What is a rain map?

A rain map shows detailed precipitation levels for specific time periods.  Actual rainfall is estimated for each and every square mile of a state.

Why should I get a rain map?

It is an invaluable tool to help you locate wildlife.  You will able to pinpoint the exact areas that are most favorable for wildlife.  Hunting success, for instance, will be vastly improved.

How will the map tell me what areas got the most precipitation?

Rainfall for a certain time period is color coded based on rain amounts. 

Where does the rain data come from?

The data comes from Oregon State University's Spatial Climate Analysis Service (SCAS), the nation's premiere climate mapping center.  The data is generated using a model called PRISM (Parameter-elevation Regressions on Independent Slopes Model) which uses precipitation point data, elevation, temperature, dew points, rain shadows, temperature inversions, coastal regions, and other complex climatic regimes to estimate the most accurate precipitation data in the world.

Give me some more detail about the rain data!

The rainfall displayed on the maps is a combination of "actual" and "extrapolated" (estimated) rainfall. In Arizona, for instance, there are 219 rain stations in Arizona which report the "official"  rainfall (the same that is reported on the local news) - a few of the 219 only have historic data, so the actual number of "reporting" rain stations is about 150.
Wherever rain data is measured, i.e. at the rain stations, the map shows this exact number. In areas in between rain stations the rainfall is estimated based on the most sophisticated model that exists today. This model takes into account elevation, temperature, humidity, dew points, typical movement of storms, historic rain patterns, rain shadows etc, etc.

What other information does the map contain?

The map contains detailed roads, cities, towns, National Forests, National Parks, GPS-Grid, Distance Grid, Bodies of Water and Rivers.  Everything you will need to locate the precipitation patterns on the ground.

How are the maps delivered?

An email will be sent to you containing a link to the download area where you can download the map.  Maps are delivered in PDF format (Acrobat) (download a free copy of Acrobat Reader here).
 

What do the maps look like?

Click here for a screenshot of a zoomed map

Can I print the map?

Of course!
 

How do I print a zoomed section of the map?

Click here for instructions

What if my question isn't answered here?

Just send an email !