Darien, CT Weather
Darien, CT climate is warm during summer when temperatures tend to be in the 70's and very cold during winter when temperatures tend to be in the 20's.
The warmest month of the year is July with an average maximum temperature of 84.20 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 18.80 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 22 degrees Fahrenheit, and fairly limited during winter with an average difference of 18 degrees Fahrenheit.
The annual average precipitation at Darien is 48.38 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is September with an average rainfall of 4.54 Inches.
Weather Data
Current Conditions
|
Overcast, 47°F | Humidity: 74% | Dewpoint: 39°F |
| Wind Speed: NE 4.6 MPH (4 KT) | Heat Index: 47°F | ||
| Barometer: 30.37 in. | Wind Chill: 45°F |
Weather Forecast
 | Tonight: Partly cloudy early...Then becoming mostly cloudy with a slight chance of light rain or drizzle. Lows in the lower 40s. Northeast winds 10 to 15 mph. Chance of rain 20 percent. | |
| Lo: 41°F | ||
| Hi: 50°F | Monday: Cloudy. A slight chance of light rain or drizzle in the morning...Then a chance of rain in the afternoon. Highs around 50. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 50 percent. |
| Lo: 49°F | ||
| Hi: 51°F | Tuesday: Mostly cloudy. Light rain likely in the morning. Highs in the lower 50s. North winds 10 to 15 mph. Chance of rain 60 percent. |
| Lo: 40°F | ||
 | Hi: 55°F | Wednesday: Partly sunny. Highs in the mid 50s. |
| Lo: 41°F | ||
 | Hi: 55°F | Thanksgiving day: Mostly cloudy with a 40 percent chance of rain. Highs in the mid 50s. |
| Lo: 40°F | ||
| Hi: 49°F | Friday: Mostly cloudy with a 50 percent chance of rain. Highs in the upper 40s. |
| Lo: 35°F | ||
 | Hi: 45°F | Saturday: Partly sunny. A chance of rain in the morning. Breezy with highs in the mid 40s. Chance of rain 30 percent. |
| Lo: 31°F |
Moon, Sunrise and Sunset
 |
Moon Phase: Waxing Crescent Moon | Civil Twilight: 6:19 AM EST |
Sunrise: 6:48 AM EST |
| Sunset: 4:30 PM EST |
Civil Twilight: 5:00 PM EST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 36.8 | 39.3 | 48.3 | 59.8 | 70.0 | 79.2 | 84.2 | 82.4 | 74.9 | 63.6 | 52.4 | 41.6 | 61.0 |
| Mean °F | 27.8 | 30.0 | 38.6 | 48.8 | 58.3 | 67.9 | 73.4 | 71.7 | 63.8 | 52.0 | 42.8 | 32.9 | 50.7 |
| Min °F | 18.8 | 20.6 | 28.8 | 37.7 | 46.5 | 56.5 | 62.5 | 61.0 | 52.7 | 40.4 | 33.2 | 24.1 | 40.2 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 4.20 | 3.03 | 4.33 | 4.37 | 4.36 | 3.94 | 3.83 | 3.89 | 4.54 | 3.89 | 4.04 | 3.96 | 48.38 |
