Climate at a Glance

National Rankings

Look up monthly rankings for 1-12, 18, 24, 36, 48, and 60-month time periods using the options below. Data and statistics are as of March 2021. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, October 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
October 1999
1-Month
1.57"
(39.88mm)
2.16"
(54.86mm)
-0.59"
(-14.98mm)
19th Driest Driest since: 1988 1952
108th Wettest Wettest since: 1998 2009
Sep–Oct 1999
2-Month
4.09"
(103.89mm)
4.65"
(118.11mm)
-0.56"
(-14.22mm)
29th Driest Driest since: 1992 1952
98th Wettest Wettest since: 1998 2018
Ties: 1901
Aug–Oct 1999
3-Month
6.39"
(162.31mm)
7.27"
(184.66mm)
-0.88"
(-22.35mm)
18th Driest Driest since: 1987 1952
109th Wettest Wettest since: 1998 2018
Jul–Oct 1999
4-Month
8.97"
(227.84mm)
10.05"
(255.27mm)
-1.08"
(-27.43mm)
18th Driest Driest since: 1987 1952
109th Wettest Wettest since: 1998 1941
Jun–Oct 1999
5-Month
12.28"
(311.91mm)
12.97"
(329.44mm)
-0.69"
(-17.53mm)
35th Driest Driest since: 1988 1952
92nd Wettest Wettest since: 1998 1941
Ties: 1955
May–Oct 1999
6-Month
15.19"
(385.83mm)
15.88"
(403.35mm)
-0.69"
(-17.52mm)
33rd Driest Driest since: 1988 1952
94th Wettest Wettest since: 1998 1941
Apr–Oct 1999
7-Month
18.06"
(458.72mm)
18.40"
(467.36mm)
-0.34"
(-8.64mm)
46th Driest Driest since: 1988 1952
81st Wettest Wettest since: 1998 1941
Ties: 1962
Mar–Oct 1999
8-Month
20.25"
(514.35mm)
20.91"
(531.11mm)
-0.66"
(-16.76mm)
41st Driest Driest since: 1988 1956
86th Wettest Wettest since: 1998 2019
Ties: 1921
Feb–Oct 1999
9-Month
22.17"
(563.12mm)
23.04"
(585.22mm)
-0.87"
(-22.10mm)
35th Driest Driest since: 1988 1934
92nd Wettest Wettest since: 1998 2019
Jan–Oct 1999
10-Month
25.30"
(642.62mm)
25.36"
(644.14mm)
-0.06"
(-1.52mm)
56th Driest Driest since: 1992 1934
71st Wettest Wettest since: 1998 2019
Dec 1998–Oct 1999
11-Month
27.38"
(695.45mm)
27.70"
(703.58mm)
-0.32"
(-8.13mm)
48th Driest Driest since: 1988 1931
78th Wettest Wettest since: 1998 2019
Ties: 1922, 2007
Nov 1998–Oct 1999
12-Month
30.01"
(762.25mm)
29.93"
(760.22mm)
0.08"
(2.03mm)
59th Driest Driest since: 1994 1934
67th Wettest Wettest since: 1998 2019
May 1998–Oct 1999
18-Month
46.71"
(1,186.43mm)
45.83"
(1,164.08mm)
0.88"
(22.35mm)
71st Driest Driest since: 1989 1931
55th Wettest Wettest since: 1998 2019
Nov 1997–Oct 1999
24-Month
63.79"
(1,620.27mm)
59.90"
(1,521.46mm)
3.89"
(98.81mm)
105th Driest Driest since: 1995 1931
20th Wettest Wettest since: 1998 2019
Ties: 2010
Nov 1996–Oct 1999
36-Month
97.34"
(2,472.44mm)
89.86"
(2,282.44mm)
7.48"
(190.00mm)
112th Driest Driest since: 1996 1956
12th Wettest Wettest since: 1998 2019
Nov 1995–Oct 1999
48-Month
129.37"
(3,286.00mm)
119.78"
(3,042.41mm)
9.59"
(243.59mm)
114th Driest Driest since: 1997 1956
9th Wettest Wettest since: 1998 2019
Nov 1994–Oct 1999
60-Month
162.53"
(4,128.26mm)
149.66"
(3,801.36mm)
12.87"
(326.90mm)
118th Driest Driest since: 1998 1934
4th Wettest Wettest since: 1997 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published April 2021, retrieved on April 20, 2021 from https://www.ncdc.noaa.gov/cag/