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, September 1991

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Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1991
1-Month
5.51"
(139.95mm)
4.33"
(109.98mm)
1.18"
(29.97mm)
91st Driest
Driest since:
1897
38th Wettest
Wettest since:
1967
Aug–Sep 1991
2-Month
6.41"
(162.81mm)
6.54"
(166.12mm)
-0.13"
(-3.31mm)
69th Driest
Driest since:
1897
60th Wettest
Wettest since:
1967
Jul–Sep 1991
3-Month
8.25"
(209.55mm)
8.19"
(208.03mm)
0.06"
(1.52mm)
73rd Driest
Driest since:
1897
56th Wettest
Wettest since:
1967
Ties: 1985
Jun–Sep 1991
4-Month
11.56"
(293.62mm)
10.86"
(275.84mm)
0.70"
(17.78mm)
76th Driest
Driest since:
1982
53rd Wettest
Wettest since:
1967
May–Sep 1991
5-Month
16.19"
(411.23mm)
13.55"
(344.17mm)
2.64"
(67.06mm)
93rd Driest
Driest since:
1897
36th Wettest
Wettest since:
1933
Apr–Sep 1991
6-Month
20.11"
(510.79mm)
15.07"
(382.78mm)
5.04"
(128.01mm)
108th Driest
Driest since:
1897
21st Wettest
Wettest since:
1933
Mar–Sep 1991
7-Month
20.37"
(517.40mm)
16.08"
(408.43mm)
4.29"
(108.97mm)
103rd Driest
Driest since:
1897
26th Wettest
Wettest since:
1933
Feb–Sep 1991
8-Month
22.64"
(575.06mm)
17.27"
(438.66mm)
5.37"
(136.40mm)
109th Driest
Driest since:
1897
20th Wettest
Wettest since:
1933
Jan–Sep 1991
9-Month
23.39"
(594.11mm)
18.54"
(470.92mm)
4.85"
(123.19mm)
106th Driest
Driest since:
1897
23rd Wettest
Wettest since:
1973
Dec 1990–Sep 1991
10-Month
23.81"
(604.77mm)
19.87"
(504.70mm)
3.94"
(100.07mm)
96th Driest
Driest since:
1897
32nd Wettest
Wettest since:
1941
Nov 1990–Sep 1991
11-Month
24.82"
(630.43mm)
21.29"
(540.77mm)
3.53"
(89.66mm)
92nd Driest
Driest since:
1897
36th Wettest
Wettest since:
1941
Oct 1990–Sep 1991
12-Month
26.00"
(660.40mm)
23.82"
(605.03mm)
2.18"
(55.37mm)
81st Driest
Driest since:
2011
47th Wettest
Wettest since:
1941
Apr 1990–Sep 1991
18-Month
37.01"
(940.05mm)
38.87"
(987.30mm)
-1.86"
(-47.25mm)
53rd Driest
Driest since:
1898
75th Wettest
Wettest since:
1968
Oct 1989–Sep 1991
24-Month
43.68"
(1,109.47mm)
47.66"
(1,210.56mm)
-3.98"
(-101.09mm)
43rd Driest
Driest since:
1898
84th Wettest
Wettest since:
1967
Oct 1988–Sep 1991
36-Month
57.30"
(1,455.42mm)
71.32"
(1,811.53mm)
-14.02"
(-356.11mm)
15th Driest
Driest since:
1899
111th Wettest
Wettest since:
1968
Oct 1987–Sep 1991
48-Month
79.94"
(2,030.48mm)
94.84"
(2,408.94mm)
-14.90"
(-378.46mm)
18th Driest
Driest since:
1900
107th Wettest
Wettest since:
1975
Oct 1986–Sep 1991
60-Month
113.13"
(2,873.50mm)
118.21"
(3,002.53mm)
-5.08"
(-129.03mm)
43rd Driest
Driest since:
1901
81st Wettest
Wettest since:
1970

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