| Record high, °C | 47 | 43 | 37 | 30 | 27 | 31 | 38 | 42 | 47 | 48 | 51 | 50 | 51 | 
                                            
                    | Average high, °C | 41 | 33 | 26 | 19 | 17 | 20 | 24 | 31 | 37 | 42 | 44 | 43 | 31 | 
                                            
                    | Average temperature, °C | 33 | 27 | 20 | 14 | 13 | 15 | 20 | 25 | 31 | 35 | 36 | 36 | 25 | 
                                            
                    | Average low, °C | 26 | 21 | 15 | 10 | 7 | 10 | 13 | 19 | 25 | 28 | 30 | 29 | 19 | 
                                            
                    | Record low, °C | 16 | 10 | 3 | -2 | 0 | -1 | 0 | 7 | 13 | 22 | 22 | 22 | -2 | 
            
                                            
                    | Rain, days | 0 | 3 | 4 | 8 | 7 | 6 | 9 | 6 | 3 | 0 | 0 | 0 | 46 | 
            
                                                        
                    | Fog, days | 2 | 5 | 4 | 10 | 11 | 7 | 4 | 1 | 0 | 0 | 1 | 1 | 46 | 
            
                                            
                    | Thunderstorms, days | 0 | 1 | 1 | 2 | 1 | 1 | 3 | 2 | 2 | 0 | 0 | 0 | 13 | 
                                                                    
                    | Average precipitation, mm. | 0 | 1 | 15 | 20 | 24 | 17 | 14 | 12 | 4 | 0 | 0 | 0 | 107 | 
                                                                                
                        | Relative humidity, % | 34 | 45 | 57 | 66 | 68 | 60 | 51 | 45 | 35 | 28 | 28 | 30 | 46 | 
                                                                                    
                        | Relative humidity morning, % | 35 | 50 | 65 | 79 | 80 | 74 | 67 | 53 | 37 | 24 | 23 | 28 | 51 | 
                                                                                    
                        | Relative humidity evening, % | 13 | 22 | 32 | 44 | 44 | 37 | 30 | 23 | 15 | 9 | 9 | 11 | 24 | 
                                                                        
                    | Wind speed, km/h | 19 | 17 | 17 | 17 | 17 | 17 | 17 | 19 | 20 | 27 | 25 | 22 | 20 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 11 | 11 | 11 | 12 | 12 | 13 | 14 | 14 | 14 | 14 | 13 | 
                                                        
                    | Dew point, °C | 7 | 8 | 8 | 6 | 5 | 5 | 6 | 7 | 6 | 3 | 5 | 7 | 73 | 
                                                        
                    | Growing degree-day, °C | 683 | 517 | 300 | 121 | 86 | 141 | 310 | 450 | 637 | 750 | 792 | 792 | 5580 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 24 | 18 | 13 | 11 | 12 | 16 | 19 | 21 | 25 | 29 | 27 | 26 | 20 |