New Haven, Connecticut, has a humid continental climate, characterized by cold winters and mild to hot summers.
January is the coldest month, with average high temperatures in the mid-30s Fahrenheit and lows around 20 degrees Fahrenheit.
Meanwhile, July typically stands as the warmest month, with average high temperatures around 80 degrees Fahrenheit and lows in the 60s.
The city experiences varying weather patterns throughout the year.
For instance, December is usually the wettest month, with rainfall averaging around 3.86 inches over 12.5 days.
Summers can get muggy, with August having average temperatures from 64.7°F to 81°F and the sea temperature peaking at 71°F, making it a popular time for beachgoers.
Depending on the time of year, New Haven’s climate can be quite different, affecting everything from daily activities to tourism.
The city’s location in the northeastern part of the United States, along with its specific longitude and latitude, plays a significant role in these changing weather patterns, offering a unique blend of subtropical and continental climate influences.
Average Temperature In New Haven, Connecticut
New Haven experiences a range of temperatures throughout the year.
In January, the average low temperature is around 22°F, making it the coldest month.
February remains chilly, and temperatures can be very low, often dropping to 34.7°F on the coldest days.
March sees a slight warming with average temperatures starting to rise.
By April, the weather becomes milder.
May marks the beginning of warmer weather, with highs reaching around 68°F. This trend continues into June with even warmer days.
July is often the hottest month, with temperatures frequently reaching highs of approximately 81°F.
August follows closely as another warm month with average high temperatures around 81°F.
September begins the transition to cooler weather.
October and November continue to cool down, while December ushers in colder days again, with the average high dropping to around 42°F.
December is also noted for receiving the most rainfall, approximately 3.86 inches over 12.5 days.
The variation in temperature throughout the year ensures distinct seasons, making New Haven’s climate diverse and interesting for residents and visitors alike.
Average Precipitation In New Haven, Connecticut
New Haven, Connecticut experiences varying levels of precipitation throughout the year, including both rainfall and snowfall. The area sees significant rain during several months, while snowfall is common during the winter.
Average Rainfall In New Haven, Connecticut
Rainfall in New Haven is distributed throughout the year, with some months receiving more rain than others.
June is typically the wettest month, averaging about 5.2 inches of rain. Other rainy months include March and October.
During these months, residents can expect frequent rainy days, which contribute to the city’s lush vegetation.
Winter months also see substantial rain, often mixed with snow.
In contrast, September usually has the least rain, with an average of just 3 inches.
Average Snow In New Haven, Connecticut
Snowfall in New Haven is a common occurrence during the winter, especially between December and February.
January is typically the snowiest month, with an average snowfall of about 10 inches. This period of the year often sees temperatures dropping, causing significant snow and ice accumulation. Articles like those on snow and ice offer more insights on managing winter conditions.
While New Haven doesn’t experience snowfall year-round, residents should anticipate occasional heavy snow that can affect daily activities.
The city’s infrastructure is well-prepared to handle winter storms, ensuring roads and public spaces remain accessible.
Average Sun In New Haven, Connecticut
New Haven experiences varying amounts of sunshine throughout the year, influenced by changes in daylight hours, cloud cover, and atmospheric conditions. This section explores how much solar energy New Haven receives daily.
Average Daily Shortwave Solar Energy In New Haven, Connecticut
New Haven receives significant amounts of sunlight and solar energy, particularly in the summer months.
During July, the sun’s intensity is highest, with average daily shortwave solar energy peaking around 6.5 kWh per square meter. This corresponds with longer daylight hours and clearer skies.
In contrast, December has the lowest daily solar energy, around 1.6 kWh per square meter, due to shorter days and increased cloud cover.
Throughout the year, the average daily shortwave solar energy varies, reflecting seasonal changes in daylight and weather patterns.
Residents can expect approximately 58% of days to be sunny or partly cloudy, offering ample sun exposure for outdoor activities.
Detailed climate data can be found at Weather World and Weather Atlas.
Average Humidity In New Haven, Connecticut
New Haven, Connecticut, experiences a range of humidity levels throughout the year.
The most humid month is September, with an average relative humidity of 72.0% (source). During this month, the air can feel quite muggy.
In contrast, April is the least humid month with an average relative humidity of 58.0% (source). This is the time when the air tends to feel the driest.
Here’s a table illustrating the average humidity by month:
| Month | Average Relative Humidity (%) |
|---|---|
| January | 66.0 |
| February | 65.0 |
| March | 60.0 |
| April | 58.0 |
| May | 63.0 |
| June | 66.0 |
| July | 69.0 |
| August | 71.0 |
| September | 72.0 |
| October | 68.0 |
| November | 66.0 |
| December | 67.0 |
On days with higher humidity, humidity often crosses dew point temperatures, making it feel warmer and more uncomfortable.
New Haven’s weather can be partly cloudy, which affects perceived humidity.
The interplay of temperature, dew point, and humidity makes for varying comfort levels throughout the year.
Average Wind In New Haven, Connecticut
New Haven experiences varying wind patterns throughout the year.
In the winter, winds are often stronger due to seasonal storms. During this period, the wind speed can average between 10 to 15 miles per hour.
Spring brings moderate winds, typically ranging from 8 to 12 miles per hour.
Summer months usually have lighter winds, averaging around 6 to 10 miles per hour. July is one of the calmest months.
Autumn sees an increase in wind speed again, often averaging between 8 to 13 miles per hour.
| Month | Average Wind Speed (mph) |
|---|---|
| January | 10-15 |
| February | 10-15 |
| March | 10-14 |
| April | 8-12 |
| May | 7-11 |
| June | 6-10 |
| July | 6-9 |
| August | 6-9 |
| September | 7-11 |
| October | 8-13 |
| November | 9-14 |
| December | 10-15 |
March is often considered the windiest month, with frequent gusts.
For more detailed information on wind patterns, visit the article Wind – ChaseDay.com.
Average Air Quality In New Haven, Connecticut
New Haven often experiences moderate air quality.
According to IQAir, the Air Quality Index (AQI) can vary. On some days, it is rated as moderate, while on others, it improves to good levels.
For example, on some days, the AQI might be around 58, but on better days, it can drop to 17.
Air Quality Data
| Air Quality Indicator | Value | Description |
|---|---|---|
| AQI | 17 – 58 | Good to Moderate |
| PM2.5 | 8 µg/m³ | Typical Daily Levels |
| PM10 | 17 µg/m³ | Typical Daily Levels |
| Current Temperature | 71.6°F | Comfortable |
Other Factors
Pressure: Regular atmospheric pressure in New Haven remains stable, contributing to the overall air quality.
Visibility: On misty days, visibility drops slightly but remains clear on most days.
For more detailed and real-time information on air quality in New Haven, visit AccuWeather and IQAir.
Tips for Residents
- Use air purifiers at home, especially on days with higher pollution levels.
- Limit outdoor activities on days when the AQI is moderate.
- Monitor real-time data to stay informed about daily air quality.
Topography Of New Haven, Connecticut
New Haven is located in southern Connecticut along the northern shore of Long Island Sound.
The terrain consists of both flat and gently rolling areas.
New Haven’s average elevation is 66 feet (20 meters) above sea level. The coastal city is influenced heavily by its proximity to Long Island Sound, which moderates the climate and affects the topographical features.
Key Features
- Location: South Central Connecticut Planning Region
- Average Elevation: 66 ft (20 m)
- Coordinates: 41.24643° N, 72.99807° W to 41.35060° N, 72.86081° W
- Area: 18.85 square miles
Terrain
The city lies in a transitional zone with hilly regions inland.
The highest points are found away from the immediate coastal regions.
The unique topography impacts local weather patterns, creating milder winters and cooler summers compared to inland areas.
Natural Surroundings
The proximity to Long Island Sound is significant.
It not only moderates temperatures but also shapes the city’s coastal and terrain features.
The sound provides scenic views and influences the city’s natural and built environments.
Extreme Weather Events That Occur In New Haven, Connecticut
New Haven, Connecticut faces various extreme weather events throughout the year.
Flooding is becoming increasingly common.
Due to climate change, 100-year floods, which used to be rare, can now happen more frequently, even as often as once a decade.
Heavy rainfall periods have also increased.
The National Climate Assessment shows that extreme precipitation is more intense in the Northeast, leading to more frequent and severe floods.
Tornadoes, while rarer, can still occur.
Connecticut experienced a tornado along with severe winds and scorching heat, indicating the variety of weather extremes possible in the region.
New Haven winters can be harsh, bringing freezing temperatures and snowstorms.
In January, temperatures can drop to an average low of 22°F.
Snowfall, although variable, often contributes to road closures and power outages.
Heatwaves can also hit the area, with temperatures occasionally soaring past 90°F during summer months.
These events pose risks of heat exhaustion and dehydration, impacting especially the elderly and young children.
Best Time Of The Year To Visit New Haven, Connecticut
New Haven, Connecticut offers unique experiences throughout the year. Each season presents something special, from vibrant spring blooms to colorful autumn foliage.
What Is New Haven, Connecticut Like In Spring
Spring in New Haven is mild and full of new growth.
Temperatures range between 40°F and 60°F.
It’s a great time for outdoor activities like hiking and visiting parks as the flowers begin to bloom.
Rainfall is moderate, so bringing an umbrella is a good idea.
Spring is also ideal for exploring the local botanical gardens and enjoying outdoor festivals.
Visitor attractions, such as the Yale University campus, are less crowded, making it a perfect time to explore without large crowds.
What Is New Haven, Connecticut Like In Summer
Summer in New Haven is warm and sometimes humid.
Average highs reach 85.7°F in July, making it the hottest month.
The shoreline invites visitors to enjoy beach activities and water sports.
Local events and open-air concerts are common during summer.
As the sun is strong, wearing sunscreen and staying hydrated is important.
Despite occasional rain showers, most days are sunny.
Beaches and parks are filled with locals and tourists alike, making it a lively time to visit.
What Is New Haven, Connecticut Like In Fall
Fall is one of the best times to visit New Haven due to the stunning autumn foliage.
Temperatures fall between 45°F and 70°F, providing cool, comfortable weather.
The vibrant colors of the leaves attract many visitors.
Local farms offer apple picking and pumpkin patches.
November marks the beginning of cooler weather, leading up to winter.
The city often hosts fall festivals and harvest events.
What Is New Haven, Connecticut Like In Winter
Winter in New Haven can be quite cold, with temperatures often between 20°F and 40°F. Snowfall varies, creating beautiful winter landscapes.
Indoor activities include visiting museums, theaters, and cozy cafes.
Holiday decorations and events make December a festive time. The windiest month, February, may require bundling up when going outside.
Ice skating and other winter sports are enjoyed by locals and visitors. Heated indoor attractions are a good alternative when it gets too chilly outside.