When did it start to rain last Saturday?

It is estimated that the ten-day average temperature in our region will be about 13.5℃ in late March, with rainfall of about 20mm and sunshine of about 30 hours, which is close to normal. There was a strong cooling weather process on 22-24, and the daily average temperature dropped by 7-9℃, with moderate rain and partial heavy rain in most areas. All localities should actively take measures to prevent the adverse effects of strong cooling weather on spring sowing. From 28th to 30th, there was light rain in most areas. ...