| Record high, °C | 
                                            42 | 
                                            40 | 
                                            36 | 
                                            31 | 
                                            30 | 
                                            30 | 
                                            35 | 
                                            41 | 
                                            44 | 
                                            42 | 
                                            39 | 
                                            37 | 
                                        44 | 
                
                                            
                    | Average high, °C | 
                                            30 | 
                                            28 | 
                                            24 | 
                                            20 | 
                                            18 | 
                                            18 | 
                                            20 | 
                                            25 | 
                                            27 | 
                                            29 | 
                                            31 | 
                                            31 | 
                                        25 | 
                
                                            
                    | Average temperature, °C | 
                                            24 | 
                                            22 | 
                                            18 | 
                                            13 | 
                                            12 | 
                                            12 | 
                                            14 | 
                                            18 | 
                                            21 | 
                                            23 | 
                                            25 | 
                                            26 | 
                                        19 | 
                
                                            
                    | Average low, °C | 
                                            19 | 
                                            16 | 
                                            12 | 
                                            9 | 
                                            7 | 
                                            7 | 
                                            9 | 
                                            12 | 
                                            15 | 
                                            18 | 
                                            21 | 
                                            21 | 
                                        14 | 
                
                                            
                    | Record low, °C | 
                                            11 | 
                                            7 | 
                                            3 | 
                                            -0 | 
                                            -1 | 
                                            -2 | 
                                            -0 | 
                                            3 | 
                                            7 | 
                                            12 | 
                                            14 | 
                                            15 | 
                                        -2 | 
                
            
                                            
                    | Rain, days | 
                                            0 | 
                                            3 | 
                                            7 | 
                                            11 | 
                                            13 | 
                                            11 | 
                                            9 | 
                                            3 | 
                                            1 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                        59 | 
                
            
                                                        
                    | Fog, days | 
                                            19 | 
                                            17 | 
                                            13 | 
                                            15 | 
                                            14 | 
                                            15 | 
                                            21 | 
                                            22 | 
                                            25 | 
                                            25 | 
                                            28 | 
                                            27 | 
                                        241 | 
                
            
                                            
                    | Thunderstorms, days | 
                                            0 | 
                                            1 | 
                                            3 | 
                                            3 | 
                                            4 | 
                                            4 | 
                                            3 | 
                                            1 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                        19 | 
                
                                                                    
                    | Average precipitation, mm. | 
                                            0 | 
                                            20 | 
                                            77 | 
                                            161 | 
                                            145 | 
                                            98 | 
                                            67 | 
                                            19 | 
                                            3 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                        590 | 
                
                                                                                
                        | Relative humidity, % | 
                                                    70 | 
                                                    65 | 
                                                    65 | 
                                                    70 | 
                                                    75 | 
                                                    75 | 
                                                    70 | 
                                                    65 | 
                                                    65 | 
                                                    65 | 
                                                    70 | 
                                                    70 | 
                                                69 | 
                    
                                                                                    
                        | Relative humidity morning, % | 
                                                    67 | 
                                                    68 | 
                                                    72 | 
                                                    80 | 
                                                    82 | 
                                                    80 | 
                                                    74 | 
                                                    66 | 
                                                    64 | 
                                                    65 | 
                                                    68 | 
                                                    70 | 
                                                71 | 
                    
                                                                                    
                        | Relative humidity evening, % | 
                                                    52 | 
                                                    50 | 
                                                    49 | 
                                                    54 | 
                                                    56 | 
                                                    54 | 
                                                    53 | 
                                                    47 | 
                                                    49 | 
                                                    52 | 
                                                    54 | 
                                                    55 | 
                                                52 | 
                    
                                                                        
                    | Wind speed, km/h | 
                                            6 | 
                                            6 | 
                                            8 | 
                                            16 | 
                                            9 | 
                                            8 | 
                                            17 | 
                                            16 | 
                                            16 | 
                                            16 | 
                                            16 | 
                                            16 | 
                                        13 | 
                
                                                                    
                    | Day Length, часов | 
                                            13 | 
                                            12 | 
                                            11 | 
                                            11 | 
                                            11 | 
                                            12 | 
                                            12 | 
                                            13 | 
                                            14 | 
                                            15 | 
                                            15 | 
                                            14 | 
                                        13 | 
                
                                                        
                    | Dew point, °C | 
                                            18 | 
                                            15 | 
                                            10 | 
                                            8 | 
                                            6 | 
                                            7 | 
                                            8 | 
                                            10 | 
                                            13 | 
                                            16 | 
                                            19 | 
                                            20 | 
                                        150 | 
                
                                                        
                    | Growing degree-day, °C | 
                                            417 | 
                                            362 | 
                                            233 | 
                                            86 | 
                                            52 | 
                                            47 | 
                                            121 | 
                                            233 | 
                                            327 | 
                                            383 | 
                                            465 | 
                                            482 | 
                                        3208 | 
                
                                                                    
                    | Solar radiation, global, Mj/m2 | 
                                            21 | 
                                            16 | 
                                            11 | 
                                            9 | 
                                            10 | 
                                            12 | 
                                            17 | 
                                            22 | 
                                            26 | 
                                            28 | 
                                            27 | 
                                            25 | 
                                        19 |