Expand
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, like December, is another subzero cold winter month in Allerton, Iowa, with an average temperature fluctuating between 16.5°F (-8.6°C) and 30°F (-1.1°C). The lowest temperatures are recorded in January, with averages reaching a high of 30°F (-1.1°C) and a low of 16.5°F (-8.6°C). Weather in January »
Weather in February
February, the last month of the winter in Allerton, is an icy month, with an average temperature ranging between max 34.2°F (1.2°C) and min 19.8°F (-6.8°C). The onset of February manifests an average high-temperature of an icy 34.2°F (1.2°C), demonstrating a minor variation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Allerton, is a frosty month, with an average temperature fluctuating between 48.7°F (9.3°C) and 33.4°F (0.8°C). The onset of March witnesses a clear shift in the average high-temperature, escalating from a cold 34.2°F (1.2°C) in February to a frosty 48.7°F (9.3°C). Weather in March »
Weather in April
April is a moderate spring month in Allerton, Iowa, with an average temperature ranging between min 42.8°F (6°C) and max 60.4°F (15.8°C). The average high-temperature increases in April, moving 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 an average temperature fluctuating between 69.4°F (20.8°C) and 52.9°F (11.6°C). Allerton's weather in May presents a rise in the average high-temperature, moving from a moderate 60.4°F (15.8°C) in April to an agreeable 69.4°F (20.8°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Allerton, Iowa, with an average temperature ranging between min 63.1°F (17.3°C) and max 79.7°F (26.5°C). Allerton's weather in June presents a rise in the average high-temperature, moving from an agreeable 69.4°F (20.8°C) in May to a moderately hot 79.7°F (26.5°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Allerton, Iowa, with an average temperature ranging between max 83.3°F (28.5°C) and min 66°F (18.9°C). July temperatures tend to peak at an average high of 83.3°F (28.5°C) and dip to a low of 66°F (18.9°C). July's heat index is appraised at a tropical 93.2°F (34°C). Weather in July »
Weather in August
August, the last month of the summer in Allerton, is another warm month, with an average temperature varying between 63.7°F (17.6°C) and 82°F (27.8°C). The introduction of August notes a subtle temperature variation to a still moderately hot 82°F (27.8°C) from July's 83.3°F (28.5°C). Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Allerton, Iowa, with an average temperature fluctuating between 56.5°F (13.6°C) and 75.9°F (24.4°C). September signifies a gentle decline in Allerton's average high-temperature, easing from 82°F (27.8°C) in August to a still warm 75.9°F (24.4°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Allerton, Iowa, with an average temperature ranging between max 61.7°F (16.5°C) and min 44.4°F (6.9°C). October suggests a modest reduction in the average high-temperature, shifting 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
November, the last month of the autumn in Allerton, is also a frosty month, with an average temperature fluctuating between 48.4°F (9.1°C) and 33.3°F (0.7°C). A decrease in the average high-temperature is observed during November, shifting from a comfortable 61.7°F (16.5°C) in October to a frosty 48.4°F (9.1°C). Weather in November »
Weather in December
The first month of the winter, December, is also an icy month in Allerton, Iowa, with an average temperature ranging between min 23.5°F (-4.7°C) and max 35.6°F (2°C). The onset of December is marked by a decrease in temperature, transitioning from a chilly 48.4°F (9.1°C) in November to an icy 35.6°F (2°C). Weather in December »
Updated: Jun 26, 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 coldest month?
Allerton's temperature records reveal January as the coldest month, marked by average highs of 30°F (-1.1°C) and lows of 16.5°F (-8.6°C).
What is the driest month?
The months with the least rainfall are January and December Rain falls for 4.5 days and accumulates 0.71" (18mm) of rain.
How much does it rain?
Throughout the year, there are 125.7 rainfall days, and 20.39" (518mm) of precipitation is accumulated.
When does it snow?
January through May, October through December are months with snowfall.
When does it snow the most?
The month with the most snowfall is January, when snow falls for 8.6 days and typically aggregates up to 3.23" (82mm) of snow.
How much does it snow?
In Allerton, 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?
The month with the least sunshine is January, with an average of 4.3h of sunshine.
What is the month with the lowest UV index?
The month with the lowest UV index is January, with an average maximum UV index of 1.
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 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?
The most humid month is June, with an average relative humidity of 83%.
What is the wettest month?
June is the month with the most rainfall. 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 in Allerton.
When are the longest days?
The month with the longest days is June, with an average of 15h and 0min of daylight.
When is the highest UV index?
The months with the highest UV index are June through August, with an average maximum UV index of 6.
What month is the hottest?
In Allerton, the average temperatures in July are the highest, with a peak at 83.3°F (28.5°C) and a low of 66°F (18.9°C).
What month has the most sunshine?
July has the most sunshine of the year in Allerton, with an average of 10.4h of sunshine.
What is the least humid month in Allerton?
The least humid month is October, with an average relative humidity of 72%.
What is the month with the shortest days?
With an average of 9h and 18min of daylight, December has the shortest days of the year.
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
Weather forecast for your location
1. Click Locate me button
2. Allow the app to use your location
2. Allow the app to use your location