The precipitation is measured in mm water level. 1 mm corresponds in this case to an amount of 1 liter of water which fell onto 1 mē. In the table the daily sums and of the rain period and as well as the rain rate are performed (measure for the intensity of the rain) are given.
For the evaporation the term "evapotranspiration" is also common. It represents a (calculated) measure of the evaporation depending on temperature, air humidity and wind speed. The specification occurs in mm via the day sums.
The leaf wetness varies between 0 and 15, where 0 stands for a dry leaf. In addition the leaf wetness is well suitable for determine the starting time of rain or fog.
| Precitiptation | Evaporation | Leaf wetness | |||
|---|---|---|---|---|---|
| Daily sum | Rain period | Rain rate | |||
| Graph | ![]() |
![]() |
![]() |
![]() |
![]() |
| Value | 0.0 mm | 0.0 mm | 0.0 mm/h | 1.50 mm | --- |
| Maximum | 0.0 mm/h at ---- o'clock |
4 at 15:31 o'clock |
|||
In winter a heating melts firm preciptitatiom as snow or sleet and measured the corresponding water. In this case 1 cm of fresh-fallen snow can supply only 1 mm of water according to its consistence.
The recording of the amount of rain a and the rain rate starts with small amounts of precipitation a little later, as the actual beginning of the precipitation activity. This is reasonable in the measuring system, at which a certain minimum water quantity must be available.
From the amount of precipitation, the rain rate and the evaporation (evapotranspiration) a representation occurs for the last three days as well as for the last month:
In the table the measured values are compared with the amount of precipitation of the last 12 months with the climatic averages for the region around Leipzig (Source: Deutscher Wetterdienst). The month averages are formed from the daily totals and averaged over the years. In addition a comparison of the precipitation sums with the evaporation sums occurs. All measured values are in mm indicated.
| Jan | Feb | Mar | April | May | June | July | Aug | Sep | Oct | Nov | Dec | Year | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cl. average | 38.6 | 34.6 | 38.9 | 51.4 | 52.8 | 66.8 | 55.5 | 66.3 | 48.4 | 40.7 | 44.3 | 46.3 | 584.6 |
| Extreme values | 16.0 50.6 |
9.0 32.4 |
13.2 48.2 |
3.0 82.0 |
12.8 121.6 |
22.8 69.0 |
30.4 116.2 |
26.6 149.2 |
25.6 118.8 |
15.2 57.6 |
20.6 90.8 |
21.0 77.8 |
3.0 149.2 |
| Sum 2011 Difference |
50.6 131% |
18.0 52% |
13.2 34% |
25.8 50% |
24.2 46% |
60.6 91% |
116.2 209% |
59.4 90% |
(430.6) (95%) |
||||
| Sum 2010 Difference |
24.2 63% |
18.8 54% |
47.8 123% |
13.6 26% |
121.6 230% |
22.8 34% |
68.4 123% |
149.2 225% |
118.8 245% |
15.2 37% |
90.8 205% |
63.8 138% |
755.0 129% |
| Sum 2009 Difference ___________ Evaporation Difference |
19.0 49% _____ 9.5 +9.5 |
33.4 97% _____ 15.4 +18.0 |
51.2 132% _____ 36.4 +14.8 |
26.8 52% _____ 94.7 -67.9 |
60.0 114% _____ 105.7 -45.7 |
55.8 84% _____ 88.0 -32.2 |
95.4 172% _____ 102.3 -6.9 |
26.6 40% _____ 105.9 -79.3 |
33.2 69% _____ 58.4 -25.2 |
57.6 142% _____ --- --- |
63.6 144% _____ --- --- |
77.8 168% _____ --- --- |
600.4 103% _______ (616.3) (-214.7) |
| Sum 2008 Difference ___________ Evaporation Difference |
49.4 128% _____ 21.3 +28.1 |
9.0 26% _____ 25.5 -16.5 |
41.8 107% _____ 47.3 -5.5 |
82.0 160% _____ 58.6 +23.4 |
12.8 24% _____ 113.7 -100.9 |
69.0 103% _____ 118.9 -49.9 |
56.2 101% _____ 106.2 -50.0 |
40.6 61% _____ 94.4 -53.8 |
49.0 101% _____ 46.4 +2.6 |
53.4 131% _____ 28.3 +25.1 |
20.6 47% _____ 15.9 +4.7 |
31.2 67% _____ 15.9 +4.7 |
515.0 88% _______ 676.5 -161.5 |
| Sum 2007 Difference ___________ Evaporation Difference |
41.0 106% _____ 26.5 +14.5 |
30.4 88% _____ 21.7 +8.7 |
46.0 118% _____ 53.7 -7.7 |
3.0 6% _____ 104.8 -101.8 |
77.0 146% _____ 110.0 -33.0 |
56.0 83% _____ 110.6 -54.6 |
91.8 165% _____ 101.9 -10.1 |
58.4 88% _____ 82.1 -23.7 |
76.8 159% _____ 46.7 +30.1 |
17.8 44% _____ 25.5 -7.7 |
61.0 138% _____ 12.8 +48.2 |
22.2 48% _____ 12.2 +10,0 |
581.4 99% _______ 708.5 -127,1 |
| Sum 2006 Difference ___________ Evaporation Difference |
16.0 41% _____ 10.0 +6.0 |
32.4 94% _____ 15.7 +16.7 |
48.2 124% _____ 33.6 +14.6 |
40.2 78% _____ 62.6 -22.4 |
60.2 114% _____ 109.8 -49.6 |
57.0 85% _____ 120.4 -63.4 |
30.4 55% _____ 152.3 -121.9 |
84.4 127% _____ 77.2 +7.2 |
35.8 74% _____ 80.9 -45.1 |
46.2 114% _____ 35.0 +11.2 |
31.2 70% _____ 21.3 +9.9 |
21.0 45% _____ 16.2 +4.8 |
503.0 86% _______ 717.3 -214.3 |
| Sum 2005 Difference ___________ Evaporation Difference |
104.4 188% _____ 110.7 -6.7 |
51.2 77% _____ 84.9 -33.7 |
25.6 53% _____ 66.7 -41.1 |
21.0 52% _____ 43.9 -22.9 |
34.8 79% _____ 16.5 +18.3 |
44.6 96% _____ 9.8 +34.8 |
(281.6) (94%) _______ (332.5) (-50.9) |
Beside to values above other measurement variables are available: