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 December 2019. For more information, please see Climatological Rankings.


Montana

Precipitation Rankings, October 1999

View Period (Months):All1234567891011121824364860
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2019)
Wettest/Driest
Since
Record
October 1999
1-Month
0.99"
(25.15mm)
1.25"
(31.75mm)
-0.26"
(-6.60mm)
36th Driest Driest since: 1991 1987
90th Wettest Wettest since: 1998 2016
Ties: 1935, 1956, 1973
Sep–Oct 1999
2-Month
2.06"
(52.32mm)
2.70"
(68.58mm)
-0.64"
(-16.26mm)
29th Driest Driest since: 1990 1904
97th Wettest Wettest since: 1998 2016
Aug–Oct 1999
3-Month
3.90"
(99.06mm)
4.01"
(101.85mm)
-0.11"
(-2.79mm)
61st Driest Driest since: 1998 1904
65th Wettest Wettest since: 1997 1985
Jul–Oct 1999
4-Month
4.95"
(125.73mm)
5.60"
(142.24mm)
-0.65"
(-16.51mm)
48th Driest Driest since: 1996 1904
78th Wettest Wettest since: 1998 1993
Jun–Oct 1999
5-Month
7.51"
(190.75mm)
8.46"
(214.88mm)
-0.95"
(-24.13mm)
37th Driest Driest since: 1996 1904
89th Wettest Wettest since: 1998 1993
Ties: 1920
May–Oct 1999
6-Month
9.87"
(250.70mm)
10.88"
(276.35mm)
-1.01"
(-25.65mm)
41st Driest Driest since: 1996 1904
85th Wettest Wettest since: 1998 1993
Apr–Oct 1999
7-Month
11.62"
(295.15mm)
12.39"
(314.71mm)
-0.77"
(-19.56mm)
45th Driest Driest since: 1996 1904
81st Wettest Wettest since: 1998 1993
Mar–Oct 1999
8-Month
12.39"
(314.71mm)
13.66"
(346.96mm)
-1.27"
(-32.25mm)
35th Driest Driest since: 1994 1919
91st Wettest Wettest since: 1998 1975
Feb–Oct 1999
9-Month
13.77"
(349.76mm)
14.72"
(373.89mm)
-0.95"
(-24.13mm)
40th Driest Driest since: 1994 1931
86th Wettest Wettest since: 1998 1975
Jan–Oct 1999
10-Month
15.22"
(386.59mm)
16.07"
(408.18mm)
-0.85"
(-21.59mm)
44th Driest Driest since: 1994 1931
82nd Wettest Wettest since: 1998 1975
Dec 1998–Oct 1999
11-Month
16.88"
(428.75mm)
17.36"
(440.94mm)
-0.48"
(-12.19mm)
49th Driest Driest since: 1994 1931
76th Wettest Wettest since: 1998 1975
Nov 1998–Oct 1999
12-Month
18.80"
(477.52mm)
18.65"
(473.71mm)
0.15"
(3.81mm)
59th Driest Driest since: 1998 1931
66th Wettest Wettest since: 1997 2011
May 1998–Oct 1999
18-Month
30.68"
(779.27mm)
29.54"
(750.32mm)
1.14"
(28.95mm)
85th Driest Driest since: 1998 1931
40th Wettest Wettest since: 1997 2011
Nov 1997–Oct 1999
24-Month
36.80"
(934.72mm)
37.33"
(948.18mm)
-0.53"
(-13.46mm)
49th Driest Driest since: 1995 1936
75th Wettest Wettest since: 1998 1975
Nov 1996–Oct 1999
36-Month
59.65"
(1,515.11mm)
56.01"
(1,422.65mm)
3.64"
(92.46mm)
98th Driest Driest since: 1996 1937
25th Wettest Wettest since: 1998 1898
Ties: 1928
Nov 1995–Oct 1999
48-Month
78.74"
(2,000.00mm)
74.75"
(1,898.65mm)
3.99"
(101.35mm)
89th Driest Driest since: 1997 1937
33rd Wettest Wettest since: 1998 1899
Nov 1994–Oct 1999
60-Month
99.76"
(2,533.90mm)
93.47"
(2,374.14mm)
6.29"
(159.76mm)
107th Driest Driest since: 1998 1937
14th Wettest Wettest since: 1997 1911

Citing This Page

  • NOAA National Centers for Environmental information, Climate at a Glance: Statewide Time Series, published January 2020, retrieved on January 20, 2020 from https://www.ncdc.noaa.gov/cag/