30-year climate normals

Todd County Climate and Weather Averages

Hottest month — July

87.4°

average daily high. The coldest month is January, averaging a low of 11.6°F.

Todd County gets 20.92" of precipitation a year and 41.5" of snow, and 46% of it falls in May, Jun, Jul.

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	Snow
January	34.2°	11.6°	0.48"	7.2"
February	37.5°	13.9°	0.67"	7.5"
March	47.8°	22.8°	1.12"	7.1"
April	57.4°	32.3°	2.50"	5.7"
May	68.4°	44.0°	3.38"	0.1"
June	79.4°	54.8°	3.68"	0.0"
July	87.4°	60.9°	2.61"	0.0"
August	85.8°	58.5°	1.80"	0.0"
September	77.1°	48.4°	1.75"	0.0"
October	61.6°	34.9°	1.69"	1.2"
November	47.7°	23.3°	0.68"	6.1"
December	37.0°	14.2°	0.56"	6.6"

Rainfall by month

Todd County has a distinct wet season. 46% of the year's precipitation arrives in May, Jun, Jul.

January 0.48"

February 0.67"

March 1.12"

April 2.50"

May 3.38"

June 3.68"

July 2.61"

August 1.80"

September 1.75"

October 1.69"

November 0.68"

December 0.56"

Annual total 20.92"

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 779

Heating degree days How much heating the climate demands 7,107

Approximate annual cooling cost At 15.73¢/kWh, South Dakota average $123

Approximate annual electric heating cost Lower where heating is gas rather than electric $391

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 Todd County, where electricity is one line of eight.

Common questions

What is the weather like in Todd County?

Todd County averages a high of 87.4°F in July and a low of 11.6°F in January. Annual precipitation is 20.92 inches, including 41.5 inches of snow.

When is the rainy season in Todd County?

The wettest stretch is May, Jun, Jul, which accounts for 46% of the year's precipitation. That is a pronounced wet season rather than rain spread evenly through the year.

How hot does it get in Todd County?

The average daily high in July, the hottest month, is 87.4°F. That drives 779 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Todd County?

Yes. Todd County averages 41.5 inches of snow a year.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station MISSION, SD US (USC00395620), 7.2 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, South Dakota residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.