Climate and monthly weather forecastBretton Woods, NH
Climate and monthly weather forecast
The climate of Bretton Woods
Bretton Woods, New Hampshire, USA, experiences a Humid Continental type of climate according to the Köppen climate classification, denoted as Dfb. This implies a climate characteristic of significant temperature differences between summer and winter seasons, and an ample amount of precipitation distributed throughout the year.Taking a stride through the year, an observer can note considerable fluctuations in all weather parameters. The peak temperature increases progressively from January, hitting an apex in July with an average daily high of 74.1°F (23.4°C). Conversely, the coldest month is typically January with an average low of 8.6°F (-13°C). Relative humidity remains fairly constant, oscillating between 77% in May to a peak of 90% in February.
On an annual scale average, precipitation is marked with a somewhat uniform distribution. However, heavier rainfall is observed in October with an average of 3.62" (92mm), while February records the lowest downpours with 2.56" (65mm). Similarly, snowfall is marked prominently from December to March, with January experiencing a substantial average snowfall of 16.97" (431mm). Sunshine hours per day peak during June and July from 8.1 hours to 9.3 hours respectively.
The best time to visit Bretton Woods
Bearing in mind the dynamic nature of the weather parameters, the best period to visit Bretton Woods largely depends on what an individual seeks. If one relishes warmer temperatures, July seemingly provides an ideal setting with its highest average temperature of 74.1°F (23.4°C). This period also benefits from an extended daylight period of approximately 15.1 hours alongside sufficient sunshine hours that averages at 9.3 hours per day.The worst time to visit Bretton Woods
On the tail end of the spectrum, January and February offer daunting weather conditions for visitors. These months witness the plummet of temperatures, hitting lows of 8.6°F (-13°C) on average in January directly coupled with a relatively short daylight period of around 9.3 hours. The profound snowfall witnessed during this period makes it a challenging time for visits.Spring weather in Bretton Woods
As winter recedes and spring unfurls from March to May, Bretton Woods exhibits gradual warming in temperatures. Average high temperatures climb from 32.5°F (0.3°C) in March to a comfortable 61.2°F (16.2°C) in May. However, nighttime low temperatures may still feel chilly with averages ranging from 18°F (-7.8°C) in March to 41.2°F (5.1°C) in May. During these months, rainfall totals increase, reaching 3.54" (90mm) in April but tapering off slightly to 2.91" (74mm) in May.Summer weather in Bretton Woods
Summers in Bretton Woods, from June to August, express moderately warm conditions. The mercury rises, peaking at 74.1°F (23.4°C) in July before a minimal drop to 72.9°F (22.7°C) in August. Despite the higher humidity which hovers around 80%, the summer provides the year’s highest amount of daylight, reaching up to 15.5 hours in June, providing ample opportunity for outdoor activities.Autumn weather in Bretton Woods
Autumn sees a decline in temperatures from September through November. Average high temperatures lose their summer warmth, dropping from 65.8°F (18.8°C) in September to a cooler 38.3°F (3.5°C) in November. Precipitation peaks in October, hitting a high of 3.62" (92mm), while daylight hours also begin to decrease from September to November.Winter weather in Bretton Woods
Bracing for winter, Bretton Woods exhibits its chilliest season from December to February. The winter months display average low temperatures dropping to as low as 8.6°F (-13°C) in January. These months also see the most snowfall with December receiving an average snowfall of 13.5" (343mm). Despite the lower temperatures and significant snowfall, the winter season provides its unique charm, attracting lovers of winter sports and snow activities.Weather in January
Throughout the beginning of the year, Bretton Woods, New Hampshire exhibits more frigid temperatures than other months. A fascinating characteristic of this icy period comprises the notable incursion of heavy snowfall amounting to 16.97" (431mm), a significant total over 22.1 days. Weather in January »Weather in February
Entering February, residents of Bretton Woods experience a slight increment in temperatures, compared to January, yet the weather remains in the colder spectrum. Humidity levels are observed to rise marginally, enhancing frost accumulations during the morning hours. Weather in February »Weather in March
March brings along a palpable shift in weather conditions in Bretton Woods, New Hampshire from the frigid winter to a more.moderate spring season. Temperature rises up to 32.5°F (0.3°C), but remains below the freezing point. Snowfall perceivably decreases as compared to the preceding months, while rainfall days increase to 9.3 days, marking the onset of the thawing period. Weather in March »Weather in April
Commencement of April marks a significant transformation in Bretton Woods, where the rather restrictive cold weather offers way to more welcoming conditions. The higher temperatures stimulate the blossoming of flora, replacing the monotonous color palette of winter. Weather in April »Weather in May
By May, Bretton Woods, New Hampshire transitions into a full-blown spring weather, exhibiting significant differences from the preceding months. Daylight hours expand greatly, fueling further blooming of flora and an increase in outdoor activities. Weather in May »Weather in June
June unfolds the summer season in Bretton Woods, with temperatures soaring over the previous month. Undeniably, June sees the maximum daylight, stretching to 15.5 hours, bringing longer days and shorter nights. Despite the increase in temperatures, humidity remains moderate, ensuring comfortable living conditions. Weather in June »Weather in July
July exhibits the peak of summer in Bretton Woods, boasting the maximum temperature of 74.1°F (23.4°C). Despite the peak temperature, frequent thunderstorms are known to offer a cool respite from the summer heat. The high pressure of 29.93" (760mm) indicates that July is far from being the calmest month. Weather in July »Weather in August
As August arrives, Bretton Woods experiences a peak in summer weather, although temperatures drop slightly as compared to July. Days continue to be longer, ensuring plenty of daylight for outdoor activities and exploration. The locals experience high humidity levels throughout the day which sometimes results in uncomfortable conditions. Weather in August »Weather in September
The advent of September in Bretton Woods brings along the start of the fall season, characterized by a noticeable drop in temperatures. The countryside becomes a picturesque panorama, with leaves changing color from green to hues of yellow, orange, and red. Weather in September »Weather in October
October sees a further decrease in temperatures in Bretton Woods, New Hampshire. The first half of the month still embraces the fall color palette, but towards the end, there is a nudge towards the colder hues of winter. Mid-October experiences occasional frost, indicating the imminent arrival of winter. Weather in October »Weather in November
November in Bretton Woods represents a radical shift from the fall to winter season. The gentle transition from the cool weather of October to the icy conditions of November takes place swiftly. Snowflakes start to make their appearance, steadily accumulating 12.87" (327mm) over 13.2 snowfall days. Weather in November »Weather in December
In the final month of the year, Bretton Woods finds itself engulfed in deep winter. The weather further cools down from November and marks the return of the more severe winter conditions experienced at the onset of the year. Snow envelops the town, redefining the landscape into a serene white panorama. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Bretton Woods, NH
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (21.9°F).
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (8.6°F).
Average pressure
Bretton Woods, NH
- Average pressure in January:
30"Hg - Average pressure in February:
29.99"Hg - Average pressure in March:
30.03"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.98"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.93"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30"Hg - Average pressure in November:
30.06"Hg - Average pressure in December:
30.03"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Bretton Woods, NH
- Average wind speed in January:
6.9mph - Average wind speed in February:
6.9mph - Average wind speed in March:
6.3mph - Average wind speed in April:
6.5mph - Average wind speed in May:
5.8mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.6mph - Average wind speed in September:
4.7mph - Average wind speed in October:
5.8mph - Average wind speed in November:
6.3mph - Average wind speed in December:
6.6mph
The windiest months (with the highest average wind speed) are January and February (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity
Bretton Woods, NH
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (77%).
Average rainfall
Bretton Woods, NH
- Average rainfall in January:
2.83" - Average rainfall in February:
2.56" - Average rainfall in March:
2.6" - Average rainfall in April:
3.54" - Average rainfall in May:
2.91" - Average rainfall in June:
3.23"
- Average rainfall in July:
2.64" - Average rainfall in August:
2.48" - Average rainfall in September:
2.24" - Average rainfall in October:
3.62" - Average rainfall in November:
2.91" - Average rainfall in December:
3.15"
The wettest month (with the highest rainfall) is October (3.62").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days
Bretton Woods, NH
- Average rainfall days in January:
5.8 days - Average rainfall days in February:
5.2 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
13.8 days - Average rainfall days in May:
17.1 days - Average rainfall days in June:
18.5 days
- Average rainfall days in July:
19.1 days - Average rainfall days in August:
17.8 days - Average rainfall days in September:
13.2 days - Average rainfall days in October:
14.9 days - Average rainfall days in November:
9.8 days - Average rainfall days in December:
8 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is February (5.2 days).
Average snowfall
Bretton Woods, NH
- Average snowfall in January:
16.97" - Average snowfall in February:
17.44" - Average snowfall in March:
14.76" - Average snowfall in April:
14.06" - Average snowfall in May:
2.64" - Average snowfall in June:
0"
The month with the highest snowfall is February (17.44").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Bretton Woods, NH
- Average snowfall days in January:
22.1 days - Average snowfall days in February:
21.9 days - Average snowfall days in March:
20.9 days - Average snowfall days in April:
13.2 days - Average snowfall days in May:
2.8 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:
5.7 days - Average snowfall days in November:
13.2 days - Average snowfall days in December:
21 days
The month with the highest number of snowfall days is January (22.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Bretton Woods, NH
- Average daylight in January:
9h and 18min - 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 48min - Average daylight in June:
15h and 30min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in January:
2h and 48min - Average sunshine in February:
2h and 42min - Average sunshine in March:
3h and 54min - Average sunshine in April:
6h and 0min - Average sunshine in May:
7h and 36min - Average sunshine in June:
8h and 6min
- Average sunshine in July:
9h and 18min - Average sunshine in August:
9h and 18min - Average sunshine in September:
7h and 48min - Average sunshine in October:
4h and 42min - Average sunshine in November:
4h and 6min - Average sunshine in December:
3h and 6min
The months with the most sunshine are July and August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 42min).
Average sunshine days
Bretton Woods, NH
- Average sunshine days in January:
8.8 days - Average sunshine days in February:
5.8 days - Average sunshine days in March:
7.7 days - Average sunshine days in April:
8.8 days - Average sunshine days in May:
10.8 days - Average sunshine days in June:
10.1 days
- Average sunshine days in July:
9.8 days - Average sunshine days in August:
10.3 days - Average sunshine days in September:
14.1 days - Average sunshine days in October:
10.3 days - Average sunshine days in November:
10.9 days - Average sunshine days in December:
8.4 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (5.8 days).
Average UV index
Bretton Woods, NH
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover
Bretton Woods, NH
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility
Bretton Woods, NH
The months with the highest visibility are May, June and July (5mi).
The months with the lowest visibility are January, February, March, April, August, September, October, November and December (4mi).





