from 2.0 to more

Extremely Wetter

from 1.5 to 1.99

Very wet

from 1.0 to 1.49

Moderately moist

from −0.99 to 0.99

Near normal

from −1.0 to -1.49

Moderately dry

from −1.5 to -1.99

Very dry

from −2 to less

Extremely dry