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.

Texas, Climate Division 2

December 2020 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 2020
1-Month
-0.750.03-0.7850th Driest
Driest since:
2021
81st Wettest
Wettest since:
1991
Ties: 1988
Nov–Dec 2020
2-Month
-1.170.10-1.2729th Driest
Driest since:
2021
102nd Wettest
Wettest since:
1913
Oct–Dec 2020
3-Month
-1.110.08-1.1927th Driest
Driest since:
1921
104th Wettest
Wettest since:
2018
Sep–Dec 2020
4-Month
-0.530.03-0.5646th Driest
Driest since:
2021
85th Wettest
Wettest since:
2018
Aug–Dec 2020
5-Month
-0.800.05-0.8528th Driest
Driest since:
1956
103rd Wettest
Wettest since:
1986
Ties: 1955
Jul–Dec 2020
6-Month
-0.810.07-0.8830th Driest
Driest since:
1954, 1956
101st Wettest
Wettest since:
1941
Jun–Dec 2020
7-Month
-0.810.09-0.9024th Driest
Driest since:
1956
107th Wettest
Wettest since:
1941
Ties: 1929
May–Dec 2020
8-Month
-0.830.06-0.8924th Driest
Driest since:
1956
107th Wettest
Wettest since:
1941
Apr–Dec 2020
9-Month
-0.850.09-0.9423rd Driest
Driest since:
2011
108th Wettest
Wettest since:
1941
Ties: 2006
Mar–Dec 2020
10-Month
-0.450.08-0.5348th Driest
Driest since:
2011
83rd Wettest
Wettest since:
1941
Ties: 1902, 1965
Feb–Dec 2020
11-Month
-0.330.06-0.3954th Driest
Driest since:
2011
77th Wettest
Wettest since:
1941
Jan–Dec 2020
12-Month
-0.240.05-0.2958th Driest
Driest since:
2011
73rd Wettest
Wettest since:
1941
Jul 2019–Dec 2020
18-Month
-0.290.06-0.3546th Driest
Driest since:
1956
84th Wettest
Wettest since:
1992
Ties: 1998
Jan 2019–Dec 2020
24-Month
0.230.060.1779th Driest
Driest since:
2012
51st Wettest
Wettest since:
1920
Ties: 1950
Jan 2018–Dec 2020
36-Month
0.110.060.0570th Driest
Driest since:
2013
59th Wettest
Wettest since:
1915, 1992
Ties: 1909, 2008
Jan 2017–Dec 2020
48-Month
0.040.07-0.0361st Driest
Driest since:
1954
67th Wettest
Wettest since:
1908
Jan 2016–Dec 2020
60-Month
0.210.070.1482nd Driest
Driest since:
1956
45th Wettest
Wettest since:
1923
Ties: 1900, 1917

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