30-year climate normals

Martin County Climate and Weather Averages

Hottest month — August

83.9°

average daily high. The coldest month is January, averaging a low of 22.9°F.

Martin County gets 48.63" of precipitation a year, and 32% of it falls in Apr, May, Jun.

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	39.0°	22.9°	3.75"
February	43.1°	26.0°	3.03"
March	53.8°	35.2°	4.20"
April	64.9°	45.0°	5.20"
May	73.1°	53.9°	5.48"
June	81.3°	62.7°	5.00"
July	83.5°	65.8°	4.18"
August	83.9°	64.0°	3.31"
September	77.1°	57.1°	3.27"
October	66.2°	45.9°	3.50"
November	53.0°	36.0°	3.88"
December	42.5°	28.2°	3.83"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 32% falling in the wettest three months (Apr, May, Jun).

January 3.75"

February 3.03"

March 4.20"

April 5.20"

May 5.48"

June 5.00"

July 4.18"

August 3.31"

September 3.27"

October 3.50"

November 3.88"

December 3.83"

Annual total 48.63"

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 1,043

Heating degree days How much heating the climate demands 4,897

Approximate annual cooling cost At 18.15¢/kWh, Indiana average $189

Approximate annual electric heating cost Lower where heating is gas rather than electric $311

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 Martin County, where electricity is one line of eight.

Common questions

What is the weather like in Martin County?

Martin County averages a high of 83.9°F in August and a low of 22.9°F in January. Annual precipitation is 48.63 inches, with essentially no snow.

When is the rainy season in Martin County?

The wettest stretch is Apr, May, Jun, which accounts for 32% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Martin County?

The average daily high in August, the hottest month, is 83.9°F. That drives 1,043 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Martin County?

Effectively no. Measurable snowfall is rare in Martin County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station BEDFORD 5 WNW, IN US (USW00063898), 17.7 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, Indiana residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.