| Record high, °C | 
                                            38 | 
                                            33 | 
                                            27 | 
                                            22 | 
                                            18 | 
                                            20 | 
                                            26 | 
                                            31 | 
                                            36 | 
                                            38 | 
                                            42 | 
                                            42 | 
                                        42 | 
                
                                            
                    | Average high, °C | 
                                            33 | 
                                            26 | 
                                            19 | 
                                            11 | 
                                            8 | 
                                            10 | 
                                            15 | 
                                            21 | 
                                            27 | 
                                            33 | 
                                            37 | 
                                            37 | 
                                        23 | 
                
                                            
                    | Average temperature, °C | 
                                            26 | 
                                            19 | 
                                            13 | 
                                            7 | 
                                            4 | 
                                            6 | 
                                            10 | 
                                            15 | 
                                            20 | 
                                            26 | 
                                            30 | 
                                            30 | 
                                        17 | 
                
                                            
                    | Average low, °C | 
                                            19 | 
                                            13 | 
                                            8 | 
                                            4 | 
                                            1 | 
                                            2 | 
                                            5 | 
                                            10 | 
                                            14 | 
                                            19 | 
                                            23 | 
                                            23 | 
                                        12 | 
                
                                            
                    | Record low, °C | 
                                            11 | 
                                            2 | 
                                            -2 | 
                                            -2 | 
                                            -8 | 
                                            -10 | 
                                            -2 | 
                                            -2 | 
                                            6 | 
                                            10 | 
                                            17 | 
                                            17 | 
                                        -10 | 
                
            
                                            
                    | Rain, days | 
                                            0 | 
                                            1 | 
                                            4 | 
                                            6 | 
                                            8 | 
                                            5 | 
                                            5 | 
                                            2 | 
                                            3 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                        34 | 
                
            
                                                        
                    | Fog, days | 
                                            1 | 
                                            1 | 
                                            4 | 
                                            9 | 
                                            8 | 
                                            6 | 
                                            4 | 
                                            1 | 
                                            1 | 
                                            1 | 
                                            1 | 
                                            1 | 
                                        38 | 
                
            
                                            
                    | Thunderstorms, days | 
                                            1 | 
                                            2 | 
                                            1 | 
                                            1 | 
                                            1 | 
                                            0 | 
                                            1 | 
                                            1 | 
                                            1 | 
                                            1 | 
                                            1 | 
                                            1 | 
                                        12 | 
                
                                                                    
                    | Average precipitation, mm. | 
                                            0 | 
                                            20 | 
                                            60 | 
                                            90 | 
                                            120 | 
                                            60 | 
                                            70 | 
                                            30 | 
                                            40 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                        490 | 
                
                                                                                
                        | Relative humidity, % | 
                                                    28 | 
                                                    43 | 
                                                    57 | 
                                                    72 | 
                                                    74 | 
                                                    72 | 
                                                    61 | 
                                                    51 | 
                                                    43 | 
                                                    27 | 
                                                    22 | 
                                                    24 | 
                                                48 | 
                    
                                                                                    
                        | Relative humidity morning, % | 
                                                    56 | 
                                                    66 | 
                                                    76 | 
                                                    76 | 
                                                    76 | 
                                                    73 | 
                                                    70 | 
                                                    69 | 
                                                    63 | 
                                                    55 | 
                                                    47 | 
                                                    48 | 
                                                65 | 
                    
                                                                                    
                        | Relative humidity evening, % | 
                                                    33 | 
                                                    44 | 
                                                    60 | 
                                                    63 | 
                                                    66 | 
                                                    61 | 
                                                    54 | 
                                                    51 | 
                                                    43 | 
                                                    35 | 
                                                    27 | 
                                                    27 | 
                                                47 | 
                    
                                                                        
                    | Wind speed, km/h | 
                                            6 | 
                                            4 | 
                                            6 | 
                                            8 | 
                                            8 | 
                                            8 | 
                                            8 | 
                                            8 | 
                                            9 | 
                                            9 | 
                                            9 | 
                                            6 | 
                                        7 | 
                
                                                                    
                    | Day Length, часов | 
                                            13 | 
                                            12 | 
                                            11 | 
                                            10 | 
                                            10 | 
                                            11 | 
                                            12 | 
                                            14 | 
                                            15 | 
                                            15 | 
                                            15 | 
                                            14 | 
                                        13 | 
                
                                                        
                    | Dew point, °C | 
                                            3 | 
                                            5 | 
                                            4 | 
                                            2 | 
                                            0 | 
                                            0 | 
                                            2 | 
                                            4 | 
                                            6 | 
                                            3 | 
                                            3 | 
                                            5 | 
                                        37 | 
                
                                                        
                    | Growing degree-day, °C | 
                                            492 | 
                                            301 | 
                                            125 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            9 | 
                                            175 | 
                                            336 | 
                                            492 | 
                                            620 | 
                                            620 | 
                                        3169 | 
                
                                                                    
                    | Solar radiation, global, Mj/m2 | 
                                            20 | 
                                            14 | 
                                            10 | 
                                            7 | 
                                            8 | 
                                            11 | 
                                            15 | 
                                            19 | 
                                            24 | 
                                            27 | 
                                            28 | 
                                            24 | 
                                        17 |