Climate at a Glance | Divisional Mapping | National Centers for Environmental Information (NCEI)

Divisional Mapping

State:

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Year:

Month:

Time Scale:

Please note, Degree Days and Palmer Indices are not available for Alaska or Hawaii. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales. Data are available for bulk download.

Value Anomaly Rank Mean

Divisional Palmer Z-Index

October - December 1940

-4-3-2-11234

Massachusetts (Hover over a Climate Division)

Z-Index Palmer Z-Index : -0.54

Anomaly: -0.46

Rank: 42nd Driest

Mean: -0.08

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October - December 1940 Massachusetts Divisional Palmer Z-Index
Climate Division	Value	Anomaly	Rank 130 Years	1901-2000 Mean
1. West	-0.45	-0.39	49	-0.07
2. Central	-0.51	-0.40	44	-0.11
3. Coastal	-0.39	-0.34	46	-0.05

Citing This Page

NOAA National Centers for Environmental information, Climate at a Glance: Divisional Mapping, published July 2025, retrieved on July 29, 2025 from https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/divisional/mapping