Cos Cob and New Canaan have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Cos Cob | Metric | New Canaan |
|---|---|---|
| 202 days | Sunny daysclear or partly cloudy skies | 200 days |
| 44 in | Precipitationper year | 45 in |
| 122 days | Wet daysrain or snow per year | 124 days |
| 33 in | Snowfallper year | 35 in |
| 14 days | Hot daysabove 90 °F | 17 days |
| 106 days | Freezing nightsat or below 32 °F | 109 days |
| 73% | Humidityaverage relative | 73% |
| 53 °F | Average temperatureyear round | 53 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cos Cob high | 38 | 41 | 49 | 61 | 71 | 79 | 84 | 82 | 75 | 64 | 53 | 43 |
| New Canaan high | 38 | 41 | 49 | 62 | 72 | 80 | 85 | 83 | 76 | 64 | 53 | 43 |
| Cos Cob low | 22 | 24 | 31 | 40 | 50 | 59 | 65 | 63 | 56 | 45 | 36 | 28 |
| New Canaan low | 22 | 23 | 30 | 40 | 50 | 58 | 64 | 63 | 56 | 45 | 35 | 27 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cos Cob | 3.3 | 3.1 | 4.1 | 3.6 | 3.4 | 3.7 | 3.6 | 4.1 | 3.7 | 4.0 | 3.2 | 4.1 |
| New Canaan | 3.4 | 3.1 | 4.2 | 3.8 | 3.5 | 3.9 | 3.7 | 4.1 | 3.9 | 4.1 | 3.3 | 4.2 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cos Cob | 17 | 16 | 17 | 15 | 15 | 15 | 19 | 18 | 18 | 19 | 17 | 17 |
| New Canaan | 17 | 16 | 16 | 15 | 15 | 15 | 19 | 18 | 17 | 19 | 17 | 16 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Cos Cob vs another city
- Cos Cob vs Riverside, CT
- Cos Cob vs Greenwich, CT
- Cos Cob vs Old Greenwich, CT
- Cos Cob vs Stamford, CT
- Cos Cob vs Byram, CT
- Cos Cob vs Port Chester, NY
- Cos Cob vs New York, NY
- Cos Cob vs Los Angeles, CA
- Cos Cob vs Chicago, IL
- Cos Cob vs Houston, TX
- Cos Cob vs Phoenix, AZ
- Cos Cob vs Philadelphia, PA
New Canaan vs another city
- New Canaan vs Norwalk, CT
- New Canaan vs Stamford, CT
- New Canaan vs Noroton, CT
- New Canaan vs Staples, CT
- New Canaan vs Ridgefield, CT
- New Canaan vs New York, NY
- New Canaan vs Los Angeles, CA
- New Canaan vs Chicago, IL
- New Canaan vs Houston, TX
- New Canaan vs Phoenix, AZ
- New Canaan vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).