Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1024 | 955 | 1054 | 1041 | 1068 | 1050 |
Tmin | 1026 | 952 | 1053 | 1043 | 1070 | 1049 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 62 | 59 | 64 | 90 | 93 | 94 |
Humidity/Visibility | 61 | 55 | 61 | 83 | 92 | 89 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1084 | 1083 | 1038 | 1077 | 1046 | 1076 |
Tmin | 1084 | 1084 | 1039 | 1077 | 1045 | 1085 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 94 | 100 | 90 | 95 | 92 | 94 |
Humidity/Visibility | 91 | 90 | 88 | 86 | 86 | 90 |
Climate data is usually derived from meteorological data of a certain number of years. The actual number of recorded years may vary from only a couple to 50 years or more. The quality of climate data depends on the number of available recorded years. Fewer years means less reliable data. The standart-period for reliable climate data is 30 years. For example, the mean monthly temperature for, let's say January, would ideally calculated from a total number of 930 recorded January-days. However, the usual number of recorded days is much smaller. The table above shows the actual number of recorded days for every parameter measured. |