30-year climate normals

Montrose County Climate and Weather Averages

Hottest month — July

90.0°

average daily high. The coldest month is January, averaging a low of 15.8°F.

Montrose County gets 8.28" of precipitation a year, and 37% 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.

Month	Avg high	Avg low	Precip
January	38.5°	15.8°	0.41"
February	45.3°	22.2°	0.42"
March	55.4°	28.7°	0.62"
April	63.2°	35.1°	0.78"
May	73.7°	43.4°	0.82"
June	85.5°	51.9°	0.36"
July	90.0°	58.0°	0.80"
August	86.7°	56.1°	0.90"
September	78.6°	47.9°	1.17"
October	65.2°	36.2°	0.98"
November	50.9°	25.3°	0.56"
December	38.6°	16.1°	0.46"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 37% falling in the wettest three months (Aug, Sep, Oct).

January 0.41"

February 0.42"

March 0.62"

April 0.78"

May 0.82"

June 0.36"

July 0.80"

August 0.90"

September 1.17"

October 0.98"

November 0.56"

December 0.46"

Annual total 8.28"

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 700

Heating degree days How much heating the climate demands 6,017

Approximate annual cooling cost At 16.16¢/kWh, Colorado average $113

Approximate annual electric heating cost Lower where heating is gas rather than electric $340

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 Montrose County, where electricity is one line of eight.

Common questions

What is the weather like in Montrose County?

Montrose County averages a high of 90.0°F in July and a low of 15.8°F in January. Annual precipitation is 8.28 inches, with essentially no snow.

When is the rainy season in Montrose County?

The wettest stretch is Aug, Sep, Oct, which accounts for 37% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Montrose County?

The average daily high in July, the hottest month, is 90.0°F. That drives 700 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Montrose County?

Effectively no. Measurable snowfall is rare in Montrose County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station MONTROSE RGNL AP, CO US (USW00093013), 21.1 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, Colorado residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.