Daily values of weather observations: Ruokolahti Kurrola

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).本数据集涵盖芬兰气象研究所（Finnish Meteorological Institute）气象观测站的两类日尺度数据：一类为计算值，另一类为实测值。其中计算值包含日平均气温与日降水量；实测值则包括日最低气温、日最高气温、地面最低温度及积雪深度。气温极值的观测时刻为世界协调时（UTC）每日06时与18时，地面最低温度的观测时刻为每日06时，上述极值分别对应此前12小时观测周期（世界协调时18时至次日06时，以及06时至18时）内的极端数值。