Climateby Month

Manchester, NH climate by month

NOAA 1991-2020 normals · 254 ft elevation

Manchester has warm summers and cold and snowy winters. Highs peak at 81°F in July and fall to 32°F in January. Wet days are spread through the year, from about 9 to 13 a month. Normal snowfall is about 68 in a year. By our comfort score the best month is May.

Warmest month
81°F
July normal high
Coldest month
13°F
January normal low
Wet days a year
133
42.0 in of precipitation
Snow a year
67.7 in
normal snowfall

How warm is Manchester?

Normal highs range from 32°F in January to 81°F in July.

0°20°40°60°80°100° January: normal high 32°F (0°C), low 13°F (-11°C) 32° 13° February: normal high 35°F (2°C), low 15°F (-9°C) March: normal high 43°F (6°C), low 24°F (-4°C) April: normal high 56°F (13°C), low 35°F (2°C) May: normal high 67°F (19°C), low 46°F (8°C) June: normal high 76°F (24°C), low 56°F (13°C) July: normal high 81°F (27°C), low 61°F (16°C) 81° 61° August: normal high 80°F (27°C), low 59°F (15°C) September: normal high 73°F (23°C), low 52°F (11°C) October: normal high 60°F (16°C), low 40°F (4°C) November: normal high 48°F (9°C), low 30°F (-1°C) December: normal high 38°F (3°C), low 21°F (-6°C) JFMAMJJASOND

Bars run from the normal low to the normal high for each month.

How rainy is Manchester?

June has the most wet days (about 13); the year brings about 42 in of precipitation.

January: 11 wet days February: 10 wet days March: 12 wet days April: 11 wet days May: 12 wet days June: 13 wet days 13 July: 11 wet days August: 10 wet days September: 9 wet days 9 October: 11 wet days November: 11 wet days December: 12 wet days JFMAMJJASOND

Wet day: at least 0.01 in of rain or melted snow, counted from daily records 1991-2020.

How much does it snow?

Normal snowfall is 67.7 in a year, most of it in January.

January: 17.1 in of snow 17.1 February: 16.9 in of snow March: 13.6 in of snow April: 2.5 in of snow May: 0.0 in of snow 0.0 June: 0.0 in of snow July: 0.0 in of snow August: 0.0 in of snow September: 0.0 in of snow October: 0.8 in of snow November: 2.5 in of snow December: 14.3 in of snow JFMAMJJASOND

How humid is Manchester?

Muggy days peak in July, at about 9 days.

January: 0 muggy days 0 February: 0 muggy days March: 0 muggy days April: 0 muggy days May: 0 muggy days June: 3 muggy days July: 9 muggy days 9 August: 7 muggy days September: 3 muggy days October: 0 muggy days November: 0 muggy days December: 0 muggy days JFMAMJJASOND

Muggy day: daily mean dew point of 65°F or higher, from hourly observations 1991-2020 at Manchester Airport, 4.6 mi SSE of the city center.

How much daylight?

Daylight ranges from about 9.1 hours in December to 15.3 hours in June.

January: 9.4 hours of daylight February: 10.5 hours of daylight March: 11.9 hours of daylight April: 13.4 hours of daylight May: 14.7 hours of daylight June: 15.3 hours of daylight 15.3 July: 15.0 hours of daylight August: 13.9 hours of daylight September: 12.5 hours of daylight October: 11.0 hours of daylight November: 9.7 hours of daylight December: 9.1 hours of daylight 9.1 JFMAMJJASOND
See all numbers
Monthly climate normals and day counts for Manchester, 1991-2020
MonthHighLowPrecip.Wet daysSnowMuggy daysDaylight
January 32°F13°F 2.8 in11 17.1 in 0 9.4 h
February 35°F15°F 2.8 in10 16.9 in 0 10.5 h
March 43°F24°F 3.3 in12 13.6 in 0 11.9 h
April 56°F35°F 3.4 in11 2.5 in 0 13.4 h
May 67°F46°F 3.5 in12 0.0 in 0 14.7 h
June 76°F56°F 3.8 in13 0.0 in 3 15.3 h
July 81°F61°F 3.6 in11 0.0 in 9 15.0 h
August 80°F59°F 3.6 in10 0.0 in 7 13.9 h
September 73°F52°F 3.6 in9 0.0 in 3 12.5 h
October 60°F40°F 4.4 in11 0.8 in 0 11.0 h
November 48°F30°F 3.4 in11 2.5 in 0 9.7 h
December 38°F21°F 3.7 in12 14.3 in 0 9.1 h

High and low: NOAA 1991-2020 normal daily high and low. Wet days: at least 0.01 in of rain or melted snow. Muggy days: daily mean dew point 65°F or higher.

Best months to visit Manchester

By our comfort score, the best month is May.

Comfort score by month (0-100) and its parts, in days per month
MonthScoreComfortableNotable rainHot or cold
Jan 250624
Feb 300620
Mar 411712
Apr 57672
May 731671
Jun 691372
Jul 60664
Aug 62962
Sep 691661
Oct 56970
Nov 41265
Dec 280719

Score = 40 × share of comfortable days + 25 × share of days without notable rain + 20 × share of days neither hot (90°F+) nor cold (high 40°F or below) + 15 × daylight. How the score works.

Frost dates in Manchester

The last spring frost typically comes around Apr 30, and the first fall frost around Oct 11, leaving 164 frost-free days in a typical year.

Frost and freeze dates for Manchester
Typical date1 year in 10
Last spring frost (32°F)Apr 30after May 14
First fall frost (32°F)Oct 11before Sep 30
Last hard freeze (28°F)Apr 17after May 2
First hard freeze (28°F)Oct 24before Oct 8
Frost-free season164 daysunder 146 days

"Typical" is the date with a 50% chance of a later spring frost (or earlier fall frost). Planting after the "1 year in 10" spring date gives a 90% chance of no further frost. The Old Farmer's Almanac publishes 30% dates, which fall between our typical and 1-in-10 dates.

Station: Massabesic Lake (USC00275211), NOAA 1991-2020 freeze probabilities. Frost dates for every city in New Hampshire.

Hottest and coldest readings, 1991-2020

The highest reading was 99°F (July 20, 1991); the lowest was -20°F (January 31, 1999).

From the temperature station's daily records with NOAA quality flags removed. Not an all-time record.

Near Manchester

Similar climates elsewhere

Where the numbers come from

  • Temperature and frost dates: Massabesic Lake (USC00275211), 3.1 mi E of the city center, 253 ft . NOAA normals and daily records, 1991-2020.
  • Rain, snowfall, snow depth and cloud cover: Concord Muni Airport (USW00014745), 14 mi N of the city center, 346 ft (92 ft higher than the city). NOAA normals and daily records, 1991-2020.
  • Humidity and wind by hour: Manchester Airport (USW00014710), 4.4 mi S of the city center, 225 ft . NOAA normals and daily records, 1991-2020.
  • Daily humidity and wind: Manchester Airport (743945-14710), 4.6 mi SSE of the city center, 229 ft . Hourly observations, 1991-2020.

Distances from the city center (USGS). Methodology · Report an error