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, May 1951

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1951
1-Month
1.95"
(49.53mm)
2.02"
(51.31mm)
-0.07"
(-1.78mm)
64th Driest
Driest since:
1974
65th Wettest
Wettest since:
2015
Ties: 1952
Apr–May 1951
2-Month
3.84"
(97.54mm)
3.86"
(98.04mm)
-0.02"
(-0.50mm)
74th Driest
Driest since:
2002
55th Wettest
Wettest since:
1957
Ties: 1922, 1986
Mar–May 1951
3-Month
4.57"
(116.08mm)
5.37"
(136.40mm)
-0.80"
(-20.32mm)
39th Driest
Driest since:
2002
90th Wettest
Wettest since:
1957
Feb–May 1951
4-Month
5.54"
(140.72mm)
6.46"
(164.08mm)
-0.92"
(-23.36mm)
33rd Driest
Driest since:
2002
96th Wettest
Wettest since:
1905
Jan–May 1951
5-Month
6.99"
(177.55mm)
7.52"
(191.01mm)
-0.53"
(-13.46mm)
49th Driest
Driest since:
2002
80th Wettest
Wettest since:
1957
Dec 1950–May 1951
6-Month
7.90"
(200.66mm)
8.60"
(218.44mm)
-0.70"
(-17.78mm)
49th Driest
Driest since:
2002
79th Wettest
Wettest since:
1957
Nov 1950–May 1951
7-Month
8.82"
(224.03mm)
9.66"
(245.36mm)
-0.84"
(-21.33mm)
44th Driest
Driest since:
2002
84th Wettest
Wettest since:
1957
Ties: 1971
Oct 1950–May 1951
8-Month
9.09"
(230.89mm)
11.00"
(279.40mm)
-1.91"
(-48.51mm)
24th Driest
Driest since:
2002
104th Wettest
Wettest since:
1995
Sep 1950–May 1951
9-Month
10.94"
(277.88mm)
12.43"
(315.72mm)
-1.49"
(-37.84mm)
38th Driest
Driest since:
2002
90th Wettest
Wettest since:
1942
Aug 1950–May 1951
10-Month
12.12"
(307.85mm)
14.44"
(366.78mm)
-2.32"
(-58.93mm)
21st Driest
Driest since:
2002
107th Wettest
Wettest since:
1942
Ties: 2021
Jul 1950–May 1951
11-Month
14.56"
(369.82mm)
16.54"
(420.12mm)
-1.98"
(-50.30mm)
32nd Driest
Driest since:
2002
96th Wettest
Wettest since:
1942
Jun 1950–May 1951
12-Month
15.50"
(393.70mm)
18.08"
(459.23mm)
-2.58"
(-65.53mm)
26th Driest
Driest since:
2002
102nd Wettest
Wettest since:
1942
Dec 1949–May 1951
18-Month
22.11"
(561.59mm)
26.70"
(678.18mm)
-4.59"
(-116.59mm)
12th Driest
Driest since:
2013
115th Wettest
Wettest since:
1942
Jun 1949–May 1951
24-Month
31.95"
(811.53mm)
36.18"
(918.97mm)
-4.23"
(-107.44mm)
18th Driest
Driest since:
1902
109th Wettest
Wettest since:
1942
Jun 1948–May 1951
36-Month
50.44"
(1,281.18mm)
54.21"
(1,376.93mm)
-3.77"
(-95.75mm)
32nd Driest
Driest since:
2022
94th Wettest
Wettest since:
1943
Jun 1947–May 1951
48-Month
71.53"
(1,816.86mm)
72.23"
(1,834.64mm)
-0.70"
(-17.78mm)
57th Driest
Driest since:
1956
68th Wettest
Wettest since:
1944
Jun 1946–May 1951
60-Month
91.16"
(2,315.46mm)
90.24"
(2,292.10mm)
0.92"
(23.36mm)
72nd Driest
Driest since:
2022
52nd Wettest
Wettest since:
1987
Ties: 1900

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