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 05/2018
month curves
 
Low temperature +4.3°C 2018-05-06 05:00
High temperature +29.1°C 2018-05-15 13:30
Low wind chill 1.7°C 2018-05-05 06:30
Average temperature +15.3°C  
High wind speed (10min) 10.3m/s 2018-05-18 14:30
Low pressure 1006.6hPa 2018-05-01 12:00
High pressure 1033.2hPa 2018-05-28 08:30
Low R.H 17% 2018-05-13 14:30
High daily precipitation 6.1mm 2018-05-02
Total precipitation of the month 10.9mm  
Days with maxtemp >= +25 °C 6   
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