Manchester, New Hampshire is known for its varied weather throughout the year. This city in the United States experiences a humid continental climate, with cold, snowy winters and warm, humid summers.
Rain falls throughout the year in Manchester, with October being the wettest month, averaging 3.9 inches of rainfall.
Winters bring an average of 58 inches of snow, transforming the city into a winter wonderland.
Temperatures in Manchester fluctuate significantly, reflecting the typical pattern in the northern hemisphere.
January is the coldest month, with average temperatures around 25°F, while July is the warmest, averaging 73°F.
This variation makes Manchester a place of distinct seasonal changes, where residents and visitors can enjoy different kinds of weather activities year-round.
Manchester’s climate data reveals consistency in weather over the years, making it a reliable spot for weather predictions.
With an annual rainfall of 44 inches, the city surpasses the US average.
For those interested in more specific data or who are traveling through Portsmouth International Airport at Pease, understanding the city’s weather can help in planning activities and travels.
Average Temperature in Manchester, New Hampshire
The temperature in Manchester, New Hampshire varies widely throughout the year.
January is the coldest month, with an average low of 17°F and a high of 33°F. Meanwhile, the warmest month is July, where the temperature ranges from 62°F to 82°F.
The following table highlights the average temperatures for each month:
| Month | Average Low (°F) | Average High (°F) |
|---|---|---|
| January | 17 | 33 |
| February | 19 | 36 |
| March | 27 | 45 |
| April | 37 | 57 |
| May | 48 | 70 |
| June | 57 | 78 |
| July | 62 | 82 |
| August | 60 | 80 |
| September | 52 | 72 |
| October | 41 | 61 |
| November | 32 | 48 |
| December | 22 | 37 |
Manchester experiences a wide range of temperatures across different seasons. For more detailed articles on temperature patterns, visit Temperature – ChaseDay.com.
During autumn months like September and October, temperatures begin to drop, making it a moderately cool time.
By April and May, the weather starts to warm up with highs around the 50s and 60s.
Winter temperatures typically range from the high teens to the mid-30s, creating a chilly environment. Summer brings warmer weather with highs often reaching into the 80s.
These temperature changes significantly impact daily life and are important to consider when visiting or living in Manchester.
Average Precipitation in Manchester, New Hampshire
Manchester, New Hampshire experiences a mix of rain and snow throughout the year. Rainfall is fairly consistent, while snowfall varies more with the seasons.
Average Rainfall in Manchester, New Hampshire
Manchester receives about 39 inches of rain annually.
Rainfall is fairly spread out over the year, but the wettest month is typically August. In August, the city can receive up to 4 inches of rain.
On average, there are about 130 rainy days each year.
June and July also see significant rainfall, with averages around 3.5 inches per month. The driest month is usually February, which gets less than 3 inches of rain.
This consistent rainfall supports the lush vegetation in the region and ensures that water sources remain plentiful.
Average Snow in Manchester, New Hampshire
Manchester experiences snowy winters, with an average annual snowfall of around 58 inches.
Snow typically falls from November through March, with January being the snowiest month. January can see up to 15 inches of snow.
Snowfall amounts can vary significantly from year to year. Some years might experience lighter snowfall, while others can see much heavier amounts.
For more details on snow patterns and historical data, there are many resources available that track these changes in detail.
Snow and ice are common in the winter months, affecting everyday activities and travel in the region.
Average Sun in Manchester, New Hampshire
Manchester experiences a variety of weather patterns throughout the year, including fluctuations in sunshine and cloud cover. Residents can typically expect clear skies, but there are also months with significant cloud cover.
Average Daily Shortwave Solar Energy in Manchester, New Hampshire
The average daily shortwave solar energy is an important factor in understanding sun exposure.
During summer months, Manchester receives more solar energy due to longer days and clearer skies.
The winter months have less solar energy because of shorter days and more frequent cloud cover.
January experiences the least amount, averaging about 2.5 kWh/m² per day, while June reaches the highest at around 6.5 kWh/m² per day.
Manchester’s positioning impacts sunrise and sunset times, contributing to the hours of sunlight and UV index.
The city often enjoys over 14 hours of sunlight during the peak of summer. By contrast, winter days are much shorter, with daylight lasting around 9 hours.
Average Humidity in Manchester, New Hampshire
Manchester, New Hampshire experiences varying levels of humidity throughout the year.
Relative Humidity Levels:
- Winter Months (December – February): Typically ranges from 60% to 80%. The cold weather can make the air feel dry even though the relative humidity is high.
- Summer Months (June – August): Relative humidity often falls between 50% and 70%.
Monthly Averages:
- January: Around 72%
- April: Approximately 64%
- July: Close to 55%
- October: Around 68%
Overall, the average daily relative humidity in Manchester is often higher in the morning and lower in the afternoon.
This pattern is common due to daytime heating, which reduces relative humidity.
Impact of Weather Conditions:
- Cold Winters: The air tends to hold less moisture when temperatures are low, leading to higher relative humidity levels.
- Warm Summers: The warmer air can hold more moisture, but afternoon temperatures can decrease relative humidity.
Manchester also experiences precipitation averaging around 40 inches annually, which can affect local humidity.
Frequent rainfall can lead to increased relative humidity, especially during the rainy season in spring and fall.
Average Wind in Manchester, New Hampshire
Manchester, New Hampshire, experiences varying wind speeds throughout the year.
The windiest month is February, with an average hourly wind speed of 6.6 miles per hour. In contrast, the calmest month is August, where the average hourly wind speed drops to 3.7 miles per hour.
Wind Speed Overview
- Windiest Month: February (6.6 mph)
- Calmest Month: August (3.7 mph)
The period with the least wind lasts from April 25 to November 15. During this time, the city enjoys calmer winds, averaging around 4-5 miles per hour.
Monthly Wind Speeds
Below is a list of average wind speeds for a few months:
- January: 5.3 mph
- March: 5.9 mph
- May: 4.4 mph
- July: 4.1 mph
- October: 4.2 mph
- December: 5.2 mph
These wind speeds contribute to weather conditions that locals experience daily.
It also shapes activities like outdoor events and sports, where calmer days might be more desirable for some events.
Average Air Quality in Manchester, New Hampshire
The air quality in Manchester, New Hampshire generally falls within the “Good” category.
Air Quality Index (AQI) Levels:
- Good (0-50): Manchester often sees AQI in this range, indicating clear air with little or no risk to health.
- Moderate (51-100): At times, air quality can reach moderate levels, posing a minimal risk for certain sensitive groups.
The AccuWeather report shows localized air quality indexes that residents can monitor to plan their daily activities better.
Common Pollutants
Manchester’s air quality is affected by two main pollutants:
- Particle Pollution (PM2.5): Fine particles that can cause respiratory health issues.
- Ozone: Can cause breathing problems and other health issues, especially during the warmer months.
The New Hampshire Department of Environmental Services provides current data on ground-level ozone and fine particles, helping residents stay informed about air quality conditions year-round.
Real-Time Monitoring
Using tools like IQAir, residents can access real-time and historical AQI data, temperature, and wind conditions.
These tools are essential for planning outdoor activities, especially for those with respiratory conditions.
Health Tips
- Check Daily AQI: Residents should keep an eye on daily AQI levels to stay aware of air quality changes.
- Limit Outdoor Activities: On days with higher pollution levels, limiting outdoor activities can help reduce exposure.
Topography of Manchester, New Hampshire
Manchester is located in Hillsborough County, New Hampshire. Its coordinates are approximately 42.89035°N latitude and 71.51275°W longitude. The city covers an area with a variety of elevations.
Elevation Details:
- Average Elevation: 315 feet
- Minimum Elevation: 105 feet
Manchester’s terrain includes hills and valleys, contributing to its varied landscape. These elevations affect local weather patterns and precipitation.
Geographical Boundaries:
- Northern Boundary: Around 43.05178°N
- Western Boundary: Approximately 71.61479°W
- Eastern Boundary: Roughly 71.37543°W
The Merrimack River runs through the city, adding to its diverse terrain. This river has historically influenced Manchester’s development and continues to be a key feature of its topography.
Manchester’s location and elevation play roles in its climate, making it a unique city in New Hampshire.
Extreme Weather Events That Occur in Manchester, New Hampshire
Manchester, New Hampshire, experiences a variety of extreme weather events throughout the year. These events can have significant impacts on the local community.
1. Winter Storms: Manchester frequently encounters severe winter storms. These storms can bring heavy snowfall, ice, and strong winds. Snowfall can sometimes exceed 12 inches in a single event, leading to dangerous travel conditions and power outages.
2. Flooding: Heavy rainfall can lead to flooding, especially in low-lying areas. Manchester experiences periods of intense rainfall, which can cause rivers and streams to overflow. Flooding can damage property and infrastructure.
3. Severe Thunderstorms: During the warmer months, severe thunderstorms are common. These storms can produce strong winds, hail, and lightning. Thunderstorms can also lead to flash flooding and downed power lines.
4. Heat Waves: Rising temperatures bring the risk of heat waves. Temperatures can soar into the 90s°F, creating hazardous conditions, particularly for vulnerable populations. Prolonged heat can lead to heat-related illnesses.
| Weather Event | Common Impacts |
|---|---|
| Winter Storms | Heavy snowfall, icy roads, power outages |
| Flooding | Property damage, infrastructure issues |
| Severe Thunderstorms | Strong winds, hail, lightning, flash flooding |
| Heat Waves | High temperatures, increased risk of heat-related illnesses |
For updates and safety information on these events, visit the New Hampshire Department of Health and Human Services Weather Hazards page.
Best Time of the Year to Visit Manchester, New Hampshire
The best time to visit Manchester, New Hampshire, depends on what you enjoy.
Summer brings the warmest weather, while spring and fall offer pleasant temperatures for outdoor activities. Winter is cold but perfect for winter sports.
What is Manchester, New Hampshire Like in Spring
Spring in Manchester begins to warm up after the cold winter.
Temperatures range from the mid-40s°F to the low 60s°F.
Rainfall is common, with March and April seeing frequent showers.
This is a great time to enjoy the blooming flowers and green landscapes. Outdoor activities like hiking and visiting parks become popular as the weather warms.
Spring Months:
- March: Still chilly, average highs around 45°F.
- April: Warmer, with highs near 57°F.
- May: Pleasant, with temperatures often around 68°F.
What is Manchester, New Hampshire Like in Summer
Summer is the warmest season in Manchester.
July is the hottest month, with an average maximum temperature of 28°C (82°F).
The weather is perfect for outdoor festivals, barbecues, and swimming.
The tourism score is highest during this season, with many visiting for the warm weather.
Nights are comfortable, with lows around the mid-60s°F.
Summer Months:
- June: Warm with highs around 75°F.
- July: Hottest, around 82°F.
- August: Still warm, highs near 80°F.
What is Manchester, New Hampshire Like in Fall
Fall brings cooler temps and beautiful foliage. The colors of the leaves are a highlight, drawing many visitors.
Temperatures drop from the high 70s°F in September to the mid-50s°F by November.
This season also experiences less rainfall compared to spring, making it ideal for hiking and scenic drives.
Fall Months:
- September: Pleasant, around 73°F.
- October: Cooler, with highs near 61°F.
- November: Chilly, averaging around 52°F.
What is Manchester, New Hampshire Like in Winter
Winter in Manchester is cold and snowy, with temperatures often below freezing.
January is the coldest month, with average highs around 28°F and lows in the upper teens.
Snowfall is common, creating opportunities for skiing, snowboarding, and other winter sports.
Despite this, many find it too cold for extended outdoor activities.
Winter Months:
- December: Snowy, averaging 31°F.
- January: Coldest, with highs around 28°F.
- February: Begins to warm slightly, averaging 32°F.