| Record high, °C | 35 | 31 | 27 | 22 | 18 | 24 | 25 | 29 | 34 | 35 | 37 | 37 | 37 | 
                                            
                    | Average high, °C | 26 | 21 | 16 | 10 | 7 | 7 | 11 | 17 | 22 | 25 | 29 | 31 | 19 | 
                                            
                    | Average temperature, °C | 22 | 16 | 11 | 6 | 4 | 4 | 7 | 12 | 17 | 21 | 25 | 26 | 14 | 
                                            
                    | Average low, °C | 18 | 11 | 7 | 3 | 0 | 0 | 2 | 7 | 12 | 17 | 22 | 22 | 10 | 
                                            
                    | Record low, °C | 8 | 2 | -1 | -5 | -9 | -8 | -6 | -1 | 1 | 7 | 12 | 14 | -9 | 
            
                                            
                    | Rain, days | 12 | 8 | 8 | 13 | 13 | 11 | 8 | 7 | 6 | 8 | 8 | 7 | 109 | 
            
                                            
                    | Snow, days | 0 | 0 | 1 | 6 | 15 | 14 | 5 | 0 | 0 | 0 | 0 | 0 | 41 | 
                                                        
                    | Fog, days | 10 | 12 | 11 | 9 | 5 | 5 | 7 | 8 | 9 | 11 | 12 | 10 | 109 | 
            
                                            
                    | Thunderstorms, days | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 3 | 2 | 10 | 
                                                        
                    | Snowfall, cm. | 0 | 0 | 2 | 26 | 64 | 38 | 4 | 0 | 0 | 0 | 0 | 0 | 134 | 
                                                        
                    | Average precipitation, mm. | 237 | 139 | 122 | 130 | 146 | 138 | 122 | 113 | 117 | 184 | 232 | 144 | 1824 | 
                                                                                
                        | Relative humidity, % | 81 | 77 | 75 | 76 | 77 | 76 | 73 | 75 | 76 | 79 | 81 | 81 | 77 | 
                                                                                    
                        | Relative humidity morning, % | 90 | 90 | 87 | 86 | 86 | 85 | 85 | 85 | 87 | 88 | 89 | 89 | 87 | 
                                                                                    
                        | Relative humidity evening, % | 67 | 63 | 64 | 66 | 68 | 66 | 61 | 55 | 57 | 66 | 67 | 64 | 64 | 
                                                                        
                    | Wind speed, km/h | 12 | 16 | 6 | 8 | 8 | 6 | 14 | 14 | 12 | 12 | 6 | 12 | 11 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 11 | 10 | 11 | 11 | 12 | 14 | 15 | 15 | 15 | 14 | 13 | 
                                                        
                    | Dew point, °C | 18 | 12 | 8 | 3 | 1 | 1 | 3 | 7 | 12 | 17 | 21 | 22 | 125 | 
                                                        
                    | Growing degree-day, °C | 350 | 172 | 33 | 0 | 0 | 0 | 0 | 50 | 207 | 325 | 474 | 499 | 2110 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 13 | 11 | 8 | 6 | 7 | 9 | 13 | 18 | 19 | 17 | 18 | 19 | 13 |