Annual mean 10°C · wettest around May · prevailing wind SW
Warmest
27.3 °C
Coldest
-4.0 °C
Wettest
60%
Windiest
6.2 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 Rockford over the whole year is 10°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -7°C. Rockford has no sharply defined rainy season: the chance of rain on a given day runs from 57% in February, the driest month, to 66% in May, the wettest. Winds in Rockford are highest in April, averaging 4.6 m/s (17 km/h), and lightest in August, at 2.4 m/s (9 km/h). The prevailing wind is from the SW. The clearest skies in Rockford come in July, when the sky is typically 42% covered; January is the cloudiest month, at 63%.
Month by month Rockford 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
-7°C
-9°C
60%
63%
4.0 m/s
0
0
1
February
-1°C
-5°C
-7°C
57%
52%
4.2 m/s
1
0
6
March
6°C
0°C
0°C
65%
56%
4.5 m/s
2
0
17
April
12°C
5°C
7°C
64%
56%
4.6 m/s
17
1
42
May
19°C
12°C
16°C
66%
53%
3.8 m/s
49
11
61
June
26°C
18°C
24°C
65%
43%
3.3 m/s
60
40
36
July
27°C
19°C
27°C
66%
42%
2.5 m/s
51
56
18
August
26°C
17°C
26°C
66%
43%
2.4 m/s
58
49
25
September
23°C
14°C
21°C
65%
43%
2.8 m/s
64
29
50
October
15°C
8°C
11°C
65%
50%
3.5 m/s
31
4
56
November
7°C
1°C
1°C
61%
52%
3.9 m/s
6
0
21
December
1°C
-3°C
-5°C
62%
60%
4.0 m/s
0
0
4
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 Rockford weather by season
Year round, Rockford has days of about -3°C at their warmest in January, its coolest month, and 27°C in July, its warmest; the coolest hours of the day run from -7°C to 19°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.
Rockford weather in winterDecember to February
High -1°CLow -5°CRain 60%
Winter in Rockford has typical daily highs of about -1°C and lows of about -5°C, with a 60% chance of rain on a given day.
Rockford weather in springMarch to May
High 13°CLow 6°CRain 65%
Spring in Rockford has typical daily highs of about 13°C and lows of about 6°C, with a 65% chance of rain on a given day.
Rockford weather in summerJune to August
High 26°CLow 18°CRain 66%
Summer in Rockford has typical daily highs of about 26°C and lows of about 18°C, with a 66% chance of rain on a given day.
Rockford weather in autumnSeptember to November
High 15°CLow 8°CRain 64%
Autumn in Rockford has typical daily highs of about 15°C and lows of about 8°C, with a 64% chance of rain on a given day.
When is the rainy season in Rockford?
Rockford has no sharply defined rainy season: the chance of rain on a given day runs from 57% in February, the driest month, to 66% in May, the wettest.
What time of year is Rockford windiest?
Winds in Rockford are highest in April, averaging 4.6 m/s (17 km/h), and lightest in August, at 2.4 m/s (9 km/h). The prevailing wind is from the SW.
What is the average temperature in Rockford year round?
The average temperature in Rockford over the whole year is 10°C. July is the hottest month, with highs of about 27°C; January is the coldest, with lows of about -7°C.