Use the form below to display U.S. ASOS Temperature and Precipitation Departure and Degree Day maps. Please note that the maps are based on raw data from the U.S. ASOS Network and the data have not been quality controlled.

Please note: Heating and Cooling Degree Days are only available in contour format. Heating Degree Days are not calculated from June through August. Cooling Degree Days are not calculated from December through February. Three-month and precipitation maps are not available in Contour format, and therefore, no Three-Month Degree Day maps are available.