Annual mean 10°C · wettest around May · prevailing wind SW
Warmest
26.4 °C
Coldest
-3.1 °C
Wettest
35%
Windiest
5.9 m/s
Prevailing
SW
4.8 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 McHenry over the whole year is 10°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -6°C. McHenry has no sharply defined rainy season: the chance of rain on a given day runs from 27% in February, the driest month, to 33% in May, the wettest. Winds in McHenry are highest in February, averaging 4.4 m/s (16 km/h), and lightest in August, at 2.8 m/s (10 km/h). The prevailing wind is from the SW. The clearest skies in McHenry come in July, when the sky is typically 36% covered; January is the cloudiest month, at 63%.
Month by month McHenry 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
-3°C
-6°C
-9°C
29%
63%
4.2 m/s
0
0
1
February
0°C
-4°C
-6°C
27%
51%
4.4 m/s
1
0
7
March
6°C
1°C
0°C
31%
54%
4.4 m/s
2
0
17
April
11°C
5°C
6°C
32%
53%
4.4 m/s
16
0
42
May
18°C
12°C
15°C
33%
48%
3.8 m/s
47
11
63
June
24°C
18°C
24°C
31%
38%
3.5 m/s
63
39
44
July
26°C
20°C
27°C
31%
36%
3.0 m/s
55
58
23
August
26°C
19°C
26°C
31%
38%
2.8 m/s
62
53
28
September
23°C
15°C
21°C
31%
41%
3.2 m/s
68
30
55
October
15°C
9°C
11°C
33%
48%
3.7 m/s
34
4
61
November
7°C
2°C
2°C
30%
51%
4.1 m/s
7
0
25
December
1°C
-2°C
-4°C
30%
58%
4.1 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 McHenry weather by season
Year round, McHenry has days of about -3°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -6°C to 20°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around May and least likely around February. 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.
McHenry weather in winterDecember to February
High -0°CLow -4°CRain 29%
Winter in McHenry has typical daily highs of about -0°C and lows of about -4°C, with a 29% chance of rain on a given day.
McHenry weather in springMarch to May
High 12°CLow 6°CRain 32%
Spring in McHenry has typical daily highs of about 12°C and lows of about 6°C, with a 32% chance of rain on a given day.
McHenry weather in summerJune to August
High 25°CLow 19°CRain 31%
Summer in McHenry has typical daily highs of about 25°C and lows of about 19°C, with a 31% chance of rain on a given day.
McHenry weather in autumnSeptember to November
High 15°CLow 9°CRain 31%
Autumn in McHenry has typical daily highs of about 15°C and lows of about 9°C, with a 31% chance of rain on a given day.
When is the rainy season in McHenry?
McHenry has no sharply defined rainy season: the chance of rain on a given day runs from 27% in February, the driest month, to 33% in May, the wettest.
What time of year is McHenry windiest?
Winds in McHenry are highest in February, averaging 4.4 m/s (16 km/h), and lightest in August, at 2.8 m/s (10 km/h). The prevailing wind is from the SW.
What is the average temperature in McHenry year round?
The average temperature in McHenry over the whole year is 10°C. July is the hottest month, with highs of about 26°C; January is the coldest, with lows of about -6°C.