| Record high, °C | 42 | 41 | 40 | 38 | 40 | 45 | 40 | 45 | 41 | 42 | 38 | 42 | 45 | 
                                            
                    | Average high, °C | 31 | 33 | 33 | 31 | 32 | 34 | 36 | 36 | 35 | 34 | 32 | 31 | 33 | 
                                            
                    | Average temperature, °C | 27 | 28 | 27 | 24 | 24 | 26 | 27 | 28 | 28 | 29 | 28 | 27 | 27 | 
                                            
                    | Average low, °C | 22 | 22 | 20 | 16 | 15 | 17 | 18 | 19 | 20 | 23 | 23 | 23 | 20 | 
                                            
                    | Record low, °C | 18 | 17 | 12 | 8 | 8 | 11 | 8 | 13 | 16 | 20 | 18 | 17 | 8 | 
            
                                            
                    | Rain, days | 11 | 5 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 4 | 12 | 15 | 53 | 
            
                                                        
                    | Fog, days | 7 | 13 | 12 | 8 | 2 | 4 | 7 | 10 | 14 | 9 | 6 | 4 | 96 | 
            
                                            
                    | Thunderstorms, days | 11 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 9 | 13 | 42 | 
                                                                    
                    | Average precipitation, mm. | 283 | 95 | 4 | 1 | 0 | 1 | 0 | 0 | 6 | 83 | 244 | 379 | 1097 | 
                                                                                
                        | Relative humidity, % | 81 | 75 | 62 | 50 | 44 | 44 | 46 | 49 | 56 | 66 | 76 | 80 | 61 | 
                                                                                    
                        | Relative humidity morning, % | 96 | 94 | 83 | 67 | 59 | 64 | 72 | 80 | 86 | 89 | 91 | 94 | 81 | 
                                                                                    
                        | Relative humidity evening, % | 72 | 63 | 41 | 28 | 25 | 23 | 29 | 39 | 48 | 56 | 68 | 74 | 47 | 
                                                                        
                    | Wind speed, km/h | 5 | 5 | 5 | 7 | 7 | 8 | 9 | 9 | 9 | 8 | 7 | 6 | 7 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 
                                                        
                    | Dew point, °C | 24 | 23 | 19 | 13 | 11 | 13 | 14 | 16 | 19 | 22 | 23 | 23 | 219 | 
                                                        
                    | Growing degree-day, °C | 513 | 552 | 498 | 440 | 437 | 452 | 527 | 531 | 564 | 558 | 549 | 530 | 6151 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 19 | 19 | 19 | 17 | 18 | 20 | 22 | 24 | 24 | 22 | 20 | 19 | 20 |