Divisional Rankings

Divisional Data Info
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.

Michigan, Climate Division 4

December 1977 Palmer Z-Index Rankings

View Period (Months):
  • Record Driest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Wettest
PeriodValue
1901-2000
Mean
AnomalyRank
(1895-2025)
Driest/Wettest
Since
Record
December 1977
1-Month
1.85-0.242.09119th Driest
Driest since:
1930
12th Wettest
Wettest since:
1972
Nov–Dec 1977
2-Month
1.64-0.221.86115th Driest
Driest since:
1930
16th Wettest
Wettest since:
2019
Oct–Dec 1977
3-Month
1.12-0.181.3095th Driest
Driest since:
1930
36th Wettest
Wettest since:
2019
Sep–Dec 1977
4-Month
1.36-0.241.60110th Driest
Driest since:
1908
21st Wettest
Wettest since:
2019
Aug–Dec 1977
5-Month
1.85-0.222.07124th Driest
Driest since:
1930
7th Wettest
Wettest since:
2014
Jul–Dec 1977
6-Month
1.45-0.171.62119th Driest
Driest since:
1930
12th Wettest
Wettest since:
2014
Jun–Dec 1977
7-Month
0.87-0.161.03103rd Driest
Driest since:
1908
28th Wettest
Wettest since:
1986
May–Dec 1977
8-Month
0.26-0.130.3976th Driest
Driest since:
1955
55th Wettest
Wettest since:
2019
Apr–Dec 1977
9-Month
0.02-0.100.1266th Driest
Driest since:
1955
65th Wettest
Wettest since:
2014
Mar–Dec 1977
10-Month
0.10-0.090.1971st Driest
Driest since:
1955
60th Wettest
Wettest since:
2014
Ties: 1921
Feb–Dec 1977
11-Month
0.09-0.080.1769th Driest
Driest since:
1955
62nd Wettest
Wettest since:
2019
Jan–Dec 1977
12-Month
-0.23-0.08-0.1554th Driest
Driest since:
1955
77th Wettest
Wettest since:
2019
Jul 1976–Dec 1977
18-Month
-1.00-0.10-0.9014th Driest
Driest since:
1914
116th Wettest
Wettest since:
1985
Jan 1976–Dec 1977
24-Month
-0.56-0.07-0.4923rd Driest
Driest since:
1914
107th Wettest
Wettest since:
2020
Jan 1975–Dec 1977
36-Month
0.03-0.060.0969th Driest
Driest since:
1910
60th Wettest
Wettest since:
2019
Ties: 1905, 1923
Jan 1974–Dec 1977
48-Month
0.13-0.050.1884th Driest
Driest since:
1911
44th Wettest
Wettest since:
2020
Ties: 1905
Jan 1973–Dec 1977
60-Month
0.16-0.050.2187th Driest
Driest since:
1914
40th Wettest
Wettest since:
2021

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