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United States › New Hampshire › Coos County › Climate Station BERLIN MUNI AP, NH US Distance 7.6 mi Normals 1991–2020

30-year climate normals

Coos County Climate and Weather Averages

Hottest month — July

79.8°

average daily high. The coldest month is January, averaging a low of 2.5°F.

Coos County gets 36.47" of precipitation a year, and 34% of it falls in Jun, Jul, Aug.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

20° 40° 60° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 27.0° 2.5° 2.00"
February 30.2° 3.0° 1.66"
March 38.9° 14.0° 2.07"
April 52.6° 27.0° 3.07"
May 66.6° 37.1° 3.48"
June 75.1° 46.9° 4.26"
July 79.8° 51.8° 4.04"
August 78.2° 50.1° 3.94"
September 70.9° 42.4° 3.12"
October 57.4° 32.0° 3.74"
November 44.0° 22.7° 2.78"
December 32.2° 11.5° 2.31"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 34% falling in the wettest three months (Jun, Jul, Aug).

January 2.00"
February 1.66"
March 2.07"
April 3.07"
May 3.48"
June 4.26"
July 4.04"
August 3.94"
September 3.12"
October 3.74"
November 2.78"
December 2.31"
Annual total 36.47"

What this climate costs you

Degree days measure how hard a building has to work to stay comfortable. They are the reason two identical houses have very different power bills, and they are the link between the weather here and what you pay every month.

Cooling degree days How much air conditioning the climate demands 195
Heating degree days How much heating the climate demands 8,755
Approximate annual cooling cost At 27.33¢/kWh, New Hampshire average $53
Approximate annual electric heating cost Lower where heating is gas rather than electric $837

These are rough planning figures from degree days and the state electricity price, not a bill estimate. House size, insulation and fuel type move them a lot. See the full cost of owning a home in Coos County, where electricity is one line of eight.

Common questions

What is the weather like in Coos County?

Coos County averages a high of 79.8°F in July and a low of 2.5°F in January. Annual precipitation is 36.47 inches, with essentially no snow.

When is the rainy season in Coos County?

The wettest stretch is Jun, Jul, Aug, which accounts for 34% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Coos County?

The average daily high in July, the hottest month, is 79.8°F. That drives 195 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Coos County?

Effectively no. Measurable snowfall is rare in Coos County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station BERLIN MUNI AP, NH US (USW00094700), 7.6 miles from the county centroid.
  • Heating and cooling degree days — NOAA, same station and period.
  • Electricity price — US Energy Information Administration, Electric Power Monthly Table 5.6.A, New Hampshire residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.