Climate at a Glance

Statewide 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 August 2019. For more information, please see Climatological Rankings.


Montana

Precipitation Rankings, May 1978

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Amomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
May 1978
1-Month
4.75"
(120.65mm)
2.42"
(61.47mm)
2.33"
(59.18mm)
121st Driest Driest since: 1977 1937
5th Wettest Wettest since: 1927 1927
Apr–May 1978
2-Month
6.54"
(166.12mm)
3.93"
(99.82mm)
2.61"
(66.30mm)
123rd Driest Driest since: 1977 1934
3rd Wettest Wettest since: 1927 2011
Mar–May 1978
3-Month
7.19"
(182.63mm)
5.20"
(132.08mm)
1.99"
(50.55mm)
119th Driest Driest since: 1977 1931
7th Wettest Wettest since: 1975 2011
Feb–May 1978
4-Month
8.46"
(214.88mm)
6.26"
(159.00mm)
2.20"
(55.88mm)
117th Driest Driest since: 1977 1931
9th Wettest Wettest since: 1975 2011
Jan–May 1978
5-Month
10.07"
(255.78mm)
7.61"
(193.29mm)
2.46"
(62.49mm)
118th Driest Driest since: 1977 1931
8th Wettest Wettest since: 1975 2011
Dec 1977–May 1978
6-Month
12.81"
(325.37mm)
8.90"
(226.06mm)
3.91"
(99.31mm)
123rd Driest Driest since: 1977 1931
2nd Wettest Wettest to Date 2011
Nov 1977–May 1978
7-Month
14.30"
(363.22mm)
10.19"
(258.83mm)
4.11"
(104.39mm)
121st Driest Driest since: 1977 1931
4th Wettest Wettest since: 1927 2011
Oct 1977–May 1978
8-Month
15.34"
(389.64mm)
11.44"
(290.58mm)
3.90"
(99.06mm)
122nd Driest Driest since: 1977 1931
3rd Wettest Wettest since: 1898 2011
Sep 1977–May 1978
9-Month
17.77"
(451.36mm)
12.89"
(327.41mm)
4.88"
(123.95mm)
122nd Driest Driest since: 1977 1905
3rd Wettest Wettest since: 1898 2011
Aug 1977–May 1978
10-Month
19.66"
(499.36mm)
14.22"
(361.19mm)
5.44"
(138.17mm)
123rd Driest Driest since: 1977 1905
2nd Wettest Wettest to Date 2011
Jul 1977–May 1978
11-Month
21.20"
(538.48mm)
15.80"
(401.32mm)
5.40"
(137.16mm)
123rd Driest Driest since: 1977 1905
2nd Wettest Wettest to Date 2011
Jun 1977–May 1978
12-Month
22.86"
(580.64mm)
18.66"
(473.96mm)
4.20"
(106.68mm)
118th Driest Driest since: 1977 1905
7th Wettest Wettest since: 1942 2011
Dec 1976–May 1978
18-Month
29.59"
(751.59mm)
27.58"
(700.53mm)
2.01"
(51.06mm)
91st Driest Driest since: 1977 1937
33rd Wettest Wettest since: 1976 2011
Jun 1976–May 1978
24-Month
39.24"
(996.70mm)
37.34"
(948.44mm)
1.90"
(48.26mm)
85th Driest Driest since: 1977 1937
39th Wettest Wettest since: 1976 1917
Jun 1975–May 1978
36-Month
60.42"
(1,534.67mm)
56.01"
(1,422.65mm)
4.41"
(112.02mm)
102nd Driest Driest since: 1977 1937
21st Wettest Wettest since: 1976 1917
Ties: 1916
Jun 1974–May 1978
48-Month
80.50"
(2,044.70mm)
74.74"
(1,898.40mm)
5.76"
(146.30mm)
108th Driest Driest since: 1977 1937
14th Wettest Wettest since: 1918 1899, 1910
Jun 1973–May 1978
60-Month
101.37"
(2,574.80mm)
93.47"
(2,374.14mm)
7.90"
(200.66mm)
116th Driest Driest since: 1977 1938
5th Wettest Wettest since: 1917 1910

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published September 2019, retrieved on September 15, 2019 from https://www.ncdc.noaa.gov/cag/