Manchester, NH

Climate overview — based on NOAA 1991-2020 normals from MASSABESIC LAKE, NH US.

Dfb Warm-summer humid continental climate 6b USDA hardiness Zone 6b

Year-round temperatures (°F)

10° 30° 50° 70° 90° J F M A M J J A S O N D
Avg high Avg low

Climate summary

Manchester has an annual average temperature of 47.4°F with about 42.5 inches of precipitation per year and 52.8 inches of snow. The warmest month is July (average high 81.1°F), and the coldest is January (average low 13.0°F). October is typically the wettest month (4.36 in) and January the driest (2.67 in). Snow typically falls from November through April.

Pleasant months
3 / 12
avg high 65–80°F, low ≥ 50°F
Annual swing
48.7°F
warmest to coldest month
Heating need
6,666
Cooling need
336

Best time to visit Manchester

Full guide →

Climate change signal

All-time records →

38 of 366 (10.4%) of Manchester's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.

1940s
59
1950s
47
1960s
29
1970s
38
1980s
39
1990s
36
2000s
54
2010s
39
2020s
25

Bars: number of all-time daily heat records still standing that were set in each decade.

Monthly averages

Month Avg High Avg Low Avg Temp Precipitation Snow Rainy days
January 31.7°F 13.0°F 22.3°F 2.67 in 15.9 in 9
February 34.8°F 15.0°F 24.9°F 2.70 in 17.6 in 7
March 42.9°F 23.6°F 33.2°F 3.19 in 6.7 in 8
April 56.1°F 34.9°F 45.5°F 3.49 in 0.9 in 10
May 67.1°F 45.9°F 56.5°F 3.37 in 11
June 76.0°F 55.6°F 65.8°F 4.27 in 11
July 81.1°F 60.9°F 71.0°F 3.65 in 10
August 79.8°F 59.1°F 69.4°F 3.68 in 9
September 72.9°F 51.7°F 62.3°F 3.87 in 9
October 59.7°F 39.5°F 49.6°F 4.36 in 10
November 48.3°F 30.4°F 39.4°F 3.49 in 1.1 in 9
December 37.5°F 20.8°F 29.1°F 3.77 in 10.6 in 9

Climate twins of Manchester

Why these? →

The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).

Frost dates
Last spring / first fall frost
All-time records
Hottest, coldest, wettest
Planting calendar
What to plant, and when

Compare Manchester to another city