Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. Degree Days are not available for Great Plains, Souther Plains and Gulf Coast Rockies and Westward, River Basins, or Agricultural Belts. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

West Climate Region

Precipitation Rankings, May 2000

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PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
May 2000
1-Month		0.99"
(25.15mm)		0.92"
(23.37mm)		0.07"
(1.78mm)		82nd Driest
Driest since:
1924
47th Wettest
Wettest since:
1998
Apr–May 2000
2-Month		2.33"
(59.18mm)		2.26"
(57.40mm)		0.07"
(1.78mm)		76th Driest
Driest since:
1909
53rd Wettest
Wettest since:
1896
Ties: 1944, 2015
Mar–May 2000
3-Month		3.86"
(98.04mm)		4.59"
(116.59mm)		-0.73"
(-18.55mm)		55th Driest
Driest since:
2008
74th Wettest
Wettest since:
1995
Ties: 1922
Feb–May 2000
4-Month		8.87"
(225.30mm)		7.31"
(185.67mm)		1.56"
(39.63mm)		98th Driest
Driest since:
1997
31st Wettest
Wettest since:
1998
Jan–May 2000
5-Month		12.45"
(316.23mm)		10.29"
(261.37mm)		2.16"
(54.86mm)		99th Driest
Driest since:
2022
30th Wettest
Wettest since:
1998
Dec 1999–May 2000
6-Month		12.91"
(327.91mm)		12.84"
(326.14mm)		0.07"
(1.77mm)		76th Driest
Driest since:
1924
52nd Wettest
Wettest since:
1995
Nov 1999–May 2000
7-Month		14.30"
(363.22mm)		14.71"
(373.63mm)		-0.41"
(-10.41mm)		71st Driest
Driest since:
1977
57th Wettest
Wettest since:
1995
Oct 1999–May 2000
8-Month		14.78"
(375.41mm)		15.74"
(399.80mm)		-0.96"
(-24.39mm)		63rd Driest
Driest since:
1977
65th Wettest
Wettest since:
1983
Sep 1999–May 2000
9-Month		15.00"
(381.00mm)		16.23"
(412.24mm)		-1.23"
(-31.24mm)		59th Driest
Driest since:
2021
69th Wettest
Wettest since:
1983
Aug 1999–May 2000
10-Month		15.36"
(390.14mm)		16.62"
(422.15mm)		-1.26"
(-32.01mm)		59th Driest
Driest since:
2021
69th Wettest
Wettest since:
1983
Jul 1999–May 2000
11-Month		15.75"
(400.05mm)		16.95"
(430.53mm)		-1.20"
(-30.48mm)		59th Driest
Driest since:
2021
69th Wettest
Wettest since:
1983
Jun 1999–May 2000
12-Month		16.31"
(414.27mm)		17.44"
(442.98mm)		-1.13"
(-28.71mm)		59th Driest
Driest since:
2021
69th Wettest
Wettest since:
1983
Dec 1998–May 2000
18-Month		27.14"
(689.36mm)		30.25"
(768.35mm)		-3.11"
(-78.99mm)		44th Driest
Driest since:
1977
83rd Wettest
Wettest since:
1983
Jun 1998–May 2000
24-Month		34.02"
(864.11mm)		34.89"
(886.21mm)		-0.87"
(-22.10mm)		59th Driest
Driest since:
2022
68th Wettest
Wettest since:
1983
Jun 1997–May 2000
36-Month		62.79"
(1,594.87mm)		52.30"
(1,328.42mm)		10.49"
(266.45mm)		113th Driest
Driest since:
2022
13th Wettest
Wettest since:
1984
Jun 1996–May 2000
48-Month		81.67"
(2,074.42mm)		69.56"
(1,766.82mm)		12.11"
(307.60mm)		114th Driest
Driest since:
2015
11th Wettest
Wettest since:
1998
Jun 1995–May 2000
60-Month		100.90"
(2,562.86mm)		86.83"
(2,205.48mm)		14.07"
(357.38mm)		111th Driest
Driest since:
1933
13th Wettest
Wettest since:
1999

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