Daily values of weather observations: Söderskär lighthouse

The data includes computational and measured daily values from the Finnish Meteorological Institute's weather observation station. The calculated values are the daily average air temperature and the daily precipitation. Measured values include minimum and maximum air temperature, minimum ground temperature and snow depth. The extremes of air temperature are measured at 06 and 18 UTC and the minimum ground temperature at 06 UTC. These represent extreme values over the previous 12-hour period (18-06 and 06-18 UTC).本数据集收录芬兰气象研究所（Finnish Meteorological Institute）气象观测站的计算逐日数据与实测逐日数据。其中，计算值为逐日平均气温与逐日降水量；实测值包含逐日最低气温、逐日最高气温、逐日最低地面温度及积雪深度。气温极值的观测时刻为协调世界时（UTC）06时与18时，地面最低温度的观测时刻为协调世界时（UTC）06时。前述极值对应此前12小时观测时段（协调世界时18时至次日06时、06时至18时）内的极端值。