| Record high, °C | 
                                            29 | 
                                            23 | 
                                            17 | 
                                            12 | 
                                            9 | 
                                            14 | 
                                            21 | 
                                            25 | 
                                            30 | 
                                            33 | 
                                            34 | 
                                            32 | 
                                        34 | 
                
                                            
                    | Average high, °C | 
                                            16 | 
                                            11 | 
                                            4 | 
                                            0 | 
                                            -2 | 
                                            -2 | 
                                            3 | 
                                            10 | 
                                            16 | 
                                            20 | 
                                            22 | 
                                            21 | 
                                        10 | 
                
                                            
                    | Average temperature, °C | 
                                            12 | 
                                            6 | 
                                            1 | 
                                            -2 | 
                                            -4 | 
                                            -4 | 
                                            -1 | 
                                            5 | 
                                            11 | 
                                            15 | 
                                            17 | 
                                            16 | 
                                        6 | 
                
                                            
                    | Average low, °C | 
                                            8 | 
                                            4 | 
                                            -0 | 
                                            -4 | 
                                            -7 | 
                                            -7 | 
                                            -4 | 
                                            1 | 
                                            6 | 
                                            10 | 
                                            12 | 
                                            12 | 
                                        2 | 
                
                                            
                    | Record low, °C | 
                                            -3 | 
                                            -9 | 
                                            -19 | 
                                            -32 | 
                                            -34 | 
                                            -35 | 
                                            -23 | 
                                            -11 | 
                                            -5 | 
                                            -1 | 
                                            4 | 
                                            2 | 
                                        -35 | 
                
            
            
                                                        
                    | Fog, days | 
                                            24 | 
                                            26 | 
                                            26 | 
                                            27 | 
                                            27 | 
                                            25 | 
                                            27 | 
                                            25 | 
                                            23 | 
                                            23 | 
                                            24 | 
                                            25 | 
                                        302 | 
                
            
                                            
                    | Thunderstorms, days | 
                                            1 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            1 | 
                                            2 | 
                                            3 | 
                                            2 | 
                                        9 | 
                
                                                                    
                    | Average precipitation, mm. | 
                                            79 | 
                                            60 | 
                                            57 | 
                                            46 | 
                                            34 | 
                                            27 | 
                                            28 | 
                                            41 | 
                                            43 | 
                                            60 | 
                                            74 | 
                                            73 | 
                                        622 | 
                
                                                                                
                        | Relative humidity, % | 
                                                    81 | 
                                                    85 | 
                                                    90 | 
                                                    89 | 
                                                    88 | 
                                                    85 | 
                                                    79 | 
                                                    70 | 
                                                    68 | 
                                                    72 | 
                                                    74 | 
                                                    77 | 
                                                80 | 
                    
                                                                                    
                        | Relative humidity morning, % | 
                                                    90 | 
                                                    88 | 
                                                    88 | 
                                                    88 | 
                                                    87 | 
                                                    86 | 
                                                    87 | 
                                                    86 | 
                                                    83 | 
                                                    88 | 
                                                    90 | 
                                                    91 | 
                                                88 | 
                    
                                                                                    
                        | Relative humidity evening, % | 
                                                    69 | 
                                                    74 | 
                                                    83 | 
                                                    85 | 
                                                    83 | 
                                                    78 | 
                                                    70 | 
                                                    61 | 
                                                    56 | 
                                                    61 | 
                                                    65 | 
                                                    65 | 
                                                71 | 
                    
                                                                        
                    | Wind speed, km/h | 
                                            11 | 
                                            12 | 
                                            13 | 
                                            14 | 
                                            14 | 
                                            13 | 
                                            13 | 
                                            12 | 
                                            12 | 
                                            11 | 
                                            10 | 
                                            10 | 
                                        12 | 
                
                                                        
                    | Monthly sunshine, часов | 
                                            153 | 
                                            93 | 
                                            39 | 
                                            22 | 
                                            31 | 
                                            62 | 
                                            127 | 
                                            183 | 
                                            264 | 
                                            288 | 
                                            264 | 
                                            229 | 
                                        1754 | 
                
                                                        
                    | Day Length, часов | 
                                            13 | 
                                            11 | 
                                            9 | 
                                            8 | 
                                            8 | 
                                            10 | 
                                            13 | 
                                            15 | 
                                            18 | 
                                            19 | 
                                            18 | 
                                            16 | 
                                        13 | 
                
                                                        
                    | Dew point, °C | 
                                            8 | 
                                            4 | 
                                            0 | 
                                            -3 | 
                                            -6 | 
                                            -6 | 
                                            -3 | 
                                            0 | 
                                            5 | 
                                            10 | 
                                            12 | 
                                            12 | 
                                        33 | 
                
                                                        
                    | Growing degree-day, °C | 
                                            68 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            35 | 
                                            155 | 
                                            217 | 
                                            200 | 
                                        675 | 
                
                                                        
                    | Atmosphere pressure, bar | 
                                            1013 | 
                                            1014 | 
                                            1012 | 
                                            1010 | 
                                            1012 | 
                                            1014 | 
                                            1014 | 
                                            1013 | 
                                            1016 | 
                                            1012 | 
                                            1012 | 
                                            1013 | 
                                        12155 | 
                
                                                        
                    | Solar radiation, global, Mj/m2 | 
                                            10 | 
                                            5 | 
                                            2 | 
                                            1 | 
                                            2 | 
                                            5 | 
                                            9 | 
                                            14 | 
                                            20 | 
                                            21 | 
                                            20 | 
                                            16 | 
                                        11 |