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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 Arlington, Illinois, is a freezing cold winter month, with an average temperature ranging between min 16.7°F (-8.5°C) and max 28.6°F (-1.9°C). With average temperatures fluctuating between a high of 28.6°F (-1.9°C) and a low of 16.7°F (-8.5°C), January stands out as the coldest month. Weather in January »
Weather in February
The last month of the winter, February, is a wintry month in Arlington, Illinois, with temperature in the range of an average high of 32.5°F (0.3°C) and an average low of 19.6°F (-6.9°C). The onset of February manifests an average high-temperature of a cold 32.5°F (0.3°C), demonstrating a minor variation from the preceding month. Weather in February »
Weather in March
March, the first month of the spring in Arlington, is a chilly month, with temperature in the range of an average low of 31.6°F (-0.2°C) and an average high of 46°F (7.8°C). The start of March brings a rise in the average high-temperature, moving from a wintry 32.5°F (0.3°C) in February to a chilly 46°F (7.8°C). Weather in March »
Weather in April
April is a refreshing spring month in Arlington, Illinois, with an average temperature varying between 57.9°F (14.4°C) and 41.7°F (5.4°C). April signals a shift in the average high-temperature, moving from March's frosty 46°F (7.8°C) to a refreshing 57.9°F (14.4°C). Weather in April »
Weather in May
May, the last month of the spring in Arlington, is a pleasant month, with an average temperature varying between 52.9°F (11.6°C) and 70.3°F (21.3°C). The start of May signals an increase in the average high-temperature, moving from a moderate 57.9°F (14.4°C) in April to an agreeable 70.3°F (21.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a moderately hot month in Arlington, Illinois, with an average temperature varying between 78.6°F (25.9°C) and 61.3°F (16.3°C). As June begins, there's a slight increase in the average high-temperature, moving from an agreeable 70.3°F (21.3°C) in May to a moderately hot 78.6°F (25.9°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Arlington, Illinois, with temperature in the range of an average high of 80.6°F (27°C) and an average low of 64.2°F (17.9°C). Arlington's temperature records reveal July as the warmest month, marked by average highs of 80.6°F (27°C) and lows of 64.2°F (17.9°C). For most parts of July, the heat index is estimated at a tropical 86°F (30°C). Weather in July »
Weather in August
August, the last month of the summer in Arlington, is another warm month, with temperature in the range of an average low of 62.1°F (16.7°C) and an average high of 79.2°F (26.2°C). With the onset of August, the average high-temperature stands at a still moderately hot 79.2°F (26.2°C), closely aligned with July's 80.6°F (27°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Arlington, Illinois, with an average temperature fluctuating between 74.1°F (23.4°C) and 55.8°F (13.2°C). The transition into September is marked with an average high-temperature of a still moderately hot 74.1°F (23.4°C), showing an insignificant shift from August's 79.2°F (26.2°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Arlington, Illinois, with temperature in the range of an average high of 61.2°F (16.2°C) and an average low of 45.3°F (7.4°C). The transition into October involves a decrease in the average high-temperature, falling from a warm 74.1°F (23.4°C) in September to a refreshing 61.2°F (16.2°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Arlington, Illinois, with an average temperature ranging between min 33.4°F (0.8°C) and max 46.6°F (8.1°C). The start of November signals a considerable reduction in the average high-temperature, receding from an enjoyable 61.2°F (16.2°C) in October to a frosty 46.6°F (8.1°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Arlington, Illinois, with an average temperature fluctuating between 24.1°F (-4.4°C) and 34.5°F (1.4°C). With December's arrival, Arlington sees a decrease in average high-temperatures, moving from a chilly 46.6°F (8.1°C) in November to an icy 34.5°F (1.4°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
What time of the year is the coldest in Arlington?
In Arlington, January is known for its average lowest temperatures, reaching a high of 28.6°F (-1.9°C) and a low of 16.7°F (-8.5°C).
What is the driest month in Arlington?
The months with the least rainfall in Arlington, Illinois, are January, February, November and December Rain falls for 3.6 days and accumulates 0.51" (13mm) of rain.
How many days does it rain in Arlington?
Throughout the year, in Arlington, Illinois, there are 107.9 rainfall days, and 9.96" (253mm) of precipitation is accumulated.
When does it snow in Arlington?
Months with snowfall in Arlington are January through April, October through December.
What is the snowiest month in Arlington?
January is the month with the most snowfall in Arlington. Snow falls for 8.6 days and accumulates 0.98" (25mm) of snow.
How much does it snow in Arlington?
In Arlington, Illinois, during the entire year, snow falls for 29.3 days and aggregates up to 3.86" (98mm) of snow.
What is the month with the least sunshine in Arlington?
January has the least sunshine of the year in Arlington, with an average of 3.7h of sunshine.
What is the month with the lowest UV index in Arlington?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Arlington, Illinois.
When is Daylight Saving Time (DST) in Arlington?
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 rainiest month in Arlington?
May is the month with the most rainfall. Rain falls for 13.8 days and accumulates 1.42" (36mm) of precipitation.
When it does not snow in Arlington?
May through September are months without snowfall.
When are the longest days in Arlington?
With an average of 15h and 6min of daylight, June has the longest days of the year in Arlington.
What are the months with the most sunshine in Arlington?
June through August, with an average of 9.5h of sunshine, are months with the most sunshine in Arlington.
What are the months with the highest UV index in Arlington?
The months with the highest UV index in Arlington are June and July, with an average maximum UV index of 6.
What are the warmest months in Arlington?
The month of July sees the average highest temperatures in Arlington, Illinois, reaching 80.6°F (27°C) at the peak and 64.2°F (17.9°C) at the low.
What is the most humid month in Arlington?
July is the most humid month in Arlington, Illinois, with an average relative humidity of 85%.
What is the least humid month in Arlington?
The least humid month is October, with an average relative humidity of 73%.
What is the month with the shortest days in Arlington?
With an average of 9h and 12min of daylight, December has the shortest days of the year in Arlington.
Average temperature
Arlington, IL
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (28.6°F).
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure
Arlington, IL
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Arlington, IL
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.1mph - Average wind speed in March:
9.9mph - Average wind speed in April:
10.3mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.6mph
- Average wind speed in July:
6.5mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.4mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.6mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Arlington, IL
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Arlington, IL
- Average rainfall in January:
0.51" - Average rainfall in February:
0.51" - Average rainfall in March:
0.63" - Average rainfall in April:
1.3" - Average rainfall in May:
1.42" - Average rainfall in June:
1.06"
- Average rainfall in July:
1.02" - Average rainfall in August:
0.87" - Average rainfall in September:
0.71" - Average rainfall in October:
0.91" - Average rainfall in November:
0.51" - Average rainfall in December:
0.51"
The wettest month (with the highest rainfall) is May (1.42").
The driest months (with the least rainfall) are January, February, November and December (0.51").
Average rainfall days
Arlington, IL
- Average rainfall days in January:
3.6 days - Average rainfall days in February:
3.8 days - Average rainfall days in March:
8.8 days - Average rainfall days in April:
11.2 days - Average rainfall days in May:
13.8 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
13.1 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
8.5 days - Average rainfall days in October:
9.3 days - Average rainfall days in November:
6.2 days - Average rainfall days in December:
4.6 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (3.6 days).
Average snowfall
Arlington, IL
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Arlington, IL
- Average snowfall days in January:
8.6 days - Average snowfall days in February:
6.7 days - Average snowfall days in March:
4 days - Average snowfall days in April:
1.3 days - Average snowfall days in May:
0 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:
0.4 days - Average snowfall days in November:
2.3 days - Average snowfall days in December:
6 days
The month with the highest number of snowfall days is January (8.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Arlington, IL
- 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 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 2min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 3min - Average sunshine in August:
9h and 3min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Arlington, IL
- Average sunshine days in January:
21.4 days - Average sunshine days in February:
19.5 days - Average sunshine days in March:
18.6 days - Average sunshine days in April:
16.1 days - Average sunshine days in May:
14.8 days - Average sunshine days in June:
14.3 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
19.4 days - Average sunshine days in October:
20.1 days - Average sunshine days in November:
21.5 days - Average sunshine days in December:
21.8 days
The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is July (13.3 days).
Average UV index
Arlington, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Arlington, IL
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 33).
Average visibility
Arlington, IL
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Arlington, Illinois, USA
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