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 1984 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 1984
1-Month
2.93-0.113.04126th Driest
Driest since:
1930
5th Wettest
Wettest since:
1972
Nov–Dec 1984
2-Month
1.90-0.081.98120th Driest
Driest since:
1930
11th Wettest
Wettest since:
1959
Oct–Dec 1984
3-Month
1.43-0.051.48109th Driest
Driest since:
1930
22nd Wettest
Wettest since:
1990
Sep–Dec 1984
4-Month
1.25-0.071.32106th Driest
Driest since:
1930
25th Wettest
Wettest since:
1986
Aug–Dec 1984
5-Month
1.13-0.051.18106th Driest
Driest since:
1930
25th Wettest
Wettest since:
1986
Jul–Dec 1984
6-Month
0.930.020.9197th Driest
Driest since:
1930
34th Wettest
Wettest since:
1986
Jun–Dec 1984
7-Month
0.960.020.94101st Driest
Driest since:
1930
30th Wettest
Wettest since:
1986
May–Dec 1984
8-Month
1.130.051.08106th Driest
Driest since:
1930
25th Wettest
Wettest since:
1902
Apr–Dec 1984
9-Month
1.140.071.07109th Driest
Driest since:
1930
22nd Wettest
Wettest since:
1996
Mar–Dec 1984
10-Month
1.230.061.17116th Driest
Driest since:
1930
15th Wettest
Wettest since:
1902
Feb–Dec 1984
11-Month
1.020.060.96109th Driest
Driest since:
1930
22nd Wettest
Wettest since:
1996
Jan–Dec 1984
12-Month
0.880.070.81105th Driest
Driest since:
1930
26th Wettest
Wettest since:
1996
Jul 1983–Dec 1984
18-Month
0.720.050.67107th Driest
Driest since:
1931
23rd Wettest
Wettest since:
1986
Jan 1983–Dec 1984
24-Month
0.750.060.69113th Driest
Driest since:
1931
17th Wettest
Wettest since:
1986
Ties: 1928
Jan 1982–Dec 1984
36-Month
0.590.060.53109th Driest
Driest since:
1936
20th Wettest
Wettest since:
1986
Ties: 1905, 1929
Jan 1981–Dec 1984
48-Month
0.730.070.66119th Driest
Driest since:
1936
9th Wettest
Wettest since:
1986
Jan 1980–Dec 1984
60-Month
0.700.070.63121st Driest
Driest since:
1934
6th WettestWettest to Date1986

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