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 February 2021. For more information, please see Climatological Rankings.


Contiguous U.S.

Precipitation Rankings, August 1978

View Period (Months):All1234567891011121824364860
Download: xml csv json
  • Record Driest
  • Bottom 1/10
  • Bottom 1/3
  • Normal
  • Top 1/3
  • Top 1/10
  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2020)
Wettest/Driest
Since
Record
August 1978
1-Month
2.77"
(70.36mm)
2.62"
(66.55mm)
0.15"
(3.81mm)
86th Driest Driest since: 1976 1929
41st Wettest Wettest since: 1977 1977
Ties: 1993
Jul–Aug 1978
2-Month
5.52"
(140.21mm)
5.40"
(137.16mm)
0.12"
(3.05mm)
68th Driest Driest since: 1976 1930
59th Wettest Wettest since: 1977 1915
Ties: 1919, 1966
Jun–Aug 1978
3-Month
8.07"
(204.98mm)
8.32"
(211.33mm)
-0.25"
(-6.35mm)
34th Driest Driest since: 1976 1930
93rd Wettest Wettest since: 1977 1928
Ties: 1973
May–Aug 1978
4-Month
11.71"
(297.43mm)
11.23"
(285.24mm)
0.48"
(12.19mm)
80th Driest Driest since: 1977 1936
47th Wettest Wettest since: 1975 1915
Ties: 1909
Apr–Aug 1978
5-Month
14.25"
(361.95mm)
13.75"
(349.25mm)
0.50"
(12.70mm)
77th Driest Driest since: 1977 1934
50th Wettest Wettest since: 1975 2019
Mar–Aug 1978
6-Month
16.51"
(419.35mm)
16.26"
(413.00mm)
0.25"
(6.35mm)
64th Driest Driest since: 1976 1936
63rd Wettest Wettest since: 1977 1905
Feb–Aug 1978
7-Month
18.28"
(464.31mm)
18.40"
(467.36mm)
-0.12"
(-3.05mm)
58th Driest Driest since: 1977 1934
69th Wettest Wettest since: 1975 2019
Jan–Aug 1978
8-Month
21.46"
(545.08mm)
20.71"
(526.03mm)
0.75"
(19.05mm)
84th Driest Driest since: 1977 1934
43rd Wettest Wettest since: 1975 2019
Ties: 1907
Dec 1977–Aug 1978
9-Month
24.18"
(614.17mm)
23.05"
(585.47mm)
1.13"
(28.70mm)
87th Driest Driest since: 1977 1931
39th Wettest Wettest since: 1975 2019
Ties: 1922
Nov 1977–Aug 1978
10-Month
27.04"
(686.82mm)
25.28"
(642.11mm)
1.76"
(44.71mm)
102nd Driest Driest since: 1977 1934
24th Wettest Wettest since: 1975 2019
Oct 1977–Aug 1978
11-Month
29.23"
(742.44mm)
27.45"
(697.23mm)
1.78"
(45.21mm)
95th Driest Driest since: 1977 1934
31st Wettest Wettest since: 1975 2019
Sep 1977–Aug 1978
12-Month
32.45"
(824.23mm)
29.94"
(760.48mm)
2.51"
(63.75mm)
105th Driest Driest since: 1977 1934
21st Wettest Wettest since: 1975 2019
Mar 1977–Aug 1978
18-Month
49.09"
(1,246.89mm)
46.22"
(1,173.99mm)
2.87"
(72.90mm)
100th Driest Driest since: 1977 1931
26th Wettest Wettest since: 1975 2019
Sep 1976–Aug 1978
24-Month
59.26"
(1,505.20mm)
59.92"
(1,521.97mm)
-0.66"
(-16.77mm)
51st Driest Driest since: 1977 1918
74th Wettest Wettest since: 1976 2020
Sep 1975–Aug 1978
36-Month
87.56"
(2,224.02mm)
89.86"
(2,282.44mm)
-2.30"
(-58.42mm)
34th Driest Driest since: 1968 1956
90th Wettest Wettest since: 1977 2019
Sep 1974–Aug 1978
48-Month
120.57"
(3,062.48mm)
119.77"
(3,042.16mm)
0.80"
(20.32mm)
65th Driest Driest since: 1971 1956
58th Wettest Wettest since: 1977 2019
Sep 1973–Aug 1978
60-Month
153.95"
(3,910.33mm)
149.64"
(3,800.86mm)
4.31"
(109.47mm)
88th Driest Driest since: 1972 1934
34th Wettest Wettest since: 1977 2019

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: National Time Series, published March 2021, retrieved on March 8, 2021 from https://www.ncdc.noaa.gov/cag/