Hampton Beach

New Hampshire Weather in January

Average temperatures, rainfall, sunshine and the best places to visit in New Hampshire, the United States of America in January.

Thinking about venturing to New Hampshire, the United States of America this January and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in New Hampshire in January

New Hampshire, the United States of America is a region in the United States of America. January in New Hampshire generally has very cold temperatures, with moderate precipitation. January falls during the winter season.

Temperatures

The average maximum temperatures are very cold and range from -4°C (25°F) in Waterville Valley to 2°C (36°F) in Salem. Nighttime temperatures generally drop to -8°C (18°F) in Salem and -14°C (7°F) in Waterville Valley. Typically, it's the chilliest month of the year. Making it a great time for staying indoors and enjoying the warmth. Make sure you're prepared by packing the right winter outfits.

To learn more about the conditions in specific areas of New Hampshire, the United States of America, check out the map below.

Precipitation

In January, precipitation varies across different areas. From moderate snowfall in Littleton with an average of 53 mm (2.1 in) to moderate snowfall in Waterville Valley with 98 mm (3.9 in). Based on climate data from the last 30 years, Portsmouth typically sees the least rain in this month, making it the driest month of the year.

Average sunshine

Sunshine is moderately available across various locations. In Portsmouth, you can expect around 162 hours of sunlight in January, which gives a pleasant combination of sun and shade. For those who want maximum sunshine, our weather planner can point you toward the sunniest places on Earth.

Explore New Hampshire by month

Pick a month to see the average temperature, rainfall and sunshine in New Hampshire — and find the best time to visit. (based on Portsmouth)

Best Places to Visit in New Hampshire in January

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across New Hampshire.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in New Hampshire

What is the weather like in January for some of the most popular destinations in New Hampshire, the United States of America?

Temperature range in New Hampshire (January)

Precipitation variation in New Hampshire (January)

Portsmouth

In January Portsmouth generally has very low temperatures with maximum daytime temperatures around 1°C (34°F), minimum nighttime temperatures around -8°C (18°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
5°C (41°F)
1°C (34°F)
2°C (36°F)
Min temperature
-4°C (25°F)
-8°C (18°F)
-8°C (18°F)
Monthly sun hours
134 hours
162 hours
171 hours
Monthly snow/rainfall
128 mm (5 in)
86 mm (3.4 in)
102 mm (4 in)
Monthly rainy days
14 days
12 days
9 days
Weather conditions

Nashua

In January Nashua generally has very low temperatures with maximum daytime temperatures around 2°C (36°F), minimum nighttime temperatures around -9°C (16°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
5°C (41°F)
2°C (36°F)
2°C (36°F)
Min temperature
-5°C (23°F)
-9°C (16°F)
-9°C (16°F)
Monthly sun hours
134 hours
162 hours
171 hours
Monthly snow/rainfall
124 mm (4.9 in)
83 mm (3.3 in)
98 mm (3.9 in)
Monthly rainy days
13 days
12 days
9 days
Weather conditions

Weirs Beach

In January Weirs Beach generally has very low temperatures with maximum daytime temperatures around -1°C (30°F), minimum nighttime temperatures around -11°C (12°F) and moderate monthly snowfall. So on average the conditions are poor that month.

December
January
February
Max temperature
2°C (36°F)
-1°C (30°F)
0°C (32°F)
Min temperature
-6°C (21°F)
-11°C (12°F)
-11°C (12°F)
Monthly sun hours
134 hours
162 hours
171 hours
Monthly snowfall
111 mm (4.4 in)
71 mm (2.8 in)
82 mm (3.2 in)
Monthly rainy days
14 days
12 days
9 days
Weather conditions

Dover

In January Dover generally has very low temperatures with maximum daytime temperatures around 1°C (34°F), minimum nighttime temperatures around -9°C (16°F) and moderate monthly snow/rainfall. So on average the conditions are poor that month.

December
January
February
Max temperature
4°C (39°F)
1°C (34°F)
2°C (36°F)
Min temperature
-5°C (23°F)
-9°C (16°F)
-9°C (16°F)
Monthly sun hours
134 hours
162 hours
171 hours
Monthly snow/rainfall
117 mm (4.6 in)
72 mm (2.8 in)
94 mm (3.7 in)
Monthly rainy days
13 days
11 days
9 days
Weather conditions

Tilton

In January Tilton generally has very low temperatures with maximum daytime temperatures around -1°C (30°F), minimum nighttime temperatures around -11°C (12°F) and moderate monthly snowfall. So on average the conditions are poor that month.

December
January
February
Max temperature
2°C (36°F)
-1°C (30°F)
0°C (32°F)
Min temperature
-6°C (21°F)
-11°C (12°F)
-11°C (12°F)
Monthly sun hours
134 hours
162 hours
171 hours
Monthly snowfall
115 mm (4.5 in)
74 mm (2.9 in)
86 mm (3.4 in)
Monthly rainy days
14 days
12 days
10 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in New Hampshire, in the United States of America.

Popular cities in January

Day & night temperatures, rainfall and average weather in New Hampshire in January.

City Weather Day temp Night temp Rainfall
Portsmouth 1°C (34°F) -8°C (18°F) 86 mm (3.4 in)
Nashua 2°C (36°F) -9°C (16°F) 83 mm (3.3 in)
Weirs Beach -1°C (30°F) -11°C (12°F) 71 mm (2.8 in)
Dover 1°C (34°F) -9°C (16°F) 72 mm (2.8 in)
Tilton -1°C (30°F) -11°C (12°F) 74 mm (2.9 in)
Gilford -1°C (30°F) -10°C (14°F) 73 mm (2.9 in)

New Hampshire weather in January: frequently asked questions

What is the weather like in New Hampshire, the United States of America in January?

In January, New Hampshire, the United States of America generally has poor weather conditions. Portsmouth sees daytime temperatures near 1°C (34°F), with nights cooling to roughly -8°C (18°F).

What is the average temperature in New Hampshire, the United States of America in January?

In Portsmouth, the average daytime high in January is 1°C (34°F), while nighttime temperatures drop to around -8°C (18°F).

Does New Hampshire, the United States of America get a lot of snow/rain in January?

January is on the drier side in New Hampshire, the United States of America. Portsmouth averages only about 86 mm (3.4 in), with most days staying dry.

Is January a Good Time to Visit New Hampshire, the United States of America?

Given the typically poor weather conditions in Portsmouth, January may not be the ideal time to visit New Hampshire, the United States of America.

On average, the best time to visit New Hampshire, the United States of America is in September with generally perfect weather in Portsmouth. The weather in January, February, March, April, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in New Hampshire.

Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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