National Haywoods

National Data Info

Use the options below to create a cumulative time series of each selected 12-month period in the period of record.

Please note, Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

In the interactive chart below, the 5 warmest years, 5 coolest years, current year, and period of record average are highlighted to stand out. All other years are in light gray.


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