Wielkopolska is influenced by oceanic air masses that affect the mildness of the climate. The farther east one travels the more distinctly continental the climate becomes. The area is situated in the Silesian Greater Poland agro-climatic region where the average annual temperature is about 8.2 °C, and in the north drops to around 7.6 °C. It is slightly warmer in the south and west where the average temperature is usually about 8.5 °C. The number of days with snow can reach up to 57 days in and around the Kalisz district.