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 1986

View Period (Months):
Download: CSV JSON XML
  • Record Driest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2022)		Wettest/Driest
Since		Record
May 1986
1-Month		0.67"
(17.02mm)		0.92"
(23.37mm)		-0.25"
(-6.35mm)		55th Driest
Driest since:
1924
74th Wettest
Wettest since:
1998
Ties: 1944
Apr–May 1986
2-Month		1.75"
(44.45mm)		2.26"
(57.40mm)		-0.51"
(-12.95mm)		48th Driest
Driest since:
1909
81st Wettest
Wettest since:
1896
Ties: 2009
Mar–May 1986
3-Month		5.01"
(127.25mm)		4.59"
(116.59mm)		0.42"
(10.66mm)		83rd Driest
Driest since:
2008
46th Wettest
Wettest since:
1995
Feb–May 1986
4-Month		11.40"
(289.56mm)		7.31"
(185.67mm)		4.09"
(103.89mm)		118th Driest
Driest since:
1997
11th Wettest
Wettest since:
1998
Jan–May 1986
5-Month		13.89"
(352.81mm)		10.29"
(261.37mm)		3.60"
(91.44mm)		109th Driest
Driest since:
2022
20th Wettest
Wettest since:
1998
Dec 1985–May 1986
6-Month		15.42"
(391.67mm)		12.84"
(326.14mm)		2.58"
(65.53mm)		99th Driest
Driest since:
1924
29th Wettest
Wettest since:
1995
Nov 1985–May 1986
7-Month		18.45"
(468.63mm)		14.71"
(373.63mm)		3.74"
(95.00mm)		106th Driest
Driest since:
1977
22nd Wettest
Wettest since:
1995
Oct 1985–May 1986
8-Month		19.43"
(493.52mm)		15.74"
(399.80mm)		3.69"
(93.72mm)		106th Driest
Driest since:
1977
22nd Wettest
Wettest since:
1983
Sep 1985–May 1986
9-Month		20.46"
(519.68mm)		16.23"
(412.24mm)		4.23"
(107.44mm)		108th Driest
Driest since:
2021
20th Wettest
Wettest since:
1983
Aug 1985–May 1986
10-Month		20.52"
(521.21mm)		16.62"
(422.15mm)		3.90"
(99.06mm)		106th Driest
Driest since:
2021
22nd Wettest
Wettest since:
1983
Jul 1985–May 1986
11-Month		21.06"
(534.92mm)		16.95"
(430.53mm)		4.11"
(104.39mm)		107th Driest
Driest since:
2021
21st Wettest
Wettest since:
1983
Jun 1985–May 1986
12-Month		21.28"
(540.51mm)		17.44"
(442.98mm)		3.84"
(97.53mm)		106th Driest
Driest since:
2021
22nd Wettest
Wettest since:
1983
Dec 1984–May 1986
18-Month		28.33"
(719.58mm)		30.25"
(768.35mm)		-1.92"
(-48.77mm)		50th Driest
Driest since:
1977
77th Wettest
Wettest since:
1983
Jun 1984–May 1986
24-Month		37.07"
(941.58mm)		34.89"
(886.21mm)		2.18"
(55.37mm)		89th Driest
Driest since:
2022
38th Wettest
Wettest since:
1983
Jun 1983–May 1986
36-Month		56.19"
(1,427.23mm)		52.30"
(1,328.42mm)		3.89"
(98.81mm)		91st Driest
Driest since:
2022
35th Wettest
Wettest since:
1984
Jun 1982–May 1986
48-Month		86.67"
(2,201.42mm)		69.56"
(1,766.82mm)		17.11"
(434.60mm)		121st Driest
Driest since:
2015
4th Wettest
Wettest since:
1998
Jun 1981–May 1986
60-Month		108.88"
(2,765.55mm)		86.83"
(2,205.48mm)		22.05"
(560.07mm)		122nd Driest
Driest since:
1933
2nd Wettest
Wettest to Date
1999

Citing This Page