Annual mean 11°C · wettest around April · prevailing wind SW
Warmest
26.7 °C
Coldest
-2.9 °C
Wettest
15%
Windiest
6.1 m/s
Prevailing
SW
5.2 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 Buffalo Grove over the whole year is 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -5°C. Buffalo Grove has no sharply defined rainy season: the chance of rain on a given day runs from 6% in August, the driest month, to 11% in April, the wettest. Winds in Buffalo Grove are highest in February, averaging 4.9 m/s (18 km/h), and lightest in August, at 3.5 m/s (13 km/h). The prevailing wind is from the SW. The clearest skies in Buffalo Grove come in August, when the sky is typically 45% covered; January is the cloudiest month, at 69%.
Month by month Buffalo Grove 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%
69%
4.8 m/s
0
0
1
February
1°C
-3°C
-5°C
8%
59%
4.9 m/s
1
0
8
March
6°C
1°C
1°C
10%
61%
4.9 m/s
3
0
19
April
11°C
6°C
6°C
11%
61%
4.9 m/s
16
0
43
May
18°C
12°C
15°C
10%
57%
4.3 m/s
47
11
64
June
24°C
19°C
23°C
8%
47%
4.0 m/s
64
38
46
July
27°C
21°C
27°C
7%
46%
3.6 m/s
56
57
24
August
26°C
20°C
26°C
6%
45%
3.5 m/s
63
53
29
September
23°C
17°C
22°C
8%
49%
3.8 m/s
71
29
57
October
15°C
10°C
12°C
10%
55%
4.3 m/s
35
4
63
November
7°C
3°C
2°C
8%
58%
4.6 m/s
6
0
26
December
2°C
-1°C
-4°C
9%
65%
4.6 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 Buffalo Grove weather by season
Year round, Buffalo Grove has days of about -2°C at their warmest in January, its coolest month, and 27°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.
Buffalo Grove weather in winterDecember to February
High 0°CLow -3°CRain 9%
Winter in Buffalo Grove has typical daily highs of about 0°C and lows of about -3°C, with a 9% chance of rain on a given day.
Buffalo Grove weather in springMarch to May
High 12°CLow 7°CRain 11%
Spring in Buffalo Grove has typical daily highs of about 12°C and lows of about 7°C, with a 11% chance of rain on a given day.
Buffalo Grove weather in summerJune to August
High 26°CLow 20°CRain 7%
Summer in Buffalo Grove has typical daily highs of about 26°C and lows of about 20°C, with a 7% chance of rain on a given day.
Buffalo Grove weather in autumnSeptember to November
High 15°CLow 10°CRain 9%
Autumn in Buffalo Grove 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 Buffalo Grove?
Buffalo Grove has no sharply defined rainy season: the chance of rain on a given day runs from 6% in August, the driest month, to 11% in April, the wettest.
What time of year is Buffalo Grove windiest?
Winds in Buffalo Grove are highest in February, averaging 4.9 m/s (18 km/h), and lightest in August, at 3.5 m/s (13 km/h). The prevailing wind is from the SW.
What is the average temperature in Buffalo Grove year round?
The average temperature in Buffalo Grove over the whole year is 11°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -5°C.