Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Figure 10.
Figure 11.
Figure 12.
Figure 13.
The average differences between the seasonal precipitation for meteorological seasons and those of thermal and calendar seasons in 1951–2020 [mm]
| meteorological season | vs. thermal | vs. calendar |
|---|---|---|
| winter | +10 | −10 |
| spring | − 5 | + a dozen to several dozen |
| summer | − 1 to −5 | - several to − 20-odd |
| autumn | − 4 | - a dozen to − 20 |
The average differences between the temperatures of meteorological seasons and those of thermal and calendar seasons in 1951–2020 [°C]
| meteorological season | vs. thermal | vs. calendar |
|---|---|---|
| winter | +0.1 (West) to +0.4 (East) | +0.3 whole area |
| spring | +1.0 (West) to +2.5 (East) | +3–3.5 whole area |
| summer | +0.2 whole area | −0.5 whole area |
| autumn | −0.2 to −0.4 depending on the region | −3.0 whole area |
The coincidence of the beginning of the meteorological and thermal seasons, with up to five days’ variation (the number of occurrences between 1951 and 2020)
| station | spring | summer | autumn | winter | station | spring | summer | autumn | winter |
|---|---|---|---|---|---|---|---|---|---|
| BIAŁYSTOK | 12 | 53 | 60 | 68 | POZNAŃ | 27 | 57 | 51 | 68 |
| BIELSKO-BIAŁA | 33 | 52 | 51 | 65 | SANDOMIERZ | 25 | 57 | 46 | 69 |
| CHOJNICE | 15 | 53 | 63 | 68 | SIEDLCE | 18 | 58 | 55 | 68 |
| CZĘSTOCHOWA | 28 | 56 | 51 | 68 | SŁUBICE | 37 | 56 | 51 | 63 |
| GORZÓW | 30 | 58 | 48 | 68 | SUWAŁKI | 6 | 54 | 61 | 68 |
| JELENIA GÓRA | 27 | 45 | 66 | 68 | ŚWINOUJŚCIE | 29 | 47 | 45 | 63 |
| KALISZ | 25 | 56 | 46 | 68 | SZCZECIN | 32 | 55 | 49 | 65 |
| KIELCE | 23 | 53 | 53 | 68 | TARNÓW | 32 | 56 | 45 | 66 |
| KOSZALIN | 25 | 49 | 56 | 66 | TORUŃ | 25 | 57 | 52 | 68 |
| LUBLIN | 19 | 53 | 56 | 69 | WARSZAWA | 25 | 57 | 49 | 68 |
| ŁEBA | 12 | 40 | 55 | 67 | WŁODAWA | 18 | 59 | 52 | 69 |
| ŁÓDŹ | 21 | 56 | 52 | 68 | WROCŁAW | 33 | 57 | 45 | 67 |
| OLSZTYN | 17 | 53 | 55 | 68 | ZAKOPANE | 13 | 29 | 69 | 69 |
| OPOLE | 34 | 59 | 46 | 68 | ZIELONA GÓRA | 32 | 56 | 55 | 66 |
| PŁOCK | 23 | 55 | 47 | 68 | |||||