Excerpt from Dry-Land Gardening at the Northern Great Plains Field Station, Mandan, N. Dak The 50 - year mean annual precipitation is about 17 inches. The month of maximum precipitation is June, with a mean of more than inches, and the month of minimum precipitation is February, with less than inch. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.