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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 Park Forest, Illinois, with an average temperature fluctuating between 18.9°F (-7.3°C) and 29.7°F (-1.3°C). Park Forest experiences its lowest temperatures in January, with an average peak of 29.7°F (-1.3°C) and a low of 18.9°F (-7.3°C). Weather in January »
Weather in February
February, the last month of the winter in Park Forest, is a cold month, with temperature in the range of an average low of 21.2°F (-6°C) and an average high of 33.1°F (0.6°C). February's presence marks an average high-temperature of an icy 33.1°F (0.6°C), subtly varied from January's 29.7°F (-1.3°C). Weather in February »
Weather in March
March, the first month of the spring in Park Forest, is a frosty month, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 32.4°F (0.2°C). With the arrival of March, the average high-temperature transitions from a wintry 33.1°F (0.6°C) in February to a chilly 45.5°F (7.5°C). Weather in March »
Weather in April
April in Park Forest, Illinois, is a moderate spring month, with an average temperature varying between 56.7°F (13.7°C) and 41.7°F (5.4°C). April brings a temperature increase, with average high-temperatures moving from March's frosty 45.5°F (7.5°C) to a moderate 56.7°F (13.7°C). Weather in April »
Weather in May
The last month of the spring, May, is a pleasant month in Park Forest, Illinois, with an average temperature varying between 68.7°F (20.4°C) and 52.3°F (11.3°C). May's arrival signals an increase in average high-temperatures, moving from April's moderate 56.7°F (13.7°C) to an agreeable 68.7°F (20.4°C). Weather in May »
Weather in June
June, the first month of the summer in Park Forest, is a warm month, with an average temperature fluctuating between 61.7°F (16.5°C) and 77.7°F (25.4°C). June's arrival sees a rise in the average high-temperature, jumping from May's agreeable 68.7°F (20.4°C) to a warm 77.7°F (25.4°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Park Forest, Illinois, with an average temperature fluctuating between 81.3°F (27.4°C) and 65.8°F (18.8°C). Park Forest reaches its highest average temperatures in July, measuring 81.3°F (27.4°C) at the peak and 65.8°F (18.8°C) at the lowest. For most parts of July, the heat index is estimated at a hot 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 Park Forest, Illinois, with an average temperature ranging between max 80.1°F (26.7°C) and min 64.6°F (18.1°C). August's advent presents an average high-temperature of a still moderately hot 80.1°F (26.7°C), indicating a slight variation from the conditions of the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Park Forest, Illinois, with temperature in the range of an average high of 73.9°F (23.3°C) and an average low of 58.3°F (14.6°C). The arrival of September is marked by a minor reduction in average high-temperature, sliding from a moderately hot 80.1°F (26.7°C) in August to a still warm 73.9°F (23.3°C). Weather in September »
Weather in October
October, the same as September, is another comfortable autumn month in Park Forest, Illinois, with an average temperature varying between 46.9°F (8.3°C) and 61.2°F (16.2°C). October comes with a decrease in the average high-temperature, falling from a warm 73.9°F (23.3°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 Park Forest, Illinois, with temperature in the range of an average high of 46.9°F (8.3°C) and an average low of 34.9°F (1.6°C). Setting in of November comes with a decrease in the average high-temperature, moving from an enjoyable 61.2°F (16.2°C) in October to a frosty 46.9°F (8.3°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Park Forest, Illinois, with an average temperature varying between 35.6°F (2°C) and 25.9°F (-3.4°C). The decrease of average high-temperatures is mild in December, with a decline from a frosty 46.9°F (8.3°C) in November to a cold 35.6°F (2°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Park Forest?
The lowest temperatures in Park Forest are recorded in January, with averages reaching a high of 29.7°F (-1.3°C) and a low of 18.9°F (-7.3°C).
What are the most humid months in Park Forest?
January and February, with an average relative humidity of 82%, are most humid months in Park Forest.
How many days does it rain in Park Forest?
Throughout the year, in Park Forest, Illinois, there are 155.6 rainfall days, and 31.3" (795mm) of precipitation is accumulated.
When does it snow in Park Forest?
Months with snowfall in Park Forest are January through April, October through December.
When does it snow the most in Park Forest?
The month with the most snowfall is January, when snow falls for 12.6 days and typically aggregates up to 4.53" (115mm) of snow.
How much does it snow in Park Forest?
Throughout the year, in Park Forest, there are 44.6 snowfall days, and 16.46" (418mm) of snow is accumulated.
What is the month with the least sunshine in Park Forest?
The month with the least sunshine in Park Forest is January, with an average of 3.6h of sunshine.
When is Daylight Saving Time (DST) in Park Forest?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Park Forest, 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 Park Forest?
May is the month with the most rainfall in Park Forest, Illinois. Rain falls for 17.4 days and accumulates 4.17" (106mm) of precipitation.
When it does not snow in Park Forest?
May through September are months without snowfall in Park Forest.
When are the longest days in Park Forest?
With an average of 15h and 6min of daylight, June has the longest days of the year.
When is the highest UV index in Park Forest?
June and July, with an average maximum UV index of 6, are months with the highest UV index in Park Forest.
What is the hottest time of year in Park Forest?
Park Forest's warmest month, July, generally records average temperatures ranging from a high of 81.3°F (27.4°C) to a low of 65.8°F (18.8°C).
What month has the most sunshine in Park Forest?
The month with the most sunshine in Park Forest, Illinois, is August, with an average of 10.1h of sunshine.
What is the least humid month in Park Forest?
The least humid month in Park Forest is October, with an average relative humidity of 73%.
What is the driest month in Park Forest?
The month with the least rainfall in Park Forest, Illinois, is December, when the rain falls for 7.9 days and typically collects 1.54" (39mm) of precipitation.
What is the month with the shortest days in Park Forest?
The month with the shortest days in Park Forest is December, with an average of 9h and 12min of daylight.
What is the month with the lowest UV index in Park Forest?
With an average maximum UV index of 1, December is the month with the lowest UV index in Park Forest.
Average temperature
Park Forest, IL
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Park Forest, IL
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"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:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Park Forest, IL
- Average wind speed in January:
10.2mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.5mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.4mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7.3mph - Average wind speed in October:
9.1mph - Average wind speed in November:
9.8mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).
Average humidity
Park Forest, IL
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Park Forest, IL
- Average rainfall in January:
1.77" - Average rainfall in February:
1.69" - Average rainfall in March:
2.09" - Average rainfall in April:
3.43" - Average rainfall in May:
4.17" - Average rainfall in June:
3.82"
- Average rainfall in July:
3.31" - Average rainfall in August:
2.56" - Average rainfall in September:
2.48" - Average rainfall in October:
2.76" - Average rainfall in November:
1.69" - Average rainfall in December:
1.54"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days
Park Forest, IL
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
6.1 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
17.4 days - Average rainfall days in June:
17.4 days
- Average rainfall days in July:
17.6 days - Average rainfall days in August:
14.8 days - Average rainfall days in September:
13.4 days - Average rainfall days in October:
14.3 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall
Park Forest, IL
The month with the highest snowfall is January (4.53").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Park Forest, IL
- Average snowfall days in January:
12.6 days - Average snowfall days in February:
10.5 days - Average snowfall days in March:
6.1 days - Average snowfall days in April:
1.9 days - Average snowfall days in May:
0.1 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:
0.3 days - Average snowfall days in November:
4 days - Average snowfall days in December:
9.1 days
The month with the highest number of snowfall days is January (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Park Forest, 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 0min - Average sunshine in April:
7h and 4min - Average sunshine in May:
8h and 4min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
9h and 5min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 5min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days
Park Forest, IL
- Average sunshine days in January:
13 days - Average sunshine days in February:
11.8 days - Average sunshine days in March:
13.8 days - Average sunshine days in April:
10.2 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
11.1 days - Average sunshine days in August:
13.3 days - Average sunshine days in September:
14 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
16.4 days - Average sunshine days in December:
15 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is April (10.2 days).
Average UV index
Park Forest, IL
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Park Forest, IL
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility
Park Forest, IL
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Park Forest, Illinois, USA
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