These projections are PRELIMINARY. You must check back frequently to determine whether you have the most recent estimates.

Last changed January 18, 2008

- Monthly precipitation anomalies relative to a monthly climatology data are averaged over a 2 year period centered on each month. These histograms thus represent presistent (two year or longer) anomalies.

- the observed precipitation histogram (green) matches the model 20th century (blue) quite well.