| Record high, °C | 31 | 30 | 31 | 32 | 33 | 33 | 33 | 32 | 30 | 28 | 29 | 29 | 33 | 
                                            
                    | Average high, °C | 25 | 27 | 27 | 28 | 30 | 29 | 30 | 28 | 27 | 26 | 25 | 25 | 27 | 
                                            
                    | Average temperature, °C | 23 | 24 | 25 | 26 | 27 | 27 | 27 | 26 | 25 | 23 | 22 | 22 | 25 | 
                                            
                    | Average low, °C | 20 | 21 | 22 | 24 | 25 | 25 | 25 | 23 | 22 | 20 | 19 | 19 | 22 | 
                                            
                    | Record low, °C | 15 | 17 | 19 | 17 | 20 | 19 | 20 | 20 | 17 | 16 | 15 | 16 | 15 | 
            
                                            
                    | Rain, days | 6 | 6 | 8 | 11 | 16 | 15 | 10 | 9 | 6 | 6 | 3 | 3 | 99 | 
            
                                                        
                    | Fog, days | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 
            
                                            
                    | Thunderstorms, days | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 3 | 
                                                                    
                    | Average precipitation, mm. | 121 | 206 | 215 | 281 | 379 | 262 | 167 | 177 | 124 | 63 | 80 | 97 | 2172 | 
                                                                                
                        | Relative humidity, % | 70 | 70 | 75 | 75 | 80 | 80 | 80 | 75 | 75 | 70 | 70 | 70 | 74 | 
                                                                                    
                        | Relative humidity morning, % | 67 | 66 | 66 | 70 | 75 | 78 | 76 | 78 | 70 | 66 | 68 | 67 | 71 | 
                                                                                    
                        | Relative humidity evening, % | 63 | 65 | 66 | 69 | 71 | 71 | 68 | 68 | 65 | 63 | 63 | 62 | 66 | 
                                                                        
                    | Wind speed, km/h | 8 | 6 | 9 | 9 | 14 | 16 | 6 | 6 | 8 | 8 | 8 | 8 | 9 | 
                                                                    
                    | Day Length, часов | 12 | 13 | 14 | 14 | 14 | 13 | 13 | 12 | 12 | 11 | 11 | 12 | 13 | 
                                                        
                    | Dew point, °C | 16 | 18 | 19 | 21 | 22 | 22 | 22 | 21 | 18 | 16 | 15 | 15 | 225 | 
                                                        
                    | Growing degree-day, °C | 392 | 448 | 458 | 517 | 551 | 494 | 543 | 492 | 456 | 400 | 379 | 388 | 5517 | 
                                                                    
                    | Solar radiation, global, Mj/m2 | 23 | 26 | 27 | 25 | 25 | 23 | 22 | 19 | 16 | 15 | 16 | 19 | 21 |