Average Temperatures for Connecticut in January
Average temperatures for January at cities and towns throughout Connecticut are listed below in degrees Fahrenheit and Celsius.
You can jump to a separate table for places in Coastal Connecticut and Inland Connecticut.
The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.
Coastal Connecticut
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 38 | 24 | Bridgeport | 4 | -4 |
| 39 | 24 | Groton | 4 | -5 |
| 38 | 23 | New Haven | 3 | -5 |
| 38 | 23 | New London | 4 | -5 |
| 38 | 21 | Norwich | 3 | -6 |
| 38 | 22 | Stamford | 3 | -5 |
Inland Connecticut
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 36 | 17 | Burlington | 2 | -8 |
| 36 | 21 | Danbury | 2 | -6 |
| 35 | 19 | Hartford | 2 | -7 |
| 30 | 14 | Norfolk | -1 | -10 |
| 34 | 14 | Staffordville | 1 | -10 |
| 33 | 15 | Torrington | 1 | -10 |
| 35 | 15 | West Thompson Lake | 2 | -9 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.