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, September 1965

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  • Record Wettest
Period Value 1901-2000
Mean
Anomaly Rank
(1895-2022)
Wettest/Driest
Since
Record
September 1965
1-Month
2.55"
(64.77mm)
1.43"
(36.32mm)
1.12"
(28.45mm)
120th Driest
Driest since:
1956
9th Wettest
Wettest since:
2013
Aug–Sep 1965
2-Month
4.97"
(126.24mm)
3.46"
(87.88mm)
1.51"
(38.36mm)
119th Driest
Driest since:
1944
10th Wettest
Wettest since:
2013
Jul–Sep 1965
3-Month
8.22"
(208.79mm)
5.56"
(141.22mm)
2.66"
(67.57mm)
126th Driest
Driest since:
1900
3rd Wettest
Wettest since:
2013
Jun–Sep 1965
4-Month
11.71"
(297.43mm)
7.10"
(180.34mm)
4.61"
(117.09mm)
128th Driest
Driest since:
1924
1st Wettest
Wettest to Date
1965
May–Sep 1965
5-Month
13.72"
(348.49mm)
9.12"
(231.65mm)
4.60"
(116.84mm)
128th Driest
Driest since:
1939
1st Wettest
Wettest to Date
1965
Apr–Sep 1965
6-Month
15.29"
(388.37mm)
10.96"
(278.38mm)
4.33"
(109.99mm)
124th Driest
Driest since:
1939
5th Wettest
Wettest since:
1999
Mar–Sep 1965
7-Month
16.87"
(428.50mm)
12.47"
(316.74mm)
4.40"
(111.76mm)
125th Driest
Driest since:
2002
4th Wettest
Wettest since:
1941
Feb–Sep 1965
8-Month
17.86"
(453.64mm)
13.56"
(344.42mm)
4.30"
(109.22mm)
125th Driest
Driest since:
2002
4th Wettest
Wettest since:
1941
Jan–Sep 1965
9-Month
19.11"
(485.39mm)
14.62"
(371.35mm)
4.49"
(114.04mm)
125th Driest
Driest since:
2002
4th Wettest
Wettest since:
1957
Dec 1964–Sep 1965
10-Month
20.87"
(530.10mm)
15.70"
(398.78mm)
5.17"
(131.32mm)
125th Driest
Driest since:
2002
3rd Wettest
Wettest since:
1957
Nov 1964–Sep 1965
11-Month
22.43"
(569.72mm)
16.76"
(425.70mm)
5.67"
(144.02mm)
125th Driest
Driest since:
2002
3rd Wettest
Wettest since:
1941
Oct 1964–Sep 1965
12-Month
22.58"
(573.53mm)
18.10"
(459.74mm)
4.48"
(113.79mm)
123rd Driest
Driest since:
2002
5th Wettest
Wettest since:
1995
Apr 1964–Sep 1965
18-Month
31.62"
(803.15mm)
29.08"
(738.63mm)
2.54"
(64.52mm)
101st Driest
Driest since:
2002
27th Wettest
Wettest since:
1942
Ties: 1970
Oct 1963–Sep 1965
24-Month
36.82"
(935.23mm)
36.22"
(919.99mm)
0.60"
(15.24mm)
71st Driest
Driest since:
2003
56th Wettest
Wettest since:
1942
Oct 1962–Sep 1965
36-Month
52.55"
(1,334.77mm)
54.27"
(1,378.46mm)
-1.72"
(-43.69mm)
47th Driest
Driest since:
1956
79th Wettest
Wettest since:
1997
Oct 1961–Sep 1965
48-Month
68.51"
(1,740.15mm)
72.31"
(1,836.67mm)
-3.80"
(-96.52mm)
36th Driest
Driest since:
1956
89th Wettest
Wettest since:
1998
Oct 1960–Sep 1965
60-Month
88.78"
(2,255.01mm)
90.33"
(2,294.38mm)
-1.55"
(-39.37mm)
53rd Driest
Driest since:
2022
71st Wettest
Wettest since:
1999

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