Regional Rankings

Regional Data Info
Please note, Palmer Indices are not available for NWS Regions. 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, August 1999

View Period (Months):
Download: csv json xml
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
August 1999
1-Month
2.84"
(72.14mm)
2.02"
(51.31mm)
0.82"
(20.83mm)
122nd Driest
Driest since:
1962
7th Wettest
Wettest since:
1963
Jul–Aug 1999
2-Month
5.61"
(142.49mm)
3.89"
(98.81mm)
1.72"
(43.68mm)
127th Driest
Driest since:
2020
2nd Wettest
Wettest since:
1921
Jun–Aug 1999
3-Month
6.78"
(172.21mm)
4.83"
(122.68mm)
1.95"
(49.53mm)
126th Driest
Driest since:
2020
3rd Wettest
Wettest since:
1921
May–Aug 1999
4-Month
8.18"
(207.77mm)
5.94"
(150.88mm)
2.24"
(56.89mm)
125th Driest
Driest since:
2020
4th Wettest
Wettest since:
1921
Apr–Aug 1999
5-Month
10.56"
(268.22mm)
7.00"
(177.80mm)
3.56"
(90.42mm)
128th Driest
Driest since:
2020
1st Wettest
Wettest to Date
1999
Mar–Aug 1999
6-Month
11.12"
(282.45mm)
8.15"
(207.01mm)
2.97"
(75.44mm)
127th Driest
Driest since:
2002
2nd Wettest
Wettest since:
1941
Feb–Aug 1999
7-Month
11.58"
(294.13mm)
9.16"
(232.66mm)
2.42"
(61.47mm)
124th Driest
Driest since:
2002
5th Wettest
Wettest since:
1941
Jan–Aug 1999
8-Month
12.24"
(310.90mm)
10.14"
(257.56mm)
2.10"
(53.34mm)
118th Driest
Driest since:
2002
11th Wettest
Wettest since:
1941
Dec 1998–Aug 1999
9-Month
12.73"
(323.34mm)
11.15"
(283.21mm)
1.58"
(40.13mm)
107th Driest
Driest since:
2002
21st Wettest
Wettest since:
1941
Nov 1998–Aug 1999
10-Month
13.72"
(348.49mm)
12.04"
(305.82mm)
1.68"
(42.67mm)
107th Driest
Driest since:
2002
21st Wettest
Wettest since:
1941
Oct 1998–Aug 1999
11-Month
16.03"
(407.16mm)
13.17"
(334.52mm)
2.86"
(72.64mm)
115th Driest
Driest since:
2002
13th Wettest
Wettest since:
1941
Sep 1998–Aug 1999
12-Month
17.21"
(437.13mm)
14.54"
(369.32mm)
2.67"
(67.81mm)
110th Driest
Driest since:
2002
18th Wettest
Wettest since:
1941
Mar 1998–Aug 1999
18-Month
25.79"
(655.07mm)
22.69"
(576.33mm)
3.10"
(78.74mm)
109th Driest
Driest since:
2002
19th Wettest
Wettest since:
1942
Sep 1997–Aug 1999
24-Month
34.24"
(869.70mm)
29.09"
(738.89mm)
5.15"
(130.81mm)
116th Driest
Driest since:
2003
11th Wettest
Wettest since:
1942
Sep 1996–Aug 1999
36-Month
50.84"
(1,291.34mm)
43.58"
(1,106.93mm)
7.26"
(184.41mm)
117th Driest
Driest since:
1956
9th Wettest
Wettest since:
1907
Sep 1995–Aug 1999
48-Month
62.88"
(1,597.15mm)
58.05"
(1,474.47mm)
4.83"
(122.68mm)
104th Driest
Driest since:
1956
21st Wettest
Wettest since:
1986
Sep 1994–Aug 1999
60-Month
80.39"
(2,041.91mm)
72.53"
(1,842.26mm)
7.86"
(199.65mm)
114th Driest
Driest since:
2004
10th Wettest
Wettest since:
1987

Citing This Page