Estadísticos de lluvia anual por departamento y país
| Departamento | Area (Km^2) | Lluvia promedio (mm) | Desviación Estandar | Límite superior | Límite inferior |
| Alta Verapaz | 8686 | 2655.4 | 471.7 | 2844.1 | 2466.7 |
| Baja Verapaz | 3124 | 1297.2 | 235.4 | 1391.4 | 1203 |
| Chimaltenango | 1979 | 1570.1 | 244.7 | 1668 | 1472.2 |
| Chiquimula | 2376 | 1439.4 | 196.1 | 1517.8 | 1361 |
| El Progreso | 1922 | 1137.9 | 259.7 | 1241.8 | 1034 |
| Escuintla | 4386 | 3001 | 660.6 | 3265.2 | 2736.8 |
| Guatemala | 2126 | 1408.8 | 302.3 | 1529.7 | 1287.9 |
| Huehuetenango | 7400 | 1578.2 | 320.6 | 1706.4 | 1450 |
| Izabal | 9038 | 2310.1 | 298.4 | 2429.5 | 2190.7 |
| Jalapa | 2063 | 1170.9 | 209.3 | 1254.6 | 1087.2 |
| Jutiapa | 3216 | 1369.5 | 320.1 | 1497.5 | 1241.5 |
| Petén | 35854 | 1942.3 | 289 | 2057.9 | 1826.7 |
| Quetzaltenango | 1953 | 2030.7 | 446.1 | 2209.1 | 1852.3 |
| Quiché | 8378 | 1973.2 | 344.9 | 2111.2 | 1835.2 |
| Retalhuleu | 1856 | 2793.4 | 608.7 | 3036.9 | 2549.9 |
| Sacatepéquez | 465 | 1585.7 | 357.1 | 1728.5 | 1442.9 |
| San Marcos | 3791 | 1898 | 411.4 | 2062.6 | 1733.4 |
| Santa Rosa | 2995 | 1866.5 | 425.2 | 2036.6 | 1696.4 |
| Sololá | 1061 | 1545.8 | 405.6 | 1708 | 1383.6 |
| Suchitepéquez | 2510 | 2995.5 | 657.9 | 3258.7 | 2732.3 |
| Totonicapán | 1061 | 1082.7 | 269.2 | 1190.4 | 975.02 |
| Zacapa | 2690 | 1396.9 | 291.3 | 1513.4 | 1280.4 |
| País | 108930 | 1967.1 | 246.3 | 2065.6 | 1868.6 |
