Annual mean 11°C · wettest around January · prevailing wind W
Warmest
26.6 °C
Coldest
-1.2 °C
Wettest
30%
Windiest
5.4 m/s
Prevailing
W
4.3 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 Norwalk 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 -3°C. Norwalk has no sharply defined rainy season: the chance of rain on a given day runs from 23% in August, the driest month, to 28% in January, the wettest. Winds in Norwalk are highest in March, averaging 4.4 m/s (16 km/h), and lightest in July, at 2.8 m/s (10 km/h). The prevailing wind is from the W. The clearest skies in Norwalk come in July, when the sky is typically 34% covered; January is the cloudiest month, at 73%.
Month by month Norwalk 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
-1°C
-3°C
-6°C
28%
73%
4.3 m/s
0
0
4
February
2°C
-2°C
-4°C
27%
62%
4.2 m/s
2
0
10
March
6°C
2°C
1°C
27%
57%
4.4 m/s
5
0
23
April
12°C
7°C
8°C
28%
53%
4.1 m/s
22
2
46
May
18°C
14°C
16°C
27%
48%
3.5 m/s
49
15
63
June
24°C
19°C
24°C
24%
37%
3.2 m/s
67
37
45
July
26°C
21°C
27°C
24%
34%
2.8 m/s
49
64
17
August
26°C
20°C
26°C
23%
36%
2.8 m/s
59
57
26
September
23°C
17°C
22°C
23%
39%
2.9 m/s
70
34
52
October
16°C
11°C
14°C
25%
49%
3.5 m/s
40
8
64
November
8°C
4°C
4°C
25%
57%
4.0 m/s
8
0
31
December
3°C
0°C
-2°C
27%
69%
4.0 m/s
1
0
11
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 Norwalk weather by season
Year round, Norwalk has days of about -1°C at their warmest in January, its coolest month, and 26°C in July, its warmest; the coolest hours of the day run from -3°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 January 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.
Norwalk weather in winterDecember to February
High 1°CLow -1°CRain 27%
Winter in Norwalk has typical daily highs of about 1°C and lows of about -1°C, with a 27% chance of rain on a given day.
Norwalk weather in springMarch to May
High 12°CLow 8°CRain 27%
Spring in Norwalk has typical daily highs of about 12°C and lows of about 8°C, with a 27% chance of rain on a given day.
Norwalk weather in summerJune to August
High 25°CLow 20°CRain 24%
Summer in Norwalk has typical daily highs of about 25°C and lows of about 20°C, with a 24% chance of rain on a given day.
Norwalk weather in autumnSeptember to November
High 16°CLow 10°CRain 25%
Autumn in Norwalk has typical daily highs of about 16°C and lows of about 10°C, with a 25% chance of rain on a given day.
When is the rainy season in Norwalk?
Norwalk has no sharply defined rainy season: the chance of rain on a given day runs from 23% in August, the driest month, to 28% in January, the wettest.
What time of year is Norwalk windiest?
Winds in Norwalk are highest in March, averaging 4.4 m/s (16 km/h), and lightest in July, at 2.8 m/s (10 km/h). The prevailing wind is from the W.
What is the average temperature in Norwalk year round?
The average temperature in Norwalk 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 -3°C.