30-year climate normals

Hamilton County Climate and Weather Averages

Hottest month — July

90.2°

average daily high. The coldest month is January, averaging a low of 38.4°F.

Hamilton County gets 52.64" of precipitation a year, and 36% 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.

Month	Avg high	Avg low	Precip
January	63.0°	38.4°	4.60"
February	66.4°	41.3°	4.00"
March	72.2°	45.8°	4.58"
April	78.0°	52.2°	3.77"
May	84.5°	60.2°	3.17"
June	88.3°	67.7°	6.78"
July	90.2°	70.2°	5.88"
August	89.3°	70.1°	6.30"
September	86.6°	66.4°	4.94"
October	79.9°	56.4°	2.87"
November	71.5°	46.0°	2.38"
December	65.3°	41.0°	3.37"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 36% falling in the wettest three months (Jun, Jul, Aug).

January 4.60"

February 4.00"

March 4.58"

April 3.77"

May 3.17"

June 6.78"

July 5.88"

August 6.30"

September 4.94"

October 2.87"

November 2.38"

December 3.37"

Annual total 52.64"

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 2,216

Heating degree days How much heating the climate demands 1,722

Approximate annual cooling cost At 15.17¢/kWh, Florida average $336

Approximate annual electric heating cost Lower where heating is gas rather than electric $91

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 Hamilton County, where electricity is one line of eight.

Common questions

What is the weather like in Hamilton County?

Hamilton County averages a high of 90.2°F in July and a low of 38.4°F in January. Annual precipitation is 52.64 inches, with essentially no snow.

When is the rainy season in Hamilton County?

The wettest stretch is Jun, Jul, Aug, which accounts for 36% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Hamilton County?

The average daily high in July, the hottest month, is 90.2°F. That drives 2,216 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Hamilton County?

Effectively no. Measurable snowfall is rare in Hamilton County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station JASPER, FL US (USC00084394), 1.7 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, Florida residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.