Climate and monthly weather forecastAlleman, IA
Climate and monthly weather forecast
Weather in January
January, the same as December, in Alleman, Iowa, is another subzero cold winter month, with an average temperature ranging between max 26.6°F (-3°C) and min 13.6°F (-10.2°C). With average high temperatures of 26.6°F (-3°C) and lows of 13.6°F (-10.2°C), January is the coldest month. Weather in January »Weather in February
February, the last month of the winter in Alleman, is another freezing cold month, with an average temperature varying between 30.7°F (-0.7°C) and 17.4°F (-8.1°C). February's beginning signals an average high-temperature of a still subzero cold 30.7°F (-0.7°C), barely different from January's 26.6°F (-3°C). Weather in February »Weather in March
March, the first month of the spring in Alleman, is a frosty month, with an average temperature varying between 31.5°F (-0.3°C) and 46°F (7.8°C). The arrival of March brings a distinct temperature shift, with the average high-temperature escalating from a freezing cold 30.7°F (-0.7°C) in February to a chilly 46°F (7.8°C). Weather in March »Weather in April
April is a mild spring month in Alleman, Iowa, with temperature in the range of an average low of 41.9°F (5.5°C) and an average high of 58.5°F (14.7°C). April signals a shift in the average high-temperature, moving from March's frosty 46°F (7.8°C) to a moderate 58.5°F (14.7°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Alleman, Iowa, with an average temperature fluctuating between 52.9°F (11.6°C) and 69.3°F (20.7°C). The arrival of May brings a temperature shift, with the average high-temperature escalating from a moderate 58.5°F (14.7°C) in April to an agreeable 69.3°F (20.7°C). Weather in May »Weather in June
June, the first month of the summer in Alleman, is a moderately hot month, with an average temperature fluctuating between 62.6°F (17°C) and 79.2°F (26.2°C). June brings a temperature increase, with average high-temperatures moving from May's agreeable 69.3°F (20.7°C) to a warm 79.2°F (26.2°C). Weather in June »Weather in July
July, the same as June, is a moderately hot summer month in Alleman, Iowa, with an average temperature ranging between max 81.9°F (27.7°C) and min 64.8°F (18.2°C). July stands out as Alleman's warmest month, with temperatures ranging between an average high of 81.9°F (27.7°C) and a low of 64.8°F (18.2°C). July's average heat index is calculated to be a hot 89.6°F (32°C). Weather in July »Weather in August
August, the last month of the summer in Alleman, is also a moderately hot month, with temperature in the range of an average low of 62.2°F (16.8°C) and an average high of 80.2°F (26.8°C). The arrival of August is marked by an average high-temperature of a still warm 80.2°F (26.8°C), bearing a close resemblance to July. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Alleman, Iowa, with an average temperature varying between 55.9°F (13.3°C) and 74.8°F (23.8°C). In Alleman, the average high-temperature in September gently drops from a moderately hot 80.2°F (26.8°C) in August to a still warm 74.8°F (23.8°C). Weather in September »Weather in October
October, like September, is another mild autumn month in Alleman, Iowa, with an average temperature fluctuating between 44.4°F (6.9°C) and 59.9°F (15.5°C). As Alleman transitions into October, the average high-temperature shows a marked reduction, decreasing from a warm 74.8°F (23.8°C) in September to a mild 59.9°F (15.5°C). Weather in October »Weather in November
November, the last month of the autumn in Alleman, is another chilly month, with temperature in the range of an average low of 32.2°F (0.1°C) and an average high of 46.4°F (8°C). As November commences, the average high-temperature shows a reduction, transitioning from a moderate 59.9°F (15.5°C) in October to a chilly 46.4°F (8°C). Weather in November »Weather in December
December, the first month of the winter in Alleman, is also a wintry month, with an average temperature ranging between min 21.4°F (-5.9°C) and max 32.5°F (0.3°C). Alleman's progression into December involves a drop in the average high-temperature, receding from a chilly 46.4°F (8°C) in November to an icy 32.5°F (0.3°C). Weather in December »Updated: Aug 7, 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
In Alleman, January is known for its average lowest temperatures, reaching a high of 26.6°F (-3°C) and a low of 13.6°F (-10.2°C).
The most humid month is January, with an average relative humidity of 84%.
The month with the least rainfall is January, when the rain falls for 4.4 days and typically collects 0.98" (25mm) of precipitation.
Throughout the year, there are 141.4 rainfall days, and 29.65" (753mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
In Alleman, during the entire year, snow falls for 44 days and aggregates up to 16.65" (423mm) of snow.
The month with the least sunshine is January, with an average of 4.1h of sunshine.
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index.
The month with the most snowfall is February, when snow falls for 10.3 days and typically aggregates up to 4.57" (116mm) of snow.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Alleman, 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.
May is the month with the most rainfall. Rain falls for 19 days and accumulates 4.65" (118mm) of precipitation.
In Alleman, snow does not fall in June through September.
With an average of 15h and 12min of daylight, June has the longest days of the year in Alleman.
The months with the highest UV index are June and July, with an average maximum UV index of 6.
July registers as the month with the average highest temperatures, reaching 81.9°F (27.7°C) at its peak and 64.8°F (18.2°C) at the lowest.
July has the most sunshine of the year, with an average of 10.2h of sunshine.
October is the least humid month, with an average relative humidity of 70%.
The month with the shortest days is December, with an average of 9h and 12min of daylight.
Average temperature
Alleman, IA
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (26.6°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure
Alleman, IA
- Average pressure in January:
30.16"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:
29.97"Hg - Average pressure in September:
30.01"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed
Alleman, IA
- Average wind speed in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.4mph - Average wind speed in April:
10.6mph - Average wind speed in May:
9mph - Average wind speed in June:
8.1mph
- Average wind speed in July:
7mph - Average wind speed in August:
7mph - Average wind speed in September:
8.1mph - Average wind speed in October:
9.6mph - Average wind speed in November:
10.3mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Alleman, IA
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Alleman, IA
- Average rainfall in January:
0.98" - Average rainfall in February:
1.14" - Average rainfall in March:
1.81" - Average rainfall in April:
3.11" - Average rainfall in May:
4.65" - Average rainfall in June:
4.37"
The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days
Alleman, IA
- Average rainfall days in January:
4.4 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
11.8 days - Average rainfall days in April:
15.4 days - Average rainfall days in May:
19 days - Average rainfall days in June:
19.3 days
- Average rainfall days in July:
16.4 days - Average rainfall days in August:
14.7 days - Average rainfall days in September:
11.9 days - Average rainfall days in October:
10.9 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is June (19.3 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
Alleman, IA
- Average snowfall in January:
4.41" - Average snowfall in February:
4.57" - Average snowfall in March:
1.61" - Average snowfall in April:
0.63" - Average snowfall in May:
0.39" - Average snowfall in June:
0"
The month with the highest snowfall is February (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Alleman, IA
- Average snowfall days in January:
11.7 days - Average snowfall days in February:
10.3 days - Average snowfall days in March:
6.3 days - Average snowfall days in April:
1.8 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:
0.9 days - Average snowfall days in November:
3.5 days - Average snowfall days in December:
9.3 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Alleman, IA
- Average daylight in January:
9h and 36min - 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 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
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 12min).
- Average sunshine in January:
4h and 6min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 0min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 36min - Average sunshine in June:
9h and 36min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
9h and 42min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 36min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days
Alleman, IA
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
11.7 days - Average sunshine days in May:
9.2 days - Average sunshine days in June:
8.4 days
- Average sunshine days in July:
10.1 days - Average sunshine days in August:
13.8 days - Average sunshine days in September:
15.5 days - Average sunshine days in October:
17.4 days - Average sunshine days in November:
18.4 days - Average sunshine days in December:
16.5 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is June (8.4 days).
Average UV index
Alleman, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover
Alleman, IA
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility
Alleman, 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).
