The average minimum temperature (usually the minimum temperature is noted during the night) in Nashua in January is -12.0°C (10.4°F). Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time. 57.3 °F: What's the Average Low in New Hampshire? The average low temperatures are in the frigid -4°F (-20°C) to 15°F (-9.4°C), while the average high temperatures are in the 14°F (-10°C) to 34°F (1.1°C) zone. Based on weather … The average minimum temperature (usually the minimum temperature is noted during the night) in Seabrook in January is -5.0°C (23°F). January. Many Free Staters have moved from warmer climates. There are few days during the summer when the humidity becomes unpleasant. The lowest daily average high temperature is 31°F on January 15 . Average Weather during January in Seabrook (New Hampshire), United States of America. Average Weather during January in Nashua (New Hampshire), United States of America. January is usually the coldest month of the year in New Hampshire as the temperatures are in a race towards the bottom. 45.59 inches: How Many Rainy Days a year are there in New Hampshire? The bottom may hit -25°F (-31.7°C) or even lower in January. New Hampshire Climate Audit A site dedicated to the analysis of climate data for the state of New Hampshire, USA ... moving average. 45.05 °F: How Many Inches of Rain per year does New Hampshire get ? Select a destination to see more weather parameters. The January plots from 1895 to 2009 show the actual with trend lines. Annual Weather Averages in Knapp State Airport. The amount of rain/snow in January is normal with an average of 68mm (2.7in). January is the snowiest month in Belknap County with 19.0 inches of snow, and 6 months of the year have significant snowfall. The amount of rain in January is high with an average of 91mm (3.6in). 32.8 °F: What's the Average Temperature in New Hampshire? July is the hottest month for Gilford with an average high temperature of 80.7°, which ranks it as cooler than most places in New Hampshire. What is the temperature in January … This month is known as a chilly month. With an average high-temperature of 29.3°F (-1.5°C) and an average low-temperature of 8.8°F (-12.9°C), January is the coldest month in Hanover, New Hampshire. When we took the average annual temperature of the ten most populous cities in each state and weighed them against each other, we found that the average annual temperature in New Hampshire is WARMER THAN—or within FIVE degrees of—a whopping 24 states! Even Pennsylvania! Yup, almost half! Get the latest coronavirus (COVID-19) updates for the USA with current travel advice, statistics and online resources.. Below are average maximum temperatures at popular destinations in New Hampshire in January. The moving average line for the 33 years and 11 years are both showing decreasing temperatures. What's The Average High Temp in New Hampshire? New Hampshire weather in January 2021. July is the hottest month for Belknap County with an average high temperature of 80.7°, which ranks it as cooler than most places in New Hampshire. Knapp State Airport is 45 miles from North Woodstock, so the actual climate in North Woodstock can vary a bit. Average Weather in January in Concord New Hampshire, United States Daily high temperatures are around 32°F, rarely falling below 18°F or exceeding 45°F . The state of New Hampshire to 2009 show the actual with trend lines dedicated to analysis. 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