Climate and monthly weather forecastManchester, NH
Climate and monthly weather forecast
The climate of Manchester
Manchester, New Hampshire, positioned in the northeastern part of the United States, is characterized by a Humid continental climate accompanied by no dry season and a warm summer. This classification of climate, also referred to as a Dfb by the Köppen climate classification, brings an overall cold to moderate temperature range to the region.Throughout the year, the average high and low temperatures typically fluctuate from a low of 18°F (-7.8°C) in January to a high of 81.7°F (27.6°C) in July. The relative humidity levels are mostly stable year-round, maintaining an average percentage between 72% and 81%. Rainfall patterns are noticeable, as the city experiences on average 1.1" (28mm) to 1.38" (35mm) of rain per month, leading to about four and a half to twelve days of rainfall.
In terms of unique weather patterns, there is no distinct dry season, and the summer months are generally warm, leading to a substantial temperature variation throughout the year. Snowfall in Manchester also follows a seasonal pattern, with the highest inches of snow registered in December at 2.99" (76mm), while during the summer, no snowfall is recorded.
The best time to visit Manchester
To experience the warmth of a Humid continental climate, it is recommended to visit Manchester between June and August. During these months, the temperatures range from an agreeable 66.9°F (19.4°C) to 81.7°F (27.6°C), providing optimum conditions to engage in outdoor activities. The city sees longer daylight hours of approximately 14.7 hours in May to 15.3 hours in June. The sunshine duration also peaks in July with 10.1 hours, providing ample opportunities for exploration.The worst time to visit Manchester
Visiting Manchester is generally discouraged in the cold months between December and February. These months see lower temperatures ranging from 18°F (-7.8°C) in January to 33.3°F (0.7°C) in February, accompanied by increased snowfall of up to 2.99" (76mm) in December. The reduced daylight hours, around 9.4 hours in January and a low amount of sunshine duration of 4.8 hours in December, also contribute to less than ideal conditions for outdoor activities.Spring weather in Manchester
In Manchester, the spring season, which ranges from March to May, is marked by a gradual increase in temperature from 41.2°F (5.1°C) in March to 66.9°F (19.4°C) in May. Rainfall during these months slightly increases, with rainfall days ranging between 8.3 in March and peaking at 12 in May. In contrast, snowfall significantly decreases from 1.85" (47mm) in March to virtually none by May.Summer weather in Manchester
Summer in Manchester spans from June to August, and it is characterized by the warmest temperatures of the year, ranging from 74.5°F (23.6°C) in June to a high of 81.7°F (27.6°C) in July. Rainfall remains relatively consistent with days of rainfall sitting at just above 11. Despite the rain, ample sunshine is also present during these months, with July registering the highest average of sunshine hours at 10.1.Autumn weather in Manchester
Autumn in Manchester brings a decrease in temperature from 72.1°F (22.3°C) in September to 46.6°F (8.1°C) in November. The number of rainfall days decreases throughout the season, starting from 8.4 in September to 7.2 in November. Meanwhile, snowfall begins to appear, with November recording an average of 0.75" (19mm).Winter weather in Manchester
The winter season in Manchester is cold, with temperatures declining from 36.3°F (2.4°C) in December to a yearly low of 18°F (-7.8°C) in January. The amount of snowfall sees an increase in this period, reaching 2.99" (76mm) in December. Days of snowfall also increase, peaking at 7.1 in December. Despite the cold conditions, the winter season is impressive for its snowy landscape and winter sports opportunities.Weather in January
Manchester, New Hampshire, sees the new year in with some of its coldest weather. Though the crisp air features far less snowfall than December, at 2.4" (61mm) of snow. This decrease in snowfall is balanced by a relatively high percentage of cloud cover, making for several overcast days. Weather in January »Weather in February
Even with the plunge past the midpoint of winter, February's weather in the city doesn't show dramatic shifts from January's. The mercury just inches upward, although the snow continues to diminish, reaching as low as 2.32" (59mm). Weather in February »Weather in March
Spring begins to make itself known in Manchester during March. There is a leap in daily temperatures, yet at the same time, the city gets a final dusting of winter snow, totaling 1.85" (47mm). As the snow makes its exit, daylight increases by more than an hour compared to February, a welcome respite for residents. Weather in March »Weather in April
April in Manchester brings a true thaw, with daily temperatures taking a turn towards warmth and winter snow finally giving way to rain showers. A notable feature of the month is the reduction of snowfall to just 0.91" (23mm). The increased rainfall nurtures the city's blossoming flora, making it a good time for nature walks. Weather in April »Weather in May
May tempers the refreshing spring into something resembling the beginnings of a muted summer. Despite warming trends, it isn't a dry month; with remnants of April showers in the form of 0.98" (25mm) of rain. The city becomes a hub of vibrant life, thanks to the bounty of sunlight illuminating the blue skies. Weather in May »Weather in June
June signals the arrival of summer in Manchester with the highest daylight hours of the year at 15.3 hours. The pleasant breezes balance out the heat, creating a comfortable atmosphere, even though rainfall climbs slightly to 1.18" (30mm). Weather in June »Weather in July
If Manchester has a hot season, July holds the best claim to the title as the mercury climbs to 81.7°F (27.6°C). The absence of snow and the eleven rain days on average define the month. With the UV Index reaching its peak, it's a key time for summer dressing and sunscreen. Weather in July »Weather in August
August continues July's heat, but the decreasing daylight announces the imminent arrival of autumn. The month is typically defined by 1.1" (28mm) of rainfall. The decrease in wind speed at 5.1mph (8.2km/h) adds to the still, warm atmosphere. Weather in August »Weather in September
As summer begins to fade into fall, September sees a drop in daily temperatures in Manchester. A significant reduction in rainfall to 0.79" (20mm) trademarks the advent of the dry season. Clear days and mild temperatures make it a great time to enjoy local festivities. Weather in September »Weather in October
October welcomes autumn in earnest, with a significant drop in temperatures and an increase in rainfall to 1.38" (35mm). Outdoor activities give way to indoor pursuits as Manchester prepares itself for the winter to come. Sweaters and warm beverages become the order of the day, and the leaf-peeping season reaches its climax. Observing a mild shift, the average high-temperature during October reduces from September's pleasant 72.1°F (22.3°C) to a mild 59.2°F (15.1°C). Weather in October »Weather in November
November in Manchester is primarily characterized by the return of snow, as evidenced by the monthly total of 0.75" (19mm). Dwindling sunshine hours, drop in temperatures, and the picking up of the wind speeds underscore the shift towards winter. Weather in November »Weather in December
December marks the beginning of winter in Manchester, with the city's weather taking a decisively cold turn. The most noticeable change is in the form of snowfall, which increases to 2.99" (76mm) compared to November. Light and joy define the festive month with holiday decorations lighting up the shorter, darker days. Weather in December »Updated: Jun 6, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
With an average high-temperature of 30.6°F (-0.8°C) and an average low-temperature of 18°F (-7.8°C), January is the coldest month.
The month with the least rainfall is January, when the rain falls for 4.1 days and typically collects 0.75" (19mm) of precipitation.
In Manchester, during the entire year, the rain falls for 104.4 days and collects up to 12.95" (329mm) of precipitation.
January through May, October through December are months with snowfall.
In Manchester, during the entire year, snow falls for 26.1 days and aggregates up to 11.54" (293mm) of snow.
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2.
February is the most humid month in Manchester, with an average relative humidity of 81%.
With an average of 4.6h of sunshine, February has the least sunshine of the year in Manchester.
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
April is the least humid month in Manchester, with an average relative humidity of 72%.
In Manchester, snow does not fall in June through September.
The month with the longest days in Manchester is June, with an average of 15h and 18min of daylight.
June through August, with an average maximum UV index of 6, are months with the highest UV index.
Manchester records the warmest temperatures in July, averaging a high of 81.7°F (27.6°C) and a low of 61°F (16.1°C).
With an average of 10.4h of sunshine, August has the most sunshine of the year.
The month with the most rainfall is October, when the rain falls for 9.4 days and typically aggregates up to 1.38" (35mm) of precipitation.
December is the month with the most snowfall. Snow falls for 4 days and accumulates 2.99" (76mm) of snow.
With an average of 9h and 6min of daylight, December has the shortest days of the year.
Average temperature
Manchester, NH
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.6°F).
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure
Manchester, NH
- Average pressure in January:
30.01"Hg - Average pressure in February:
29.99"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
30"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.94"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Manchester, NH
- Average wind speed in January:
8.3mph - Average wind speed in February:
8.1mph - Average wind speed in March:
7.9mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.7mph - Average wind speed in November:
7.1mph - Average wind speed in December:
7.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Manchester, NH
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (72%).
Average rainfall
Manchester, NH
- Average rainfall in January:
0.75" - Average rainfall in February:
0.83" - Average rainfall in March:
1.18" - Average rainfall in April:
1.06" - Average rainfall in May:
0.98" - Average rainfall in June:
1.18"
The wettest month (with the highest rainfall) is October (1.38").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days
Manchester, NH
- Average rainfall days in January:
4.1 days - Average rainfall days in February:
4.5 days - Average rainfall days in March:
8.3 days - Average rainfall days in April:
9.8 days - Average rainfall days in May:
12 days - Average rainfall days in June:
12.1 days
- Average rainfall days in July:
11.9 days - Average rainfall days in August:
10.4 days - Average rainfall days in September:
8.4 days - Average rainfall days in October:
9.4 days - Average rainfall days in November:
7.2 days - Average rainfall days in December:
6.3 days
The month with the highest number of rainy days is June (12.1 days).
The month with the least rainy days is January (4.1 days).
Average snowfall
Manchester, NH
- Average snowfall in January:
2.4" - Average snowfall in February:
2.32" - Average snowfall in March:
1.85" - Average snowfall in April:
0.91" - Average snowfall in May:
0.04" - Average snowfall in June:
0"
The month with the highest snowfall is December (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Manchester, NH
- Average snowfall days in January:
7.1 days - Average snowfall days in February:
5.9 days - Average snowfall days in March:
5.7 days - Average snowfall days in April:
1.1 days - Average snowfall days in May:
0.1 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.5 days - Average snowfall days in November:
1.7 days - Average snowfall days in December:
4 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Manchester, NH
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
5h and 6min - Average sunshine in February:
4h and 36min - Average sunshine in March:
5h and 42min - Average sunshine in April:
8h and 6min - Average sunshine in May:
8h and 24min - Average sunshine in June:
9h and 0min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 24min - Average sunshine in September:
8h and 24min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 30min - Average sunshine in December:
4h and 48min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days
Manchester, NH
- Average sunshine days in January:
21.3 days - Average sunshine days in February:
18.9 days - Average sunshine days in March:
18.6 days - Average sunshine days in April:
18.3 days - Average sunshine days in May:
17.1 days - Average sunshine days in June:
16.7 days
- Average sunshine days in July:
17.1 days - Average sunshine days in August:
18 days - Average sunshine days in September:
20 days - Average sunshine days in October:
20 days - Average sunshine days in November:
21 days - Average sunshine days in December:
21.3 days
The months with the most sunshine days are January and December (21.3 days).
The month with the least sunshine days is June (16.7 days).
Average UV index
Manchester, NH
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover
Manchester, NH
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility
Manchester, NH
The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).
