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, October 2009

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 2009
1-Month
2.07"
(52.58mm)
1.20"
(30.48mm)
0.87"
(22.10mm)
107th Driest
Driest since:
1917
22nd Wettest
Wettest since:
1962
Sep–Oct 2009
2-Month
2.16"
(54.86mm)
1.65"
(41.91mm)
0.51"
(12.95mm)
96th Driest
Driest since:
2020
33rd Wettest
Wettest since:
1962
Aug–Oct 2009
3-Month
2.28"
(57.91mm)
1.89"
(48.01mm)
0.39"
(9.90mm)
87th Driest
Driest since:
1995, 2002
42nd Wettest
Wettest since:
1962
Ties: 1939
Jul–Oct 2009
4-Month
2.33"
(59.18mm)
2.07"
(52.58mm)
0.26"
(6.60mm)
80th Driest
Driest since:
2002, 2020
49th Wettest
Wettest since:
1962
Ties: 1938
Jun–Oct 2009
5-Month
2.93"
(74.42mm)
2.42"
(61.47mm)
0.51"
(12.95mm)
94th Driest
Driest since:
2002
35th Wettest
Wettest since:
1982
Ties: 1931
May–Oct 2009
6-Month
4.17"
(105.92mm)
3.30"
(83.82mm)
0.87"
(22.10mm)
101st Driest
Driest since:
2002
28th Wettest
Wettest since:
1957
Apr–Oct 2009
7-Month
4.74"
(120.40mm)
4.93"
(125.22mm)
-0.19"
(-4.82mm)
68th Driest
Driest since:
2002
61st Wettest
Wettest since:
1963
Mar–Oct 2009
8-Month
7.00"
(177.80mm)
8.14"
(206.76mm)
-1.14"
(-28.96mm)
60th Driest
Driest since:
2008
69th Wettest
Wettest since:
1983
Feb–Oct 2009
9-Month
11.64"
(295.66mm)
11.99"
(304.55mm)
-0.35"
(-8.89mm)
68th Driest
Driest since:
1966
61st Wettest
Wettest since:
1998
Jan–Oct 2009
10-Month
12.91"
(327.91mm)
16.24"
(412.50mm)
-3.33"
(-84.59mm)
42nd Driest
Driest since:
2022
87th Wettest
Wettest since:
1998
Dec 2008–Oct 2009
11-Month
15.96"
(405.38mm)
19.87"
(504.70mm)
-3.91"
(-99.32mm)
38th Driest
Driest since:
1977
90th Wettest
Wettest since:
1983
Nov 2008–Oct 2009
12-Month
18.37"
(466.60mm)
22.44"
(569.98mm)
-4.07"
(-103.38mm)
44th Driest
Driest since:
1977
84th Wettest
Wettest since:
1983
Ties: 1966
May 2008–Oct 2009
18-Month
19.94"
(506.48mm)
25.75"
(654.05mm)
-5.81"
(-147.57mm)
33rd Driest
Driest since:
1977
95th Wettest
Wettest since:
1983
Nov 2007–Oct 2009
24-Month
34.79"
(883.67mm)
44.87"
(1,139.70mm)
-10.08"
(-256.03mm)
23rd Driest
Driest since:
1977
104th Wettest
Wettest since:
1983
Nov 2006–Oct 2009
36-Month
49.80"
(1,264.92mm)
67.29"
(1,709.17mm)
-17.49"
(-444.25mm)
6th Driest
Driest since:
2022
120th Wettest
Wettest since:
1984
Nov 2005–Oct 2009
48-Month
78.27"
(1,988.06mm)
89.47"
(2,272.54mm)
-11.20"
(-284.48mm)
24th Driest
Driest since:
2015
101st Wettest
Wettest since:
1998
Nov 2004–Oct 2009
60-Month
105.49"
(2,679.45mm)
111.65"
(2,835.91mm)
-6.16"
(-156.46mm)
52nd Driest
Driest since:
1991
72nd Wettest
Wettest since:
1999

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