| Record high, °C | 31 | 31 | 32 | 37 | 38 | 40 | 37 | 38 | 36 | 32 | 33 | 32 | 40 | 
                                            
                    | Average high, °C | 26 | 26 | 28 | 28 | 28 | 31 | 31 | 31 | 30 | 27 | 25 | 25 | 28 | 
                                            
                    | Average temperature, °C | 25 | 26 | 26 | 26 | 26 | 27 | 28 | 28 | 28 | 26 | 25 | 25 | 26 | 
                                            
                    | Average low, °C | 23 | 23 | 24 | 23 | 24 | 25 | 26 | 27 | 26 | 24 | 23 | 22 | 24 | 
                                            
                    | Record low, °C | 19 | 17 | 16 | 18 | 16 | 17 | 16 | 20 | 19 | 18 | 18 | 18 | 16 | 
            
                                            
                    | Rain, days | 11 | 7 | 3 | 1 | 1 | 0 | 1 | 1 | 2 | 5 | 12 | 16 | 60 | 
            
                                                        
                    | Fog, days | 2 | 2 | 4 | 4 | 1 | 2 | 1 | 0 | 1 | 2 | 5 | 4 | 28 | 
            
                                            
                    | Thunderstorms, days | 6 | 6 | 3 | 0 | 0 | 0 | 1 | 1 | 2 | 4 | 5 | 3 | 31 | 
                                                                    
                    | Average precipitation, mm. | 485 | 288 | 73 | 8 | 1 | 1 | 9 | 36 | 157 | 331 | 749 | 780 | 2917 | 
                                                                                
                        | Relative humidity, % | 85 | 80 | 75 | 64 | 58 | 57 | 57 | 61 | 71 | 80 | 84 | 86 | 71 | 
                                                                                    
                        | Relative humidity morning, % | 95 | 95 | 91 | 78 | 58 | 75 | 74 | 0 | 0 | 0 | 0 | 0 | 47 | 
                                                                                    
                        | Relative humidity evening, % | 74 | 70 | 54 | 35 | 30 | 29 | 30 | 36 | 54 | 70 | 79 | 80 | 53 | 
                                                                        
                    | Wind speed, km/h | 9 | 9 | 10 | 7 | 9 | 11 | 12 | 12 | 12 | 10 | 10 | 10 | 10 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 
                                                        
                    | Dew point, °C | 23 | 22 | 22 | 18 | 17 | 18 | 19 | 20 | 22 | 22 | 22 | 23 | 247 | 
                                                        
                    | Growing degree-day, °C | 462 | 487 | 489 | 490 | 496 | 486 | 561 | 552 | 543 | 480 | 468 | 468 | 5981 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 17 | 18 | 19 | 20 | 21 | 23 | 24 | 24 | 21 | 18 | 17 | 16 | 20 |