30-year climate normals

Calaveras County Climate and Weather Averages

Hottest month — July

97.1°

average daily high. The coldest month is December, averaging a low of 37.8°F.

Calaveras County gets 29.75" of precipitation a year, and 53% of it falls in Dec, Jan, Feb.

Temperature through the year

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

Month	Avg high	Avg low	Precip
January	57.3°	38.2°	5.85"
February	60.6°	39.7°	4.85"
March	64.8°	43.5°	4.77"
April	70.0°	45.9°	2.58"
May	79.4°	52.4°	1.48"
June	89.3°	59.2°	0.36"
July	97.1°	65.4°	0.03"
August	96.2°	64.5°	0.04"
September	90.7°	60.2°	0.21"
October	79.7°	52.4°	1.51"
November	66.0°	44.1°	2.91"
December	57.4°	37.8°	5.16"

Rainfall by month

Calaveras County has a distinct wet season. 53% of the year's precipitation arrives in Dec, Jan, Feb.

January 5.85"

February 4.85"

March 4.77"

April 2.58"

May 1.48"

June 0.36"

July 0.03"

August 0.04"

September 0.21"

October 1.51"

November 2.91"

December 5.16"

Annual total 29.75"

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 1,842

Heating degree days How much heating the climate demands 2,547

Approximate annual cooling cost At 33.25¢/kWh, California average $612

Approximate annual electric heating cost Lower where heating is gas rather than electric $296

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 Calaveras County, where electricity is one line of eight.

Common questions

What is the weather like in Calaveras County?

Calaveras County averages a high of 97.1°F in July and a low of 37.8°F in December. Annual precipitation is 29.75 inches, with essentially no snow.

When is the rainy season in Calaveras County?

The wettest stretch is Dec, Jan, Feb, which accounts for 53% of the year's precipitation. That is a pronounced wet season rather than rain spread evenly through the year.

How hot does it get in Calaveras County?

The average daily high in July, the hottest month, is 97.1°F. That drives 1,842 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Calaveras County?

Effectively no. Measurable snowfall is rare in Calaveras County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station NEW MELONES DAM HQ, CA US (USC00046174), 13.4 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, California residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.