Annual mean 11°C · wettest around April · prevailing wind SW
Warmest
26.6 °C
Coldest
-2.9 °C
Wettest
16%
Windiest
6.1 m/s
Prevailing
SW
5.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Vernon Hills over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -5°C. Vernon Hills has no sharply defined rainy season: the chance of rain on a given day runs from 7% in August, the driest month, to 12% in April, the wettest. Winds in Vernon Hills are highest in February, averaging 4.8 m/s (17 km/h), and lightest in August, at 3.4 m/s (12 km/h). The prevailing wind is from the SW. The clearest skies in Vernon Hills come in July, when the sky is typically 42% covered; January is the cloudiest month, at 67%.
Month by month Vernon Hills climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-2°C
-5°C
-8°C
9%
67%
4.7 m/s
0
0
1
February
1°C
-4°C
-6°C
8%
57%
4.8 m/s
1
0
7
March
6°C
1°C
0°C
10%
58%
4.8 m/s
3
0
19
April
11°C
6°C
6°C
12%
59%
4.8 m/s
16
0
43
May
18°C
12°C
15°C
11%
54%
4.3 m/s
47
11
64
June
24°C
19°C
23°C
9%
44%
3.9 m/s
65
37
46
July
26°C
21°C
27°C
8%
42%
3.5 m/s
57
58
24
August
26°C
20°C
26°C
7%
43%
3.4 m/s
63
54
29
September
23°C
16°C
21°C
8%
46%
3.7 m/s
71
29
57
October
15°C
10°C
12°C
11%
53%
4.2 m/s
35
4
63
November
7°C
3°C
2°C
8%
56%
4.5 m/s
7
0
26
December
2°C
-1°C
-4°C
10%
64%
4.5 m/s
0
0
6
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Vernon Hills weather by season
Year round, Vernon Hills has days of about -2°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -5°C to 21°C through the year, and the average temperature over the year is 11°C around the clock. Rain is most likely around April and least likely around August. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Vernon Hills weather in winterDecember to February
High -0°CLow -3°CRain 9%
Winter in Vernon Hills has typical daily highs of about -0°C and lows of about -3°C, with a 9% chance of rain on a given day.
Vernon Hills weather in springMarch to May
High 11°CLow 6°CRain 11%
Spring in Vernon Hills has typical daily highs of about 11°C and lows of about 6°C, with a 11% chance of rain on a given day.
Vernon Hills weather in summerJune to August
High 25°CLow 20°CRain 8%
Summer in Vernon Hills has typical daily highs of about 25°C and lows of about 20°C, with a 8% chance of rain on a given day.
Vernon Hills weather in autumnSeptember to November
High 15°CLow 10°CRain 9%
Autumn in Vernon Hills has typical daily highs of about 15°C and lows of about 10°C, with a 9% chance of rain on a given day.
When is the rainy season in Vernon Hills?
Vernon Hills has no sharply defined rainy season: the chance of rain on a given day runs from 7% in August, the driest month, to 12% in April, the wettest.
What time of year is Vernon Hills windiest?
Winds in Vernon Hills are highest in February, averaging 4.8 m/s (17 km/h), and lightest in August, at 3.4 m/s (12 km/h). The prevailing wind is from the SW.
What is the average temperature in Vernon Hills year round?
The average temperature in Vernon Hills over the whole year is 11°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -5°C.