The traditional Chinese lunar calendar divides the year into 24 solar terms. Rain Water (Chinese: 雨水) this year starts on Feb 19 and ends on Mar 5.
傳統的中國農歷將一年分為24節氣。今年的“雨水”從2月19日開始，至3月5日結束。

Rain Water signals the increase in rainfall and rise in temperature. With its arrival, lively spring-like scenery starts blossoming: the river water defreezes, wild geese move from south to north, and trees and grass turn green again.
“雨水”節氣的到來預示著降雨增加，氣溫回升。萬物復蘇，充滿生機；冰面解凍，大雁北飛；綠樹萌新芽。

Here are five things you may not know about Rain Water.
下面就給大家講講“雨水”節氣你可能不知道的五件事。

No.1 Water as precious as oil 春雨貴如油

According to an old Chinese saying, the rainfall in spring is as precious as oil. In northern China, the spring drought is common and the precipitation of this season accounts for only 10 to 15 percent of annual average rainfall.
中國有諺語曰：春雨貴如油。在北方，春旱常發生，春季降水僅占全年平均降水量的10%到15%。

Therefore, Rain Water is considered as a key period for irrigation when the day gets warmer and rainfall increases.
因此，人們認為“雨水”節氣是灌溉的關鍵時期，此時天氣回暖，降雨增多。