Derry, NH Weather
Derry, NH climate is mild during summer when temperatures tend to be in the 60's and very cold during winter when temperatures tend to be in the 20's.
The warmest month of the year is July with an average maximum temperature of 82.10 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 5.20 degrees Fahrenheit.
Temperature variations between night and day tend to be moderate during summer with a difference that can reach 27 degrees Fahrenheit, and moderate during winter with an average difference of 27 degrees Fahrenheit.
The annual average precipitation at Derry is 39.82 Inches. Rainfall in is fairly evenly distributed throughout the year. The wettest month of the year is October with an average rainfall of 3.74 Inches.
Weather Data
Current Conditions
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Overcast, 45°F | Humidity: 80% | Dewpoint: 39°F |
| Wind Speed: N 5.8 MPH (5 KT) | Heat Index: 45°F | ||
| Barometer: 30.13 in. | Wind Chill: 42°F |
Weather Forecast
| Tonight: Cloudy with a slight chance of rain showers or drizzle this evening. Patchy drizzle after midnight. Patchy fog after midnight. Lows in the mid 30s. North winds around 10 mph this evening... Becoming light and variable. Chance of rain 20 percent. | ||
| Lo: 35°F | ||
| Hi: 51°F | Wednesday: Cloudy. Highs in the lower 50s. Light and variable winds. | |
| Lo: 39°F | ||
| Hi: 55°F | Thanksgiving day: Partly sunny in the morning...Then becoming mostly cloudy. Highs in the mid 50s. Light and variable winds. | |
| Lo: 41°F | ||
| Hi: 45°F | Friday: Rain likely. Highs in the mid 40s. Chance of rain 70 percent. | |
| Lo: 35°F | ||
| Hi: 45°F | Saturday: Mostly cloudy in the morning...Then becoming partly sunny. A 40 percent chance of rain showers. Highs in the mid 40s. | |
| Lo: 29°F | ||
| Hi: 49°F | Sunday: Mostly sunny. Highs in the upper 40s. | |
| Lo: 29°F | ||
| Hi: 49°F | Monday: Mostly cloudy with a 30 percent chance of rain showers. Highs in the upper 40s. | |
| Lo: 31°F |
Moon, Sunrise and Sunset
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Moon Phase: Waxing Gibbous Moon | Civil Twilight: 6:16 AM EST |
Sunrise: 6:47 AM EST |
| Sunset: 4:15 PM EST |
Civil Twilight: 4:46 PM EST |
Normal Climate
Normal Temperatures
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Max °F | 32.3 | 35.6 | 44.3 | 56.0 | 68.3 | 77.4 | 82.1 | 80.2 | 72.2 | 60.9 | 49.6 | 37.4 | 58.0 |
| Mean °F | 18.8 | 21.9 | 31.4 | 42.5 | 54.3 | 63.5 | 68.4 | 66.5 | 57.9 | 46.4 | 36.6 | 24.9 | 44.4 |
| Min °F | 5.2 | 8.2 | 18.4 | 29.0 | 40.2 | 49.5 | 54.6 | 52.8 | 43.5 | 31.8 | 23.6 | 12.3 | 30.8 |
Normal Precipitation
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inch | 3.07 | 2.27 | 2.95 | 3.32 | 3.51 | 3.57 | 3.58 | 3.59 | 3.28 | 3.74 | 3.66 | 3.28 | 39.82 |

