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, April 1940

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
April 1940
1-Month
1.84"
(46.74mm)
1.84"
(46.74mm)
0.00"
(0.00mm)
79th Driest
Driest since:
2002
50th Wettest
Wettest since:
1900
Mar–Apr 1940
2-Month
3.28"
(83.31mm)
3.35"
(85.09mm)
-0.07"
(-1.78mm)
67th Driest
Driest since:
2002
62nd Wettest
Wettest since:
1906
Feb–Apr 1940
3-Month
4.76"
(120.90mm)
4.44"
(112.78mm)
0.32"
(8.12mm)
89th Driest
Driest since:
2002
40th Wettest
Wettest since:
1905
Ties: 1973
Jan–Apr 1940
4-Month
6.56"
(166.62mm)
5.51"
(139.95mm)
1.05"
(26.67mm)
109th Driest
Driest since:
2002
20th Wettest
Wettest since:
1905
Dec 1939–Apr 1940
5-Month
7.18"
(182.37mm)
6.58"
(167.13mm)
0.60"
(15.24mm)
90th Driest
Driest since:
2002
38th Wettest
Wettest since:
1905
Nov 1939–Apr 1940
6-Month
7.49"
(190.25mm)
7.65"
(194.31mm)
-0.16"
(-4.06mm)
65th Driest
Driest since:
1904
63rd Wettest
Wettest since:
1984
Ties: 1899
Oct 1939–Apr 1940
7-Month
8.15"
(207.01mm)
8.98"
(228.09mm)
-0.83"
(-21.08mm)
45th Driest
Driest since:
2002
83rd Wettest
Wettest since:
1942
Sep 1939–Apr 1940
8-Month
9.53"
(242.06mm)
10.41"
(264.41mm)
-0.88"
(-22.35mm)
47th Driest
Driest since:
1902, 2002
81st Wettest
Wettest since:
1942
Aug 1939–Apr 1940
9-Month
10.64"
(270.26mm)
12.42"
(315.47mm)
-1.78"
(-45.21mm)
31st Driest
Driest since:
2002
97th Wettest
Wettest since:
1942
Jul 1939–Apr 1940
10-Month
11.67"
(296.42mm)
14.52"
(368.81mm)
-2.85"
(-72.39mm)
15th Driest
Driest since:
1902
113th Wettest
Wettest since:
1942
Jun 1939–Apr 1940
11-Month
12.54"
(318.52mm)
16.07"
(408.18mm)
-3.53"
(-89.66mm)
11th Driest
Driest since:
1981
117th Wettest
Wettest since:
1942
May 1939–Apr 1940
12-Month
13.56"
(344.42mm)
18.08"
(459.23mm)
-4.52"
(-114.81mm)
6th Driest
Driest since:
2013
122nd Wettest
Wettest since:
1942
Nov 1938–Apr 1940
18-Month
21.16"
(537.46mm)
25.76"
(654.30mm)
-4.60"
(-116.84mm)
12th Driest
Driest since:
2013
115th Wettest
Wettest since:
1942
May 1938–Apr 1940
24-Month
32.88"
(835.15mm)
36.16"
(918.46mm)
-3.28"
(-83.31mm)
27th Driest
Driest since:
1902
100th Wettest
Wettest since:
1942
May 1937–Apr 1940
36-Month
51.22"
(1,300.99mm)
54.22"
(1,377.19mm)
-3.00"
(-76.20mm)
38th Driest
Driest since:
1955
88th Wettest
Wettest since:
1985
May 1936–Apr 1940
48-Month
68.84"
(1,748.54mm)
72.24"
(1,834.90mm)
-3.40"
(-86.36mm)
36th Driest
Driest since:
1904
89th Wettest
Wettest since:
1986
May 1935–Apr 1940
60-Month
85.50"
(2,171.70mm)
90.24"
(2,292.10mm)
-4.74"
(-120.40mm)
33rd Driest
Driest since:
1957
91st Wettest
Wettest since:
1987

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