30-year climate normals

Graham County Climate and Weather Averages

Hottest month — June

100.9°

average daily high. The coldest month is December, averaging a low of 33.6°F.

Graham County gets 7.98" of precipitation a year, and 44% of it falls in Jul, Aug, Sep.

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	60.5°	33.8°	0.71"
February	65.8°	36.6°	0.62"
March	73.3°	41.9°	0.47"
April	81.7°	47.8°	0.19"
May	91.1°	56.1°	0.17"
June	100.9°	65.8°	0.24"
July	100.1°	71.8°	1.33"
August	97.9°	71.3°	1.28"
September	92.8°	64.9°	0.88"
October	82.8°	52.2°	0.72"
November	70.1°	41.1°	0.52"
December	59.7°	33.6°	0.85"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 44% falling in the wettest three months (Jul, Aug, Sep).

January 0.71"

February 0.62"

March 0.47"

April 0.19"

May 0.17"

June 0.24"

July 1.33"

August 1.28"

September 0.88"

October 0.72"

November 0.52"

December 0.85"

Annual total 7.98"

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 2,715

Heating degree days How much heating the climate demands 2,175

Approximate annual cooling cost At 15.23¢/kWh, Arizona average $413

Approximate annual electric heating cost Lower where heating is gas rather than electric $116

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 Graham County, where electricity is one line of eight.

Common questions

What is the weather like in Graham County?

Graham County averages a high of 100.9°F in June and a low of 33.6°F in December. Annual precipitation is 7.98 inches, with essentially no snow.

When is the rainy season in Graham County?

The wettest stretch is Jul, Aug, Sep, which accounts for 44% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Graham County?

The average daily high in June, the hottest month, is 100.9°F. That drives 2,715 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Graham County?

Effectively no. Measurable snowfall is rare in Graham County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SAFFORD MUNI AP, AZ US (USW00093084), 15.1 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, Arizona residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.