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 1942

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
May 1942
1-Month 		1.56"
(39.62mm)		 0.92"
(23.37mm)		 0.64"
(16.25mm)		 110th Driest
Driest since:
 1924
19th Wettest
Wettest since:
 1998
Apr–May 1942
2-Month 		4.06"
(103.12mm)		 2.26"
(57.40mm)		 1.80"
(45.72mm)		 122nd Driest
Driest since:
 1909
7th Wettest
Wettest since:
 1896
Mar–May 1942
3-Month 		5.34"
(135.64mm)		 4.59"
(116.59mm)		 0.75"
(19.05mm)		 95th Driest
Driest since:
 2008
34th Wettest
Wettest since:
 1995
Feb–May 1942
4-Month 		7.82"
(198.63mm)		 7.31"
(185.67mm)		 0.51"
(12.96mm)		 83rd Driest
Driest since:
 1997
46th Wettest
Wettest since:
 1998
Jan–May 1942
5-Month 		10.40"
(264.16mm)		 10.29"
(261.37mm)		 0.11"
(2.79mm)		 78th Driest
Driest since:
 2022
51st Wettest
Wettest since:
 1998
Dec 1941–May 1942
6-Month 		15.77"
(400.56mm)		 12.84"
(326.14mm)		 2.93"
(74.42mm)		 101st Driest
Driest since:
 1924
27th Wettest
Wettest since:
 1995
Nov 1941–May 1942
7-Month 		17.28"
(438.91mm)		 14.71"
(373.63mm)		 2.57"
(65.28mm)		 96th Driest
Driest since:
 1977
32nd Wettest
Wettest since:
 1995
Oct 1941–May 1942
8-Month 		19.00"
(482.60mm)		 15.74"
(399.80mm)		 3.26"
(82.80mm)		 105th Driest
Driest since:
 1977
23rd Wettest
Wettest since:
 1983
Sep 1941–May 1942
9-Month 		19.28"
(489.71mm)		 16.23"
(412.24mm)		 3.05"
(77.47mm)		 100th Driest
Driest since:
 2021
28th Wettest
Wettest since:
 1983
Aug 1941–May 1942
10-Month 		20.17"
(512.32mm)		 16.62"
(422.15mm)		 3.55"
(90.17mm)		 105th Driest
Driest since:
 2021
23rd Wettest
Wettest since:
 1983
Jul 1941–May 1942
11-Month 		20.70"
(525.78mm)		 16.95"
(430.53mm)		 3.75"
(95.25mm)		 106th Driest
Driest since:
 2021
22nd Wettest
Wettest since:
 1983
Jun 1941–May 1942
12-Month 		21.50"
(546.10mm)		 17.44"
(442.98mm)		 4.06"
(103.12mm)		 108th Driest
Driest since:
 2021
20th Wettest
Wettest since:
 1983
Dec 1940–May 1942
18-Month 		43.20"
(1,097.28mm)		 30.25"
(768.35mm)		 12.95"
(328.93mm)		 125th Driest
Driest since:
 1977
2nd Wettest
Wettest to Date
 1983
Jun 1940–May 1942
24-Month 		46.88"
(1,190.75mm)		 34.89"
(886.21mm)		 11.99"
(304.54mm)		 123rd Driest
Driest since:
 2022
4th Wettest
Wettest to Date
 1983
Jun 1939–May 1942
36-Month 		67.24"
(1,707.90mm)		 52.30"
(1,328.42mm)		 14.94"
(379.48mm)		 124th Driest
Driest since:
 2022
2nd Wettest
Wettest to Date
 1984
Jun 1938–May 1942
48-Month 		80.63"
(2,048.00mm)		 69.56"
(1,766.82mm)		 11.07"
(281.18mm)		 111th Driest
Driest since:
 2015
14th Wettest
Wettest since:
 1998
Jun 1937–May 1942
60-Month 		105.49"
(2,679.45mm)		 86.83"
(2,205.48mm)		 18.66"
(473.97mm)		 118th Driest
Driest since:
 1933
6th Wettest
Wettest to Date
 1999

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