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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, in Allerton, Iowa, is another subzero cold winter month, with an average temperature varying between 16.5°F (-8.6°C) and 30°F (-1.1°C). January, with its high-temperature average of 30°F (-1.1°C) and a low-temperature average of 16.5°F (-8.6°C), is the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Allerton, Iowa, with an average temperature varying between 19.8°F (-6.8°C) and 34.2°F (1.2°C). The arrival of February sees a recorded average high-temperature of an icy 34.2°F (1.2°C), showing little divergence from the previous month's conditions. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Allerton, Iowa, with an average temperature fluctuating between 33.4°F (0.8°C) and 48.7°F (9.3°C). As Allerton transitions into March, the average high-temperature shows a marked escalation, increasing from a wintry 34.2°F (1.2°C) in February to a frosty 48.7°F (9.3°C). Weather in March »
Weather in April
April in Allerton, Iowa, is a moderate spring month, with temperature in the range of an average low of 42.8°F (6°C) and an average high of 60.4°F (15.8°C). As Allerton transitions into April, the average high-temperature is observed to rise from a chilly 48.7°F (9.3°C) in March to a refreshing 60.4°F (15.8°C). Weather in April »
Weather in May
The last month of the spring, May, is an agreeable month in Allerton, Iowa, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 69.4°F (20.8°C). Allerton in May experiences an increase in the average high-temperature, moving from April's mild 60.4°F (15.8°C) to an agreeable 69.4°F (20.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Allerton, Iowa, with an average temperature varying between 63.1°F (17.3°C) and 79.7°F (26.5°C). The onset of June marks an increase in the average high-temperature, moving from an agreeable 69.4°F (20.8°C) in May to a warm 79.7°F (26.5°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Allerton, Iowa, with an average temperature varying between 66°F (18.9°C) and 83.3°F (28.5°C). July, marked by an average high-temperature of 83.3°F (28.5°C) and a low-temperature of 66°F (18.9°C), is the warmest month. For July, the heat index is calculated to be a hot 93.2°F (34°C). Weather in July »
Weather in August
The last month of the summer, August, is another warm month in Allerton, Iowa, with an average temperature ranging between min 63.7°F (17.6°C) and max 82°F (27.8°C). The transition into August notes an average high-temperature of a still warm 82°F (27.8°C), revealing a mild distinction from the 83.3°F (28.5°C) in July. Weather in August »
Weather in September
September, the first month of the autumn in Allerton, is still a warm month, with an average temperature fluctuating between 75.9°F (24.4°C) and 56.5°F (13.6°C). Allerton's September weather shows a modest shift in high-temperatures, falling from August's 82°F (27.8°C) to a still warm 75.9°F (24.4°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Allerton, Iowa, with an average temperature varying between 61.7°F (16.5°C) and 44.4°F (6.9°C). October involves a decrease in temperature, down from a moderately hot 75.9°F (24.4°C) in September to a comfortable 61.7°F (16.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Allerton, Iowa, with an average temperature fluctuating between 48.4°F (9.1°C) and 33.3°F (0.7°C). November's arrival corresponds with a decrease in average high-temperatures, from October's comfortable 61.7°F (16.5°C) to a chilly 48.4°F (9.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Allerton, Iowa, with an average temperature varying between 23.5°F (-4.7°C) and 35.6°F (2°C). The move into December indicates a reduction in the average high-temperature, down from November's chilly 48.4°F (9.1°C) to an icy 35.6°F (2°C). Weather in December »
[Resources]Frequently asked questions
What are the coldest months in Allerton?
January is the coldest month in Allerton, Iowa, with the temperature often reaching an average high of 30°F (-1.1°C) and an average low of 16.5°F (-8.6°C).
What is the driest month in Allerton?
January and December are months with the least rain when the rain falls for 4.5 days and typically aggregates up to 0.71" (18mm) of rain.
How much does it rain in Allerton?
In Allerton, during the entire year, the rain falls for 125.7 days and collects up to 20.39" (518mm) of precipitation.
When does it snow in Allerton?
January through May, October through December are months with snowfall.
When does it snow the most in Allerton?
January is the month with the most snowfall. Snow falls for 8.6 days and accumulates 3.23" (82mm) of snow.
How much does it snow in Allerton?
In Allerton, Iowa, during the entire year, snow falls for 28.4 days and aggregates up to 11.34" (288mm) of snow.
What is the month with the least sunshine in Allerton?
January has the least sunshine of the year in Allerton, with an average of 4.3h of sunshine.
When is the lowest UV index in Allerton?
January is the month with the lowest UV index in Allerton, Iowa, with an average maximum UV index of 1.
When is Daylight Saving Time (DST) in Allerton?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Allerton, Iowa, 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.
What is the most humid month in Allerton?
With an average relative humidity of 83%, June is the most humid month in Allerton.
What is the rainiest month in Allerton?
June is the month with the most rainfall in Allerton. Rain falls for 16.1 days and accumulates 3.31" (84mm) of precipitation.
When it does not snow in Allerton?
June through September are months without snowfall.
When are the longest days in Allerton?
June has the longest days of the year in Allerton, with an average of 15h and 0min of daylight.
When is the highest UV index in Allerton?
The months with the highest UV index in Allerton are June through August, with an average maximum UV index of 6.
What is the hottest time of year in Allerton?
July, characterized by an average high temperature of 83.3°F (28.5°C) and a low temperature of 66°F (18.9°C), is generally the warmest month in Allerton, Iowa.
What month has the most sunshine in Allerton?
The month with the most sunshine in Allerton is July, with an average of 10.4h of sunshine.
What is the least humid month in Allerton?
October is the least humid month in Allerton, Iowa, with an average relative humidity of 72%.
What is the month with the shortest days in Allerton?
The month with the shortest days in Allerton is December, with an average of 9h and 18min of daylight.
Average temperature
Allerton, IA
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (30°F).
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure
Allerton, 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:
29.92"Hg - Average pressure in May:
29.93"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:
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 (29.89"Hg).
Average wind speed
Allerton, IA
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.5mph - Average wind speed in March:
10.6mph - Average wind speed in April:
10.4mph - Average wind speed in May:
8.8mph - Average wind speed in June:
8mph
The windiest months (with the highest average wind speed) are January and March (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity
Allerton, IA
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Allerton, IA
- Average rainfall in January:
0.71" - Average rainfall in February:
0.79" - Average rainfall in March:
1.61" - Average rainfall in April:
1.73" - Average rainfall in May:
2.76" - Average rainfall in June:
3.31"
- Average rainfall in July:
2.09" - Average rainfall in August:
2.2" - Average rainfall in September:
2.13" - Average rainfall in October:
1.38" - Average rainfall in November:
0.98" - Average rainfall in December:
0.71"
The wettest month (with the highest rainfall) is June (3.31").
The driest months (with the least rainfall) are January and December (0.71").
Average rainfall days
Allerton, IA
- Average rainfall days in January:
4.5 days - Average rainfall days in February:
4.6 days - Average rainfall days in March:
10.6 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
11 days - Average rainfall days in October:
9 days - Average rainfall days in November:
6.5 days - Average rainfall days in December:
5.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (4.5 days).
Average snowfall
Allerton, IA
- Average snowfall in January:
3.23" - Average snowfall in February:
2.87" - Average snowfall in March:
1.26" - Average snowfall in April:
1.69" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Allerton, IA
- Average snowfall days in January:
8.6 days - Average snowfall days in February:
7.6 days - Average snowfall days in March:
3.5 days - Average snowfall days in April:
0.8 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:
0.6 days - Average snowfall days in November:
1.4 days - Average snowfall days in December:
5.7 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Allerton, IA
- Average daylight in January:
9h and 4min - 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 3min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in January:
4h and 2min - Average sunshine in February:
4h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
8h and 1min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days
Allerton, IA
- Average sunshine days in January:
20.1 days - Average sunshine days in February:
17.5 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
11.1 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
12.3 days - Average sunshine days in August:
14.3 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
19.9 days - Average sunshine days in November:
21.1 days - Average sunshine days in December:
20.9 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is June (10.7 days).
Average UV index
Allerton, IA
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover
Allerton, IA
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are July, August and September (Cloud cover 29).
Average visibility
Allerton, IA
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).
Allerton, Iowa, USA
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