Weather Helsinki - Selected year and month

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Month:   01     02     03     04     05     06     07     08     09     10     11     12     
Weather statistics of month 12/2010
month curves
 
Low temperature -25.0°C 2010-12-23 23:50
High temperature 0.0°C 2010-12-05 15:50
Low wind chill -33.6°C 2010-12-23 23:50
Average temperature -8.9°C  
High wind speed (10min) 11.0m/s 2010-12-10 00:50
Low pressure 992.0hPa 2010-12-06 19:20
High pressure 1028.0hPa 2010-12-28 20:50
Low R.H 57% 2010-12-02 21:50
Days with mintemp <= -15 °C 8   
Maximum snow depth 55cm 2010-12-19 00:20
daily averages

If mean daily temperature is continuously:
< 0 °C = thermal winter,   > +10°C = thermal summer
0°C - +10°C = thermal spring or thermal autumn

Unit conversions:
  • Temperature: 0 °C = 32 °F,    (°F = 32 +1.8*°C)
  • Wind speed:  1 m/s = 3,6 km/h = 2.23694 mph = 1.94387 kt