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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
Climate and monthly weather forecast
Weather in January
January, like December, in Denby, South Dakota, is another cold winter month, with an average temperature ranging between min 18.1°F (-7.7°C) and max 32.5°F (0.3°C). January's onset sees an average high-temperature of a still cold 32.5°F (0.3°C), exhibiting a slight fluctuation from the previous month. Weather in January »
Weather in February
February, the last month of the winter in Denby, is also a wintry month, with an average temperature fluctuating between 33.8°F (1°C) and 18.9°F (-7.3°C). The transition into February marks the average high-temperature at a still icy 33.8°F (1°C), differing minimally from January's 32.5°F (0.3°C). Weather in February »
Weather in March
March, the first month of the spring in Denby, is a chilly month, with an average temperature fluctuating between 30.6°F (-0.8°C) and 48.7°F (9.3°C). A clear escalation in the average high-temperature marks the arrival of March, surging 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 is a refreshing spring month in Denby, South Dakota, 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). A slight uplift of average high-temperatures is noted in April, with temperatures adjusting 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
May, the last month of the spring in Denby, is a refreshing month, with an average temperature varying between 46.9°F (8.3°C) and 66.2°F (19°C). As Denby enters May, the average high-temperature increases from the a mild 55.9°F (13.3°C) of April to an enjoyable 66.2°F (19°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Denby, South Dakota, with temperature in the range of an average low of 58.6°F (14.8°C) and an average high of 79.9°F (26.6°C). June brings a temperature change, with average high-temperatures moving from May's refreshing 66.2°F (19°C) to a moderately hot 79.9°F (26.6°C). Weather in June »
Weather in July
July in Denby, South Dakota, is a hot summer month, with an average temperature fluctuating between 87.6°F (30.9°C) and 65.5°F (18.6°C). The warmest period is July, when temperatures fluctuate between an average high of 87.6°F (30.9°C) and a low of 65.5°F (18.6°C). The heat index value for July is computed to be a hot 89.6°F (32°C). Weather in July »
Weather in August
August, the last month of the summer in Denby, is another warm month, with an average temperature varying between 64°F (17.8°C) and 85.6°F (29.8°C). The arrival of August denotes a barely perceptible change in the average high-temperatures to a moderately hot 85.6°F (29.8°C) from July's 87.6°F (30.9°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Denby, South Dakota, with an average temperature fluctuating between 77°F (25°C) and 55.9°F (13.3°C). The arrival of September suggests a slight decrease in the average high-temperature, moving from a moderately hot 85.6°F (29.8°C) in August to a still warm 77°F (25°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in Denby, South Dakota, with an average temperature fluctuating between 58.5°F (14.7°C) and 41°F (5°C). Denby's October weather is marked by a distinct drop in high-temperatures, declining from a warm 77°F (25°C) in September to a mild 58.5°F (14.7°C). Weather in October »
Weather in November
November, the last month of the autumn in Denby, is also a frosty month, with temperature in the range of an average high of 46.2°F (7.9°C) and an average low of 29.8°F (-1.2°C). The onset of November comes with a shift in the average high-temperature, falling from a moderate 58.5°F (14.7°C) in October to a frosty 46.2°F (7.9°C). Weather in November »
Weather in December
December, the first month of the winter in Denby, is also a wintry month, with an average temperature ranging between min 18.7°F (-7.4°C) and max 32.4°F (0.2°C). With average temperatures fluctuating between a high of 32.4°F (0.2°C) and a low of 18.7°F (-7.4°C), December stands out as the coldest month. Weather in December »
Updated: Jul 25, 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
What is the most humid month?
With an average relative humidity of 80%, January is the most humid month.
What is the driest month in Denby?
The month with the least rainfall is January, when the rain falls for 3.5 days and typically collects 0.55" (14mm) of precipitation.
How much does it rain?
In Denby, during the entire year, the rain falls for 86.7 days and collects up to 13.66" (347mm) of precipitation.
When does it snow?
Months with snowfall are January through May, September through December.
How many days does it snow?
Throughout the year, there are 47.4 snowfall days, and 22.72" (577mm) of snow is accumulated.
When is the lowest UV index?
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2.
When does it snow the most?
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?
February has the least sunshine of the year, with an average of 5.2h of sunshine.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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 wettest month?
The month with the most rainfall in Denby 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 Denby, snow does not fall in June through August.
When are the longest days?
The month with the longest days is June, with an average of 15h and 18min of daylight.
What is the warmest month?
With average high and low temperatures of 87.6°F (30.9°C) and 65.5°F (18.6°C) respectively, July is Denby's warmest month.
What is the month with the highest UV index?
With an average maximum UV index of 7, July is the month with the highest UV index.
What is the least humid month?
With an average relative humidity of 48%, August is the least humid month.
What month has the most sunshine?
The month with the most sunshine is August, with an average of 11.8h of sunshine.
What part of the year is the coldest?
In Denby, the average lowest temperatures are observed in December, with a high of 32.4°F (0.2°C) and a low of 18.7°F (-7.4°C).
What is the month with the shortest days?
With an average of 9h and 6min of daylight, December has the shortest days of the year.
Average temperature
Denby, 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
Denby, 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
Denby, 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
Denby, SD
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (48%).
Average rainfall
Denby, 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
Denby, 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
Denby, 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
Denby, 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
Denby, SD
- Average daylight in January:
9h and 2min - Average daylight in February:
10h and 4min - 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 1min
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 6min).
- 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
Denby, 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
Denby, 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
Denby, 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
Denby, 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).