Climate and monthly weather forecastHanover, NH
Climate and monthly weather forecast
The climate of Hanover
Hanover, New Hampshire, USA, is characterized by a Dfb Köppen climate classification or a Humid continental climate that exhibits no dry season and a warm summer. Geographically, this town is positioned in the Upper Valley region of the Connecticut River, which significantly impacts its weather conditions due to its proximity to the watershed.There are noticeable fluctuations in the weather parameters throughout the year in Hanover. From the temperature perspective, the maximum average temperature fluctuates from a chilly 25°F (-3.9°C) in January to a mild 77.7°F (25.4°C) in July. Conversely, the minimum average temperature ranges from a frosty 12.6°F (-10.8°C) in January to a tolerable 56.5°F (13.6°C) in July. This indicates a wide variability in temperature over the course of the year.
In terms of humidity, Hanover maintains moderately high relative humidity levels from January to December, with minor variations from 75% to 86%. Rainfall in Hanover is evenly distributed throughout the year, ranging from 1.85" (47mm) in September to 2.99" (76mm) in October, with no dry periods. This town experiences significant snowfall, specifically from January to April and in November and December.
Visibility in Hanover is fairly consistent, usually around 4 to 5 miles. Cloud cover fluctuates from a low of 37% in August to a high of 62% in February, reflecting changing weather situations. The pressure remains relatively steady around 29.91" (760mm) to 30.07" (764mm) throughout the year.
The uniqueness of Hanover's climate manifests in its wind speed that measures between 4.8 MPH and 7.4 MPH, accentuated by gusts from 7.5 MPH to 11.4 MPH. Moreover, daylight varies significantly, from a brief 9 hours in winter to a lengthy 15.4 hours in summer, contributing to the distinction of the seasons.
The best time to visit Hanover
The ideal time to visit Hanover is between May and September. During these months, the average high temperatures range from 64.6°F (18.1°C) to 77.7°F (25.4°C), and the low temperatures vary from 44.2°F (6.8°C) to 56.5°F (13.6°C). These temperatures provide a comfortable climate suitable for outdoor activities and sightseeing. In terms of rainfall, this period still has significant precipitation; however, the longer daylight hours between 14.7 to 15.4 hours and the appealing temperatures make it the best time to experience Hanover's beauty.The worst time to visit Hanover
The least favorable time to visit Hanover would be from December to March. These months experience the lowest average temperatures, from 12.6°F (-10.8°C) to 32.5°F (0.3°C), along with the highest average snowfall, accumulating up to 11.57" (294mm). The severe cold, coupled with the short daylight hours ranging from 9 to 9.7 hours, can make this period less convenient for sightseeing and outdoor activities.Spring weather in Hanover
Spring in Hanover is from April to June, characterized by steadily increasing temperatures. The average high temperature shifts from a cool 50.4°F (10.2°C) in April to a balmy 71.6°F (22°C) by June, while the minimum average temperatures rise from 32.5°F (0.3°C) to 50.5°F (10.3°C). Noteworthy rainfall remains consistent during this season, ranging from 2.32" (59mm) to 2.8" (71mm) per month. With an average relative humidity varying from 75% to 78%, spring can feel a dash moist.Summer weather in Hanover
Summer extends from July to September in Hanover. The average high temperatures remain mostly in the 70s°F, while the average minimum temperatures range from 50.5°F (10.3°C) to 56.5°F (13.6°C). This period experiences the longest daylight hours. The average rainfall slightly decreases to around 2.22" (56mm) in months and humidity holds steady around 79%.Autumn weather in Hanover
Autumn in Hanover unfolds from October to November. The average high temperature swings from 54.9°F (12.7°C) to 41.9°F (5.5°C), while the average low temperature shifts from 40.1°F (4.5°C) to 29.5°F (-1.4°C). October records the highest average rainfall, measuring 2.99" (76mm). In terms of daylight hours, it winds down from 11 hours per day in October to 9.7 hours in November.Winter weather in Hanover
Winter in Hanover, stretching from December to March, witnesses the coldest temperatures of the year. The average high temperature plunges from 30.7°F (-0.7°C) in December to 25°F (-3.9°C) in January, with February showing a slight increase to 27.7°F (-2.4°C). However, the average low temperatures remain mostly below freezing, ranging from 12.6°F (-10.8°C) to 21.6°F (-5.8°C). Snowfall during this period is significant, especially in December and February, contributing to a picturesque winter landscape.Weather in January
Hanover, New Hampshire begins the year with a cool and dry winter month. Typical of January, lower temperatures prevail, reaching from a chilly 12.6°F (-10.8°C) to a slightly warmer 25°F (-3.9°C), along with an impressive amount of snowfall at 8.39" (213mm). Weather in January »Weather in February
Transitioning from January, February carries forward the winter chill, albeit with noticeable changes. This month witnesses the highest snowfall accumulating up to 11.57" (294mm). Days become slightly longer, nudging the temperature up marginally, hinting at the upcoming spring. Weather in February »Weather in March
March signals the arrival of spring in Hanover, New Hampshire, leading to subtle shifts in the weather pattern. Relative humidity drops to 84%, from 86% in February, spearheading the transition as winter gives way to spring. In stark contrast to the previous month, snowfall reduces significantly to 6.54" (166mm). Weather in March »Weather in April
April experiences a significant change, as Hanover, New Hampshire is well into spring. A more significant shift is seen in temperatures, oscillating from 32.5°F (0.3°C) to 50.4°F (10.2°C). April also witnesses an increase in rainfall days to 16.3, which nourishes the blossoming flora. Weather in April »Weather in May
May is a time of rejuvenation in Hanover, New Hampshire with nature in full swing. Temperatures continue to rise, with the lower end climbing to 44.2°F (6.8°C). This month is characterized by extended daylight hours, warmer weather, and vibrant greenery aided by moderate rainfall which revives the local ecosystems. Weather in May »Weather in June
The arrival of June marks the beginning of summer in Hanover, New Hampshire, with milder weather conditions than the preceding months. The city sees a further increase in daylight hours, up to 15.4 hours. This month, Hanover enjoys the best visibility of the year - up to 5 miles. Weather in June »Weather in July
As the peak of summer, July stands out in Hanover, New Hampshire. It tops the year with the highest average temperature, varying from 56.5°F (13.6°C) to 77.7°F (25.4°C). Keeping in sync with the trend, the UV Index reaches 5. This month is also associated with lower wind speeds, leading to calm, serene afternoons. Weather in July »Weather in August
August continues the summer trend in Hanover, New Hampshire, albeit with slight changes. Temperature margins narrow down in comparison to July, settling between 54.9°F (12.7°C) and 76.3°F (24.6°C). Days shorten slightly, yet Hanover continues to enjoy 13.9 hours of daylight. Weather in August »Weather in September
September welcomes the onset of Fall in Hanover, New Hampshire. Notably, the rainfall decreases to 1.85" (47mm), providing relief from the rains of previous months. The temperature range continues to decrease while the daylight hours also dwindle down. Weather in September »Weather in October
October offers a full-fledged autumn experience in Hanover, New Hampshire. With the range of temperatures dropping to between 40.1°F (4.5°C) and 54.9°F (12.7°C), the city enjoys comfortable weather conditions. October's cooler weather and relatively high rainfall create ideal conditions for the stunning fall colors. Weather in October »Weather in November
November marks a shift towards wintry conditions in Hanover, New Hampshire. With temperatures dropping yet further from 29.5°F (-1.4°C) to 41.9°F (5.5°C). This month sees the reappearance of snowfall, signifying the beginning of the region's well-known winters. Weather in November »Weather in December
To conclude the year, December brings full-fledged winter to Hanover, New Hampshire. The snowfall once again increases noticeably to 6.85" (174mm). Falling temperatures and heavy snow create an idyllic winter scene and offer opportunities for snowy fun. Weather in December »Updated: Aug 13, 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
Hanover experiences its average lowest temperatures in January, reaching a peak of 25°F (-3.9°C) and a minimum of 12.6°F (-10.8°C).
January and February, with an average relative humidity of 86%, are most humid months.
Throughout the year, there are 156.9 rainfall days, and 28.23" (717mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
Throughout the year, there are 75.5 snowfall days, and 40.83" (1037mm) of snow is accumulated.
The month with the most snowfall is February, when snow falls for 16.3 days and typically aggregates up to 11.57" (294mm) of snow.
The month with the least sunshine is February, with an average of 3.6h of sunshine.
February and December, with an average maximum UV index of 1, are months with the lowest UV index.
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.
The least humid month is May, with an average relative humidity of 75%.
The months with the highest UV index are May through August, with an average maximum UV index of 5.
In Hanover, snow does not fall in June through September.
With an average of 15h and 24min of daylight, June has the longest days of the year.
In Hanover, the peak average temperatures are observed in July, with a high of 77.7°F (25.4°C) and a low of 56.5°F (13.6°C).
August has the most sunshine of the year, with an average of 10.1h of sunshine.
The month with the least rainfall in Hanover is September, when the rain falls for 11.1 days and typically collects 1.85" (47mm) of precipitation.
The month with the most rainfall is October, when the rain falls for 14.1 days and typically aggregates up to 2.99" (76mm) of precipitation.
The month with the shortest days is December, with an average of 9h and 0min of daylight.
Average temperature
Hanover, NH
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (25°F).
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure
Hanover, NH
- Average pressure in January:
30.02"Hg - Average pressure in February:
30"Hg - Average pressure in March:
30.04"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.99"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Hanover, NH
- Average wind speed in January:
7.2mph - Average wind speed in February:
7.1mph - Average wind speed in March:
7.2mph - Average wind speed in April:
7.4mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.5mph
- Average wind speed in July:
5.1mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.1mph - Average wind speed in October:
6mph - Average wind speed in November:
6.5mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Hanover, NH
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (75%).
Average rainfall
Hanover, NH
- Average rainfall in January:
2.05" - Average rainfall in February:
2.17" - Average rainfall in March:
2.01" - Average rainfall in April:
2.6" - Average rainfall in May:
2.32" - Average rainfall in June:
2.8"
- Average rainfall in July:
2.64" - Average rainfall in August:
2.17" - Average rainfall in September:
1.85" - Average rainfall in October:
2.99" - Average rainfall in November:
2.17" - Average rainfall in December:
2.48"
The wettest month (with the highest rainfall) is October (2.99").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days
Hanover, NH
- Average rainfall days in January:
8.9 days - Average rainfall days in February:
7.9 days - Average rainfall days in March:
12.1 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
16.4 days - Average rainfall days in June:
15.7 days
- Average rainfall days in July:
17.2 days - Average rainfall days in August:
15.9 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
14.1 days - Average rainfall days in November:
10.4 days - Average rainfall days in December:
10.9 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is February (7.9 days).
Average snowfall
Hanover, NH
- Average snowfall in January:
8.39" - Average snowfall in February:
11.57" - Average snowfall in March:
6.54" - Average snowfall in April:
2.91" - Average snowfall in May:
0.43" - Average snowfall in June:
0"
The month with the highest snowfall is February (11.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Hanover, NH
- Average snowfall days in January:
16.5 days - Average snowfall days in February:
16.3 days - Average snowfall days in March:
14.6 days - Average snowfall days in April:
5.3 days - Average snowfall days in May:
0.5 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:
1.7 days - Average snowfall days in November:
7.1 days - Average snowfall days in December:
13.5 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Hanover, NH
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - 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 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
3h and 48min - Average sunshine in February:
3h and 36min - Average sunshine in March:
5h and 0min - Average sunshine in April:
7h and 6min - Average sunshine in May:
8h and 12min - Average sunshine in June:
8h and 42min
- Average sunshine in July:
9h and 48min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 18min - Average sunshine in October:
5h and 18min - Average sunshine in November:
4h and 54min - Average sunshine in December:
4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days
Hanover, NH
- Average sunshine days in January:
11.8 days - Average sunshine days in February:
9.8 days - Average sunshine days in March:
10.1 days - Average sunshine days in April:
11.3 days - Average sunshine days in May:
11.9 days - Average sunshine days in June:
12 days
- Average sunshine days in July:
11.3 days - Average sunshine days in August:
12.4 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
12.9 days - Average sunshine days in November:
14.1 days - Average sunshine days in December:
12.3 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (9.8 days).
Average UV index
Hanover, NH
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover
Hanover, NH
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility
Hanover, NH
The months with the highest visibility are April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February, March and September (4mi).
