pluviometric coefficient

pluviometric coefficient

[¦plü·vē·ə¦me·trik ‚kō·i′fish·ənt]
(meteorology)
For any month at a given station, the ratio of the monthly normal precipitation to one-twelfth of the annual normal precipitation. Also known as hyetal coefficient.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.