Statewide Rankings

Statewide 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.

Colorado

Precipitation Rankings, October 1900

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1900
1-Month
0.56"
(14.22mm)
1.35"
(34.29mm)
-0.79"
(-20.07mm)
11th Driest
Driest since:
1952
118th Wettest
Wettest since:
1969
Ties: 1917
Sep–Oct 1900
2-Month
1.81"
(45.97mm)
2.77"
(70.36mm)
-0.96"
(-24.39mm)
28th Driest
Driest since:
1922
101st Wettest
Wettest since:
1941
Ties: 2003
Aug–Oct 1900
3-Month
2.54"
(64.52mm)
4.80"
(121.92mm)
-2.26"
(-57.40mm)
4th Driest
Driest since:
1944
125th Wettest
Wettest since:
1941
Jul–Oct 1900
4-Month
3.55"
(90.17mm)
6.90"
(175.26mm)
-3.35"
(-85.09mm)
1st Driest
Driest since:
1900
128th Wettest
Wettest since:
1941
Jun–Oct 1900
5-Month
4.98"
(126.49mm)
8.45"
(214.63mm)
-3.47"
(-88.14mm)
1st Driest
Driest since:
1900
128th Wettest
Wettest since:
1941
May–Oct 1900
6-Month
6.32"
(160.53mm)
10.46"
(265.68mm)
-4.14"
(-105.15mm)
2nd Driest
Driest since:
1939
127th Wettest
Wettest since:
1941
Apr–Oct 1900
7-Month
11.77"
(298.96mm)
12.30"
(312.42mm)
-0.53"
(-13.46mm)
55th Driest
Driest since:
1939
74th Wettest
Wettest since:
1941
Mar–Oct 1900
8-Month
12.27"
(311.66mm)
13.82"
(351.03mm)
-1.55"
(-39.37mm)
36th Driest
Driest since:
1934
93rd Wettest
Wettest since:
1941
Feb–Oct 1900
9-Month
13.34"
(338.84mm)
14.91"
(378.71mm)
-1.57"
(-39.87mm)
38th Driest
Driest since:
2002
91st Wettest
Wettest since:
1941
Jan–Oct 1900
10-Month
13.66"
(346.96mm)
15.97"
(405.64mm)
-2.31"
(-58.68mm)
23rd Driest
Driest since:
2002
106th Wettest
Wettest since:
1941
Ties: 1952
Dec 1899–Oct 1900
11-Month
15.12"
(384.05mm)
17.04"
(432.82mm)
-1.92"
(-48.77mm)
30th Driest
Driest since:
2002
98th Wettest
Wettest since:
1941
Ties: 1937
Nov 1899–Oct 1900
12-Month
16.08"
(408.43mm)
18.11"
(459.99mm)
-2.03"
(-51.56mm)
27th Driest
Driest since:
2002
101st Wettest
Wettest since:
1941
May 1899–Oct 1900
18-Month
25.11"
(637.79mm)
28.55"
(725.17mm)
-3.44"
(-87.38mm)
22nd Driest
Driest since:
1901
106th Wettest
Wettest since:
1942
Nov 1898–Oct 1900
24-Month
32.60"
(828.04mm)
36.22"
(919.99mm)
-3.62"
(-91.95mm)
27th Driest
Driest since:
2003
100th Wettest
Wettest since:
1942
Nov 1897–Oct 1900
36-Month
49.21"
(1,249.93mm)
54.28"
(1,378.71mm)
-5.07"
(-128.78mm)
23rd Driest
Driest since:
1956
103rd Wettest
Wettest since:
1997
Nov 1896–Oct 1900
48-Month
70.50"
(1,790.70mm)
72.32"
(1,836.93mm)
-1.82"
(-46.23mm)
49th Driest
Driest since:
1956
76th Wettest
Wettest since:
1998
Nov 1895–Oct 1900
60-Month
87.57"
(2,224.28mm)
90.35"
(2,294.89mm)
-2.78"
(-70.61mm)
46th Driest
Driest since:
1956
78th Wettest
Wettest to Date
1999

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