| Record high, °C | 37 | 36 | 32 | 31 | 32 | 37 | 42 | 41 | 43 | 42 | 37 | 39 | 43 | 
                                            
                    | Average high, °C | 32 | 31 | 29 | 26 | 26 | 28 | 33 | 35 | 36 | 34 | 32 | 31 | 31 | 
                                            
                    | Average temperature, °C | 29 | 27 | 24 | 20 | 20 | 23 | 27 | 30 | 31 | 30 | 29 | 29 | 27 | 
                                            
                    | Average low, °C | 26 | 24 | 19 | 14 | 14 | 17 | 22 | 25 | 27 | 27 | 26 | 26 | 22 | 
                                            
                    | Record low, °C | 17 | 15 | 12 | 5 | 8 | 7 | 11 | 16 | 18 | 21 | 22 | 18 | 5 | 
            
                                            
                    | Rain, days | 14 | 6 | 3 | 1 | 2 | 3 | 3 | 6 | 11 | 14 | 19 | 16 | 98 | 
            
                                                        
                    | Fog, days | 3 | 7 | 8 | 15 | 16 | 10 | 7 | 2 | 1 | 0 | 1 | 1 | 71 | 
            
                                            
                    | Thunderstorms, days | 10 | 5 | 0 | 0 | 0 | 2 | 3 | 6 | 8 | 9 | 8 | 9 | 60 | 
                                                                    
                    | Average precipitation, mm. | 287 | 146 | 19 | 6 | 13 | 28 | 37 | 54 | 91 | 254 | 302 | 365 | 1603 | 
                                                                                                            
                        | Relative humidity morning, % | 94 | 93 | 90 | 90 | 91 | 88 | 88 | 90 | 90 | 92 | 94 | 94 | 91 | 
                                                                                    
                        | Relative humidity evening, % | 76 | 62 | 49 | 45 | 44 | 43 | 41 | 50 | 59 | 71 | 78 | 79 | 58 | 
                                                                        
                    | Wind speed, km/h | 6 | 4 | 4 | 4 | 4 | 4 | 6 | 8 | 9 | 8 | 6 | 6 | 6 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 12 | 11 | 11 | 12 | 12 | 13 | 14 | 14 | 14 | 13 | 13 | 
                                                        
                    | Dew point, °C | 25 | 23 | 18 | 13 | 12 | 15 | 18 | 23 | 25 | 26 | 26 | 26 | 250 | 
                                                        
                    | Growing degree-day, °C | 19 | 17 | 13 | 10 | 10 | 13 | 18 | 21 | 22 | 21 | 19 | 19 | 200 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 15 | 16 | 16 | 15 | 15 | 18 | 21 | 22 | 21 | 18 | 16 | 15 | 17 |