Statewide Rankings

Statewide 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.

California

Precipitation Rankings, September 1917

View Period (Months):
Download: csv json xml
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1917
1-Month
0.19"
(4.83mm)
0.45"
(11.43mm)
-0.26"
(-6.60mm)
43rd Driest
Driest since:
1974
86th Wettest
Wettest since:
1918
Ties: 1927, 1932
Aug–Sep 1917
2-Month
0.41"
(10.41mm)
0.69"
(17.53mm)
-0.28"
(-7.12mm)
48th Driest
Driest since:
1937, 2018
81st Wettest
Wettest since:
1983
Ties: 2015
Jul–Sep 1917
3-Month
0.63"
(16.00mm)
0.87"
(22.10mm)
-0.24"
(-6.10mm)
47th Driest
Driest since:
1928
82nd Wettest
Wettest since:
1976
Ties: 2001
Jun–Sep 1917
4-Month
0.65"
(16.51mm)
1.22"
(30.99mm)
-0.57"
(-14.48mm)
23rd Driest
Driest since:
2002
106th Wettest
Wettest since:
1982
May–Sep 1917
5-Month
1.48"
(37.59mm)
2.10"
(53.34mm)
-0.62"
(-15.75mm)
30th Driest
Driest since:
1924
99th Wettest
Wettest since:
1998
Ties: 1940, 2017
Apr–Sep 1917
6-Month
3.00"
(76.20mm)
3.74"
(95.00mm)
-0.74"
(-18.80mm)
41st Driest
Driest since:
1924
88th Wettest
Wettest since:
1896
Mar–Sep 1917
7-Month
4.37"
(111.00mm)
6.95"
(176.53mm)
-2.58"
(-65.53mm)
16th Driest
Driest since:
2008
113th Wettest
Wettest since:
1995
Feb–Sep 1917
8-Month
8.95"
(227.33mm)
10.80"
(274.32mm)
-1.85"
(-46.99mm)
55th Driest
Driest since:
2021
74th Wettest
Wettest since:
1998
Jan–Sep 1917
9-Month
11.46"
(291.08mm)
15.05"
(382.27mm)
-3.59"
(-91.19mm)
41st Driest
Driest since:
2022
88th Wettest
Wettest since:
1998
Dec 1916–Sep 1917
10-Month
15.75"
(400.05mm)
18.67"
(474.22mm)
-2.92"
(-74.17mm)
49th Driest
Driest since:
1924
79th Wettest
Wettest since:
1983
Nov 1916–Sep 1917
11-Month
17.14"
(435.36mm)
21.25"
(539.75mm)
-4.11"
(-104.39mm)
46th Driest
Driest since:
1924
82nd Wettest
Wettest since:
1983
Oct 1916–Sep 1917
12-Month
18.68"
(474.47mm)
22.45"
(570.23mm)
-3.77"
(-95.76mm)
48th Driest
Driest since:
1924
80th Wettest
Wettest since:
1983
Ties: 1944
Apr 1916–Sep 1917
18-Month
21.21"
(538.73mm)
26.19"
(665.23mm)
-4.98"
(-126.50mm)
38th Driest
Driest since:
2021
90th Wettest
Wettest since:
1983
Oct 1915–Sep 1917
24-Month
43.76"
(1,111.50mm)
44.90"
(1,140.46mm)
-1.14"
(-28.96mm)
62nd Driest
Driest since:
1977
65th Wettest
Wettest since:
1983
Oct 1914–Sep 1917
36-Month
70.64"
(1,794.26mm)
67.32"
(1,709.93mm)
3.32"
(84.33mm)
83rd Driest
Driest since:
2022
43rd Wettest
Wettest since:
1984
Oct 1913–Sep 1917
48-Month
99.79"
(2,534.67mm)
89.51"
(2,273.55mm)
10.28"
(261.12mm)
102nd Driest
Driest since:
2015
23rd Wettest
Wettest since:
1998
Oct 1912–Sep 1917
60-Month
116.46"
(2,958.08mm)
111.69"
(2,836.93mm)
4.77"
(121.15mm)
83rd Driest
Driest since:
1991
41st Wettest
Wettest since:
1999

Citing This Page