Climate & Weather in Derry
Derry has a real, genuine four-season New England climate with mild-to-warm summers (July highs cited around 81.7°F) and cold, snowy winters (January highs around 30.6°F, roughly 50 inches of annual snowfall) -- genuinely above-average snowfall for a southern New Hampshire town.
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Learn moreMild-to-Warm Summers
July, Derry's warmest month, is cited with an average high around 81.7°F -- genuinely mild-to-warm rather than hot, consistent with a New England summer rather than a humid subtropical climate.
Cold, Genuinely Snowy Winters
January, the coldest month, is cited with an average high around 30.6°F, with daily winter highs ranging from approximately 43°F down to 39°F across the season and overcast or mostly cloudy conditions cited approximately 53% of the time. Annual snowfall is cited at approximately 50 inches, genuinely above the U.S. national average, with snowfall occurring from November through April and a cited December maximum of approximately 2.99 inches on a typical snow day.
Annual Precipitation and Four Distinct Seasons
Derry receives approximately 43 inches of annual precipitation, and experiences four genuinely distinct seasons, with temperatures over the course of the year typically ranging from approximately 17°F to 83°F and rarely dropping below 2°F or exceeding 91°F.
Key takeaways
- Derry's July average high runs around 81.7°F -- mild-to-warm rather than hot.
- Derry's January average high runs around 30.6°F, with approximately 50 inches of annual snowfall -- genuinely above the U.S. national average.
- Annual precipitation runs approximately 43 inches, with four genuinely distinct seasons and a typical annual temperature range of roughly 17°F to 83°F.
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