30-year climate normals

Red Willow County Climate and Weather Averages

Hottest month — July

91.2°

average daily high. The coldest month is January, averaging a low of 16.1°F.

Red Willow County gets 20.05" of precipitation a year, and 48% 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	41.2°	16.1°	0.26"
February	44.6°	18.5°	0.35"
March	56.3°	27.3°	0.90"
April	64.9°	36.3°	1.81"
May	74.8°	47.5°	3.08"
June	86.0°	58.4°	3.09"
July	91.2°	64.0°	3.32"
August	88.6°	61.7°	3.13"
September	81.4°	51.5°	1.63"
October	67.5°	37.7°	1.43"
November	53.4°	25.2°	0.61"
December	42.3°	17.0°	0.44"

Rainfall by month

Red Willow County has a distinct wet season. 48% of the year's precipitation arrives in Jun, Jul, Aug.

January 0.26"

February 0.35"

March 0.90"

April 1.81"

May 3.08"

June 3.09"

July 3.32"

August 3.13"

September 1.63"

October 1.43"

November 0.61"

December 0.44"

Annual total 20.05"

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 1,155

Heating degree days How much heating the climate demands 5,776

Approximate annual cooling cost At 13.59¢/kWh, Nebraska average $157

Approximate annual electric heating cost Lower where heating is gas rather than electric $275

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 Red Willow County, where electricity is one line of eight.

Common questions

What is the weather like in Red Willow County?

Red Willow County averages a high of 91.2°F in July and a low of 16.1°F in January. Annual precipitation is 20.05 inches, with essentially no snow.

When is the rainy season in Red Willow County?

The wettest stretch is Jun, Jul, Aug, which accounts for 48% 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 Red Willow County?

The average daily high in July, the hottest month, is 91.2°F. That drives 1,155 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Red Willow County?

Effectively no. Measurable snowfall is rare in Red Willow County.

Sources

Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station MCCOOK MUNI AP, NE US (USW00094040), 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, Nebraska residential average.
Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.