Climate and monthly weather forecastDuncombe, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Duncombe, Iowa, is a freezing cold winter month, with temperature in the range of an average low of 12.6°F (-10.8°C) and an average high of 25.2°F (-3.8°C). January, with its high-temperature average of 25.2°F (-3.8°C) and a low-temperature average of 12.6°F (-10.8°C), is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Duncombe, is another freezing cold month, with an average temperature ranging between min 16°F (-8.9°C) and max 28.8°F (-1.8°C). The commencement of February introduces an average high-temperature of a still subzero cold 28.8°F (-1.8°C), closely mirroring the preceding month. Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Duncombe, Iowa, with an average temperature ranging between min 30.2°F (-1°C) and max 44.2°F (6.8°C). March's onset brings a clear escalation in the average high-temperature, soaring from a subzero cold 28.8°F (-1.8°C) in February to a chilly 44.2°F (6.8°C). Weather in March »Weather in April
April in Duncombe, Iowa, is a refreshing spring month, with an average temperature varying between 41.2°F (5.1°C) and 57.6°F (14.2°C). The start of April brings a shift in the average high-temperature, increasing from March's frosty 44.2°F (6.8°C) to a mild 57.6°F (14.2°C). Weather in April »Weather in May
May, the last month of the spring in Duncombe, is a pleasant month, with an average temperature ranging between min 52.5°F (11.4°C) and max 69.1°F (20.6°C). In Duncombe, the onset of May comes with an increased average high-temperature, moving from April's refreshing 57.6°F (14.2°C) to an agreeable 69.1°F (20.6°C). Weather in May »Weather in June
June, the first month of the summer in Duncombe, is a moderately hot month, with an average temperature varying between 78.4°F (25.8°C) and 61.9°F (16.6°C). June marks a rise in the average high-temperature, moving from May's pleasant 69.1°F (20.6°C) to a moderately hot 78.4°F (25.8°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Duncombe, Iowa, with temperature in the range of an average high of 80.8°F (27.1°C) and an average low of 63.9°F (17.7°C). With average high temperatures of 80.8°F (27.1°C) and lows of 63.9°F (17.7°C), July is the warmest month. The heat index in July is estimated at a tropical 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Duncombe, is another warm month, with temperature in the range of an average high of 79°F (26.1°C) and an average low of 61°F (16.1°C). Duncombe, Iowa, sees the arrival of August with an average high-temperature of a still warm 79°F (26.1°C), indicating a subtle variation from July. Weather in August »Weather in September
September, the first month of the autumn in Duncombe, is also a moderately hot month, with an average temperature ranging between max 74.3°F (23.5°C) and min 54.9°F (12.7°C). Duncombe records an average high-temperature of a still warm 74.3°F (23.5°C) in September, closely mirroring the climate of the previous month. Weather in September »Weather in October
October, the same as September, in Duncombe, Iowa, is a moderate autumn month, with temperature in the range of an average low of 43.7°F (6.5°C) and an average high of 59°F (15°C). The arrival of October signals a clear decrease in the average high-temperature, falling from a warm 74.3°F (23.5°C) in September to a refreshing 59°F (15°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Duncombe, Iowa, with an average temperature fluctuating between 44.8°F (7.1°C) and 31.5°F (-0.3°C). A shift in the average high-temperature occurs in November, reducing from a refreshing 59°F (15°C) in October to a frosty 44.8°F (7.1°C). Weather in November »Weather in December
December, the first month of the winter in Duncombe, is still a freezing cold month, with an average temperature fluctuating between 19.9°F (-6.7°C) and 30.6°F (-0.8°C). The arrival of December corresponds with a reduction in the average high-temperature, down from November's frosty 44.8°F (7.1°C) to a subzero cold 30.6°F (-0.8°C). Weather in December »Updated: Feb 12, 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
With average temperatures fluctuating between a high of 25.2°F (-3.8°C) and a low of 12.6°F (-10.8°C), January stands out as the coldest month in Duncombe, Iowa.
The most humid month in Duncombe is January, with an average relative humidity of 86%.
January is the month with the least rainfall in Duncombe. Rain falls for 4.1 days and accumulates 0.98" (25mm) of precipitation.
Throughout the year, in Duncombe, Iowa, there are 135.2 rainfall days, and 26.5" (673mm) of precipitation is accumulated.
January through May, October through December are months with snowfall in Duncombe.
In Duncombe, Iowa, during the entire year, snow falls for 41.8 days and aggregates up to 16.61" (422mm) of snow.
With an average of 3.8h of sunshine, January has the least sunshine of the year.
The month with the lowest UV index is January, with an average maximum UV index of 1.
The month with the most snowfall in Duncombe is February, when snow falls for 9.5 days and typically aggregates up to 4.65" (118mm) 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 June, when the rain falls for 18.1 days and typically aggregates up to 4.02" (102mm) of precipitation.
In Duncombe, snow does not fall in June through September.
June has the longest days of the year in Duncombe, with an average of 15h and 12min of daylight.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
With average high and low temperatures of 80.8°F (27.1°C) and 63.9°F (17.7°C) respectively, July is Duncombe's warmest month.
With an average of 10.1h of sunshine, July has the most sunshine of the year in Duncombe, Iowa.
The least humid month in Duncombe, Iowa, is October, with an average relative humidity of 69%.
The month with the shortest days in Duncombe, Iowa, is December, with an average of 9h and 6min of daylight.
Average temperature
Duncombe, IA
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.2°F).
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure
Duncombe, IA
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.14"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.88"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Duncombe, IA
- Average wind speed in January:
10.9mph - Average wind speed in February:
10.8mph - Average wind speed in March:
10.7mph - Average wind speed in April:
11mph - Average wind speed in May:
9.4mph - Average wind speed in June:
8.5mph
- Average wind speed in July:
7.2mph - Average wind speed in August:
7.3mph - Average wind speed in September:
8.5mph - Average wind speed in October:
10mph - 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 (11mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity
Duncombe, IA
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (69%).
Average rainfall
Duncombe, IA
- Average rainfall in January:
0.98" - Average rainfall in February:
1.18" - Average rainfall in March:
1.54" - Average rainfall in April:
3.03" - Average rainfall in May:
3.82" - Average rainfall in June:
4.02"
- Average rainfall in July:
2.09" - Average rainfall in August:
2.48" - Average rainfall in September:
2.6" - Average rainfall in October:
2.17" - Average rainfall in November:
1.18" - Average rainfall in December:
1.42"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days
Duncombe, IA
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
11.3 days - Average rainfall days in April:
14.9 days - Average rainfall days in May:
17.9 days - Average rainfall days in June:
18.1 days
- Average rainfall days in July:
15.8 days - Average rainfall days in August:
14.7 days - Average rainfall days in September:
12.4 days - Average rainfall days in October:
10.5 days - Average rainfall days in November:
6.8 days - Average rainfall days in December:
4.9 days
The month with the highest number of rainy days is June (18.1 days).
The month with the least rainy days is February (3.8 days).
Average snowfall
Duncombe, IA
- Average snowfall in January:
4.29" - Average snowfall in February:
4.65" - Average snowfall in March:
1.57" - Average snowfall in April:
0.94" - Average snowfall in May:
0.2" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Duncombe, IA
- Average snowfall days in January:
10.5 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
5.6 days - Average snowfall days in April:
1.9 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:
0.9 days - Average snowfall days in November:
3.4 days - Average snowfall days in December:
9.7 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Duncombe, IA
- Average daylight in January:
9h and 30min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 54min - 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 48min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
4h and 36min - Average sunshine in March:
5h and 54min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 30min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 36min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 30min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days
Duncombe, IA
- Average sunshine days in January:
17.3 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
15.4 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
11.2 days - Average sunshine days in June:
9.8 days
- Average sunshine days in July:
12 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
18.1 days - Average sunshine days in November:
18.7 days - Average sunshine days in December:
18.2 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is June (9.8 days).
Average UV index
Duncombe, IA
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Duncombe, IA
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility
Duncombe, IA
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
