Table 4 Lower and USB monthly mean temperature descriptive statistics
From: Time series trend analysis of temperature and rainfall in lake Tana Sub-basin, Ethiopia
Temperature | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
LSB (52 years) | ||||||||||||
Min. | 14.4 | 14.8 | 17.3 | 18.5 | 18.9 | 18.2 | 14.5 | 15.4 | 15.6 | 16.4 | 15.1 | 14.5 |
Max. | 18.9 | 21.3 | 23.2 | 24.1 | 24.6 | 22.1 | 20.3 | 20.2 | 20.8 | 20.9 | 20.6 | 19.6 |
Mean | 17.1 | 18.6 | 20.7 | 21.6 | 21.6 | 20.4 | 18.8 | 18.7 | 19.0 | 19.4 | 18.4 | 17.0 |
SD | 1.2 | 1.4 | 1.2 | 1.6 | 1.1 | 1.0 | 1.1 | 0.9 | 0.9 | 0.9 | 1.1 | 1.3 |
CV | 7.3 | 7.5 | 6.0 | 7.2 | 4.9 | 4.9 | 5.7 | 4.7 | 4.7 | 4.8 | 6.0 | 7.7 |
r | 0.46 | 0.70 | 0.61 | 0.61 | 0.67 | 0.73 | 0.55 | 0.69 | 0.95 | 0.84 | 0.81 | 0.82 |
Slope | 0.04 | 0.06 | 0.04 | 0.07 | 0.04 | 0.34 | 0.02 | 0.03 | 0.03 | 0.04 | 0.04 | 0.05 |
USB (40 years) | ||||||||||||
Min. | 14.30 | 12.82 | 14.60 | 16.08 | 15.50 | 14.55 | 13.44 | 13.35 | 13.54 | 13.49 | 13.38 | 13.50 |
Max. | 16.75 | 18.03 | 22.00 | 19.71 | 19.12 | 17.65 | 15.60 | 17.14 | 16.05 | 16.05 | 16.00 | 15.56 |
Mean | 15.30 | 16.31 | 17.19 | 17.41 | 17.22 | 16.10 | 14.40 | 14.42 | 14.73 | 14.78 | 14.75 | 14.71 |
SD | 0.62 | 1.13 | 1.35 | 0.97 | 0.90 | 0.69 | 0.43 | 0.69 | 0.59 | 0.61 | 0.57 | 0.53 |
CV | 4.1 | 7.0 | 7.9 | 5.6 | 5.2 | 4.3 | 3.0 | 4.8 | 4.0 | 4.1 | 3.9 | 3.6 |
r | 0.55 | 0.77 | 0.55 | 0.79 | 0.75 | 0.57 | 0.09 | 0.464 | 0.59 | 0.45 | 0.61 | 0.41 |
Slope | 0.01 | 0.04 | 0.03 | 0.04 | 0.04 | 0.02 | 0.00 | 0.03 | 0.03 | 0.02 | 0.02 | 0.01 |