New Hampshire weather
Our guide to the weather in New Hampshire during December
We've looked at the most up-to-date weather data for New Hampshire, covering the last 12 years up to 2024, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about New Hampshire weather in December.
How cold is it in New Hampshire during December?
It's cold in New Hampshire during December. The temperature tops out at around 2℃ during the day, falling away to -5℃ at night. Brrrr! The UV index will be low at this time of year, so not something to worry about. However, if you're going to be outside for long periods it's always a good idea to apply a small amount of sunscreen to exposed skin.
Does it snow in New Hampshire during December?
Yes, although it doesn't snow as much as you might expect. It's worth checking the local forecast a few days before you leave home so that you can pack appropriate footwear and clothing.
Does it rain in New Hampshire during December?
On average, there will be 7 rainy days during the month, amounting to 129.9mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. Of course, some of that rain will actually fall as sleet, snow, and possibly freezing rain. You're not likely to see a thunderstorm during your trip.
Is it windy in New Hampshire during December?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in December. With cold air temperatures at this time of year, any breeze will feel very cold.
Weather in New Hampshire
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December