| Record high, °C | 40 | 38 | 38 | 37 | 38 | 40 | 41 | 42 | 42 | 39 | 38 | 35 | 42 | 
                                            
                    | Average high, °C | 32 | 36 | 36 | 34 | 34 | 37 | 39 | 39 | 38 | 36 | 33 | 31 | 35 | 
                                            
                    | Average temperature, °C | 28 | 30 | 28 | 25 | 25 | 28 | 31 | 34 | 34 | 31 | 28 | 28 | 29 | 
                                            
                    | Average low, °C | 22 | 23 | 19 | 17 | 16 | 19 | 23 | 26 | 26 | 24 | 23 | 22 | 22 | 
                                            
                    | Record low, °C | 15 | 17 | 14 | 10 | 11 | 15 | 18 | 22 | 19 | 20 | 20 | 20 | 10 | 
            
                                            
                    | Rain, days | 8 | 4 | 1 | 0 | 0 | 0 | 3 | 2 | 4 | 6 | 9 | 12 | 49 | 
            
                                                        
                    | Fog, days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 
            
                                            
                    | Thunderstorms, days | 19 | 14 | 3 | 0 | 0 | 1 | 2 | 7 | 16 | 19 | 22 | 21 | 124 | 
                                                                    
                    | Average precipitation, mm. | 120 | 28 | 0 | 1 | 0 | 1 | 4 | 13 | 43 | 93 | 162 | 200 | 664 | 
                                                                                
                        | Relative humidity, % | 72 | 58 | 41 | 34 | 28 | 24 | 26 | 35 | 48 | 59 | 70 | 75 | 48 | 
                                                                                    
                        | Relative humidity morning, % | 94 | 83 | 52 | 36 | 32 | 26 | 31 | 45 | 66 | 79 | 89 | 94 | 61 | 
                                                                                    
                        | Relative humidity evening, % | 59 | 35 | 17 | 12 | 12 | 10 | 14 | 19 | 31 | 47 | 57 | 64 | 31 | 
                                                                        
                    | Wind speed, km/h | 5 | 4 | 5 | 5 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 
                                                        
                    | Dew point, °C | 23 | 21 | 14 | 8 | 5 | 6 | 10 | 16 | 21 | 22 | 22 | 23 | 189 | 
                                                        
                    | Growing degree-day, °C | 540 | 617 | 552 | 471 | 459 | 506 | 654 | 705 | 729 | 621 | 567 | 543 | 6963 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 21 | 21 | 19 | 18 | 19 | 22 | 23 | 24 | 24 | 23 | 22 | 20 | 21 |