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, August 2017

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
August 2017
1-Month
0.27"
(6.86mm)
0.24"
(6.10mm)
0.03"
(0.76mm)
86th Driest
Driest since:
1937, 2002
43rd Wettest
Wettest since:
1983
Ties: 1918, 1921, 1954, 1997, 2000
Jul–Aug 2017
2-Month
0.36"
(9.14mm)
0.42"
(10.67mm)
-0.06"
(-1.53mm)
75th Driest
Driest since:
1940
54th Wettest
Wettest since:
1983
Ties: 1938, 1939, 1962
Jun–Aug 2017
3-Month
0.62"
(15.75mm)
0.77"
(19.56mm)
-0.15"
(-3.81mm)
54th Driest
Driest since:
2002
75th Wettest
Wettest since:
1913
Ties: 1972
May–Aug 2017
4-Month
1.05"
(26.67mm)
1.65"
(41.91mm)
-0.60"
(-15.24mm)
24th Driest
Driest since:
1924
105th Wettest
Wettest since:
1998
Ties: 1911, 1938
Apr–Aug 2017
5-Month
3.81"
(96.77mm)
3.29"
(83.57mm)
0.52"
(13.20mm)
95th Driest
Driest since:
2021
34th Wettest
Wettest since:
1896
Mar–Aug 2017
6-Month
6.26"
(159.00mm)
6.50"
(165.10mm)
-0.24"
(-6.10mm)
70th Driest
Driest since:
2008
59th Wettest
Wettest since:
1995
Feb–Aug 2017
7-Month
14.20"
(360.68mm)
10.35"
(262.89mm)
3.85"
(97.79mm)
114th Driest
Driest since:
1997, 2021
15th Wettest
Wettest since:
1998
Jan–Aug 2017
8-Month
24.12"
(612.65mm)
14.60"
(370.84mm)
9.52"
(241.81mm)
124th Driest
Driest since:
2022
5th Wettest
Wettest since:
1995
Dec 2016–Aug 2017
9-Month
28.61"
(726.69mm)
18.22"
(462.79mm)
10.39"
(263.90mm)
120th Driest
Driest since:
1924
8th Wettest
Wettest since:
1998
Nov 2016–Aug 2017
10-Month
30.77"
(781.56mm)
20.80"
(528.32mm)
9.97"
(253.24mm)
120th Driest
Driest since:
1924
8th Wettest
Wettest since:
1983
Oct 2016–Aug 2017
11-Month
34.59"
(878.59mm)
22.00"
(558.80mm)
12.59"
(319.79mm)
123rd Driest
Driest since:
1924
5th Wettest
Wettest since:
1983
Sep 2016–Aug 2017
12-Month
34.69"
(881.13mm)
22.44"
(569.98mm)
12.25"
(311.15mm)
123rd Driest
Driest since:
2021
5th Wettest
Wettest since:
1983
Mar 2016–Aug 2017
18-Month
42.25"
(1,073.15mm)
28.96"
(735.58mm)
13.29"
(337.57mm)
125th Driest
Driest since:
1977
3rd Wettest
Wettest since:
1983
Sep 2015–Aug 2017
24-Month
57.64"
(1,464.06mm)
44.90"
(1,140.46mm)
12.74"
(323.60mm)
117th Driest
Driest since:
1977
10th Wettest
Wettest since:
1983
Sep 2014–Aug 2017
36-Month
74.81"
(1,900.17mm)
67.31"
(1,709.67mm)
7.50"
(190.50mm)
96th Driest
Driest since:
2022
30th Wettest
Wettest since:
1984
Sep 2013–Aug 2017
48-Month
87.25"
(2,216.15mm)
89.50"
(2,273.30mm)
-2.25"
(-57.15mm)
64th Driest
Driest since:
2015
61st Wettest
Wettest since:
1998
Ties: 1902
Sep 2012–Aug 2017
60-Month
103.53"
(2,629.66mm)
111.68"
(2,836.67mm)
-8.15"
(-207.01mm)
45th Driest
Driest since:
1991
79th Wettest
Wettest since:
1999

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