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United States › New York › Onondaga County › Climate Station SYRACUSE HANCOCK INTL AP, NY US Distance 8.6 mi Normals 1991–2020

30-year climate normals

Onondaga County Climate and Weather Averages

Hottest month — July

81.7°

average daily high. The coldest month is January, averaging a low of 16.5°F.

Onondaga County gets 39.88" of precipitation a year and 127.8" of snow, and 28% 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.

20° 40° 60° 80° JanFebMarAprMayJunJulAugSepOctNovDec
MonthAvg highAvg low PrecipSnow
January 31.7° 16.5° 2.58" 34.0"
February 33.6° 17.5° 2.46" 30.3"
March 42.4° 25.2° 3.04" 19.8"
April 56.4° 36.2° 3.48" 3.0"
May 69.2° 47.3° 3.42" 0.1"
June 77.3° 56.7° 3.56" 0.0"
July 81.7° 62.0° 3.86" 0.0"
August 80.3° 60.4° 3.70" 0.0"
September 73.1° 52.7° 3.38" 0.0"
October 60.1° 42.4° 3.89" 0.2"
November 48.3° 32.7° 3.23" 9.8"
December 37.1° 23.7° 3.28" 30.6"

Rainfall by month

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

January 2.58"
February 2.46"
March 3.04"
April 3.48"
May 3.42"
June 3.56"
July 3.86"
August 3.70"
September 3.38"
October 3.89"
November 3.23"
December 3.28"
Annual total 39.88"

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 619
Heating degree days How much heating the climate demands 6,588
Approximate annual cooling cost At 29.93¢/kWh, New York average $185
Approximate annual electric heating cost Lower where heating is gas rather than electric $690

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 Onondaga County, where electricity is one line of eight.

Common questions

What is the weather like in Onondaga County?

Onondaga County averages a high of 81.7°F in July and a low of 16.5°F in January. Annual precipitation is 39.88 inches, including 127.8 inches of snow.

When is the rainy season in Onondaga County?

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

How hot does it get in Onondaga County?

The average daily high in July, the hottest month, is 81.7°F. That drives 619 cooling degree days a year, which is what your air conditioning has to work against.

Does it snow in Onondaga County?

Yes. Onondaga County averages 127.8 inches of snow a year.

Sources

  • Temperature, precipitation and snowfall normals — NOAA National Centers for Environmental Information, 1991–2020 Monthly Climate Normals, station SYRACUSE HANCOCK INTL AP, NY US (USW00014771), 8.6 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, New York residential average.
  • Wet-season share is the wettest three consecutive months as a percentage of annual precipitation, calculated from the monthly normals.