| Record high, °C | 40 | 41 | 41 | 42 | 40 | 42 | 44 | 46 | 45 | 47 | 42 | 40 | 47 | 
                                            
                    | Average high, °C | 32 | 35 | 35 | 31 | 31 | 34 | 37 | 40 | 40 | 36 | 32 | 31 | 35 | 
                                            
                    | Average temperature, °C | 28 | 30 | 28 | 25 | 25 | 27 | 31 | 34 | 35 | 32 | 30 | 28 | 29 | 
                                            
                    | Average low, °C | 25 | 25 | 21 | 18 | 18 | 21 | 24 | 28 | 30 | 28 | 26 | 25 | 24 | 
                                            
                    | Record low, °C | 20 | 17 | 13 | 6 | 10 | 10 | 11 | 18 | 20 | 21 | 18 | 20 | 6 | 
            
                                            
                    | Rain, days | 8 | 4 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 4 | 9 | 11 | 40 | 
            
                                                        
                    | Fog, days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 
            
                                            
                    | Thunderstorms, days | 12 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 10 | 12 | 47 | 
                                                                    
                    | Average precipitation, mm. | 173 | 53 | 3 | 0 | 0 | 0 | 0 | 2 | 29 | 120 | 201 | 260 | 840 | 
                                                                                
                        | Relative humidity, % | 77 | 66 | 48 | 35 | 30 | 25 | 24 | 28 | 40 | 60 | 74 | 79 | 49 | 
                                                                                    
                        | Relative humidity morning, % | 91 | 83 | 52 | 40 | 36 | 34 | 31 | 30 | 40 | 65 | 81 | 89 | 56 | 
                                                                                    
                        | Relative humidity evening, % | 62 | 41 | 21 | 17 | 16 | 16 | 14 | 14 | 20 | 37 | 55 | 64 | 31 | 
                                                                        
                    | Wind speed, km/h | 9 | 8 | 8 | 9 | 9 | 9 | 12 | 12 | 12 | 14 | 12 | 9 | 10 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 
                                                        
                    | Dew point, °C | 23 | 20 | 10 | 4 | 2 | 3 | 5 | 7 | 13 | 20 | 22 | 23 | 152 | 
                                                        
                    | Growing degree-day, °C | 558 | 620 | 550 | 474 | 465 | 502 | 620 | 600 | 620 | 600 | 603 | 568 | 6780 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 20 | 20 | 19 | 17 | 18 | 20 | 23 | 24 | 24 | 23 | 21 | 20 | 21 |