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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, like December, is another subzero cold winter month in Grant Park, Illinois, with an average temperature varying between 30°F (-1.1°C) and 18.5°F (-7.5°C). Grant Park experiences its lowest temperatures in January, with an average peak of 30°F (-1.1°C) and a low of 18.5°F (-7.5°C). Weather in January »
Weather in February
The last month of the winter, February, is an icy month in Grant Park, Illinois, with an average temperature ranging between min 21.4°F (-5.9°C) and max 34.2°F (1.2°C). With February's arrival, Grant Park, Illinois, notes an average high-temperature of a wintry 34.2°F (1.2°C), closely following the trend of the preceding month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in Grant Park, Illinois, with an average temperature fluctuating between 32.9°F (0.5°C) and 47.1°F (8.4°C). Grant Park's transition into March is marked by a temperature shift, moving from a cold 34.2°F (1.2°C) in February to a chilly 47.1°F (8.4°C). Weather in March »
Weather in April
April is a refreshing spring month in Grant Park, Illinois, with an average temperature fluctuating between 42.6°F (5.9°C) and 58.6°F (14.8°C). As March transitions into April, Grant Park sees a rise in the average high-temperature, moving from a chilly 47.1°F (8.4°C) to a mild 58.6°F (14.8°C). Weather in April »
Weather in May
May, the last month of the spring in Grant Park, is a pleasant month, with an average temperature fluctuating between 70.7°F (21.5°C) and 54°F (12.2°C). The beginning of May signals a rise in the average high-temperature, moving from a mild 58.6°F (14.8°C) in April to a pleasant 70.7°F (21.5°C). Weather in May »
Weather in June
June, the first month of the summer in Grant Park, is a moderately hot month, with temperature in the range of an average high of 79.2°F (26.2°C) and an average low of 61.9°F (16.6°C). The embrace of June brings a minor uplift in the average high-temperature, shifting from a pleasant 70.7°F (21.5°C) in May to a moderately hot 79.2°F (26.2°C). Weather in June »
Weather in July
July, like June, in Grant Park, Illinois, is another warm summer month, with an average temperature varying between 64.2°F (17.9°C) and 81.1°F (27.3°C). Temperature readings reach their annual highs in July, averaging 81.1°F (27.3°C) and a minimum average of 64.2°F (17.9°C). The heat index value during July is evaluated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Grant Park, Illinois, with an average temperature fluctuating between 79.7°F (26.5°C) and 62.6°F (17°C). August's onset sees an average high-temperature of a still moderately hot 79.7°F (26.5°C), exhibiting a slight fluctuation from the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Grant Park, Illinois, with temperature in the range of an average high of 74.8°F (23.8°C) and an average low of 56.8°F (13.8°C). The dawn of September sees an average high-temperature of a still warm 74.8°F (23.8°C), subtly contrasting with August's 79.7°F (26.5°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Grant Park, Illinois, with an average temperature varying between 61.7°F (16.5°C) and 46.6°F (8.1°C). Onset of October comes with a temperature decline, the average high falling from a warm 74.8°F (23.8°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Grant Park, Illinois, with an average temperature varying between 47.3°F (8.5°C) and 34.5°F (1.4°C). As October transitions into November, a clear downswing in temperatures is observed, with average highs retreating from a refreshing 61.7°F (16.5°C) to a chilly 47.3°F (8.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Grant Park, Illinois, with an average temperature fluctuating between 25.7°F (-3.5°C) and 36.1°F (2.3°C). December indicates a shift in the average high-temperature, from November's frosty 47.3°F (8.5°C) to an icy 36.1°F (2.3°C). Weather in December »
[Resources]Frequently asked questions
What time of the year is the coldest in Grant Park?
January, noted for its average high-temperature of 30°F (-1.1°C) and an average low-temperature of 18.5°F (-7.5°C), is considered the coldest month in Grant Park, Illinois.
How many days does it rain in Grant Park?
In Grant Park, during the entire year, the rain falls for 132 days and collects up to 15.16" (385mm) of precipitation.
When does it snow in Grant Park?
January through April, November and December are months with snowfall in Grant Park, Illinois.
When does it snow the most in Grant Park?
January is the month with the most snowfall in Grant Park. Snow falls for 10.3 days and accumulates 1.42" (36mm) of snow.
How much does it snow in Grant Park?
In Grant Park, during the entire year, snow falls for 36.5 days and aggregates up to 5.28" (134mm) of snow.
What is the month with the least sunshine in Grant Park?
January has the least sunshine of the year, with an average of 3.7h of sunshine.
When is the lowest UV index in Grant Park?
January and December, with an average maximum UV index of 1, are months with the lowest UV index.
What is the driest month in Grant Park?
The month with the least rainfall is February, when the rain falls for 5.1 days and typically collects 0.67" (17mm) of precipitation.
When is Daylight Saving Time (DST) in Grant Park?
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 wettest month in Grant Park?
The month with the most rainfall is May, when the rain falls for 15.6 days and typically aggregates up to 2.2" (56mm) of precipitation.
When it does not snow in Grant Park?
May through October are months without snowfall in Grant Park.
When are the longest days in Grant Park?
The month with the longest days in Grant Park is June, with an average of 15h and 6min of daylight.
What are the months with the most sunshine in Grant Park?
The months with the most sunshine in Grant Park, Illinois, are June through August, with an average of 9.8h of sunshine.
What are the months with the highest UV index in Grant Park?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What is the warmest month in Grant Park?
July is the warmest month in Grant Park, with the temperature often reaching an average high of 81.1°F (27.3°C) and an average low of 64.2°F (17.9°C).
What is the most humid month in Grant Park?
The most humid month is July, with an average relative humidity of 84%.
What is the least humid month in Grant Park?
October is the least humid month, with an average relative humidity of 72%.
What is the month with the shortest days in Grant Park?
With an average of 9h and 18min of daylight, December has the shortest days of the year in Grant Park, Illinois.
Average temperature
Grant Park, IL
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30°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 (18.5°F).
Average pressure
Grant Park, IL
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"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:
30.11"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 (29.92"Hg).
Average wind speed
Grant Park, IL
- Average wind speed in January:
10.1mph - Average wind speed in February:
9.8mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.5mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.1mph - Average wind speed in October:
8.9mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity
Grant Park, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Grant Park, IL
- Average rainfall in January:
0.79" - Average rainfall in February:
0.67" - Average rainfall in March:
0.98" - Average rainfall in April:
1.57" - Average rainfall in May:
2.2" - Average rainfall in June:
1.81"
- Average rainfall in July:
1.61" - Average rainfall in August:
1.61" - Average rainfall in September:
1.1" - Average rainfall in October:
1.18" - Average rainfall in November:
0.83" - Average rainfall in December:
0.79"
The wettest month (with the highest rainfall) is May (2.2").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days
Grant Park, IL
- Average rainfall days in January:
6.4 days - Average rainfall days in February:
5.1 days - Average rainfall days in March:
10.3 days - Average rainfall days in April:
13.2 days - Average rainfall days in May:
15.6 days - Average rainfall days in June:
15 days
- Average rainfall days in July:
15.7 days - Average rainfall days in August:
13.7 days - Average rainfall days in September:
11.6 days - Average rainfall days in October:
10 days - Average rainfall days in November:
8.4 days - Average rainfall days in December:
7 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is February (5.1 days).
Average snowfall
Grant Park, IL
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Grant Park, IL
- Average snowfall days in January:
10.3 days - Average snowfall days in February:
9.1 days - Average snowfall days in March:
5.3 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:
0.2 days - Average snowfall days in November:
2.8 days - Average snowfall days in December:
7.5 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Grant Park, 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 2min
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 18min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 5min - Average sunshine in June:
9h and 5min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
9h and 5min - Average sunshine in September:
8h and 4min - Average sunshine in October:
6h and 1min - 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 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Grant Park, IL
- Average sunshine days in January:
16.9 days - Average sunshine days in February:
15 days - Average sunshine days in March:
16.3 days - Average sunshine days in April:
12.6 days - Average sunshine days in May:
12.3 days - Average sunshine days in June:
11.1 days
- Average sunshine days in July:
10.7 days - Average sunshine days in August:
12.7 days - Average sunshine days in September:
15.4 days - Average sunshine days in October:
18.2 days - Average sunshine days in November:
18.9 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is July (10.7 days).
Average UV index
Grant Park, 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
Grant Park, IL
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility
Grant Park, 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).
Grant Park, Illinois, USA
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