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The weather in Oswego in January is very cold with temperatures between -8°C and -2°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Oswego during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Let it snow! You can expect Oswego to be covered in white during the month of January. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in Oswego in January 2025.
If you’re planning to visit Oswego in the near future, we highly recommend that you review the 14 day weather forecast for Oswego before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -8° | 5 | 11 | 15 | 84 mm | Awful | Oswego in January |
| February | 0° / -7° | 4 | 12 | 13 | 87 mm | Awful | Oswego in February |
| March | 8° / 1° | 7 | 17 | 6 | 116 mm | Awful | Oswego in March |
| April | 14° / 5° | 9 | 19 | 2 | 163 mm | Bad | Oswego in April |
| May | 21° / 12° | 10 | 21 | 0 | 207 mm | Ok | Oswego in May |
| June | 26° / 17° | 10 | 20 | 0 | 225 mm | Good | Oswego in June |
| July | 28° / 19° | 9 | 22 | 0 | 178 mm | Good | Oswego in July |
| August | 27° / 18° | 8 | 23 | 0 | 158 mm | Good | Oswego in August |
| September | 24° / 14° | 5 | 25 | 0 | 113 mm | Perfect | Oswego in September |
| October | 17° / 8° | 7 | 24 | 0 | 138 mm | Ok | Oswego in October |
| November | 9° / 2° | 6 | 21 | 3 | 81 mm | Bad | Oswego in November |
| December | 2° / -3° | 6 | 15 | 10 | 84 mm | Awful | Oswego in December |