Local forecast by "City, St" or zip code |
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Monthly/Annual Precipitation Products |
These pages graphically describe the monthly and annual precipitation across the ABRFC area of responsibility.
- "Observed precipitation estimate" images are a composite of all daily precipitation estimates for the specified duration. Since December 1997 the ABRFC has used Process 1 (P1) almost exclusively to create these precipitation estimates.
- "Normal precipitation" images are reprojections of PRISM climate data. These gridded climate maps are considered the most detailed, highest-quality spatial climate datasets currently available.
- "Percent-of-Normal" images are the product of dividing each "observed precipitation estimate" grid cell by its "normal precipitation" counterpart.
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