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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 Vernon Hills, Illinois, is another subzero cold winter month, with an average temperature varying between 27.9°F (-2.3°C) and 16.5°F (-8.6°C). With average high and low temperatures of 27.9°F (-2.3°C) and 16.5°F (-8.6°C) respectively, January is Vernon Hills's coldest month. Weather in January »
Weather in February
February, the last month of the winter in Vernon Hills, is also a subzero cold month, with an average temperature varying between 19.2°F (-7.1°C) and 31.3°F (-0.4°C). With the start of February, Vernon Hills measures an average high-temperature of a still freezing cold 31.3°F (-0.4°C), not significantly differing from January's 27.9°F (-2.3°C). Weather in February »
Weather in March
March, the first month of the spring in Vernon Hills, is a chilly month, with an average temperature varying between 43.2°F (6.2°C) and 30.4°F (-0.9°C). With the onset of March, Vernon Hills's average high-temperature sees a rise, moving from February's freezing cold 31.3°F (-0.4°C) to a frosty 43.2°F (6.2°C). Weather in March »
Weather in April
April in Vernon Hills, Illinois, is a cool spring month, with an average temperature fluctuating between 54.1°F (12.3°C) and 39°F (3.9°C). The arrival of April sees a shift in the average high-temperature, moving from a frosty 43.2°F (6.2°C) in March to a cool 54.1°F (12.3°C). Weather in April »
Weather in May
May, the last month of the spring in Vernon Hills, is a refreshing month, with an average temperature varying between 65.8°F (18.8°C) and 50°F (10°C). May brings a rise in the average high-temperature, transitioning from April's cool 54.1°F (12.3°C) to a refreshing 65.8°F (18.8°C). Weather in May »
Weather in June
June, the first month of the summer in Vernon Hills, is a moderately hot month, with an average temperature fluctuating between 59°F (15°C) and 75.6°F (24.2°C). Vernon Hills's weather shows a temperature rise with the arrival of June, moving from an enjoyable 65.8°F (18.8°C) in May to a moderately hot 75.6°F (24.2°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Vernon Hills, Illinois, with an average temperature fluctuating between 80.4°F (26.9°C) and 64.9°F (18.3°C). Vernon Hills's July weather reaches an average high of 80.4°F (26.9°C) and an average low of 64.9°F (18.3°C), making it the warmest month. Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Vernon Hills, Illinois, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 63.7°F (17.6°C). At the start of August, Vernon Hills's average high-temperature reaches a still moderately hot 79.3°F (26.3°C), subtly different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Vernon Hills, is also an agreeable month, with an average temperature ranging between min 57.4°F (14.1°C) and max 72.9°F (22.7°C). With the commencement of September, Vernon Hills records a moderate temperature decline, with the average high easing from August's warm 79.3°F (26.3°C) to an agreeable 72.9°F (22.7°C). Weather in September »
Weather in October
October, the same as September, in Vernon Hills, Illinois, is another mild autumn month, with an average temperature ranging between max 59.2°F (15.1°C) and min 45.5°F (7.5°C). A change in temperatures is noted as September gives way to October, with average highs reducing from an agreeable 72.9°F (22.7°C) to a refreshing 59.2°F (15.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a frosty month in Vernon Hills, Illinois, with an average temperature fluctuating between 45.3°F (7.4°C) and 33.3°F (0.7°C). The shift to November brings a decrease in the average high-temperature, falling from a moderate 59.2°F (15.1°C) in October to a chilly 45.3°F (7.4°C). Weather in November »
Weather in December
December, the first month of the winter in Vernon Hills, is also a wintry month, with an average temperature fluctuating between 24.3°F (-4.3°C) and 33.6°F (0.9°C). The transition into December indicates a reduction in the average high-temperature, down to a cold 33.6°F (0.9°C) from November's frosty 45.3°F (7.4°C). Weather in December »
[Resources]Frequently asked questions
What month is the coldest in Vernon Hills?
The month of January sees the average lowest temperatures, reaching 27.9°F (-2.3°C) at the peak and 16.5°F (-8.6°C) at the low.
What is the most humid month in Vernon Hills?
The months with the highest humidity in Vernon Hills are January and February, with an average relative humidity of 83%.
How many days does it rain in Vernon Hills?
Throughout the year, in Vernon Hills, there are 147.3 rainfall days, and 27.44" (697mm) of precipitation is accumulated.
When does it snow in Vernon Hills?
January through May, October through December are months with snowfall in Vernon Hills, Illinois.
How much does it snow in Vernon Hills?
In Vernon Hills, Illinois, during the entire year, snow falls for 48.2 days and aggregates up to 18.86" (479mm) of snow.
What is the month with the least sunshine in Vernon Hills?
January has the least sunshine of the year in Vernon Hills, Illinois, with an average of 3.7h of sunshine.
When does it snow the most in Vernon Hills?
The month with the most snowfall is February, when snow falls for 11 days and typically aggregates up to 5.55" (141mm) of snow.
When is Daylight Saving Time (DST) in Vernon Hills?
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 in Vernon Hills?
The month with the most rainfall is June, when the rain falls for 17.2 days and typically aggregates up to 3.54" (90mm) of precipitation.
When it does not snow in Vernon Hills?
In Vernon Hills, Illinois, snow does not fall in June through September.
When are the longest days in Vernon Hills?
June has the longest days of the year in Vernon Hills, Illinois, with an average of 15h and 12min of daylight.
What are the warmest months in Vernon Hills?
In Vernon Hills, July is the month with the highest recorded average temperatures, measuring a high of 80.4°F (26.9°C) and a low of 64.9°F (18.3°C).
What is the month with the most sunshine in Vernon Hills?
The months with the most sunshine are July and August, with an average of 10.1h of sunshine.
What are the months with the highest UV index in Vernon Hills?
The months with the highest UV index in Vernon Hills, Illinois, are July and August, with an average maximum UV index of 6.
What is the least humid month in Vernon Hills?
October is the least humid month in Vernon Hills, with an average relative humidity of 74%.
What is the driest month in Vernon Hills?
November and December are months with the least rain in Vernon Hills when the rain falls for 7.8 days and typically aggregates up to 1.3" (33mm) of rain.
What is the month with the shortest days in Vernon Hills?
The month with the shortest days is December, with an average of 9h and 12min of daylight.
What is the month with the lowest UV index in Vernon Hills?
With an average maximum UV index of 1, December is the month with the lowest UV index in Vernon Hills, Illinois.
Average temperature
Vernon Hills, IL
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (27.9°F).
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure
Vernon Hills, IL
- Average pressure in January:
30.1"Hg - Average pressure in February:
30.09"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"Hg - Average pressure in November:
30.09"Hg - Average pressure in December:
30.09"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Vernon Hills, IL
- Average wind speed in January:
10.3mph - Average wind speed in February:
10.1mph - 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:
7.3mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.4mph - Average wind speed in September:
7.5mph - Average wind speed in October:
9mph - Average wind speed in November:
9.7mph - Average wind speed in December:
9.5mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity
Vernon Hills, IL
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall
Vernon Hills, IL
- Average rainfall in January:
1.34" - Average rainfall in February:
1.61" - Average rainfall in March:
1.65" - Average rainfall in April:
3.19" - Average rainfall in May:
3.31" - Average rainfall in June:
3.54"
The wettest month (with the highest rainfall) is June (3.54").
The driest months (with the least rainfall) are November and December (1.3").
Average rainfall days
Vernon Hills, IL
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
4.3 days - Average rainfall days in March:
10.5 days - Average rainfall days in April:
16.2 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
17.2 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
12.9 days - Average rainfall days in October:
13.5 days - Average rainfall days in November:
7.8 days - Average rainfall days in December:
7.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (4.3 days).
Average snowfall
Vernon Hills, IL
- Average snowfall in January:
4.65" - Average snowfall in February:
5.55" - Average snowfall in March:
1.34" - Average snowfall in April:
2.28" - Average snowfall in May:
0.08" - Average snowfall in June:
0"
The month with the highest snowfall is February (5.55").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Vernon Hills, IL
- Average snowfall days in January:
12.9 days - Average snowfall days in February:
11 days - Average snowfall days in March:
6.4 days - Average snowfall days in April:
2.5 days - Average snowfall days in May:
0.2 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:
0.6 days - Average snowfall days in November:
4.2 days - Average snowfall days in December:
10.4 days
The month with the highest number of snowfall days is January (12.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Vernon Hills, 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 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 12min).
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 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 4min
- Average sunshine in July:
10h and 1min - Average sunshine in August:
10h and 1min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 3min - Average sunshine in November:
5h and 0min - Average sunshine in December:
4h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Vernon Hills, IL
- Average sunshine days in January:
13 days - Average sunshine days in February:
12.2 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
10.9 days - Average sunshine days in May:
10.5 days - Average sunshine days in June:
10 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
12.7 days - Average sunshine days in September:
14.5 days - Average sunshine days in October:
14.4 days - Average sunshine days in November:
16.6 days - Average sunshine days in December:
14.5 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is June (10 days).
Average UV index
Vernon Hills, IL
The months with the highest UV index are July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover
Vernon Hills, IL
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility
Vernon Hills, 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).
Vernon Hills, Illinois, USA
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