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.

Nevada, Climate Division 4

December 2015 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 2015
1-Month
-1.02-0.06-0.9648th Driest
Driest since:
1980
83rd Wettest
Wettest since:
2010
Ties: 2006
Nov–Dec 2015
2-Month
-0.78-0.11-0.6750th Driest
Driest since:
2017
81st Wettest
Wettest since:
1965
Oct–Dec 2015
3-Month
0.61-0.070.68106th Driest
Driest since:
2017
25th Wettest
Wettest since:
2004
Sep–Dec 2015
4-Month
0.02-0.050.0777th Driest
Driest since:
2020
54th Wettest
Wettest since:
2004
Aug–Dec 2015
5-Month
-0.08-0.04-0.0474th Driest
Driest since:
2020
57th Wettest
Wettest since:
1909
Ties: 1904, 1907
Jul–Dec 2015
6-Month
0.01-0.010.0281st Driest
Driest since:
2020
50th Wettest
Wettest since:
1984
Ties: 1947, 1963
Jun–Dec 2015
7-Month
-0.290.01-0.3051st Driest
Driest since:
2024
80th Wettest
Wettest since:
1941
May–Dec 2015
8-Month
-0.340.01-0.3555th Driest
Driest since:
2024
76th Wettest
Wettest since:
1941
Apr–Dec 2015
9-Month
-0.500.01-0.5147th Driest
Driest since:
2002
84th Wettest
Wettest since:
1941
Ties: 1954
Mar–Dec 2015
10-Month
-0.690.02-0.7133rd Driest
Driest since:
1989
98th Wettest
Wettest since:
1941
Ties: 1899, 1948
Feb–Dec 2015
11-Month
-0.770.04-0.8133rd Driest
Driest since:
2002
98th Wettest
Wettest since:
1941
Jan–Dec 2015
12-Month
-0.740.05-0.7933rd Driest
Driest since:
2002
98th Wettest
Wettest since:
1941
Jul 2014–Dec 2015
18-Month
-0.510.03-0.5436th Driest
Driest since:
2002
94th Wettest
Wettest since:
1941
Ties: 1898, 1904
Jan 2014–Dec 2015
24-Month
-0.970.05-1.027th Driest
Driest since:
1929
123rd Wettest
Wettest since:
1979
Ties: 2014
Jan 2013–Dec 2015
36-Month
-0.890.05-0.947th Driest
Driest since:
1964
122nd Wettest
Wettest since:
1980
Jan 2012–Dec 2015
48-Month
-0.800.04-0.844th Driest
Driest since:
2009
124th Wettest
Wettest since:
1981
Ties: 2003
Jan 2011–Dec 2015
60-Month
-0.650.04-0.698th Driest
Driest since:
2003
119th Wettest
Wettest since:
1909

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