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Standardized Precipitation Index (SPI) Products

Abstract: The standardized precipitation index data set may be accessed via
World Wide Web. Link to:

Five quantities are computed as part of the Standardized Precipitation
Index procedure. They follow as a consequence of an observation made
by Dr. Tom McKee, State Climatologist for Colorado, that users are
interested in one or several among the following types of ... View entire text
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Description: Documentation on SPI

Description: Documentation on SPI
Geographic Coverage
Spatial coordinates   
  N: 48.0   S: 25.0   E: -67.0   W: -125.0

Data Set Citation
Dataset Originator/Creator: Tom Mckee, Nolan Doesken and John Kleist
Dataset Title: Standardized Precipitation Index
Dataset Release Date: 1993
Dataset Release Place: Colorado
Dataset Publisher: Colorado Climate Center
Online Resource:
Temporal Coverage
Start Date: 1895-01-01
Data Set Progress
Originating Center
Data Center
Western Regional Climate Center Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 775-674-7010
Fax: 775-677-7016
Email: wrcc at
Contact Address:
Desert Research Institute
2215 Raggio Parkway
City: Reno
Province or State: Nevada
Postal Code: 89512
Country: USA
Distribution Media: WWW
Distribution Format: GIF
Fees: NONE
Guttman, N.B., 1998. Comparing the Palmer Drought Index and the
Standardized Precipitation Index. Journal of the American Water
Resources Association, 34(1), 113-121.
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Extended Metadata Properties
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Creation and Review Dates
Last DIF Revision Date: 2016-10-20

Link to Web Site