Divisional Rankings

Divisional Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. 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 10. Lower Valley

Precipitation Rankings, December 1999

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2021)
Wettest/Driest
Since
Record
December 1999
1-Month
0.42"
(10.67mm)
1.33"
(33.78mm)
-0.91"
(-23.11mm)
32nd Driest
Driest since:
1950
96th Wettest
Wettest since:
1937
Ties: 1987, 1990
Nov–Dec 1999
2-Month
0.80"
(20.32mm)
2.74"
(69.60mm)
-1.94"
(-49.28mm)
13th Driest
Driest since:
2010
115th Wettest
Wettest since:
2013
Oct–Dec 1999
3-Month
2.32"
(58.93mm)
5.28"
(134.11mm)
-2.96"
(-75.18mm)
15th Driest
Driest since:
2010
113th Wettest
Wettest since:
1958
Sep–Dec 1999
4-Month
6.45"
(163.83mm)
9.62"
(244.35mm)
-3.17"
(-80.52mm)
28th Driest
Driest since:
1917
100th Wettest
Wettest since:
1967
Aug–Dec 1999
5-Month
11.31"
(287.27mm)
11.82"
(300.23mm)
-0.51"
(-12.96mm)
61st Driest
Driest since:
1917
67th Wettest
Wettest since:
1967
Ties: 1970
Jul–Dec 1999
6-Month
15.24"
(387.10mm)
13.47"
(342.14mm)
1.77"
(44.96mm)
81st Driest
Driest since:
1950
47th Wettest
Wettest since:
1967
Jun–Dec 1999
7-Month
17.47"
(443.74mm)
16.14"
(409.96mm)
1.33"
(33.78mm)
79th Driest
Driest since:
1898
49th Wettest
Wettest since:
1967
May–Dec 1999
8-Month
19.47"
(494.54mm)
18.83"
(478.28mm)
0.64"
(16.26mm)
67th Driest
Driest since:
1898
61st Wettest
Wettest since:
1967
Apr–Dec 1999
9-Month
19.54"
(496.32mm)
20.35"
(516.89mm)
-0.81"
(-20.57mm)
54th Driest
Driest since:
1898
74th Wettest
Wettest since:
1967
Mar–Dec 1999
10-Month
22.08"
(560.83mm)
21.37"
(542.80mm)
0.71"
(18.03mm)
70th Driest
Driest since:
1898
58th Wettest
Wettest since:
1967
Ties: 1968
Feb–Dec 1999
11-Month
22.87"
(580.90mm)
22.56"
(573.02mm)
0.31"
(7.88mm)
67th Driest
Driest since:
1898
61st Wettest
Wettest since:
1967
Ties: 1974
Jan–Dec 1999
12-Month
23.02"
(584.71mm)
23.82"
(605.03mm)
-0.80"
(-20.32mm)
56th Driest
Driest since:
1898
72nd Wettest
Wettest since:
1967
Jul 1998–Dec 1999
18-Month
44.17"
(1,121.92mm)
37.29"
(947.17mm)
6.88"
(174.75mm)
104th Driest
Driest since:
1898
23rd Wettest
Wettest since:
1968
Jan 1998–Dec 1999
24-Month
48.72"
(1,237.49mm)
47.63"
(1,209.80mm)
1.09"
(27.69mm)
71st Driest
Driest since:
1898
56th Wettest
Wettest since:
1967
Jan 1997–Dec 1999
36-Month
77.71"
(1,973.83mm)
71.38"
(1,813.05mm)
6.33"
(160.78mm)
88th Driest
Driest since:
1899
38th Wettest
Wettest since:
1968
Jan 1996–Dec 1999
48-Month
94.80"
(2,407.92mm)
94.95"
(2,411.73mm)
-0.15"
(-3.81mm)
66th Driest
Driest since:
1900
59th Wettest
Wettest since:
1976
Jan 1995–Dec 1999
60-Month
120.13"
(3,051.30mm)
118.33"
(3,005.58mm)
1.80"
(45.72mm)
68th Driest
Driest since:
1901
56th Wettest
Wettest since:
1976

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