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United States › Florida › Clay County › Climate Station JACKSONVILLE NAS, FL US Distance 20.8 mi Normals 1991–2020

30-year climate normals

Clay County Climate and Weather Averages

Hottest month — July

91.8°

average daily high. The coldest month is January, averaging a low of 47.2°F.

Clay County gets 47.6" of precipitation a year, and 41% 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.

60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low Precip
January 65.5° 47.2° 2.93"
February 68.9° 50.2° 2.26"
March 74.3° 55.0° 3.14"
April 80.5° 61.1° 2.40"
May 86.2° 68.9° 3.16"
June 90.1° 73.9° 7.32"
July 91.8° 76.0° 6.00"
August 91.1° 76.3° 6.28"
September 87.8° 73.9° 6.08"
October 81.6° 66.0° 3.55"
November 73.3° 56.1° 2.03"
December 67.5° 50.4° 2.45"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 41% falling in the wettest three months (Jun, Jul, Aug).

January 2.93"
February 2.26"
March 3.14"
April 2.40"
May 3.16"
June 7.32"
July 6.00"
August 6.28"
September 6.08"
October 3.55"
November 2.03"
December 2.45"
Annual total 47.6"

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 3,302
Heating degree days How much heating the climate demands 944
Approximate annual cooling cost At 15.17¢/kWh, Florida average $501
Approximate annual electric heating cost Lower where heating is gas rather than electric $50

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 Clay County, where electricity is one line of eight.

Common questions

What is the weather like in Clay County?

Clay County averages a high of 91.8°F in July and a low of 47.2°F in January. Annual precipitation is 47.6 inches, with essentially no snow.

When is the rainy season in Clay County?

The wettest stretch is Jun, Jul, Aug, which accounts for 41% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Clay County?

The average daily high in July, the hottest month, is 91.8°F. That drives 3,302 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Clay County?

Effectively no. Measurable snowfall is rare in Clay County.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station JACKSONVILLE NAS, FL US (USW00093837), 20.8 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, Florida residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.