Stamford, Connecticut – Climate and Average Weather Year Round: What to Expect

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Stamford, Connecticut experiences a varied climate throughout the year, making it a place of diverse weather conditions.

Summers in Stamford are warm, humid, and often wet, with temperatures typically ranging from 24°F to 83°F. This variation means residents and visitors can enjoy both warm sunshine and refreshing rain showers.

During the winter months, Stamford is very cold and snowy, creating a picturesque setting perfect for winter activities.

The average lows can reach 26.6°F in January, making it the coldest month of the year. Snowfall is common, turning the city into a winter wonderland.

The annual weather averages for Stamford reveal that this city in Connecticut enjoys a mix of cloudy and clear days year-round. The region’s Köppen-Geiger classification is Cfa, indicating a temperate climate with significant rainfall even in the driest months. This detailed climate graph shows the precipitation and temperature trends, providing deeper insights into Stamford’s weather through the year.

Average Temperature in Stamford, Connecticut

Stamford, Connecticut experiences varied temperatures throughout the year.

Summer:

The hottest month is July, with an average high temperature of around 82°F and a low of 67°F.

Winter:

The cold season lasts from early December to mid-March. January is the coldest month, with average highs of 38°F and lows of 25°F.

Stamford experiences temperatures below 46°F during the cold season. The average temperature in January hits its lowest at around 25°F, and daily high temperatures remain below 46°F.

Month Average High Average Low
January 38°F 25°F
July 82°F 67°F

Spring and autumn bring mild temperatures.

Spring:

From March to May, average temperatures range between 46°F and 72°F.

Autumn:

From September to November, temperatures range from 74°F during early fall to about 50°F as winter approaches.

The annual mean temperature stands at approximately 52°F, with variations across different months. Stamford enjoys distinct seasons, making it a place with diverse year-round temperatures.

Yearly fluctuations involve temperatures ranging from 24.7°F during the lowest points to highs of 83°F. These shifts underline the dynamic weather patterns, providing residents an experience of all four seasons throughout the year.

Average Precipitation in Stamford, Connecticut

Stamford, Connecticut experiences different amounts of precipitation throughout the year. Rainfall and snowfall both vary, with unique patterns in each season.

Average Rainfall in Stamford, Connecticut

Rainfall in Stamford is fairly consistent throughout the year. The city experiences an annual precipitation of around 50 inches. The rainiest month is September, with an average of 4.6 inches. Months like May and October also see high levels of rain, at about 4.2 inches each.

Overall, Stamford sees rain on approximately 118 days each year.

Here is a breakdown of monthly average rainfall (in inches):

  • January: 3.9
  • February: 3.3
  • March: 4.1
  • April: 4.1
  • May: 4.2
  • June: 4.0
  • July: 4.3
  • August: 4.1
  • September: 4.6
  • October: 4.2
  • November: 4.1
  • December: 3.6

Average Snow in Stamford, Connecticut

Snowfall in Stamford is concentrated in the winter months. Stamford gets an average of 25 inches of snow annually. January is the snowiest month, averaging nearly 8 inches. December and February also contribute significantly to the snowfall totals, with about 6.5 inches each.

The city experiences around 14 snowy days each winter.

Here is a monthly breakdown of average snowfall (in inches):

  • November: 2.0
  • December: 6.5
  • January: 8.0
  • February: 6.5
  • March: 3.5
  • April: 0.5

This pattern underlines the notable amount of precipitation in Stamford, making it important for residents to prepare for snowy conditions, especially in the colder months. For more detailed information on snow and ice, you can visit relevant resources.

Average Sun in Stamford, Connecticut

Stamford experiences varying amounts of sunshine throughout the year, with some seasonal fluctuations. The city has a mix of sunny and cloudy days, affecting the average daily shortwave solar energy.

Average Daily Shortwave Solar Energy in Stamford, Connecticut

The amount of solar energy received in Stamford changes with the seasons. On average, the city gets about 4.8 kWh/m² daily. The highest levels occur in July when the days are longest, and the sun is at its peak, reaching around 6.8 kWh/m².

Winter:

From December to February, the solar energy drops to about 2.1 kWh/m². Shorter days and increased cloud cover contribute to this decline.

Spring and Fall:

During March through May and September through November, solar energy ranges between 4.0 to 5.3 kWh/m². This period has moderate cloudiness with gradually increasing or decreasing daylight.

This variation impacts daily UV index levels, with summer reaching higher levels compared to winter.

Average Humidity in Stamford, Connecticut

Stamford, Connecticut experiences varying levels of humidity throughout the year. The relative humidity is a significant aspect of the climate in this area.

Monthly Relative Humidity:

  • January: Approximately 63%
  • February: Approximately 63%
  • March: Approximately 63%
  • April: Approximately 64%
  • May: Approximately 68%
  • June: Approximately 69%
  • July: Approximately 68%
  • August: Approximately 68%
  • September: Approximately 70%
  • October: Approximately 68%
  • November: Approximately 66%
  • December: Approximately 64%

September is typically the most humid month with an average relative humidity of about 70%.

The dew point, which indicates how comfortable or muggy it might feel, varies with the seasons.

Additional Details:

  • Least Humid Months: January to March (around 63%)
  • Humidity Range: 63% to 70%
  • Comfortable Months: Spring and early autumn, due to moderate humidity levels.

For more comprehensive information on humidity and other climate factors in Stamford, you can visit Weather and Climate’s detailed section on Stamford.

Average Wind in Stamford, Connecticut

Stamford, Connecticut experiences moderate wind speeds throughout the year.

Wind speeds average 10 mph (16 km/h). The windiest month in Stamford typically sees slightly higher speeds, often reaching around 15 mph (24 km/h).

The wind usually comes from the northwest, although this can vary.

In the summer, the winds are usually calmer, while winter brings stronger gusts.

Wind speeds are usually measured in both mph and km/h for convenience.

Wind patterns impact daily weather conditions such as temperature and precipitation.

Special attention to the wind in the winter is crucial because strong gusts combined with cold temperatures can make it feel much colder outside.

Average Air Quality in Stamford, Connecticut

Stamford, Connecticut generally enjoys good air quality throughout the year. The city’s air quality is monitored and reported by several agencies. Real-time data is available to help residents stay informed.

The Air Quality Index (AQI) for Stamford often falls in the “Good” category. According to IQAir, the AQI here typically ranges from 0 to 50.

Primary Pollutants Monitored:

  • PM2.5: Fine particulate matter that can affect lung health.
  • Ozone: Ground-level ozone, which can cause respiratory issues.

During certain times of the year, such as summer, the AQI can rise to the “Moderate” level, indicating that sensitive groups should take caution. For instance, days with higher temperatures and less wind can see increased levels of pollutants.

Stamford’s weather conditions also play a role in air quality. The city experiences varied weather patterns:

  • Temperature: Average highs in summer reach the mid-80s Fahrenheit.
  • Humidity: Summers can become quite humid, which might slightly impact air purity.
  • Visibility: Generally good, except during occasional fog or heavy rainfall.

Data from Weather Channels:

Topography of Stamford, Connecticut

Stamford is located in Fairfield County, Connecticut. The city lies along the Long Island Sound, providing a mix of coastal and inland terrain. The geographic coordinates are approximately 41.05° N latitude and 73.54° W longitude.

Elevation Range

Stamford’s elevation varies throughout the region. The lowest point is at sea level along the coast. The highest point reaches up to 705 feet (215 meters) above sea level.

The average elevation is about 157 feet (48 meters).

Terrain Features

  • Coastal Areas: Sandy beaches and marshlands.
  • Inland Areas: Rolling hills and small mountains.
  • Rivers and Streams: Several water bodies flow through Stamford, adding to its varied landscape.

Map Reference

A topographic map of Stamford highlights these features and can be viewed on various platforms.

For a detailed view of the terrain, including elevation points, visit the Stamford topographic map.

Extreme Weather Events that Occur in Stamford, Connecticut

Stamford experiences various extreme weather events throughout the year. These include severe thunderstorms, tornadoes, and heat waves.

In July 2024, extreme weather brought severe winds, scorching heat, and a rare tornado to Stamford.

The National Weather Service tracked heavy winds and extreme temperatures during this period.

Tornadoes, though rare, do occur in the area.

The recent tornado was an EF-0 on the Enhanced Fujita scale, with winds up to 85 mph.

This came during a heat wave where temperatures soared to 91°F in Danbury and Hartford.

Severe Thunderstorms: Stamford is often hit by severe thunderstorms. These storms can cause significant damage with high winds and heavy rain.

Microbursts: A microburst in Simsbury recently knocked down trees and caused property damage.

This intense, localized downdraft results in powerful winds spreading outwards.

Heat Waves: Summers in Stamford can get very hot.

The hottest month is typically July, with average highs reaching around 85°F and sometimes exceeding 90°F.

Cold Weather: Winter brings cold temperatures. January is usually the coldest month, with average lows around 22°F.

Hail: Hailstorms also occur occasionally, causing damage to cars, roofs, and crops.

Hailstones can range from tiny pellets to large chunks over an inch in diameter.

Best Time of the Year to Visit Stamford, Connecticut

Stamford, Connecticut offers varied and interesting weather throughout the year. From warm and pleasant summers to crisp and cool winters, each season has its own unique appeal.

What is Stamford, Connecticut Like in Spring

Spring in Stamford begins in March and continues through May.

During this season, temperatures gradually rise from around 50°F in March to about 70°F in May.

Rain showers are common, with April usually seeing the highest rainfall, making the city lush and green.

Visitors will notice blooming flowers and budding trees, which add vibrant colors to parks and neighborhoods.

Activities like hiking, biking, and visiting local gardens are popular during these months.

What is Stamford, Connecticut Like in Summer

Summer in Stamford spans from June to August.

The hottest months are July and August, with average temperatures ranging from 75°F to 85°F.

Humidity can be high, but the sea breeze often provides relief.

This season is ideal for beach visits, outdoor festivals, and dining at outdoor cafes.

Stamford’s parks and waterfronts are bustling with activities. Boating, fishing, and picnicking are favorite pastimes.

What is Stamford, Connecticut Like in Fall

Fall in Stamford lasts from September to November.

Temperatures start in the mid-70s°F in September and drop to the 50s°F by November.

This time of year is marked by clear skies and cool, comfortable weather.

The fall foliage is stunning, with trees displaying brilliant red, orange, and yellow leaves.

October is especially beautiful. Residents and visitors enjoy apple picking, hayrides, and local fairs.

This season is perfect for scenic drives and outdoor activities.

What is Stamford, Connecticut Like in Winter

Winter in Stamford runs from December through February. January is the coldest month, with average lows around 25°F and highs near 38°F.

Snowfall is common, particularly in January and February.

The city’s outdoor ice skating rinks and holiday festivities make winter a charming time to visit.

Indoor attractions like museums and theaters provide warmth and entertainment.

Winter sports enthusiasts can also enjoy nearby skiing and snowboarding.

You can find more detailed information about Stamford’s yearly climate and best time to visit.

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