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, July 2015

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
July 2015
1-Month
2.37"
(60.20mm)
2.10"
(53.34mm)
0.27"
(6.86mm)
88th Driest
Driest since:
1900
41st Wettest
Wettest since:
1998
Jun–Jul 2015
2-Month
4.28"
(108.71mm)
3.64"
(92.46mm)
0.64"
(16.25mm)
100th Driest
Driest since:
1924
29th Wettest
Wettest since:
1965
Ties: 1983
May–Jul 2015
3-Month
9.58"
(243.33mm)
5.66"
(143.76mm)
3.92"
(99.57mm)
128th Driest
Driest since:
2002
1st Wettest
Wettest to Date
2015
Apr–Jul 2015
4-Month
11.46"
(291.08mm)
7.50"
(190.50mm)
3.96"
(100.58mm)
126th Driest
Driest since:
2002
3rd Wettest
Wettest since:
1957
Mar–Jul 2015
5-Month
12.32"
(312.93mm)
9.02"
(229.11mm)
3.30"
(83.82mm)
124th Driest
Driest since:
2002
5th Wettest
Wettest since:
1957
Feb–Jul 2015
6-Month
13.67"
(347.22mm)
10.11"
(256.79mm)
3.56"
(90.43mm)
125th Driest
Driest since:
2002
4th Wettest
Wettest since:
1995
Jan–Jul 2015
7-Month
14.32"
(363.73mm)
11.17"
(283.72mm)
3.15"
(80.01mm)
123rd Driest
Driest since:
2002
6th Wettest
Wettest since:
1957
Dec 2014–Jul 2015
8-Month
15.63"
(397.00mm)
12.24"
(310.90mm)
3.39"
(86.10mm)
120th Driest
Driest since:
2002
8th Wettest
Wettest since:
1957
Nov 2014–Jul 2015
9-Month
16.75"
(425.45mm)
13.31"
(338.07mm)
3.44"
(87.38mm)
121st Driest
Driest since:
2002
7th Wettest
Wettest since:
1957
Oct 2014–Jul 2015
10-Month
17.83"
(452.88mm)
14.64"
(371.86mm)
3.19"
(81.02mm)
120th Driest
Driest since:
2002
8th Wettest
Wettest since:
1995
Sep 2014–Jul 2015
11-Month
19.91"
(505.71mm)
16.07"
(408.18mm)
3.84"
(97.53mm)
121st Driest
Driest since:
2002
7th Wettest
Wettest since:
1995
Aug 2014–Jul 2015
12-Month
22.50"
(571.50mm)
18.08"
(459.23mm)
4.42"
(112.27mm)
124th Driest
Driest since:
2002
4th Wettest
Wettest since:
1995
Feb 2014–Jul 2015
18-Month
32.28"
(819.91mm)
28.21"
(716.53mm)
4.07"
(103.38mm)
119th Driest
Driest since:
2002, 2013
9th Wettest
Wettest since:
1942
Ties: 1905
Aug 2013–Jul 2015
24-Month
43.06"
(1,093.72mm)
36.18"
(918.97mm)
6.88"
(174.75mm)
125th Driest
Driest since:
1902
2nd Wettest
Wettest since:
1942
Aug 2012–Jul 2015
36-Month
57.08"
(1,449.83mm)
54.23"
(1,377.44mm)
2.85"
(72.39mm)
98th Driest
Driest since:
1956
28th Wettest
Wettest since:
1943
Aug 2011–Jul 2015
48-Month
70.99"
(1,803.15mm)
72.25"
(1,835.15mm)
-1.26"
(-32.00mm)
53rd Driest
Driest since:
1956
72nd Wettest
Wettest since:
1944
Aug 2010–Jul 2015
60-Month
89.26"
(2,267.20mm)
90.27"
(2,292.86mm)
-1.01"
(-25.66mm)
51st Driest
Driest since:
1954
73rd Wettest
Wettest since:
1999
Ties: 1906

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