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 1978

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1978
1-Month
6.53"
(165.86mm)
4.33"
(109.98mm)
2.20"
(55.88mm)
101st Driest
Driest since:
1897
28th Wettest
Wettest since:
1967
Aug–Sep 1978
2-Month
9.19"
(233.43mm)
6.54"
(166.12mm)
2.65"
(67.31mm)
104th Driest
Driest since:
1897
25th Wettest
Wettest since:
1967
Jul–Sep 1978
3-Month
10.40"
(264.16mm)
8.19"
(208.03mm)
2.21"
(56.13mm)
93rd Driest
Driest since:
1897
36th Wettest
Wettest since:
1967
Ties: 1988
Jun–Sep 1978
4-Month
12.73"
(323.34mm)
10.86"
(275.84mm)
1.87"
(47.50mm)
89th Driest
Driest since:
1982
40th Wettest
Wettest since:
1967
May–Sep 1978
5-Month
13.05"
(331.47mm)
13.55"
(344.17mm)
-0.50"
(-12.70mm)
63rd Driest
Driest since:
1897
66th Wettest
Wettest since:
1933
Apr–Sep 1978
6-Month
14.22"
(361.19mm)
15.07"
(382.78mm)
-0.85"
(-21.59mm)
63rd Driest
Driest since:
1897
66th Wettest
Wettest since:
1933
Mar–Sep 1978
7-Month
14.24"
(361.70mm)
16.08"
(408.43mm)
-1.84"
(-46.73mm)
50th Driest
Driest since:
1897
79th Wettest
Wettest since:
1933
Feb–Sep 1978
8-Month
15.10"
(383.54mm)
17.27"
(438.66mm)
-2.17"
(-55.12mm)
48th Driest
Driest since:
1897
81st Wettest
Wettest since:
1933
Jan–Sep 1978
9-Month
18.19"
(462.03mm)
18.54"
(470.92mm)
-0.35"
(-8.89mm)
69th Driest
Driest since:
1897
60th Wettest
Wettest since:
1973
Dec 1977–Sep 1978
10-Month
18.30"
(464.82mm)
19.87"
(504.70mm)
-1.57"
(-39.88mm)
58th Driest
Driest since:
1897
70th Wettest
Wettest since:
1941
Ties: 1957
Nov 1977–Sep 1978
11-Month
19.96"
(506.98mm)
21.29"
(540.77mm)
-1.33"
(-33.79mm)
60th Driest
Driest since:
1897
68th Wettest
Wettest since:
1941
Oct 1977–Sep 1978
12-Month
21.68"
(550.67mm)
23.82"
(605.03mm)
-2.14"
(-54.36mm)
55th Driest
Driest since:
2011
73rd Wettest
Wettest since:
1941
Apr 1977–Sep 1978
18-Month
36.66"
(931.16mm)
38.87"
(987.30mm)
-2.21"
(-56.14mm)
52nd Driest
Driest since:
1898
76th Wettest
Wettest since:
1968
Oct 1976–Sep 1978
24-Month
52.43"
(1,331.72mm)
47.66"
(1,210.56mm)
4.77"
(121.16mm)
91st Driest
Driest since:
1898
36th Wettest
Wettest since:
1967
Oct 1975–Sep 1978
36-Month
79.75"
(2,025.65mm)
71.32"
(1,811.53mm)
8.43"
(214.12mm)
92nd Driest
Driest since:
1899
34th Wettest
Wettest since:
1968
Oct 1974–Sep 1978
48-Month
112.95"
(2,868.93mm)
94.84"
(2,408.94mm)
18.11"
(459.99mm)
112th Driest
Driest since:
1900
13th Wettest
Wettest since:
1975
Oct 1973–Sep 1978
60-Month
136.89"
(3,477.01mm)
118.21"
(3,002.53mm)
18.68"
(474.48mm)
107th Driest
Driest since:
1901
17th Wettest
Wettest since:
1970

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