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, April 2019

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  • Record Wettest
PeriodValue1901-2000
Mean		AnomalyRank
(1895-2023)		Wettest/Driest
Since		Record
April 2019
1-Month		1.23"
(31.24mm)		1.33"
(33.78mm)		-0.10"
(-2.54mm)		67th Driest
Driest since:
1909
63rd Wettest
Wettest since:
1935
Ties: 1976, 2022
Mar–Apr 2019
2-Month		4.48"
(113.79mm)		3.67"
(93.22mm)		0.81"
(20.57mm)		95th Driest
Driest since:
2008
35th Wettest
Wettest since:
1983
Ties: 1918
Feb–Apr 2019
3-Month		10.51"
(266.95mm)		6.39"
(162.31mm)		4.12"
(104.64mm)		121st Driest
Driest since:
1997
9th Wettest
Wettest since:
1983
Jan–Apr 2019
4-Month		14.13"
(358.90mm)		9.37"
(238.00mm)		4.76"
(120.90mm)		116th Driest
Driest since:
2022
14th Wettest
Wettest since:
1995
Dec 2018–Apr 2019
5-Month		15.92"
(404.37mm)		11.92"
(302.77mm)		4.00"
(101.60mm)		110th Driest
Driest since:
1977
19th Wettest
Wettest since:
1978
Nov 2018–Apr 2019
6-Month		17.90"
(454.66mm)		13.79"
(350.27mm)		4.11"
(104.39mm)		110th Driest
Driest since:
1977
19th Wettest
Wettest since:
1983
Oct 2018–Apr 2019
7-Month		18.76"
(476.50mm)		14.82"
(376.43mm)		3.94"
(100.07mm)		109th Driest
Driest since:
1977
20th Wettest
Wettest since:
1983
Ties: 1986
Sep 2018–Apr 2019
8-Month		18.81"
(477.77mm)		15.31"
(388.87mm)		3.50"
(88.90mm)		103rd Driest
Driest since:
1977
26th Wettest
Wettest since:
1983
Aug 2018–Apr 2019
9-Month		18.92"
(480.57mm)		15.70"
(398.78mm)		3.22"
(81.79mm)		102nd Driest
Driest since:
1977
27th Wettest
Wettest since:
1983
Jul 2018–Apr 2019
10-Month		19.34"
(491.24mm)		16.03"
(407.16mm)		3.31"
(84.08mm)		104th Driest
Driest since:
2021
25th Wettest
Wettest since:
1983
Jun 2018–Apr 2019
11-Month		19.44"
(493.78mm)		16.52"
(419.61mm)		2.92"
(74.17mm)		101st Driest
Driest since:
2021
28th Wettest
Wettest since:
1983
May 2018–Apr 2019
12-Month		20.44"
(519.18mm)		17.44"
(442.98mm)		3.00"
(76.20mm)		102nd Driest
Driest since:
1977
27th Wettest
Wettest since:
1983
Nov 2017–Apr 2019
18-Month		30.96"
(786.38mm)		31.22"
(792.99mm)		-0.26"
(-6.61mm)		65th Driest
Driest since:
1977
63rd Wettest
Wettest since:
1983
May 2017–Apr 2019
24-Month		33.45"
(849.63mm)		34.90"
(886.46mm)		-1.45"
(-36.83mm)		55th Driest
Driest since:
1977
73rd Wettest
Wettest since:
1983
May 2016–Apr 2019
36-Month		59.29"
(1,505.97mm)		52.30"
(1,328.42mm)		6.99"
(177.55mm)		108th Driest
Driest since:
2022
19th Wettest
Wettest since:
1984
May 2015–Apr 2019
48-Month		78.97"
(2,005.84mm)		69.56"
(1,766.82mm)		9.41"
(239.02mm)		107th Driest
Driest since:
2015
19th Wettest
Wettest since:
1998
May 2014–Apr 2019
60-Month		92.17"
(2,341.12mm)		86.83"
(2,205.48mm)		5.34"
(135.64mm)		94th Driest
Driest since:
1933
31st Wettest
Wettest since:
1999

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