| Record high, °C | 38 | 37 | 36 | 33 | 38 | 38 | 37 | 36 | 35 | 37 | 37 | 39 | 39 | 
                                            
                    | Average high, °C | 33 | 33 | 32 | 32 | 33 | 33 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 
                                            
                    | Average temperature, °C | 28 | 28 | 28 | 28 | 28 | 28 | 29 | 29 | 29 | 29 | 28 | 28 | 28 | 
                                            
                    | Average low, °C | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 
                                            
                    | Record low, °C | 21 | 20 | 21 | 20 | 16 | 17 | 20 | 18 | 20 | 18 | 20 | 20 | 16 | 
            
                                            
                    | Rain, days | 13 | 17 | 18 | 15 | 11 | 12 | 16 | 16 | 14 | 9 | 10 | 11 | 162 | 
            
                                                        
                    | Fog, days | 18 | 20 | 21 | 24 | 25 | 22 | 24 | 23 | 22 | 18 | 19 | 18 | 254 | 
            
                                            
                    | Thunderstorms, days | 18 | 20 | 20 | 17 | 13 | 15 | 20 | 24 | 20 | 13 | 15 | 14 | 209 | 
                                                                    
                    | Average precipitation, mm. | 198 | 280 | 330 | 261 | 190 | 210 | 274 | 299 | 243 | 129 | 141 | 169 | 2724 | 
                                                                                
                        | Relative humidity, % | 80 | 85 | 85 | 85 | 80 | 80 | 80 | 85 | 80 | 80 | 80 | 80 | 82 | 
                                                                                    
                        | Relative humidity morning, % | 95 | 96 | 97 | 96 | 96 | 96 | 96 | 96 | 96 | 95 | 95 | 95 | 96 | 
                                                                                    
                        | Relative humidity evening, % | 71 | 73 | 76 | 72 | 66 | 66 | 68 | 73 | 71 | 66 | 66 | 65 | 69 | 
                                                                        
                    | Wind speed, km/h | 9 | 8 | 8 | 6 | 9 | 12 | 6 | 6 | 9 | 9 | 12 | 12 | 9 | 
                                                                    
                    | Day Length, часов | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 12 | 
                                                        
                    | Dew point, °C | 23 | 23 | 23 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 23 | 22 | 272 | 
                                                        
                    | Growing degree-day, °C | 543 | 561 | 536 | 547 | 552 | 520 | 578 | 566 | 586 | 560 | 563 | 565 | 6676 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 18 | 17 | 15 | 14 | 16 | 18 | 19 | 19 | 18 | 18 | 18 | 18 | 17 |