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 1970

View Period (Months):
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  • Record Driest
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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
May 1970
1-Month
0.84"
(21.34mm)
2.02"
(51.31mm)
-1.18"
(-29.97mm)
7th Driest
Driest since:
1974
122nd Wettest
Wettest since:
2015
Apr–May 1970
2-Month
2.42"
(61.47mm)
3.86"
(98.04mm)
-1.44"
(-36.57mm)
18th Driest
Driest since:
2002
111th Wettest
Wettest since:
1957
Mar–May 1970
3-Month
4.45"
(113.03mm)
5.37"
(136.40mm)
-0.92"
(-23.37mm)
33rd Driest
Driest since:
2002
96th Wettest
Wettest since:
1957
Feb–May 1970
4-Month
4.78"
(121.41mm)
6.46"
(164.08mm)
-1.68"
(-42.67mm)
19th Driest
Driest since:
2002
110th Wettest
Wettest since:
1905
Jan–May 1970
5-Month
5.41"
(137.41mm)
7.52"
(191.01mm)
-2.11"
(-53.60mm)
11th Driest
Driest since:
2002
118th Wettest
Wettest since:
1957
Dec 1969–May 1970
6-Month
6.43"
(163.32mm)
8.60"
(218.44mm)
-2.17"
(-55.12mm)
12th Driest
Driest since:
2002
116th Wettest
Wettest since:
1957
Nov 1969–May 1970
7-Month
7.15"
(181.61mm)
9.66"
(245.36mm)
-2.51"
(-63.75mm)
12th Driest
Driest since:
2002
116th Wettest
Wettest since:
1957
Oct 1969–May 1970
8-Month
10.95"
(278.13mm)
11.00"
(279.40mm)
-0.05"
(-1.27mm)
68th Driest
Driest since:
2002
60th Wettest
Wettest since:
1995
Sep 1969–May 1970
9-Month
12.65"
(321.31mm)
12.43"
(315.72mm)
0.22"
(5.59mm)
70th Driest
Driest since:
2002
58th Wettest
Wettest since:
1942
Ties: 2008
Aug 1969–May 1970
10-Month
14.61"
(371.09mm)
14.44"
(366.78mm)
0.17"
(4.31mm)
66th Driest
Driest since:
2002
62nd Wettest
Wettest since:
1942
Jul 1969–May 1970
11-Month
16.79"
(426.47mm)
16.54"
(420.12mm)
0.25"
(6.35mm)
71st Driest
Driest since:
2002
57th Wettest
Wettest since:
1942
Jun 1969–May 1970
12-Month
19.96"
(506.98mm)
18.08"
(459.23mm)
1.88"
(47.75mm)
99th Driest
Driest since:
2002
29th Wettest
Wettest since:
1942
Ties: 1898, 1909
Dec 1968–May 1970
18-Month
28.30"
(718.82mm)
26.70"
(678.18mm)
1.60"
(40.64mm)
94th Driest
Driest since:
2013
33rd Wettest
Wettest since:
1942
Jun 1968–May 1970
24-Month
36.66"
(931.16mm)
36.18"
(918.97mm)
0.48"
(12.19mm)
75th Driest
Driest since:
1902
52nd Wettest
Wettest since:
1942
Jun 1967–May 1970
36-Month
55.24"
(1,403.10mm)
54.21"
(1,376.93mm)
1.03"
(26.17mm)
79th Driest
Driest since:
2022
47th Wettest
Wettest since:
1943
Jun 1966–May 1970
48-Month
72.07"
(1,830.58mm)
72.23"
(1,834.64mm)
-0.16"
(-4.06mm)
62nd Driest
Driest since:
1956
63rd Wettest
Wettest since:
1944
Jun 1965–May 1970
60-Month
91.57"
(2,325.88mm)
90.24"
(2,292.10mm)
1.33"
(33.78mm)
74th Driest
Driest since:
2022
50th Wettest
Wettest since:
1987

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