| Record high, °C | 32 | 28 | 22 | 17 | 12 | 18 | 20 | 28 | 32 | 35 | 37 | 37 | 37 | 
                                            
                    | Average high, °C | 25 | 19 | 11 | 4 | 1 | 3 | 9 | 17 | 22 | 26 | 28 | 29 | 16 | 
                                            
                    | Average temperature, °C | 20 | 13 | 5 | 0 | -3 | -1 | 4 | 11 | 16 | 21 | 24 | 25 | 11 | 
                                            
                    | Average low, °C | 15 | 7 | 0 | -5 | -8 | -6 | -1 | 4 | 10 | 16 | 21 | 21 | 6 | 
                                            
                    | Record low, °C | 3 | -2 | -11 | -22 | -26 | -20 | -11 | -2 | 1 | 8 | 13 | 12 | -26 | 
            
                                            
                    | Rain, days | 10 | 9 | 10 | 7 | 4 | 5 | 9 | 10 | 10 | 12 | 18 | 15 | 119 | 
            
                                            
                    | Snow, days | 0 | 0 | 2 | 7 | 9 | 6 | 3 | 0 | 0 | 0 | 0 | 0 | 27 | 
                                                        
                    | Fog, days | 23 | 25 | 24 | 26 | 25 | 22 | 25 | 24 | 25 | 26 | 27 | 24 | 296 | 
            
                                            
                    | Thunderstorms, days | 2 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 4 | 4 | 16 | 
                                                                    
                    | Average precipitation, mm. | 148 | 55 | 54 | 23 | 25 | 30 | 47 | 92 | 87 | 119 | 336 | 280 | 1296 | 
                                                                                                            
                        | Relative humidity morning, % | 92 | 91 | 88 | 85 | 84 | 84 | 87 | 88 | 89 | 91 | 94 | 93 | 89 | 
                                                                                    
                        | Relative humidity evening, % | 58 | 53 | 58 | 61 | 62 | 59 | 52 | 51 | 53 | 59 | 69 | 67 | 59 | 
                                                                        
                    | Wind speed, km/h | 6 | 12 | 12 | 14 | 12 | 16 | 14 | 16 | 12 | 8 | 8 | 6 | 11 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 11 | 10 | 10 | 11 | 12 | 14 | 15 | 15 | 15 | 14 | 13 | 
                                                        
                    | Dew point, °C | 16 | 8 | 1 | -4 | -7 | -5 | 0 | 5 | 11 | 16 | 21 | 21 | 83 | 
                                                        
                    | Growing degree-day, °C | 300 | 86 | 0 | 0 | 0 | 0 | 0 | 8 | 181 | 317 | 439 | 456 | 1788 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 15 | 13 | 10 | 9 | 10 | 13 | 16 | 20 | 20 | 18 | 14 | 15 | 14 |