Climatological (standard meteorological) stations carry out observations at 07, 14 and 21 hrs mean local time and monitor meteorological phenomena during the day. Observations are performed by non-professional observers and the stations are usually situated on private land. Some of these stations forward public information data by phone, once or twice a day. At the end of each month, observation logs are forwarded by mail to MHS, where the data are entered into computers, controlled and stored. These data are used directly or via user programmes. Station spatial distribution meets WMO requirements.