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 7

December 1975 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 1975
1-Month
1.20-0.111.31105th Driest
Driest since:
1930
26th Wettest
Wettest since:
1972
Ties: 1954
Nov–Dec 1975
2-Month
0.30-0.080.3872nd Driest
Driest since:
1930
59th Wettest
Wettest since:
1959
Oct–Dec 1975
3-Month
-0.66-0.05-0.6142nd Driest
Driest since:
1930
89th Wettest
Wettest since:
1990
Sep–Dec 1975
4-Month
-0.46-0.07-0.3956th Driest
Driest since:
1930
75th Wettest
Wettest since:
1986
Aug–Dec 1975
5-Month
0.36-0.050.4182nd Driest
Driest since:
1930
49th Wettest
Wettest since:
1986
Jul–Dec 1975
6-Month
0.290.020.2781st Driest
Driest since:
1930
50th Wettest
Wettest since:
1986
Jun–Dec 1975
7-Month
0.360.020.3485th Driest
Driest since:
1930
46th Wettest
Wettest since:
1986
May–Dec 1975
8-Month
0.180.050.1377th Driest
Driest since:
1930
54th Wettest
Wettest since:
1902
Apr–Dec 1975
9-Month
0.300.070.2378th Driest
Driest since:
1930
53rd Wettest
Wettest since:
1996
Ties: 1961
Mar–Dec 1975
10-Month
0.300.060.2477th Driest
Driest since:
1930
54th Wettest
Wettest since:
1902
Feb–Dec 1975
11-Month
0.310.060.2581st Driest
Driest since:
1930
50th Wettest
Wettest since:
1996
Ties: 1961
Jan–Dec 1975
12-Month
0.450.070.3888th Driest
Driest since:
1930
43rd Wettest
Wettest since:
1996
Jul 1974–Dec 1975
18-Month
0.080.050.0365th Driest
Driest since:
1931
65th Wettest
Wettest since:
1986
Jan 1974–Dec 1975
24-Month
0.350.060.2987th Driest
Driest since:
1931
43rd Wettest
Wettest since:
1986
Jan 1973–Dec 1975
36-Month
0.260.060.2082nd Driest
Driest since:
1936
47th Wettest
Wettest since:
1986
Ties: 1898, 1944
Jan 1972–Dec 1975
48-Month
0.410.070.3499th Driest
Driest since:
1936
29th Wettest
Wettest since:
1986
Jan 1971–Dec 1975
60-Month
0.130.070.0666th Driest
Driest since:
1934
61st Wettest
Wettest since:
1986

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