Cost to Own
United States › Pennsylvania › Mifflin County › Climate Station LEWISTOWN, PA US Distance 4.5 mi Normals 1991–2020

30-year climate normals

Mifflin County Climate and Weather Averages

Hottest month — July

85.3°

average daily high. The coldest month is January, averaging a low of 21.0°F.

Mifflin County gets 42.14" of precipitation a year and 26.2" of snow, and 28% of it falls in Aug, Sep, Oct.

Temperature through the year

Each bar spans the average daily low to the average daily high for that month.

40° 60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low PrecipSnow
January 37.0° 21.0° 2.89" 9.1"
February 40.4° 22.3° 2.31" 6.9"
March 49.4° 29.2° 3.57" 4.3"
April 62.6° 39.0° 3.53" 0.2"
May 72.8° 49.1° 4.16" 0.0"
June 80.7° 58.3° 3.95" 0.0"
July 85.3° 62.6° 3.64" 0.0"
August 83.6° 61.1° 3.61" 0.0"
September 76.8° 53.8° 4.40" 0.0"
October 65.0° 42.5° 3.75" 0.1"
November 52.6° 33.0° 3.06" 0.9"
December 41.4° 26.3° 3.27" 4.7"

Rainfall by month

Precipitation is spread fairly evenly through the year here, with 28% falling in the wettest three months (Aug, Sep, Oct).

January 2.89"
February 2.31"
March 3.57"
April 3.53"
May 4.16"
June 3.95"
July 3.64"
August 3.61"
September 4.40"
October 3.75"
November 3.06"
December 3.27"
Annual total 42.14"

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 832
Heating degree days How much heating the climate demands 5,570
Approximate annual cooling cost At 21.55¢/kWh, Pennsylvania average $179
Approximate annual electric heating cost Lower where heating is gas rather than electric $420

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 Mifflin County, where electricity is one line of eight.

Common questions

What is the weather like in Mifflin County?

Mifflin County averages a high of 85.3°F in July and a low of 21.0°F in January. Annual precipitation is 42.14 inches, including 26.2 inches of snow.

When is the rainy season in Mifflin County?

The wettest stretch is Aug, Sep, Oct, which accounts for 28% of the year's precipitation. Precipitation is relatively evenly distributed across the year.

How hot does it get in Mifflin County?

The average daily high in July, the hottest month, is 85.3°F. That drives 832 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Mifflin County?

Yes. Mifflin County averages 26.2 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station LEWISTOWN, PA US (USC00364992), 4.5 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, Pennsylvania residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.