Number of days available for climatic review
Parameter | Jan | Feb | Mar | Apr | May | Jun |
Tmax | 1066 | 955 | 1063 | 1032 | 1072 | 1017 |
Tmin | 1076 | 972 | 1077 | 1038 | 1080 | 1037 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 99 | 87 | 113 | 108 | 106 | 96 |
Humidity/Visibility | 84 | 77 | 78 | 65 | 65 | 73 |
Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
Tmax | 1063 | 1063 | 1033 | 1088 | 1055 | 1095 |
Tmin | 1068 | 1063 | 1041 | 1089 | 1064 | 1100 |
Duration of sunshine | 0 | 0 | 0 | 0 | 0 | 0 |
Precipitation | 101 | 110 | 111 | 132 | 137 | 150 |
Humidity/Visibility | 52 | 47 | 76 | 106 | 97 | 109 |
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. |