Number of days available for climatic review
| Parameter | Jan | Feb | Mar | Apr | May | Jun |
| Maksimali temperatūra | 1583 | 1457 | 1591 | 1535 | 1570 | 1516 |
| Minimali temperatūra | 1593 | 1471 | 1605 | 1543 | 1585 | 1529 |
| Duration of sunshine | 93 | 84 | 93 | 90 | 93 | 120 |
| Krituliai | 1115 | 1008 | 1116 | 1081 | 1116 | 1079 |
| Humidity/Visibility | 143 | 125 | 144 | 135 | 142 | 137 |
| Parameter | Jul | Aug | Sep | Oct | Nov | Dec |
| Maksimali temperatūra | 1579 | 1614 | 1569 | 1622 | 1565 | 1621 |
| Minimali temperatūra | 1589 | 1617 | 1574 | 1625 | 1577 | 1619 |
| Duration of sunshine | 93 | 62 | 120 | 124 | 120 | 124 |
| Krituliai | 1115 | 1150 | 1113 | 1138 | 1080 | 1126 |
| Humidity/Visibility | 140 | 158 | 166 | 158 | 137 | 145 |
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. |
