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 1901

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1901
1-Month
0.63"
(16.00mm)
1.35"
(34.29mm)
-0.72"
(-18.29mm)
17th Driest
Driest since:
1952
112th Wettest
Wettest since:
1969
Sep–Oct 1901
2-Month
1.24"
(31.50mm)
2.77"
(70.36mm)
-1.53"
(-38.86mm)
4th Driest
Driest since:
1922
125th Wettest
Wettest since:
1941
Aug–Oct 1901
3-Month
3.75"
(95.25mm)
4.80"
(121.92mm)
-1.05"
(-26.67mm)
31st Driest
Driest since:
1944
98th Wettest
Wettest since:
1941
Ties: 2021
Jul–Oct 1901
4-Month
4.86"
(123.44mm)
6.90"
(175.26mm)
-2.04"
(-51.82mm)
16th Driest
Driest since:
1900
113th Wettest
Wettest since:
1941
Jun–Oct 1901
5-Month
6.28"
(159.51mm)
8.45"
(214.63mm)
-2.17"
(-55.12mm)
16th Driest
Driest since:
1900
113th Wettest
Wettest since:
1941
May–Oct 1901
6-Month
8.66"
(219.96mm)
10.46"
(265.68mm)
-1.80"
(-45.72mm)
24th Driest
Driest since:
1939
105th Wettest
Wettest since:
1941
Apr–Oct 1901
7-Month
11.03"
(280.16mm)
12.30"
(312.42mm)
-1.27"
(-32.26mm)
42nd Driest
Driest since:
1939
87th Wettest
Wettest since:
1941
Mar–Oct 1901
8-Month
12.69"
(322.33mm)
13.82"
(351.03mm)
-1.13"
(-28.70mm)
45th Driest
Driest since:
1934
84th Wettest
Wettest since:
1941
Feb–Oct 1901
9-Month
13.51"
(343.15mm)
14.91"
(378.71mm)
-1.40"
(-35.56mm)
41st Driest
Driest since:
2002
88th Wettest
Wettest since:
1941
Jan–Oct 1901
10-Month
14.32"
(363.73mm)
15.97"
(405.64mm)
-1.65"
(-41.91mm)
38th Driest
Driest since:
2002
91st Wettest
Wettest since:
1941
Dec 1900–Oct 1901
11-Month
14.68"
(372.87mm)
17.04"
(432.82mm)
-2.36"
(-59.95mm)
23rd Driest
Driest since:
2002
105th Wettest
Wettest since:
1941
Nov 1900–Oct 1901
12-Month
15.38"
(390.65mm)
18.11"
(459.99mm)
-2.73"
(-69.34mm)
19th Driest
Driest since:
2002
109th Wettest
Wettest since:
1941
May 1900–Oct 1901
18-Month
21.70"
(551.18mm)
28.55"
(725.17mm)
-6.85"
(-173.99mm)
1st Driest
Driest since:
1901
127th Wettest
Wettest since:
1942
Nov 1899–Oct 1901
24-Month
31.46"
(799.08mm)
36.22"
(919.99mm)
-4.76"
(-120.91mm)
19th Driest
Driest since:
2003
108th Wettest
Wettest since:
1942
Nov 1898–Oct 1901
36-Month
47.98"
(1,218.69mm)
54.28"
(1,378.71mm)
-6.30"
(-160.02mm)
17th Driest
Driest since:
1956
109th Wettest
Wettest since:
1997
Nov 1897–Oct 1901
48-Month
64.59"
(1,640.59mm)
72.32"
(1,836.93mm)
-7.73"
(-196.34mm)
17th Driest
Driest since:
1956
108th Wettest
Wettest since:
1998
Nov 1896–Oct 1901
60-Month
85.88"
(2,181.35mm)
90.35"
(2,294.89mm)
-4.47"
(-113.54mm)
39th Driest
Driest since:
1956
85th Wettest
Wettest since:
1999

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