April:
1.81" - Average rainfall in May:
2.13" - Average rainfall in June:
1.42"
- Average rainfall in July:
1.26" - Average rainfall in August:
0.91" - Average rainfall in September:
1.02" - Average rainfall in October:
1.1" - Average rainfall in November:
0.67" - Average rainfall in December:
0.87"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days
Allen, SD
- Average rainfall days in January:
3.5 days - Average rainfall days in February:
2.5 days - Average rainfall days in March:
7.8 days - Average rainfall days in April:
12.6 days - Average rainfall days in May:
13.1 days - Average rainfall days in June:
10.4 days
- Average rainfall days in July:
10.1 days - Average rainfall days in August:
7.3 days - Average rainfall days in September:
6.1 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
3.3 days - Average rainfall days in December:
2.5 days
The month with the highest number of rainy days is May (13.1 days).
The months with the least rainy days are February and December (2.5 days).
Average snowfall
Allen, SD
- Average snowfall in January:
2.87" - Average snowfall in February:
4.02" - Average snowfall in March:
3.35" - Average snowfall in April:
2.09" - Average snowfall in May:
2.17" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.02").
The months with the least snowfall are June, July and August (0").
Average snowfall days
Allen, SD
- Average snowfall days in January:
10.2 days - Average snowfall days in February:
11.5 days - Average snowfall days in March:
5.8 days - Average snowfall days in April:
3.5 days - Average snowfall days in May:
1.2 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:
0.1 days - Average snowfall days in October:
2 days - Average snowfall days in November:
4.9 days - Average snowfall days in December:
8.2 days
The month with the highest number of snowfall days is February (11.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight / Average sunshine
Allen, SD
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 3min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 2min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 4min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
5h and 4min - Average sunshine in February:
5h and 1min - Average sunshine in March:
7h and 1min - Average sunshine in April:
9h and 1min - Average sunshine in May:
9h and 4min - Average sunshine in June:
11h and 1min
- Average sunshine in July:
11h and 4min - Average sunshine in August:
11h and 5min - Average sunshine in September:
10h and 1min - Average sunshine in October:
7h and 1min - Average sunshine in November:
6h and 2min - Average sunshine in December:
5h and 4min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days
Allen, SD
- Average sunshine days in January:
18.6 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
18.1 days - Average sunshine days in April:
13.2 days - Average sunshine days in May:
15.5 days - Average sunshine days in June:
18.2 days
- Average sunshine days in July:
18.3 days - Average sunshine days in August:
22.3 days - Average sunshine days in September:
22.8 days - Average sunshine days in October:
20.9 days - Average sunshine days in November:
21.4 days - Average sunshine days in December:
20.8 days
The month with the most sunshine days is September (22.8 days).
The month with the least sunshine days is April (13.2 days).
Average UV index
Allen, SD
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Allen, SD
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility
Allen, 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).
Allen, South Dakota, USA
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