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 1999

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
October 1999
1-Month		0.71"
(18.03mm)		1.20"
(30.48mm)		-0.49"
(-12.45mm)		47th Driest
Driest since:
1917
82nd Wettest
Wettest since:
1962
Sep–Oct 1999
2-Month		0.89"
(22.61mm)		1.65"
(41.91mm)		-0.76"
(-19.30mm)		32nd Driest
Driest since:
2020
97th Wettest
Wettest since:
1962
Aug–Oct 1999
3-Month		1.10"
(27.94mm)		1.89"
(48.01mm)		-0.79"
(-20.07mm)		33rd Driest
Driest since:
1995, 2002
96th Wettest
Wettest since:
1962
Jul–Oct 1999
4-Month		1.41"
(35.81mm)		2.07"
(52.58mm)		-0.66"
(-16.77mm)		36th Driest
Driest since:
2002, 2020
93rd Wettest
Wettest since:
1962
Jun–Oct 1999
5-Month		1.66"
(42.16mm)		2.42"
(61.47mm)		-0.76"
(-19.31mm)		29th Driest
Driest since:
2002
100th Wettest
Wettest since:
1982
May–Oct 1999
6-Month		1.99"
(50.55mm)		3.30"
(83.82mm)		-1.31"
(-33.27mm)		15th Driest
Driest since:
2002
114th Wettest
Wettest since:
1957
Ties: 1910
Apr–Oct 1999
7-Month		3.86"
(98.04mm)		4.93"
(125.22mm)		-1.07"
(-27.18mm)		29th Driest
Driest since:
2002
100th Wettest
Wettest since:
1963
Mar–Oct 1999
8-Month		6.26"
(159.00mm)		8.14"
(206.76mm)		-1.88"
(-47.76mm)		33rd Driest
Driest since:
2008
96th Wettest
Wettest since:
1983
Feb–Oct 1999
9-Month		11.24"
(285.50mm)		11.99"
(304.55mm)		-0.75"
(-19.05mm)		62nd Driest
Driest since:
1966
67th Wettest
Wettest since:
1998
Ties: 1981
Jan–Oct 1999
10-Month		14.78"
(375.41mm)		16.24"
(412.50mm)		-1.46"
(-37.09mm)		62nd Driest
Driest since:
2022
67th Wettest
Wettest since:
1998
Dec 1998–Oct 1999
11-Month		16.43"
(417.32mm)		19.87"
(504.70mm)		-3.44"
(-87.38mm)		44th Driest
Driest since:
1977
84th Wettest
Wettest since:
1983
Nov 1998–Oct 1999
12-Month		20.77"
(527.56mm)		22.44"
(569.98mm)		-1.67"
(-42.42mm)		59th Driest
Driest since:
1977
69th Wettest
Wettest since:
1983
May 1998–Oct 1999
18-Month		26.40"
(670.56mm)		25.75"
(654.05mm)		0.65"
(16.51mm)		75th Driest
Driest since:
1977
53rd Wettest
Wettest since:
1983
Nov 1997–Oct 1999
24-Month		58.10"
(1,475.74mm)		44.87"
(1,139.70mm)		13.23"
(336.04mm)		119th Driest
Driest since:
1977
8th Wettest
Wettest since:
1983
Nov 1996–Oct 1999
36-Month		84.10"
(2,136.14mm)		67.29"
(1,709.17mm)		16.81"
(426.97mm)		119th Driest
Driest since:
2022
7th Wettest
Wettest since:
1984
Nov 1995–Oct 1999
48-Month		110.44"
(2,805.18mm)		89.47"
(2,272.54mm)		20.97"
(532.64mm)		117th Driest
Driest since:
2015
8th Wettest
Wettest since:
1998
Nov 1994–Oct 1999
60-Month		146.04"
(3,709.42mm)		111.65"
(2,835.91mm)		34.39"
(873.51mm)		123rd Driest
Driest since:
1991
1st Wettest
Wettest to Date
1999

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