See Amount of Rain Needed to Form the Main Vernal Pool on the Mesa de Colorado for an analysis of the data presented on this page. The table below presents the rainfall data in Fallbrook, parameterized in terms of the amount of rainfall in the last month and the amount of rainfall in the last two months, between the date of my last observation of no water in the Pool and the date of my first observation that the Pool contained water.
Date Rainfall (") in Last Comments One Month Two Months 11/24/96 5.2 5.2 last observation with no pool 11/30/96 4.3 5.2 12/06/96 4.6 5.6 12/09/96 4.8 5.7 12/10/96 5.6 6.5 pool established 12/08/97 5.6 5.6 12/11/97 5.1 5.6 12/14/97 4.6 5.6 12/15/97 4.3 5.6 12/18/97 4.6 5.9 12/21/97 4.8 6.1 12/22/97 4.8 6.2 12/27/97 3 6.2 12/31/97 2.6 6.2 01/01/98 2.5 6.2 01/03/98 2.8 6.5 01/04/98 2.9 6.6 01/05/98 3.2 6.9 last observation with no pool 01/06/98 2.1 6.9 01/07/98 1.8 6.9 01/08/98 1.3 6.9 01/09/98 1.9 7.5 01/10/98 3.2 8.9 pool established 12/06/98 3.1 3.1 high point without a pool 12/21/98 2 3.5 " 01/27/99 2 4 " 02/10/99 3.1 3.4 " 01/27/2000 0.6 0.8 last observation with no pool 01/31/2000 1 1.2 02/10/2000 1.5 1.5 02/12/2000 2.1 2.1 02/13/2000 2.4 2.4 02/14/2000 2.6 2.6 02/16/2000 2.6 2.8 02/17/2000 2.8 3 02/20/2000 3.3 3.6 02/21/2000 4.6 4.8 02/22/2000 5.5 5.7 02/23/2000 6 6.2 first observation with pool 01/12/2001 2.7 2.7
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Copyright © 2001 by Tom Chester.
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Comments and feedback: Tom Chester
Updated 13 January 2001.