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United States › Vermont › Caledonia County › Climate Station SAINT JOHNSBURY, VT US Distance 5.7 mi Normals 1991–2020

30-year climate normals

Caledonia County Climate and Weather Averages

Hottest month — July

79.5°

average daily high. The coldest month is January, averaging a low of 7.8°F.

Caledonia County gets 39.34" of precipitation a year, and 31% 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 26.4° 7.8° 2.52"
February 30.1° 8.6° 2.16"
March 39.3° 19.1° 2.42"
April 53.3° 31.6° 3.26"
May 67.1° 43.0° 3.74"
June 75.2° 52.6° 3.81"
July 79.5° 57.6° 4.43"
August 77.6° 55.5° 3.83"
September 69.7° 47.9° 3.32"
October 56.5° 36.9° 3.87"
November 43.3° 27.4° 3.05"
December 31.5° 16.1° 2.93"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 31% falling in the wettest three months (Jun, Jul, Aug).

January 2.52"
February 2.16"
March 2.42"
April 3.26"
May 3.74"
June 3.81"
July 4.43"
August 3.83"
September 3.32"
October 3.87"
November 3.05"
December 2.93"
Annual total 39.34"

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 330
Heating degree days How much heating the climate demands 7,982
Approximate annual cooling cost At 24.89¢/kWh, Vermont average $82
Approximate annual electric heating cost Lower where heating is gas rather than electric $695

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 Caledonia County, where electricity is one line of eight.

Common questions

What is the weather like in Caledonia County?

Caledonia County averages a high of 79.5°F in July and a low of 7.8°F in January. Annual precipitation is 39.34 inches, with essentially no snow.

When is the rainy season in Caledonia County?

The wettest stretch is Jun, Jul, Aug, which accounts for 31% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Caledonia County?

The average daily high in July, the hottest month, is 79.5°F. That drives 330 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Caledonia County?

Effectively no. Measurable snowfall is rare in Caledonia County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SAINT JOHNSBURY, VT US (USW00054742), 5.7 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, Vermont residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.