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Weather Europe > Poland > 
Olsztyn > 
| Month | Max. | Min. | Avg. |
|---|---|---|---|
| January | 7°C | -13°C | -2°C |
| February | 13°C | -2°C | 4°C |
| March | 22°C | -1°C | 6°C |
| April | 25°C | -2°C | 10°C |
| May | 27°C | 1°C | 15°C |
| June | 33°C | 7°C | 17°C |
| July | 33°C | 0°C | 18°C |
| August | 34°C | 0°C | 19°C |
| September | 31°C | 8°C | 19°C |
| October | 27°C | 2°C | 10°C |
| November | 14°C | -11°C | 3°C |
| December | 8°C | -8°C | 1°C |
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