Norwalk, CT Weather & Climate Normals
What a normal year in Norwalk actually looks like
On the 30-year record NOAA keeps for Norwalk, CT, the comfort score comes out to 46/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 5 months a year land in the 55–75°F range this site treats as mild.
How much Norwalk's weather actually swings
Average temperatures in Norwalk run from 30°F in Jan up to 75°F in Jul, a 44.5°F seasonal swing, a middling gap by national standards.
Norwalk, month by month
| Month | Avg high | Avg low | Precip | Snow |
|---|---|---|---|---|
| Jan | 38°F | 22°F | 4.26in | 9.1in |
| Feb | 41°F | 23°F | 3.14in | 11.9in |
| Mar | 49°F | 30°F | 4.73in | 5.9in |
| Apr | 62°F | 40°F | 4.44in | 0.5in |
| May | 72°F | 50°F | 4.12in | 0in |
| Jun | 80°F | 59°F | 4.91in | 0in |
| Jul | 85°F | 64°F | 3.77in | 0in |
| Aug | 83°F | 63°F | 3.81in | 0in |
| Sep | 76°F | 56°F | 5.21in | 0in |
| Oct | 64°F | 45°F | 4.59in | 0in |
| Nov | 53°F | 35°F | 4.19in | 0.8in |
| Dec | 43°F | 27°F | 4.44in | 5.8in |
If you're timing a visit, May, Jun, Jul, Aug, and Sep are Norwalk's mildest stretch; if you're moving there, you should plan around Jan's cold instead.
How wet Norwalk actually gets
Over a typical year, Norwalk sees about 51.61in of precipitation a year across roughly 124 days with measurable rain or snow, with 34in of snow a year.
Norwalk against the rest of the country
Out of 4876 cities scored here, Norwalk comes in at 2910; within CT alone it ranks 16 of 21. Population is about 93,661.
Checking the actual forecast
These figures come from Stamford 5 N, CT US, the NOAA station 7.0 miles from Norwalk, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why this uses the nearest NOAA station · How the comfort score is calculated