Climate and monthly weather forecastCalumet Park, IL
Climate and monthly weather forecast
Weather in January
January, like December, is a freezing cold winter month in Calumet Park, Illinois, with an average temperature fluctuating between 18.9°F (-7.3°C) and 29.5°F (-1.4°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 29.5°F (-1.4°C) and a low of 18.9°F (-7.3°C). Weather in January »Weather in February
The last month of the winter, February, is an icy month in Calumet Park, Illinois, with an average temperature ranging between min 21.6°F (-5.8°C) and max 32.5°F (0.3°C). As Calumet Park transitions from January to February, the average high-temperatures adjust to a cold 32.5°F (0.3°C), nearly the same as the previous 29.5°F (-1.4°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in Calumet Park, Illinois, with an average temperature fluctuating between 32.4°F (0.2°C) and 44.2°F (6.8°C). March's arrival sees a rise in the average high-temperature, jumping from February's cold 32.5°F (0.3°C) to a chilly 44.2°F (6.8°C). Weather in March »Weather in April
April is a fresh spring month in Calumet Park, Illinois, with an average temperature fluctuating between 41.2°F (5.1°C) and 55.2°F (12.9°C). As April arrives, a rise in the average high-temperature is observed, moving from a chilly 44.2°F (6.8°C) in March to a fresh 55.2°F (12.9°C). Weather in April »Weather in May
The last month of the spring, May, is an enjoyable month in Calumet Park, Illinois, with an average temperature varying between 51.8°F (11°C) and 66.4°F (19.1°C). The start of May is characterized by an increase in the average high-temperature, transitioning from a fresh 55.2°F (12.9°C) in April to a comfortable 66.4°F (19.1°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Calumet Park, Illinois, with an average temperature ranging between max 76.3°F (24.6°C) and min 61.5°F (16.4°C). June brings a temperature increase, with average high-temperatures moving from May's comfortable 66.4°F (19.1°C) to a moderately hot 76.3°F (24.6°C). Weather in June »Weather in July
July, like June, in Calumet Park, Illinois, is another warm summer month, with an average temperature varying between 66.6°F (19.2°C) and 81°F (27.2°C). July brings the highest temperatures, with an average high of 81°F (27.2°C) and an average low of 66.6°F (19.2°C). July's average heat index is computed to be a tropical 86°F (30°C). Weather in July »Weather in August
August, the last month of the summer in Calumet Park, is another warm month, with an average temperature fluctuating between 79.9°F (26.6°C) and 65.8°F (18.8°C). Entering August, the average high-temperature is recorded at a still moderately hot 79.9°F (26.6°C), exhibiting a minimal shift from July's 81°F (27.2°C). Weather in August »Weather in September
The first month of the autumn, September, is still a warm month in Calumet Park, Illinois, with an average temperature fluctuating between 73.6°F (23.1°C) and 59.2°F (15.1°C). A mild drop in Calumet Park's average high-temperature is observed in September, transitioning from 79.9°F (26.6°C) in August to a still moderately hot 73.6°F (23.1°C). Weather in September »Weather in October
October, the same as September, in Calumet Park, Illinois, is another refreshing autumn month, with an average temperature ranging between max 60.6°F (15.9°C) and min 47.1°F (8.4°C). Calumet Park's October weather features a mild decline in high-temperatures, reducing from a moderately hot 73.6°F (23.1°C) in September to a moderate 60.6°F (15.9°C). Weather in October »Weather in November
November, the last month of the autumn in Calumet Park, is also a frosty month, with an average temperature fluctuating between 35.1°F (1.7°C) and 46.2°F (7.9°C). As Calumet Park, Illinois, steps into November, a marked temperature drop is observed, with the average high-temperature reducing from October's moderate 60.6°F (15.9°C) to a frosty 46.2°F (7.9°C). Weather in November »Weather in December
December, the first month of the winter in Calumet Park, is also a wintry month, with an average temperature varying between 35.2°F (1.8°C) and 26.4°F (-3.1°C). December indicates a shift in the average high-temperature, from November's frosty 46.2°F (7.9°C) to a wintry 35.2°F (1.8°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Calumet Park, IL
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (29.5°F).
The month with the highest average low temperature is July (66.6°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure
Calumet Park, 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:
30.09"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
Calumet Park, IL
- Average wind speed in January:
10.6mph - Average wind speed in February:
10.3mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8.4mph - Average wind speed in June:
7.5mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.7mph - Average wind speed in October:
9.5mph - Average wind speed in November:
10.1mph - Average wind speed in December:
9.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity
Calumet Park, IL
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Calumet Park, IL
- Average rainfall in January:
1.18" - Average rainfall in February:
1.18" - Average rainfall in March:
1.3" - Average rainfall in April:
2.32" - Average rainfall in May:
3.07" - Average rainfall in June:
2.95"
- Average rainfall in July:
2.8" - Average rainfall in August:
2.72" - Average rainfall in September:
1.97" - Average rainfall in October:
1.93" - Average rainfall in November:
1.18" - Average rainfall in December:
1.02"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days
Calumet Park, IL
- Average rainfall days in January:
6.2 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
15.1 days - Average rainfall days in May:
17.7 days - Average rainfall days in June:
16.1 days
- Average rainfall days in July:
18 days - Average rainfall days in August:
16.3 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
12.8 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
7.4 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
Calumet Park, IL
The month with the highest snowfall is February (3.07").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Calumet Park, IL
- Average snowfall days in January:
11.8 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
6.1 days - Average snowfall days in April:
2.3 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:
2.9 days - Average snowfall days in December:
9.4 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Calumet Park, IL
- Average daylight in January:
9h and 36min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 36min - Average daylight in June:
15h and 12min
- Average daylight in July:
14h and 48min - Average daylight in August:
13h and 48min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 48min - Average daylight in December:
9h and 12min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 42min - Average sunshine in February:
3h and 54min - Average sunshine in March:
6h and 12min - Average sunshine in April:
7h and 48min - Average sunshine in May:
8h and 54min - Average sunshine in June:
9h and 54min
- Average sunshine in July:
10h and 18min - Average sunshine in August:
10h and 30min - Average sunshine in September:
9h and 6min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 6min - Average sunshine in December:
4h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Calumet Park, IL
- Average sunshine days in January:
13.9 days - Average sunshine days in February:
13.1 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
11.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
10.7 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
10 days - Average sunshine days in September:
13 days - Average sunshine days in October:
14.9 days - Average sunshine days in November:
17.5 days - Average sunshine days in December:
15.5 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is July (9.8 days).
Average UV index
Calumet Park, IL
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Calumet 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 28).
Average visibility
Calumet Park, IL
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).





