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United States › Connecticut › Northwest Hills Planning Region › Climate Station NORFOLK 2 SW, CT US Distance 8.1 mi Normals 1991–2020

30-year climate normals

Northwest Hills Planning Region Climate and Weather Averages

Hottest month — July

78.4°

average daily high. The coldest month is January, averaging a low of 14.1°F.

Northwest Hills Planning Region gets 52.94" of precipitation a year and 74.9" of snow, and 28% of it falls in Aug, Sep, Oct.

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 PrecipSnow
January 29.8° 14.1° 3.97" 17.8"
February 32.3° 15.4° 3.33" 17.5"
March 40.4° 22.8° 4.21" 14.9"
April 54.0° 34.0° 3.93" 3.9"
May 65.3° 45.4° 4.13" 0.0"
June 73.4° 54.5° 4.96" 0.0"
July 78.4° 59.5° 4.77" 0.0"
August 76.4° 58.1° 4.67" 0.0"
September 69.0° 50.9° 4.90" 0.0"
October 56.5° 39.7° 5.14" 1.4"
November 44.9° 30.2° 4.07" 4.4"
December 34.6° 21.1° 4.86" 15.0"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 28% falling in the wettest three months (Aug, Sep, Oct).

January 3.97"
February 3.33"
March 4.21"
April 3.93"
May 4.13"
June 4.96"
July 4.77"
August 4.67"
September 4.90"
October 5.14"
November 4.07"
December 4.86"
Annual total 52.94"

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 370
Heating degree days How much heating the climate demands 7,311
Approximate annual cooling cost At 27.37¢/kWh, Connecticut average $101
Approximate annual electric heating cost Lower where heating is gas rather than electric $700

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 Northwest Hills Planning Region, where electricity is one line of eight.

Common questions

What is the weather like in Northwest Hills Planning Region?

Northwest Hills Planning Region averages a high of 78.4°F in July and a low of 14.1°F in January. Annual precipitation is 52.94 inches, including 74.9 inches of snow.

When is the rainy season in Northwest Hills Planning Region?

The wettest stretch is Aug, Sep, Oct, which accounts for 28% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Northwest Hills Planning Region?

The average daily high in July, the hottest month, is 78.4°F. That drives 370 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Northwest Hills Planning Region?

Yes. Northwest Hills Planning Region averages 74.9 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station NORFOLK 2 SW, CT US (USC00065445), 8.1 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, Connecticut residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.