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.

Southwest Climate Region

Precipitation Rankings, May 1915

View Period (Months):
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  • Record Wettest
PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Wettest/Driest
Since
Record
May 1915
1-Month
1.48"
(37.59mm)
1.11"
(28.19mm)
0.37"
(9.40mm)
108th Driest
Driest since:
1974
22nd Wettest
Wettest since:
2015
Ties: 1949
Apr–May 1915
2-Month
4.01"
(101.85mm)
2.17"
(55.12mm)
1.84"
(46.73mm)
128th Driest
Driest since:
2002
2nd Wettest
Wettest to Date
1941
Mar–May 1915
3-Month
4.93"
(125.22mm)
3.33"
(84.58mm)
1.60"
(40.64mm)
123rd Driest
Driest since:
2002
7th Wettest
Wettest since:
1941
Feb–May 1915
4-Month
6.52"
(165.61mm)
4.33"
(109.98mm)
2.19"
(55.63mm)
127th Driest
Driest since:
2002
3rd Wettest
Wettest since:
1905
Jan–May 1915
5-Month
7.94"
(201.68mm)
5.31"
(134.87mm)
2.63"
(66.81mm)
125th Driest
Driest since:
1972
5th Wettest
Wettest since:
1905
Dec 1914–May 1915
6-Month
9.68"
(245.87mm)
6.32"
(160.53mm)
3.36"
(85.34mm)
125th Driest
Driest since:
2002
4th Wettest
Wettest since:
1905
Nov 1914–May 1915
7-Month
10.02"
(254.51mm)
7.21"
(183.13mm)
2.81"
(71.38mm)
119th Driest
Driest since:
2002
10th Wettest
Wettest since:
1941
Ties: 1907
Oct 1914–May 1915
8-Month
12.20"
(309.88mm)
8.34"
(211.84mm)
3.86"
(98.04mm)
123rd Driest
Driest since:
2002
6th Wettest
Wettest since:
1941
Sep 1914–May 1915
9-Month
12.91"
(327.91mm)
9.71"
(246.63mm)
3.20"
(81.28mm)
119th Driest
Driest since:
2002
10th Wettest
Wettest since:
1941
Aug 1914–May 1915
10-Month
14.74"
(374.40mm)
11.72"
(297.69mm)
3.02"
(76.71mm)
116th Driest
Driest since:
2002
13th Wettest
Wettest since:
1941
Jul 1914–May 1915
11-Month
18.12"
(460.25mm)
13.59"
(345.19mm)
4.53"
(115.06mm)
125th Driest
Driest since:
2021
4th Wettest
Wettest since:
1941
Jun 1914–May 1915
12-Month
19.58"
(497.33mm)
14.53"
(369.06mm)
5.05"
(128.27mm)
124th Driest
Driest since:
2021
5th Wettest
Wettest since:
1905
Dec 1913–May 1915
18-Month
27.06"
(687.32mm)
20.86"
(529.84mm)
6.20"
(157.48mm)
125th Driest
Driest since:
2021
3rd Wettest
Wettest since:
1942
Jun 1913–May 1915
24-Month
35.54"
(902.72mm)
29.05"
(737.87mm)
6.49"
(164.85mm)
123rd Driest
Driest since:
2021
5th Wettest
Wettest since:
1942
Jun 1912–May 1915
36-Month
49.10"
(1,247.14mm)
43.54"
(1,105.92mm)
5.56"
(141.22mm)
113th Driest
Driest since:
2022
14th Wettest
Wettest since:
1907
Jun 1911–May 1915
48-Month
65.11"
(1,653.79mm)
58.01"
(1,473.45mm)
7.10"
(180.34mm)
116th Driest
Driest since:
1904
10th Wettest
Wettest since:
1986
Jun 1910–May 1915
60-Month
79.00"
(2,006.60mm)
72.48"
(1,840.99mm)
6.52"
(165.61mm)
111th Driest
Driest since:
1957
14th Wettest
Wettest since:
1987

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