National Rankings

National Data Info
Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Contiguous U.S.

Precipitation Rankings, March 1999

View Period (Months):
Download: CSV JSON XML
  • Record Driest
  • Bottom ⅒
  • Bottom ⅓
  • Normal
  • Top ⅓
  • Top ⅒
  • Record Wettest
Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
March 1999
1-Month 		2.19"
(55.63mm)		 2.51"
(63.75mm)		 -0.32"
(-8.12mm)		 33rd Driest
Driest since:
 1910
96th Wettest
Wettest since:
 1973
Feb–Mar 1999
2-Month 		4.11"
(104.39mm)		 4.64"
(117.86mm)		 -0.53"
(-13.47mm)		 27th Driest
Driest since:
 1910
102nd Wettest
Wettest since:
 1998
Jan–Mar 1999
3-Month 		7.24"
(183.90mm)		 6.96"
(176.78mm)		 0.28"
(7.12mm)		 86th Driest
Driest since:
 1910
43rd Wettest
Wettest since:
 1998
Ties: 1912
Dec 1998–Mar 1999
4-Month 		9.32"
(236.73mm)		 9.30"
(236.22mm)		 0.02"
(0.51mm)		 67th Driest
Driest since:
 1981
61st Wettest
Wettest since:
 1983, 1998
Ties: 1961
Nov 1998–Mar 1999
5-Month 		11.95"
(303.53mm)		 11.53"
(292.86mm)		 0.42"
(10.67mm)		 86th Driest
Driest since:
 1977
42nd Wettest
Wettest since:
 1983
Ties: 1937
Oct 1998–Mar 1999
6-Month 		14.92"
(378.97mm)		 13.70"
(347.98mm)		 1.22"
(30.99mm)		 99th Driest
Driest since:
 1918
29th Wettest
Wettest since:
 1983
Ties: 1987
Sep 1998–Mar 1999
7-Month 		17.43"
(442.72mm)		 16.19"
(411.23mm)		 1.24"
(31.49mm)		 100th Driest
Driest since:
 1918
28th Wettest
Wettest since:
 2019
Ties: 1986
Aug 1998–Mar 1999
8-Month 		19.85"
(504.19mm)		 18.82"
(478.03mm)		 1.03"
(26.16mm)		 92nd Driest
Driest since:
 1918
36th Wettest
Wettest since:
 2019
Jul 1998–Mar 1999
9-Month 		22.71"
(576.83mm)		 21.60"
(548.64mm)		 1.11"
(28.19mm)		 91st Driest
Driest since:
 1918
37th Wettest
Wettest since:
 2019
Jun 1998–Mar 1999
10-Month 		26.03"
(661.16mm)		 24.53"
(623.06mm)		 1.50"
(38.10mm)		 100th Driest
Driest since:
 1918
28th Wettest
Wettest since:
 2019
May 1998–Mar 1999
11-Month 		28.65"
(727.71mm)		 27.43"
(696.72mm)		 1.22"
(30.99mm)		 88th Driest
Driest since:
 1918
40th Wettest
Wettest since:
 2019
Apr 1998–Mar 1999
12-Month 		31.22"
(792.99mm)		 29.96"
(760.98mm)		 1.26"
(32.01mm)		 91st Driest
Driest since:
 1918
37th Wettest
Wettest since:
 2016
Oct 1997–Mar 1999
18-Month 		48.25"
(1,225.55mm)		 43.68"
(1,109.47mm)		 4.57"
(116.08mm)		 117th Driest
Driest since:
 1918
10th Wettest
Wettest since:
 2020
Apr 1997–Mar 1999
24-Month 		65.35"
(1,659.89mm)		 59.92"
(1,521.97mm)		 5.43"
(137.92mm)		 116th Driest
Driest since:
 1955
11th Wettest
Wettest since:
 2020
Apr 1996–Mar 1999
36-Month 		99.74"
(2,533.40mm)		 89.87"
(2,282.70mm)		 9.87"
(250.70mm)		 122nd Driest
Driest since:
 1955
4th Wettest
Wettest since:
 2020
Apr 1995–Mar 1999
48-Month 		131.61"
(3,342.89mm)		 119.76"
(3,041.90mm)		 11.85"
(300.99mm)		 121st Driest
Driest since:
 1957
4th Wettest
Wettest since:
 2019
Apr 1994–Mar 1999
60-Month 		163.25"
(4,146.55mm)		 149.62"
(3,800.35mm)		 13.63"
(346.20mm)		 120th Driest
Driest since:
 1957
4th Wettest
Wettest to Date
 2020

Citing This Page