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 1999

View Period (Months):
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
October 1999
1-Month
0.57"
(14.48mm)
1.35"
(34.29mm)
-0.78"
(-19.81mm)
13th Driest
Driest since:
1952
116th Wettest
Wettest since:
1969
Sep–Oct 1999
2-Month
1.96"
(49.78mm)
2.77"
(70.36mm)
-0.81"
(-20.58mm)
30th Driest
Driest since:
1922
99th Wettest
Wettest since:
1941
Aug–Oct 1999
3-Month
5.23"
(132.84mm)
4.80"
(121.92mm)
0.43"
(10.92mm)
81st Driest
Driest since:
1944
48th Wettest
Wettest since:
1941
Jul–Oct 1999
4-Month
7.82"
(198.63mm)
6.90"
(175.26mm)
0.92"
(23.37mm)
91st Driest
Driest since:
1900
38th Wettest
Wettest since:
1941
Jun–Oct 1999
5-Month
9.46"
(240.28mm)
8.45"
(214.63mm)
1.01"
(25.65mm)
94th Driest
Driest since:
1900
35th Wettest
Wettest since:
1941
Ties: 1990
May–Oct 1999
6-Month
12.10"
(307.34mm)
10.46"
(265.68mm)
1.64"
(41.66mm)
105th Driest
Driest since:
1939
24th Wettest
Wettest since:
1941
Apr–Oct 1999
7-Month
16.48"
(418.59mm)
12.30"
(312.42mm)
4.18"
(106.17mm)
123rd Driest
Driest since:
1939
6th Wettest
Wettest since:
1941
Mar–Oct 1999
8-Month
17.20"
(436.88mm)
13.82"
(351.03mm)
3.38"
(85.85mm)
120th Driest
Driest since:
1934
9th Wettest
Wettest since:
1941
Feb–Oct 1999
9-Month
17.86"
(453.64mm)
14.91"
(378.71mm)
2.95"
(74.93mm)
115th Driest
Driest since:
2002
14th Wettest
Wettest since:
1941
Ties: 1984
Jan–Oct 1999
10-Month
18.93"
(480.82mm)
15.97"
(405.64mm)
2.96"
(75.18mm)
115th Driest
Driest since:
2002
14th Wettest
Wettest since:
1941
Dec 1998–Oct 1999
11-Month
19.56"
(496.82mm)
17.04"
(432.82mm)
2.52"
(64.00mm)
109th Driest
Driest since:
2002
19th Wettest
Wettest since:
1941
Nov 1998–Oct 1999
12-Month
20.90"
(530.86mm)
18.11"
(459.99mm)
2.79"
(70.87mm)
111th Driest
Driest since:
2002
17th Wettest
Wettest since:
1941
May 1998–Oct 1999
18-Month
32.20"
(817.88mm)
28.55"
(725.17mm)
3.65"
(92.71mm)
115th Driest
Driest since:
1901
13th Wettest
Wettest since:
1942
Nov 1997–Oct 1999
24-Month
39.79"
(1,010.67mm)
36.22"
(919.99mm)
3.57"
(90.68mm)
113th Driest
Driest since:
2003
14th Wettest
Wettest since:
1942
Nov 1996–Oct 1999
36-Month
62.57"
(1,589.28mm)
54.28"
(1,378.71mm)
8.29"
(210.57mm)
120th Driest
Driest since:
1956
6th Wettest
Wettest since:
1997
Nov 1995–Oct 1999
48-Month
81.32"
(2,065.53mm)
72.32"
(1,836.93mm)
9.00"
(228.60mm)
120th Driest
Driest since:
1956
5th Wettest
Wettest since:
1998
Nov 1994–Oct 1999
60-Month
103.91"
(2,639.31mm)
90.35"
(2,294.89mm)
13.56"
(344.42mm)
123rd Driest
Driest since:
1956
1st Wettest
Wettest to Date
1999

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