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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 a freezing cold winter month in McCullom Lake, Illinois, with temperature in the range of an average high of 26.6°F (-3°C) and an average low of 14.9°F (-9.5°C). In McCullom Lake, January records the lowest average temperatures, peaking at 26.6°F (-3°C) and reaching a low of 14.9°F (-9.5°C). Weather in January »
Weather in February
The last month of the winter, February, is also a subzero cold month in McCullom Lake, Illinois, with temperature in the range of an average low of 18°F (-7.8°C) and an average high of 30.2°F (-1°C). McCullom Lake's average high-temperature in February sits at a still freezing cold 30.2°F (-1°C), showing little difference from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a frosty month in McCullom Lake, Illinois, with an average temperature ranging between max 42.8°F (6°C) and min 28.9°F (-1.7°C). McCullom Lake experiences a temperature shift with the start of March, with average high-temperatures moving from a freezing cold 30.2°F (-1°C) in February to a frosty 42.8°F (6°C). Weather in March »
Weather in April
April is a fresh spring month in McCullom Lake, Illinois, with temperature in the range of an average low of 38.3°F (3.5°C) and an average high of 54.3°F (12.4°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a chilly 42.8°F (6°C) to a fresh 54.3°F (12.4°C). Weather in April »
Weather in May
The last month of the spring, May, is a refreshing month in McCullom Lake, Illinois, with temperature in the range of an average low of 49.3°F (9.6°C) and an average high of 66.4°F (19.1°C). McCullom Lake in May experiences an increase in the average high-temperature, moving from April's cool 54.3°F (12.4°C) to an enjoyable 66.4°F (19.1°C). Weather in May »
Weather in June
June, the first month of the summer in McCullom Lake, is a moderately hot month, with temperature in the range of an average high of 75.6°F (24.2°C) and an average low of 58.5°F (14.7°C). The shift from May to June is marked by an increase in the average high-temperature, moving from a refreshing 66.4°F (19.1°C) to a moderately hot 75.6°F (24.2°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in McCullom Lake, Illinois, with an average temperature varying between 79.7°F (26.5°C) and 63.1°F (17.3°C). The warmest period tends to be July, when average temperatures fluctuate between a high of 79.7°F (26.5°C) and a low of 63.1°F (17.3°C). Weather in July »
Weather in August
August, the last month of the summer in McCullom Lake, is also a moderately hot month, with an average temperature fluctuating between 61.3°F (16.3°C) and 78.1°F (25.6°C). The beginning of August reveals an average high-temperature of a still warm 78.1°F (25.6°C), showing minimal deviation from the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also an agreeable month in McCullom Lake, Illinois, with temperature in the range of an average high of 72.3°F (22.4°C) and an average low of 55°F (12.8°C). September indicates a minor shift in the average high-temperature, from August's moderately hot 78.1°F (25.6°C) to a pleasant 72.3°F (22.4°C). Weather in September »
Weather in October
October, like September, is a moderate autumn month in McCullom Lake, Illinois, with temperature in the range of an average high of 58.6°F (14.8°C) and an average low of 43.9°F (6.6°C). The onset of October coincides with a reduction in the average high-temperature, falling from an agreeable 72.3°F (22.4°C) in September to a mild 58.6°F (14.8°C). Weather in October »
Weather in November
November, the last month of the autumn in McCullom Lake, is another chilly month, with an average temperature varying between 32.2°F (0.1°C) and 44.6°F (7°C). The onset of November introduces a moderate change in McCullom Lake's weather, with average high-temperatures falling from October's refreshing 58.6°F (14.8°C) to a chilly 44.6°F (7°C). Weather in November »
Weather in December
The first month of the winter, December, is still a cold month in McCullom Lake, Illinois, with temperature in the range of an average high of 32.7°F (0.4°C) and an average low of 22.8°F (-5.1°C). The arrival of December corresponds with a reduction in the average high-temperature, down from November's frosty 44.6°F (7°C) to a wintry 32.7°F (0.4°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 McCullom Lake?
January, known for its average high temperature of 26.6°F (-3°C) and an average low temperature of 14.9°F (-9.5°C), is the coldest month in McCullom Lake, Illinois.
What is the most humid month in McCullom Lake?
The months with the highest humidity are January and February, with an average relative humidity of 85%.
How many days does it rain in McCullom Lake?
Throughout the year, there are 152.4 rainfall days, and 28.07" (713mm) of precipitation is accumulated.
When does it snow in McCullom Lake?
January through May, October through December are months with snowfall in McCullom Lake, Illinois.
What is the snowiest month in McCullom Lake?
January is the month with the most snowfall in McCullom Lake. Snow falls for 13.3 days and accumulates 5.16" (131mm) of snow.
How many days does it snow in McCullom Lake?
In McCullom Lake, during the entire year, snow falls for 49 days and aggregates up to 16.5" (419mm) of snow.
What is the month with the least sunshine in McCullom Lake?
With an average of 3.7h of sunshine, January has the least sunshine of the year in McCullom Lake.
What are the months with the lowest UV index in McCullom Lake?
January and December, with an average maximum UV index of 1, are months with the lowest UV index in McCullom Lake, Illinois.
When is Daylight Saving Time (DST) in McCullom Lake?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in McCullom Lake, Illinois, 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 McCullom Lake?
June is the month with the most rainfall in McCullom Lake. Rain falls for 17.2 days and accumulates 3.58" (91mm) of precipitation.
When it does not snow in McCullom Lake?
June through September are months without snowfall in McCullom Lake, Illinois.
When are the longest days in McCullom Lake?
With an average of 15h and 12min of daylight, June has the longest days of the year in McCullom Lake.
What is the warmest month in McCullom Lake?
July is the month when McCullom Lake sees the average highest temperatures, with a high of 79.7°F (26.5°C) and a low of 63.1°F (17.3°C).
What are the months with the most sunshine in McCullom Lake?
The months with the most sunshine in McCullom Lake are July and August, with an average of 10h of sunshine.
When is the highest UV index in McCullom Lake?
With an average maximum UV index of 6, August is the month with the highest UV index.
What is the least humid month in McCullom Lake?
October is the least humid month in McCullom Lake, with an average relative humidity of 76%.
What is the driest month in McCullom Lake?
The month with the least rainfall is December, when the rain falls for 7.9 days and typically collects 1.34" (34mm) of precipitation.
What is the month with the shortest days in McCullom Lake?
December has the shortest days of the year in McCullom Lake, with an average of 9h and 6min of daylight.
Average temperature
McCullom Lake, IL
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (26.6°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).
Average pressure
McCullom Lake, 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:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.09"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
McCullom Lake, IL
- Average wind speed in January:
10mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.6mph - Average wind speed in April:
9.8mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.4mph - Average wind speed in August:
6.2mph - Average wind speed in September:
7.3mph - Average wind speed in October:
8.8mph - Average wind speed in November:
9.5mph - Average wind speed in December:
9.3mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity
McCullom Lake, IL
The months with the highest relative humidity are January and February (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall
McCullom Lake, IL
- Average rainfall in January:
1.54" - Average rainfall in February:
1.46" - Average rainfall in March:
1.77" - Average rainfall in April:
3.46" - Average rainfall in May:
3.39" - Average rainfall in June:
3.58"
- Average rainfall in July:
2.87" - Average rainfall in August:
2.56" - Average rainfall in September:
2.09" - Average rainfall in October:
2.52" - Average rainfall in November:
1.5" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is June (3.58").
The driest month (with the least rainfall) is December (1.34").
Average rainfall days
McCullom Lake, IL
- Average rainfall days in January:
5.6 days - Average rainfall days in February:
4.9 days - Average rainfall days in March:
11.1 days - Average rainfall days in April:
16.8 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
16.1 days - Average rainfall days in September:
13.5 days - Average rainfall days in October:
14 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
7.9 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (4.9 days).
Average snowfall
McCullom Lake, IL
- Average snowfall in January:
5.16" - Average snowfall in February:
3.5" - Average snowfall in March:
1.89" - Average snowfall in April:
1.54" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is January (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
McCullom Lake, IL
- Average snowfall days in January:
13.3 days - Average snowfall days in February:
11.3 days - Average snowfall days in March:
6.8 days - Average snowfall days in April:
2.2 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:
0.5 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
10.3 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
McCullom Lake, IL
- Average daylight in January:
9h and 3min - 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 4min - 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 0min - 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 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- 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 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 0min - Average sunshine in August:
10h and 0min - Average sunshine in September:
8h and 5min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
McCullom Lake, IL
- Average sunshine days in January:
13.7 days - Average sunshine days in February:
12.1 days - Average sunshine days in March:
14.4 days - Average sunshine days in April:
10.5 days - Average sunshine days in May:
11 days - Average sunshine days in June:
10.2 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
14.3 days - Average sunshine days in October:
14.5 days - Average sunshine days in November:
16 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is November (16 days).
The month with the least sunshine days is June (10.2 days).
Average UV index
McCullom Lake, IL
The month with the highest UV index is August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
McCullom Lake, IL
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 31).
Average visibility
McCullom Lake, IL
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
McCullom Lake, Illinois, USA
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