| Record high, °C | 35 | 37 | 36 | 33 | 32 | 37 | 38 | 37 | 37 | 37 | 38 | 36 | 38 | 
                                            
                    | Average high, °C | 28 | 28 | 27 | 26 | 27 | 28 | 30 | 31 | 30 | 28 | 28 | 28 | 28 | 
                                            
                    | Average temperature, °C | 25 | 25 | 23 | 23 | 23 | 24 | 25 | 27 | 26 | 25 | 25 | 25 | 25 | 
                                            
                    | Average low, °C | 20 | 21 | 20 | 19 | 20 | 20 | 21 | 22 | 22 | 21 | 21 | 21 | 21 | 
                                            
                    | Record low, °C | 17 | 14 | 13 | 12 | 11 | 13 | 12 | 17 | 17 | 17 | 16 | 17 | 11 | 
            
                                            
                    | Rain, days | 14 | 8 | 7 | 8 | 8 | 1 | 2 | 6 | 8 | 10 | 9 | 9 | 90 | 
            
                                                        
                    | Fog, days | 5 | 6 | 5 | 5 | 4 | 4 | 5 | 11 | 11 | 8 | 5 | 4 | 73 | 
            
                                            
                    | Thunderstorms, days | 23 | 15 | 3 | 3 | 8 | 0 | 3 | 13 | 21 | 28 | 21 | 25 | 163 | 
                                                                    
                    | Average precipitation, mm. | 261 | 154 | 45 | 9 | 10 | 4 | 9 | 30 | 204 | 233 | 80 | 113 | 1152 | 
                                                                                
                        | Relative humidity, % | 80 | 80 | 80 | 75 | 75 | 65 | 60 | 60 | 70 | 75 | 75 | 75 | 73 | 
                                                                                    
                        | Relative humidity morning, % | 91 | 90 | 87 | 85 | 86 | 87 | 86 | 86 | 88 | 92 | 88 | 89 | 88 | 
                                                                                    
                        | Relative humidity evening, % | 64 | 56 | 56 | 55 | 49 | 44 | 42 | 44 | 53 | 64 | 60 | 61 | 54 | 
                                                                        
                    | Wind speed, km/h | 9 | 16 | 16 | 19 | 20 | 22 | 19 | 17 | 16 | 12 | 16 | 14 | 16 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 
                                                        
                    | Dew point, °C | 19 | 18 | 17 | 16 | 16 | 15 | 16 | 17 | 18 | 20 | 18 | 19 | 209 | 
                                                        
                    | Growing degree-day, °C | 442 | 465 | 417 | 405 | 431 | 408 | 482 | 500 | 499 | 458 | 465 | 465 | 5437 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 19 | 17 | 16 | 15 | 16 | 19 | 22 | 22 | 20 | 20 | 20 | 20 | 19 |