| Record high, °C | 
                                            34 | 
                                            28 | 
                                            23 | 
                                            18 | 
                                            18 | 
                                            17 | 
                                            27 | 
                                            31 | 
                                            35 | 
                                            35 | 
                                            36 | 
                                            36 | 
                                        36 | 
                
                                            
                    | Average high, °C | 
                                            20 | 
                                            13 | 
                                            5 | 
                                            -2 | 
                                            -5 | 
                                            -3 | 
                                            1 | 
                                            10 | 
                                            18 | 
                                            23 | 
                                            26 | 
                                            24 | 
                                        11 | 
                
                                            
                    | Average temperature, °C | 
                                            14 | 
                                            8 | 
                                            1 | 
                                            -6 | 
                                            -9 | 
                                            -8 | 
                                            -2 | 
                                            5 | 
                                            13 | 
                                            18 | 
                                            21 | 
                                            19 | 
                                        6 | 
                
                                            
                    | Average low, °C | 
                                            9 | 
                                            4 | 
                                            -1 | 
                                            -10 | 
                                            -14 | 
                                            -13 | 
                                            -6 | 
                                            0 | 
                                            7 | 
                                            13 | 
                                            15 | 
                                            14 | 
                                        2 | 
                
                                            
                    | Record low, °C | 
                                            -3 | 
                                            -9 | 
                                            -19 | 
                                            -33 | 
                                            -38 | 
                                            -36 | 
                                            -28 | 
                                            -15 | 
                                            -4 | 
                                            -1 | 
                                            4 | 
                                            3 | 
                                        -38 | 
                
            
                                            
                    | Rain, days | 
                                            11 | 
                                            13 | 
                                            12 | 
                                            6 | 
                                            4 | 
                                            4 | 
                                            7 | 
                                            12 | 
                                            14 | 
                                            13 | 
                                            12 | 
                                            12 | 
                                        119 | 
                
            
                                            
                    | Snow, days | 
                                            0 | 
                                            1 | 
                                            6 | 
                                            13 | 
                                            16 | 
                                            12 | 
                                            9 | 
                                            4 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                        60 | 
                
                                                        
                    | Fog, days | 
                                            11 | 
                                            11 | 
                                            12 | 
                                            10 | 
                                            9 | 
                                            7 | 
                                            9 | 
                                            9 | 
                                            10 | 
                                            10 | 
                                            10 | 
                                            12 | 
                                        120 | 
                
            
                                            
                    | Thunderstorms, days | 
                                            2 | 
                                            1 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            1 | 
                                            2 | 
                                            5 | 
                                            6 | 
                                            6 | 
                                        23 | 
                
                                                        
                    | Snowfall, cm. | 
                                            0 | 
                                            1 | 
                                            15 | 
                                            38 | 
                                            47 | 
                                            37 | 
                                            29 | 
                                            10 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                        177 | 
                
                                                        
                    | Average precipitation, mm. | 
                                            87 | 
                                            75 | 
                                            88 | 
                                            85 | 
                                            72 | 
                                            65 | 
                                            72 | 
                                            72 | 
                                            69 | 
                                            84 | 
                                            86 | 
                                            91 | 
                                        946 | 
                
                                                                                                            
                        | Relative humidity morning, % | 
                                                    85 | 
                                                    84 | 
                                                    81 | 
                                                    78 | 
                                                    74 | 
                                                    74 | 
                                                    74 | 
                                                    72 | 
                                                    72 | 
                                                    75 | 
                                                    77 | 
                                                    82 | 
                                                77 | 
                    
                                                                                    
                        | Relative humidity evening, % | 
                                                    63 | 
                                                    64 | 
                                                    71 | 
                                                    72 | 
                                                    69 | 
                                                    64 | 
                                                    61 | 
                                                    55 | 
                                                    53 | 
                                                    56 | 
                                                    56 | 
                                                    59 | 
                                                62 | 
                    
                                                                        
                    | Wind speed, km/h | 
                                            14 | 
                                            16 | 
                                            17 | 
                                            17 | 
                                            19 | 
                                            17 | 
                                            19 | 
                                            17 | 
                                            16 | 
                                            14 | 
                                            14 | 
                                            12 | 
                                        16 | 
                
                                                        
                    | Monthly sunshine, часов | 
                                            182 | 
                                            144 | 
                                            84 | 
                                            84 | 
                                            101 | 
                                            128 | 
                                            164 | 
                                            178 | 
                                            229 | 
                                            240 | 
                                            272 | 
                                            246 | 
                                        2052 | 
                
                                                        
                    | Day Length, часов | 
                                            13 | 
                                            11 | 
                                            10 | 
                                            9 | 
                                            10 | 
                                            11 | 
                                            13 | 
                                            14 | 
                                            16 | 
                                            16 | 
                                            16 | 
                                            15 | 
                                        13 | 
                
                                                        
                    | Dew point, °C | 
                                            10 | 
                                            3 | 
                                            -2 | 
                                            -10 | 
                                            -13 | 
                                            -12 | 
                                            -7 | 
                                            0 | 
                                            6 | 
                                            11 | 
                                            15 | 
                                            14 | 
                                        15 | 
                
                                                        
                    | Growing degree-day, °C | 
                                            133 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            0 | 
                                            69 | 
                                            233 | 
                                            319 | 
                                            276 | 
                                        1030 | 
                
                                                        
                    | Atmosphere pressure, bar | 
                                            1013 | 
                                            1014 | 
                                            1013 | 
                                            1014 | 
                                            1013 | 
                                            1014 | 
                                            1013 | 
                                            1011 | 
                                            1011 | 
                                            1010 | 
                                            1010 | 
                                            1012 | 
                                        12147 | 
                
                                                        
                    | Solar radiation, global, Mj/m2 | 
                                            14 | 
                                            9 | 
                                            5 | 
                                            5 | 
                                            6 | 
                                            9 | 
                                            13 | 
                                            16 | 
                                            18 | 
                                            20 | 
                                            20 | 
                                            18 | 
                                        13 |