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Operation Oswego County

44 West Bridge St.
Oswego, NY 13126
P: +1 315-343-1545

Total Area

Oswego County covers 953 square miles.

Rivers

Oswego River
Salmon River

Lakes

Lake Ontario
Oneida Lake (northern shore)
Lake Neatahwanta

Temperature

  Avg High (°F) Avg Low (°F) Mean (°F) Heat Deg Day Cool Deg Day
Jan 29.7 15.0 22.3 1322 0
Feb 32.3 16.2 24.3 1141 0
Mar 40.5 23.8 32.1 1018 0
Apr 54.4 34.8 44.6 614 2
May 66.2 44.3 55.3 316 14
Jun 75.1 53.6 64.4 95 75
Jul 79.4 58.9 69.1 18 146
Aug 78.1 57.6 67.8 31 119
Sep 69.9 50.4 60.2 175 30
Oct 57.9 40.5 49.2 492 2
Nov 47.0 32.0 39.5 765 0
Dec 34.5 21.7 28.1 1144 0

Temperature Extremes, Annual Number of Days

  Days
High > 90°F (Num. of Days) 3
Low < 32°F (Num. of Days) 140
Low < 0°F (Num. of Days) 7

Precipitation

  Precip Total " Snowfall Total " Days Precip ≥ 0.01" Days Precip ≥ 0.5" Days Snow Depth ≥ 10"
Jan 3.7 45.6 20.4 1.7 12.4
Feb 2.8 33.2 16.3 1.3 13.9
Mar 3.2 16.5 15.4 1.8 7.0
Apr 3.3 3.8 14.1 2.0 0.0
May 3.3 0.0 12.6 2.1 0.0
Jun 3.1 0.0 11.8 2.1 0.0
Jul 3.2 0.0 10.6 2.2 0.0
Aug 3.4 0.0 11.0 2.0 0.0
Sep 4.1 0.0 12.3 2.9 0.0
Oct 4.1 0.2 14.8 2.8 0.0
Nov 4.4 8.3 16.8 2.7 0.2
Dec 3.9 33.4 19.0 2.0 4.0