Resource provided by UW-Madison Robinson Map Library. This data represents average monthly precipitation for Wisconsin from 1971 to 2000, and includes the layers 'precip1971_2000apr_a_wi', 'precip1971_2000aug_a_wi', 'precip1971_2000dec_a_wi', 'precip1971_2000feb_a_wi', 'precip1971_2000jan_a_wi', 'precip1971_2000jul_a_wi', 'precip1971_2000jun_a_wi', 'precip1971_2000mar_a_wi', 'precip1971_2000may_a_wi', 'precip1971_2000nov_a_wi', 'precip1971_2000oct_a_wi', 'precip1971_2000sep_a_wi'.[This dataset provides derived average annual precipitation according to a model using point precipitation and elevation data for the 30-year period of 1971-2000.]