| Month | Average (°F) | Record (°F) | Average (inches) | |||
|---|---|---|---|---|---|---|
| High ☀️ | Low 🌙 | High ☀️ | Low 🌙 | Precipitation 💧 | Snow ❄️ | |
| January | 31.2 | 18.6 | 69 | -21 | 3.7 | 43.7 |
| February | 33.4 | 20.0 | 70 | -21 | 2.8 | 34.6 |
| March | 41.1 | 27.1 | 83 | -9 | 3.0 | 16.4 |
| April | 53.5 | 37.3 | 90 | 13 | 3.5 | 2.7 |
| May | 66.0 | 47.8 | 91 | 28 | 3.3 | 0.0 |
| June | 75.0 | 57.2 | 96 | 36 | 3.4 | 0.0 |
| July | 79.9 | 63.2 | 95 | 44 | 3.4 | 0.0 |
| August | 78.8 | 62.1 | 97 | 42 | 3.5 | 0.0 |
| September | 71.9 | 55.1 | 96 | 30 | 3.9 | 0.0 |
| October | 59.4 | 44.9 | 86 | 21 | 4.6 | 0.2 |
| November | 47.7 | 35.5 | 78 | 4 | 4.1 | 9.2 |
| December | 36.9 | 26.0 | 69 | -23 | 3.9 | 29.7 |
| Entire year | 56.4 | 41.3 | 97 | -23 | 43.2 | 136.4 |
|
More Oswego Weather Records
1926–2024
|
||
|---|---|---|
| Highest daily low | 80 °F | August 2, 2006 |
| Lowest daily high | -5 °F | December 20, 1942 |
| Greatest daily range (Difference of high and low) |
46 °F | January 21, 1951 |
| Greatest difference in daily high over two conscutive days |
43 °F | Jan 21–22, 1951 |
| Most daily precipitation | 3.8 inches | July 3, 1974 |
| Most monthly precipitation | 10.1 inches | October 1955 |
| Most yearly precipitation | 56.0 inches | 2008 |
| Most yearly days with precipitation | 204 | 1996 |
| Earliest snow in season | October 2 | 1974 |
| Latest snow in season | May 17 | 1973 |
| Most daily snow | 40.0 inches | December 8, 1958 |
| Most monthly snow | 120.3 inches | January 1978 |
| Most yearly snow | 269.4 inches | 1972 |
| Most snow in a winter | 251.4 inches | 1971–1972 |
| Greatest snow accumulation | 78.0 inches | February 5, 1966 |
| Earliest freeze | September 24 | 1963 |
| Earliest day ≥ 70 °F | February 27 | 2024 |
| Earliest day ≥ 80 °F | March 22 | 1938 |
| Earliest day ≥ 90 °F | April 28 | 1990 |
| Latest freeze | May 18 | 1983 |
| Latest day ≥ 70 °F | November 28 | 1990 |
| Latest day ≥ 80 °F | October 25 | 1963 |
| Latest day ≥ 90 °F | September 29 | 1959 |
| Most days in a year < 0 °F | 15 | 1934 |
| Most days in a year < 32 °F | 146 | 1926 |
| Most days in a year ≥ 80 °F | 68 | 2005 |
| Most days in a year ≥ 90 °F | 18 | 1988 |
|
Oswego Weather Streaks
Most consecutive days...
|
||
|---|---|---|
| With precipitation | 23 days | Dec 16, 2000 – Jan 7, 2001 |
| Without precipitation | 24 days | May 27 – Jun 19, 1949 |
| With snow | 21 days | Jan 5–25, 2004 |
| High temperature at or below freezing |
41 days | Jan 27 – Mar 8, 1978 |
| High temperature ≥ 80 °F | 24 days | Jul 25 – Aug 17, 1988 |
| High temperature ≥ 90 °F | 4 days | Aug 6–9, 2001 |
| Years | Station | Coordinates |
|---|---|---|
| 1926–2024 | Oswego | location |