Multi-Scale Standardized Precipitation Index Time Series Plots for Arizona and New Mexico

(Click here for all US States!)
The Standardized Precipitation Index (SPI) is a useful tool for monitoring drought at multiple timescales. Short-term drought conditions can impact agricultural activities while long-term drought can impact water resources. Given these different timescales, varying intensities of drought and even lack of drought can exist at the same time. The plots below are created by calculating the SPI value at all timescales between one and sixty months for each month using National Climatic Data Center climate division precipitation data. The plots are updated several times a month as the climate division is updated with new precipitation data.Click here for more information on how to interpret the plots. More SPI data plots can be found a the Western Regional Climate Center.
AZ Climate Division NM Climate Division

Arizona Plots

New Mexico Plots


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Plots for other states...
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Please contact Mike Crimmins with comments/questions

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Last Updated: 8/22/12 2012 The Arizona Board of Regents. All contents copyrighted. All rights reserved.