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, January 1899

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Period Value 1901-2000
Mean		 Anomaly Rank
(1895-2022)		 Wettest/Driest
Since		 Record
January 1899
1-Month 		1.29"
(32.77mm)		 0.79"
(20.07mm)		 0.50"
(12.70mm)		 112th Driest
Driest since:
 1944
17th Wettest
Wettest since:
 1971
Dec 1898–Jan 1899
2-Month 		1.88"
(47.75mm)		 1.56"
(39.62mm)		 0.32"
(8.13mm)		 95th Driest
Driest since:
 1944
33rd Wettest
Wettest since:
 1918
Ties: 1999
Nov 1898–Jan 1899
3-Month 		2.56"
(65.02mm)		 2.29"
(58.17mm)		 0.27"
(6.85mm)		 83rd Driest
Driest since:
 1944
45th Wettest
Wettest since:
 1907
Oct 1898–Jan 1899
4-Month 		4.27"
(108.46mm)		 3.11"
(78.99mm)		 1.16"
(29.47mm)		 113th Driest
Driest since:
 1908
15th Wettest
Wettest since:
 1907
Sep 1898–Jan 1899
5-Month 		5.15"
(130.81mm)		 4.41"
(112.01mm)		 0.74"
(18.80mm)		 92nd Driest
Driest since:
 1988
36th Wettest
Wettest since:
 1912
Aug 1898–Jan 1899
6-Month 		5.91"
(150.11mm)		 5.76"
(146.30mm)		 0.15"
(3.81mm)		 78th Driest
Driest since:
 2002
50th Wettest
Wettest since:
 1912
Jul 1898–Jan 1899
7-Month 		7.44"
(188.98mm)		 7.34"
(186.44mm)		 0.10"
(2.54mm)		 74th Driest
Driest since:
 1905
54th Wettest
Wettest since:
 1912
Jun 1898–Jan 1899
8-Month 		10.66"
(270.76mm)		 10.29"
(261.37mm)		 0.37"
(9.39mm)		 73rd Driest
Driest since:
 1905
55th Wettest
Wettest since:
 1912
May 1898–Jan 1899
9-Month 		13.28"
(337.31mm)		 12.45"
(316.23mm)		 0.83"
(21.08mm)		 85th Driest
Driest since:
 1905
43rd Wettest
Wettest since:
 1928
Apr 1898–Jan 1899
10-Month 		14.60"
(370.84mm)		 13.56"
(344.42mm)		 1.04"
(26.42mm)		 86th Driest
Driest since:
 1905
42nd Wettest
Wettest since:
 1928
Mar 1898–Jan 1899
11-Month 		17.38"
(441.45mm)		 14.37"
(365.00mm)		 3.01"
(76.45mm)		 106th Driest
Driest since:
 1905
22nd Wettest
Wettest since:
 1928
Feb 1898–Jan 1899
12-Month 		17.92"
(455.17mm)		 14.98"
(380.49mm)		 2.94"
(74.68mm)		 105th Driest
Driest since:
 1919
23rd Wettest
Wettest since:
 1928
Aug 1897–Jan 1899
18-Month 		24.18"
(614.17mm)		 20.76"
(527.30mm)		 3.42"
(86.87mm)		 106th Driest
Driest since:
 2002
21st Wettest
Wettest since:
 1928
Ties: 2011
Feb 1897–Jan 1899
24-Month 		36.36"
(923.54mm)		 30.01"
(762.25mm)		 6.35"
(161.29mm)		 119th Driest
Driest since:
 1920
8th Wettest
Wettest since:
 1917
Feb 1896–Jan 1899
36-Month 		56.07"
(1,424.18mm)		 45.06"
(1,144.52mm)		 11.01"
(279.66mm)		 125th Driest
Driest since:
 1921
1st Wettest
Wettest to Date
 1899
Feb 1895–Jan 1899
48-Month 		71.00"
(1,803.40mm)		 60.16"
(1,528.06mm)		 10.84"
(275.34mm)		 123rd Driest
Driest since:
 1921
2nd Wettest
Wettest to Date
 1900

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