1943-1987 | 1988-1995 | 1996 | 1997 | 1998 | 1999 | |
Mean annual temperature (˚C) | 14.77 | 14.50 | 14.84 | 14.83 | 14.66 | 14.73 |
Mean annual precipitation (mm) | 650.35 | 625.13 | 786.80 | 556.60 | 416.50 | 508.10 |
Mean temp. in hottest month (˚C) | 23.56 | 23.78 | 23.43 | 23.20 | 24.40 | 24.30 |
Mean temp. in coldest month (˚C) | 6.63 | 5.99 | 6.84 | 8.90 | 6.30 | 6.10 |
Mean max. temp. in hottest month (˚C) | 30.79 | 30.50 | 29.85 | 28.50 | 30.70 | 28.80 |
Mean min. temp. in coldest month (˚C) | 1.19 | 0.25 | 1.22 | 3.50 | 2.10 | 0.00 |
N˚ days with mean temp. ≥ 10˚C | 269 | 264 | 280 | 290 | 256 | 259 |
N˚ rainy days | 63 | 59 | 86 | 130 | 54 | 58 |
Seasonal precipitation concentration index (winter) | 1.28 | 0.61 | 0.59 | 0.47 | 1.94 | 0.97 |
Seasonal precipitation concentration index (spring) | 0.78 | 1.02 | 0.39 | 1.06 | 1.24 | 0.96 |
Seasonal precipitation concentration index (summer) | 0.51 | 0.72 | 0.93 | 0.28 | 0.35 | 0.89 |
Seasonal precipitation concentration index (autumn) | 1.51 | 1.65 | 0.88 | 2.43 | 1.14 | 1.59 |
F-FAO | 92 | 96 | 54 | 58 | 86 | 130 |
Lang’s rain factor (R) | 44 | 43 | 53 | 38 | 28 | 35 |
De Martonne’s index (Ia) | 26 | 26 | 32 | 22 | 17 | 21 |
Emberger’s pluviometric quotient (Q) | 63.22 | 58.60 | 88.44 | 69.58 | 44.40 | 61.26 |