Climate and monthly weather forecastDonnan, IA
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Donnan, Iowa, with an average temperature varying between 23.7°F (-4.6°C) and 10.9°F (-11.7°C). Donnan's coldest month, January, registers temperatures that range from a high of 23.7°F (-4.6°C) to a low of 10.9°F (-11.7°C). Weather in January »Weather in February
February, the last month of the winter in Donnan, is also a subzero cold month, with an average temperature ranging between min 13.8°F (-10.1°C) and max 27°F (-2.8°C). Donnan registers an average high-temperature of a still freezing cold 27°F (-2.8°C) at the commencement of February, closely related to the preceding month. Weather in February »Weather in March
The first month of the spring, March, is an icy month in Donnan, Iowa, with an average temperature ranging between min 27.9°F (-2.3°C) and max 42.4°F (5.8°C). In March, the average high-temperature increases considerably from a freezing cold 27°F (-2.8°C) in February to an icy 42.4°F (5.8°C). Weather in March »Weather in April
April is a fresh spring month in Donnan, Iowa, with an average temperature ranging between min 39°F (3.9°C) and max 54.7°F (12.6°C). Donnan in April sees a temperature change, with average high-temperatures moving from an icy 42.4°F (5.8°C) in March to a fresh 54.7°F (12.6°C). Weather in April »Weather in May
The last month of the spring, May, is a comfortable month in Donnan, Iowa, with an average temperature fluctuating between 50.4°F (10.2°C) and 66.7°F (19.3°C). The arrival of May brings an increase in high-temperatures, moving from a fresh 54.7°F (12.6°C) in April to an enjoyable 66.7°F (19.3°C). Weather in May »Weather in June
June, the first month of the summer in Donnan, is a moderately hot month, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 59.9°F (15.5°C). Donnan observes a slight ascent in average high-temperatures during June, adjusting from a refreshing 66.7°F (19.3°C) in May to a moderately hot 75.6°F (24.2°C). Weather in June »Weather in July
July, like June, in Donnan, Iowa, is another warm summer month, with an average temperature ranging between max 79°F (26.1°C) and min 62.6°F (17°C). The warmest temperatures occur during July, when averages reach a peak of 79°F (26.1°C) and a low of 62.6°F (17°C). Weather in July »Weather in August
August, the last month of the summer in Donnan, is another warm month, with an average temperature varying between 60.1°F (15.6°C) and 77.5°F (25.3°C). Donnan's shift into August sets the average high-temperature at a still warm 77.5°F (25.3°C), a figure that deviates only slightly from July's 79°F (26.1°C). Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Donnan, Iowa, with an average temperature varying between 71.6°F (22°C) and 52.9°F (11.6°C). In September, the meteorological conditions change slightly, with the average high-temperature moving from a warm 77.5°F (25.3°C) in August to a pleasant 71.6°F (22°C). Weather in September »Weather in October
October, the same as September, in Donnan, Iowa, is another refreshing autumn month, with an average temperature ranging between min 41.9°F (5.5°C) and max 57.6°F (14.2°C). October weather is marked by a drop in the average high-temperature, falling from an agreeable 71.6°F (22°C) in September to a moderate 57.6°F (14.2°C). Weather in October »Weather in November
The last month of the autumn, November, is another chilly month in Donnan, Iowa, with temperature in the range of an average high of 43.3°F (6.3°C) and an average low of 30°F (-1.1°C). Setting in of November comes with a decrease in the average high-temperature, moving from a refreshing 57.6°F (14.2°C) in October to a chilly 43.3°F (6.3°C). Weather in November »Weather in December
December, the first month of the winter in Donnan, is still a freezing cold month, with temperature in the range of an average high of 30°F (-1.1°C) and an average low of 19.4°F (-7°C). The shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 43.3°F (6.3°C) to a subzero cold 30°F (-1.1°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
January, on average, is the coldest month in Donnan, registering a high temperature of 23.7°F (-4.6°C) and a low of 10.9°F (-11.7°C).
The months with the highest humidity in Donnan, Iowa, are January and February, with an average relative humidity of 88%.
January is the month with the least rainfall in Donnan. Rain falls for 4.2 days and accumulates 1.06" (27mm) of precipitation.
In Donnan, during the entire year, the rain falls for 140.2 days and collects up to 28.7" (729mm) of precipitation.
Months with snowfall are January through May, October through December.
Throughout the year, there are 47.1 snowfall days, and 19.96" (507mm) of snow is accumulated.
The month with the least sunshine in Donnan is January, with an average of 3.6h of sunshine.
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1.
February is the month with the most snowfall. Snow falls for 10.6 days and accumulates 5.59" (142mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Donnan, 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 in Donnan, Iowa, is June, when the rain falls for 18.8 days and typically aggregates up to 4.45" (113mm) of precipitation.
June through September are months without snowfall in Donnan, Iowa.
June has the longest days of the year, with an average of 15h and 18min of daylight.
June is the month with the highest UV index in Donnan, Iowa, with an average maximum UV index of 6.
July, noted for its average high-temperature of 79°F (26.1°C) and an average low-temperature of 62.6°F (17°C), is considered the warmest month in Donnan, Iowa.
July and August, with an average of 9.9h of sunshine, are months with the most sunshine in Donnan.
October is the least humid month in Donnan, Iowa, with an average relative humidity of 74%.
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Donnan, IA
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (23.7°F).
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).
Average pressure
Donnan, IA
- Average pressure in January:
30.14"Hg - Average pressure in February:
30.13"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.89"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.08"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed
Donnan, IA
- Average wind speed in January:
10.5mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.7mph - Average wind speed in May:
9.3mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7.1mph - Average wind speed in August:
7.1mph - Average wind speed in September:
8.2mph - Average wind speed in October:
9.8mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity
Donnan, IA
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Donnan, IA
- Average rainfall in January:
1.06" - Average rainfall in February:
1.22" - Average rainfall in March:
1.77" - Average rainfall in April:
3.23" - Average rainfall in May:
3.94" - Average rainfall in June:
4.45"
The wettest month (with the highest rainfall) is June (4.45").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days
Donnan, IA
- Average rainfall days in January:
4.2 days - Average rainfall days in February:
3.3 days - Average rainfall days in March:
10.9 days - Average rainfall days in April:
15.9 days - Average rainfall days in May:
18.9 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
16.9 days - Average rainfall days in August:
14.1 days - Average rainfall days in September:
12 days - Average rainfall days in October:
11 days - Average rainfall days in November:
7.9 days - Average rainfall days in December:
6.3 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (3.3 days).
Average snowfall
Donnan, IA
- Average snowfall in January:
4.69" - Average snowfall in February:
5.59" - Average snowfall in March:
2.28" - Average snowfall in April:
1.3" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Donnan, IA
- Average snowfall days in January:
11.5 days - Average snowfall days in February:
10.6 days - Average snowfall days in March:
7 days - Average snowfall days in April:
2.6 days - Average snowfall days in May:
0.2 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 days - Average snowfall days in October:
1.2 days - Average snowfall days in November:
4.7 days - Average snowfall days in December:
9.3 days
The month with the highest number of snowfall days is January (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Donnan, 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 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - 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 6min
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:
3h and 36min - Average sunshine in February:
3h and 48min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 30min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 24min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
9h and 54min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 18min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 6min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days
Donnan, IA
- Average sunshine days in January:
17.2 days - Average sunshine days in February:
14.8 days - Average sunshine days in March:
14.1 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
8.9 days
- Average sunshine days in July:
9.9 days - Average sunshine days in August:
13.7 days - Average sunshine days in September:
15.8 days - Average sunshine days in October:
16.7 days - Average sunshine days in November:
18 days - Average sunshine days in December:
16.9 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (8.9 days).
Average UV index
Donnan, IA
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover
Donnan, IA
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility
Donnan, IA
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).
