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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 Coal City, Illinois, is another subzero cold winter month, with an average temperature fluctuating between 17.8°F (-7.9°C) and 29.7°F (-1.3°C). Coal City's temperature records reveal January as the coldest month, marked by average highs of 29.7°F (-1.3°C) and lows of 17.8°F (-7.9°C). Weather in January »
Weather in February
February, the last month of the winter in Coal City, is an icy month, with an average temperature fluctuating between 20.8°F (-6.2°C) and 33.6°F (0.9°C). The beginning of February records an average high-temperature of a cold 33.6°F (0.9°C), almost echoing the conditions of the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Coal City, Illinois, with an average temperature ranging between max 47.1°F (8.4°C) and min 32.5°F (0.3°C). With the beginning of March, Coal City's average high-temperature sees an increase, transitioning from a cold 33.6°F (0.9°C) in February to a frosty 47.1°F (8.4°C). Weather in March »
Weather in April
April in Coal City, Illinois, is a mild spring month, with an average temperature fluctuating between 42.4°F (5.8°C) and 58.8°F (14.9°C). The transition from March to April brings a temperature rise, with average high-temperatures increasing from a frosty 47.1°F (8.4°C) to a moderate 58.8°F (14.9°C). Weather in April »
Weather in May
May, the last month of the spring in Coal City, is an agreeable month, with an average temperature varying between 54°F (12.2°C) and 70.7°F (21.5°C). With the onset of May, Coal City's average high-temperature sees a rise, moving from April's mild 58.8°F (14.9°C) to an agreeable 70.7°F (21.5°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Coal City, Illinois, with an average temperature fluctuating between 79.2°F (26.2°C) and 61.9°F (16.6°C). June's arrival brings a modest temperature shift, moving from an agreeable 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 Coal City, Illinois, is another warm summer month, with an average temperature ranging between min 64.6°F (18.1°C) and max 81.1°F (27.3°C). Coal City's July weather, with an average high temperature of 81.1°F (27.3°C) and an average low temperature of 64.6°F (18.1°C), tends to be the warmest of the year. The average heat index in July is evaluated at a hot 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Coal City, is another warm month, with an average temperature ranging between min 62.6°F (17°C) and max 79.7°F (26.5°C). During August, Coal City observes a subtle ascent to a still moderately hot 79.7°F (26.5°C) from July's 81.1°F (27.3°C) in the average high-temperature. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Coal City, Illinois, with an average temperature varying between 56.8°F (13.8°C) and 74.8°F (23.8°C). At the onset of September, Coal City records an average high-temperature of a still moderately hot 74.8°F (23.8°C), showing little deviation from the preceding month. Weather in September »
Weather in October
October, like September, in Coal City, Illinois, is another refreshing autumn month, with an average temperature varying between 61.9°F (16.6°C) and 46°F (7.8°C). Coal City's progression into October involves a drop in the average high-temperature, receding from a moderately hot 74.8°F (23.8°C) in September to a comfortable 61.9°F (16.6°C). Weather in October »
Weather in November
The last month of the autumn, November, is another chilly month in Coal City, Illinois, with an average temperature ranging between max 47.3°F (8.5°C) and min 34.2°F (1.2°C). Coal City experiences a noticeable temperature shift with the start of November, with average high-temperatures moving from a comfortable 61.9°F (16.6°C) in October to a frosty 47.3°F (8.5°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in Coal City, Illinois, with an average temperature fluctuating between 25.5°F (-3.6°C) and 35.6°F (2°C). December shows a mild decline in the average high-temperature, falling from November's frosty 47.3°F (8.5°C) to an icy 35.6°F (2°C). Weather in December »
Updated: Jun 4, 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 time of year?
In Coal City, January is the month with the lowest recorded average temperatures, measuring a high of 29.7°F (-1.3°C) and a low of 17.8°F (-7.9°C).
How many days does it rain?
Throughout the year, there are 160.4 rainfall days, and 33.5" (851mm) of precipitation is accumulated.
When does it snow?
January through April, October through December are months with snowfall.
How many days does it snow?
Throughout the year, there are 38.7 snowfall days, and 15.39" (391mm) of snow is accumulated.
What is the month with the least sunshine in Coal City?
With an average of 3.9h of sunshine, January has the least sunshine of the year.
What is the driest month?
The months with the least rainfall are February and November Rain falls for 6 days and accumulates 1.69" (43mm) of rain.
What is the snowiest month?
The month with the most snowfall is February, when snow falls for 9.7 days and typically aggregates up to 4.29" (109mm) of snow.
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 rainiest month?
May is the month with the most rainfall in Coal City. Rain falls for 19.2 days and accumulates 4.57" (116mm) of precipitation.
When it does not snow?
May through September are months without snowfall.
When are the longest days?
The month with the longest days is June, with an average of 15h and 6min of daylight.
What is the month with the most sunshine?
June through August, with an average of 9.8h of sunshine, are months with the most sunshine in Coal City.
What is the month with the highest UV index?
June and July, with an average maximum UV index of 6, are months with the highest UV index in Coal City.
What time of the year is the hottest?
July is the month when Coal City's temperatures reach their peak, with averages of 81.1°F (27.3°C) and lows of 64.6°F (18.1°C).
What is the most humid month?
The most humid month is July, with an average relative humidity of 84%.
What is the least humid month?
With an average relative humidity of 72%, October is the least humid month.
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.
What is the month with the lowest UV index?
The month with the lowest UV index is December, with an average maximum UV index of 1.
Average temperature
Coal City, 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 (29.7°F).
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure
Coal City, 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:
30.1"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 (29.92"Hg).
Average wind speed
Coal City, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.7mph - 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:
7.3mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6mph - Average wind speed in September:
7mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.4mph - Average wind speed in December:
9.3mph
The windiest months (with the highest average wind speed) are January and April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity
Coal City, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall
Coal City, IL
- Average rainfall in January:
1.73" - Average rainfall in February:
1.69" - Average rainfall in March:
2.2" - Average rainfall in April:
3.74" - Average rainfall in May:
4.57" - Average rainfall in June:
3.98"
- Average rainfall in July:
3.58" - Average rainfall in August:
2.95" - Average rainfall in September:
2.52" - Average rainfall in October:
3.03" - Average rainfall in November:
1.69" - Average rainfall in December:
1.81"
The wettest month (with the highest rainfall) is May (4.57").
The driest months (with the least rainfall) are February and November (1.69").
Average rainfall days
Coal City, IL
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
6 days - Average rainfall days in March:
12.8 days - Average rainfall days in April:
17.3 days - Average rainfall days in May:
19.2 days - Average rainfall days in June:
18.8 days
- Average rainfall days in July:
19 days - Average rainfall days in August:
17 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
12.7 days - Average rainfall days in November:
9.9 days - Average rainfall days in December:
8.7 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is January (5.8 days).
Average snowfall
Coal City, IL
The month with the highest snowfall is February (4.29").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Coal City, IL
- Average snowfall days in January:
10.6 days - Average snowfall days in February:
9.7 days - Average snowfall days in March:
5.3 days - Average snowfall days in April:
1.8 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:
0.3 days - Average snowfall days in November:
2.5 days - Average snowfall days in December:
8.5 days
The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Coal City, 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 5min - Average sunshine in February:
4h and 0min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 5min - 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 0min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 2min
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 54min).
Average sunshine days
Coal City, IL
- Average sunshine days in January:
15.4 days - Average sunshine days in February:
13.4 days - Average sunshine days in March:
13.2 days - Average sunshine days in April:
10.3 days - Average sunshine days in May:
9.4 days - Average sunshine days in June:
9.6 days
- Average sunshine days in July:
8.6 days - Average sunshine days in August:
9.4 days - Average sunshine days in September:
14 days - Average sunshine days in October:
15.7 days - Average sunshine days in November:
17.2 days - Average sunshine days in December:
16 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is July (8.6 days).
Average UV index
Coal City, 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
Coal City, IL
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 33).
Average visibility
Coal City, IL
The months with the highest visibility are January, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are February, July and August (5mi).
Coal City, Illinois, USA
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