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United States › Arizona › La Paz County › Climate Station QUARTZSITE, AZ US Distance 11.7 mi Normals 1991–2020

30-year climate normals

La Paz County Climate and Weather Averages

Hottest month — July

108.7°

average daily high. The coldest month is December, averaging a low of 38.8°F.

La Paz County gets 4.58" of precipitation a year, and 41% 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.

40° 60° 80° 100° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 66.6° 40.2° 0.66"
February 71.2° 44.3° 0.65"
March 78.9° 50.5° 0.45"
April 86.6° 56.8° 0.13"
May 95.3° 65.9° 0.13"
June 105.0° 75.1° 0.05"
July 108.7° 82.3° 0.47"
August 107.9° 81.7° 0.51"
September 101.8° 73.9° 0.46"
October 89.5° 59.7° 0.23"
November 75.7° 46.8° 0.28"
December 64.9° 38.8° 0.56"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 41% falling in the wettest three months (Dec, Jan, Feb).

January 0.66"
February 0.65"
March 0.45"
April 0.13"
May 0.13"
June 0.05"
July 0.47"
August 0.51"
September 0.46"
October 0.23"
November 0.28"
December 0.56"
Annual total 4.58"

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 4,453
Heating degree days How much heating the climate demands 1,256
Approximate annual cooling cost At 15.23¢/kWh, Arizona average $678
Approximate annual electric heating cost Lower where heating is gas rather than electric $67

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 La Paz County, where electricity is one line of eight.

Common questions

What is the weather like in La Paz County?

La Paz County averages a high of 108.7°F in July and a low of 38.8°F in December. Annual precipitation is 4.58 inches, with essentially no snow.

When is the rainy season in La Paz County?

The wettest stretch is Dec, Jan, Feb, which accounts for 41% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in La Paz County?

The average daily high in July, the hottest month, is 108.7°F. That drives 4,453 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in La Paz County?

Effectively no. Measurable snowfall is rare in La Paz County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station QUARTZSITE, AZ US (USC00026865), 11.7 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, Arizona residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.