Divisional Rankings

Divisional Data Info
Please note, Degree Days and Palmer Indices are not available for Alaska. Palmer Drought Severity Index (PDSI), Palmer Hydrological Drought Index (PHDI), and Palmer Modified Drought Index (PMDI) are not offered for multiple-month time scales.

Montana, Climate Division 3. North Central

Precipitation Rankings, February 1987

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PeriodValue1901-2000
Mean
AnomalyRank
(1895-2023)
Wettest/Driest
Since
Record
February 1987
1-Month
0.42"
(10.67mm)
0.61"
(15.49mm)
-0.19"
(-4.82mm)
34th Driest
Driest since:
1931
96th Wettest
Wettest since:
2018
Ties: 1913, 1918, 1925
Jan–Feb 1987
2-Month
0.66"
(16.76mm)
1.41"
(35.81mm)
-0.75"
(-19.05mm)
9th Driest
Driest since:
1931
121st Wettest
Wettest since:
1895
Dec 1986–Feb 1987
3-Month
0.89"
(22.61mm)
2.18"
(55.37mm)
-1.29"
(-32.76mm)
4th Driest
Driest since:
1931
125th Wettest
Wettest since:
1907
Nov 1986–Feb 1987
4-Month
2.01"
(51.05mm)
2.90"
(73.66mm)
-0.89"
(-22.61mm)
20th Driest
Driest since:
1944
109th Wettest
Wettest since:
1907
Oct 1986–Feb 1987
5-Month
2.79"
(70.87mm)
3.72"
(94.49mm)
-0.93"
(-23.62mm)
24th Driest
Driest since:
1908
105th Wettest
Wettest since:
1907
Sep 1986–Feb 1987
6-Month
7.55"
(191.77mm)
5.02"
(127.51mm)
2.53"
(64.26mm)
122nd Driest
Driest since:
1988
7th Wettest
Wettest since:
1912
Aug 1986–Feb 1987
7-Month
8.66"
(219.96mm)
6.37"
(161.80mm)
2.29"
(58.16mm)
114th Driest
Driest since:
1905
15th Wettest
Wettest since:
1986
Jul 1986–Feb 1987
8-Month
9.76"
(247.90mm)
7.96"
(202.18mm)
1.80"
(45.72mm)
108th Driest
Driest since:
1905
21st Wettest
Wettest since:
1994
Ties: 1900
Jun 1986–Feb 1987
9-Month
11.83"
(300.48mm)
10.90"
(276.86mm)
0.93"
(23.62mm)
83rd Driest
Driest since:
1905
46th Wettest
Wettest since:
1994
May 1986–Feb 1987
10-Month
15.63"
(397.00mm)
13.06"
(331.72mm)
2.57"
(65.28mm)
104th Driest
Driest since:
1905
25th Wettest
Wettest since:
1928
Ties: 1947
Apr 1986–Feb 1987
11-Month
16.51"
(419.35mm)
14.17"
(359.92mm)
2.34"
(59.43mm)
102nd Driest
Driest since:
1905
27th Wettest
Wettest since:
1928
Mar 1986–Feb 1987
12-Month
17.08"
(433.83mm)
14.98"
(380.49mm)
2.10"
(53.34mm)
99th Driest
Driest since:
1905
30th Wettest
Wettest since:
1976
Sep 1985–Feb 1987
18-Month
25.58"
(649.73mm)
20.01"
(508.25mm)
5.57"
(141.48mm)
120th Driest
Driest since:
1905
8th Wettest
Wettest since:
1928
Mar 1985–Feb 1987
24-Month
34.48"
(875.79mm)
30.01"
(762.25mm)
4.47"
(113.54mm)
108th Driest
Driest since:
1906
20th Wettest
Wettest since:
1917
Mar 1984–Feb 1987
36-Month
45.26"
(1,149.60mm)
45.06"
(1,144.52mm)
0.20"
(5.08mm)
61st Driest
Driest since:
1921
66th Wettest
Wettest since:
1899
Mar 1983–Feb 1987
48-Month
59.06"
(1,500.12mm)
60.14"
(1,527.56mm)
-1.08"
(-27.44mm)
52nd Driest
Driest since:
1921
74th Wettest
Wettest since:
1900
Mar 1982–Feb 1987
60-Month
74.49"
(1,892.05mm)
75.29"
(1,912.37mm)
-0.80"
(-20.32mm)
57th Driest
Driest since:
1922
68th Wettest
Wettest since:
1900

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