NCDC: Climate of 2002 - September

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Climate of 2002 - September
Idaho Drought

National Climatic Data Center, 11 October 2002

This month was drier than normal, statewide, ranking as the 43rd driest September in the 108-year record. The persistent dryness of the last nine months has resulted in the eleventh driest February-September, twelfth driest January-February, and 24th driest hydrologic year (October-September) on record.

According to the Idaho office of the USDA Natural Resources Conservation Service (Idaho Water Supply Specialist Ron Abramovich), below-average snowpack and streamflow during this hydrologic year contributed to below-average reservoir storage in the Boise River Basin in southwest Idaho. Aggregated reservoir levels were just under 60% of average as of September 2002.

Statewide Precipitation Ranks
for Idaho 2001-2002
Period	Rank
Sep	43^rd driest
Aug-Sep	27^th driest
Jul-Sep	22^nd driest
Jun-Sep	21^st driest
May-Sep	14^th driest
Apr-Sep	16^th driest
Mar-Sep	18^th driest
Feb-Sep	11^th driest
Jan-Sep	12^th driest
Dec-Sep	19^th driest
Nov-Sep	22^nd driest
Oct-Sep	24^th driest

Click here for graphic showing Idaho statewide precipitation departures, January 1998 - present

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Click here for graphic showing Idaho statewide Palmer Z Index, January 1998 - present

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Click here for graphic showing Idaho statewide precipitation, February-September 1895-2002

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Click here for graphic showing Idaho statewide Palmer Hydrological Drought Index, January 1900 - September 2002

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NCDC / Clim. Monitoring / Climate-2002 / Sep / U.S. Regional Drought / Search / Help

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Last Updated Thursday, 14-Jul-2005 15:16:20 EDT by Richard.Heim@noaa.gov
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