72 
Ueckermünde, Szczecin Lagoon 
Monthly mean 
Normal value and (deviation) 
Number of days with frost and 
(sum of coldness in °C) 
November 
6.5 
4.4 (+2,1) 
0(0) 
December 
3.1 
0.9 (+2.2) 
9 (-19.7) 
January 
0.7 
-0.9 (+1.6) 
12 (-18.1) 
February 
1.1 
-0.2 (+1.3) 
10 (-35.6) 
March 
2.4 
2.8 (-0.4) 
10 (-11.6) 
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Figure 7.1. Running 5-day means of air temperature in Ueckermunde in the winter of 2000/01 (data 
from German Weather Service) 
The air temperature mean values in December, January, and February at the Ueckermunde station 
were 1 - 2 °K higher than the mean values from the years 1961-1990. Five cold spells, interrupted by 
periods with positive temperatures, were recorded during this year's winter season (Figure 7.1). 
Water temperatures in the southern part of the Pomeranian Bay briefly reached critical values near 
0 °C in the third decade of January. With rising air temperatures in the following week, also the water 
temperatures increased again without any new ice having formed. There was no other period during 
the 2000/01 winter season when ice could have formed in the Pomeranian Bay (Figure 7.2). 
Table 7.2. Water temperatures in °C in Koserow (at 3 m depth) in the winter of 2000/01 
(MURSYS, 2001) 
Koserow, sea area 
Mean 
Minimum 
Maximum 
November 
7.9 
4.2 
10.0 
December 
5.5 
2.4 
6.9 
January 
2.3 
0.9 
3.1 
February 
1.5 
0.6 
2.5 
March 
2.0 
1.0 
3.7