Zip 06820 (Darien, CT) Climate

The climate in 06820 Darien, CT is typical for the Northeastern United States. Summers are typically hot and humid with temperatures averaging in the mid-80s Fahrenheit (30 Celsius). Winters vary from mild to cold with temperatures dipping into the single digits Fahrenheit (-15 Celsius) on occasion. Precipitation is spread evenly throughout the year with the occasional snowfall during winter months. The area also experiences frequent thunderstorms due to its location near coastal areas.

Darien (zip 06820), Connecticut gets 51 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Darien (zip 06820) averages 30 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 202 sunny days per year in Darien (zip 06820). The US average is 205 sunny days.

Darien (zip 06820) gets some kind of precipitation, on average, 124 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 84 degrees
Winter Low: the January low is 21
Rain: averages 51 inches of rain a year
Snow: averages 30 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 06820 zip code is 7.1 (10=best), which means it is more comfortable than most places in Connecticut.

8.9 Summer - 5.2 Winter

June, September and August are the most pleasant months in the 06820 zip code, while January and February are the least comfortable months.

Climate	Darien, Connecticut	United States
	Unlock	38.1 in.
	29.9 in.	Unlock
	Unlock	106.2 days
	202 days	Unlock
	83.6°	85.8°
	Unlock	21.7°
	7.1	Unlock
	Unlock	4.3
	96 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for the 06820 zip code with an average high temperature of 83.6°, which ranks it as warmer than most places in Connecticut. In the 06820 zip code, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 06820 zip code are June, September and August.

In the 06820 zip code, there are 8.9 days annually when the high temperature is over 90°, which is hotter than most places in Connecticut.

January has the coldest nighttime temperatures for the 06820 zip code with an average of 21.1°. This is warmer than most places in Connecticut.

In the 06820 zip code, there are 110.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Connecticut.

In the 06820 zip code, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is one of the warmest places in Connecticut.

The humidity is usually comfortable in the 06820 zip code but some summer months can be sticky or muggy. August is the most humid month, though humidity is low for most of the year. The most humid months are August, July and June.

September is the wettest month in the 06820 zip code with 4.7 inches of rain, and the driest month is February with 3.2 inches. The wettest season is Winter with 27% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 50.8 inches in the 06820 zip code means that it is wetter than most places in Connecticut.

April is the rainiest month in the 06820 zip code with 12.3 days of rain, and October is the driest month with only 8.9 rainy days. There are 123.7 rainy days annually in the 06820 zip code, which is rainier than most places in Connecticut. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 29.9 inches in the 06820 zip code means that it is less snowy than most places in Connecticut. February is the snowiest month in the 06820 zip code with 9.0 inches of snow, and 6 months of the year have significant snowfall.

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