Lake Powell Water Database


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powell
The earliest data is from Monday, March 11th, 1963
The most recent data is from Wednesday, October 1st, 2025

Water Data for 20 days surrounding May 21, 1988

DATE MEASURED ELEVATION CHANGE CONTENT INFLOW OUTFLOW HIGH TEMP LOW TEMP WATER TEMP
Tue, May 31, 1988
3688.01
0.21
22,448,532
21782
6160
73.0
43.0
--
Mon, May 30, 1988
3687.80
0.20
22,416,808
20655
5610
65.0
42.0
--
Sun, May 29, 1988
3687.60
0.16
22,386,614
20469
5810
91.0
42.0
--
Sat, May 28, 1988
3687.44
0.18
22,362,432
21341
6550
91.0
55.0
--
Fri, May 27, 1988
3687.26
0.11
22,335,262
22939
11300
95.0
55.0
--
Thu, May 26, 1988
3687.15
0.13
22,318,636
26321
12200
95.0
58.0
--
Wed, May 25, 1988
3687.02
0.22
22,299,022
28086
11500
92.0
61.0
--
Tue, May 24, 1988
3686.80
0.23
22,266,008
27811
10700
92.0
57.0
--
Mon, May 23, 1988
3686.57
0.29
22,231,510
29115
11200
90.0
53.0
--
Sun, May 22, 1988
3686.28
0.31
22,188,004
29546
9240
87.0
51.0
--
Sat, May 21, 1988
3685.97
0.34
22,141,496
28938
8100
84.0
49.0
--
Fri, May 20, 1988
3685.63
0.31
22,090,482
24880
8380
82.0
51.0
--
Thu, May 19, 1988
3685.32
0.16
22,044,010
20969
8320
80.0
53.0
--
Wed, May 18, 1988
3685.16
0.26
22,019,986
18557
9500
82.0
53.0
--
Tue, May 17, 1988
3684.90
0.03
21,981,086
16538
9370
81.0
53.0
--
Mon, May 16, 1988
3684.87
0.13
21,976,648
14361
11200
94.0
61.0
--
Sun, May 15, 1988
3684.74
0.04
21,957,258
13371
10100
92.0
56.0
--
Sat, May 14, 1988
3684.70
0.07
21,951,292
14195
8300
92.0
57.0
--
Fri, May 13, 1988
3684.63
0.02
21,940,852
13822
11500
93.0
52.0
--
Thu, May 12, 1988
3684.61
0.06
21,937,906
14214
10500
95.0
53.0
--
Wed, May 11, 1988
3684.55
0.03
21,928,958
15420
12000
90.0
50.0
--
Averages of List
3686.05
0.17
22,153,467
21111
9407
87.4
52.6
--


Averages for May 21st

AVERAGE TYPE ELEVATION CHANGE CONTENT INFLOW OUTFLOW HIGH TEMP LOW TEMP WATER TEMP
Since Filled
3629.11
0.33
15,318,799
32273
14113
82.7
55.6
65.2
All-Time
3618.31
0.37
14,493,074
32138
13696
72.3
48.3
62.7


All Lake Powell water data for May 21st

DATE MEASURED ELEVATION CONTENT INFLOW OUTFLOW HIGH TEMP LOW TEMP WATER TEMP
Wed May 21, 2025
3558.69
7,694,245
15721
9698
86.2
44.6
--
Tue May 21, 2024
3563.12
8,010,105
20543
10018
70.5
55.6
--
Sun May 21, 2023
3547.35
6,922,402
71071
17655
78.4
59.4
70.0
Sat May 21, 2022
3527.73
6,095,662
29224
9298
73.0
54.0
65.0
Fri May 21, 2021
3560.07
8,328,375
3604
10327
76.0
54.0
66.0
Thu May 21, 2020
3602.61
12,000,830
24057
10448
78.0
51.0
65.0
Tue May 21, 2019
3580.24
9,960,109
36304
12139
65.0
46.0
61.0
Mon May 21, 2018
3610.47
12,777,667
19499
12436
84.0
59.0
66.0
Sun May 21, 2017
3613.53
13,088,907
46438
9175
82.0
53.0
62.0
Sat May 21, 2016
3597.78
11,539,513
40640
10983
80.1
62.1
63.0
Thu May 21, 2015
3593.28
11,120,048
26746
11793
80.0
54.0
63.0
Wed May 21, 2014
3583.36
10,230,119
17617
8203
82.0
54.0
62.0
Tue May 21, 2013
3597.24
11,488,658
26641
10861
82.9
55.0
64.0
Mon May 21, 2012
3635.95
15,529,918
8666
9988
95.0
62.1
69.0
Sat May 21, 2011
3618.06
13,558,725
45192
22376
77.0
51.1
60.0
Fri May 21, 2010
3622.51
14,031,027
21174
9884
89.1
62.1
62.0
Thu May 21, 2009
3621.50
13,922,811
47766
9452
81.0
61.0
68.0
Wed May 21, 2008
3602.36
11,976,667
37823
13201
81.0
51.1
65.0
Mon May 21, 2007
3606.31
12,362,466
30249
10058
84.9
63.0
68.0
Sun May 21, 2006
3599.39
11,691,969
28075
9219
90.0
64.9
72.0
Sat May 21, 2005
3573.06
9,356,674
39444
10152
93.0
63.0
69.0
Fri May 21, 2004
3585.59
10,426,015
17337
10188
80.1
55.9
63.0
Wed May 21, 2003
3605.59
12,291,532
16883
11294
89.1
60.1
62.0
Tue May 21, 2002
3644.43
16,532,338
6667
10343
66.9
52.0
63.0
Mon May 21, 2001
3666.24
19,323,760
34577
9754
73.9
60.1
70.0
Sun May 21, 2000
3677.11
20,840,232
18998
16971
88.0
68.0
--
Fri May 21, 1999
3679.19
21,140,316
23189
19067
85.0
51.0
68.0
Thu May 21, 1998
3684.73
21,955,430
41535
16100
88.0
47.0
--
Wed May 21, 1997
3672.11
20,131,868
62444
21200
80.0
60.0
--
Tue May 21, 1996
3677.48
20,893,364
51396
17800
88.0
58.0
--
Sun May 21, 1995
3652.69
17,552,876
39466
8240
90.0
56.0
--
Sat May 21, 1994
3657.65
18,186,744
30565
8320
76.0
50.0
--
Fri May 21, 1993
3635.60
15,489,507
68796
9720
92.0
60.0
--
Thu May 21, 1992
3626.53
14,468,303
24115
9890
73.0
56.0
--
Tue May 21, 1991
3629.13
14,755,982
21910
15000
89.0
54.0
--
Mon May 21, 1990
3648.82
17,069,688
8176
8100
97.0
58.0
--
Sun May 21, 1989
3677.18
20,849,910
13665
6520
90.0
62.0
--
Sat May 21, 1988
3685.97
22,141,496
28938
8100
84.0
49.0
--
Thu May 21, 1987
3692.24
23,097,198
50740
12000
73.0
52.0
--
Wed May 21, 1986
3684.16
21,870,826
43153
50500
93.0
55.0
--
Tue May 21, 1985
3694.03
23,375,714
48486
44300
81.0
58.0
--
Mon May 21, 1984
3679.01
21,145,692
98648
45000
96.0
56.0
--
Sat May 21, 1983
3690.86
22,948,538
34977
19500
80.0
46.0
--
Fri May 21, 1982
3671.70
20,165,780
23037
10500
85.0
51.0
--
Thu May 21, 1981
3677.40
21,005,928
8112
9300
74.0
47.0
--
Wed May 21, 1980
3687.15
22,477,958
42123
11800
90.0
55.0
--
Mon May 21, 1979
3655.50
18,079,178
42408
8110
n/a
n/a
--
Sun May 21, 1978
3631.46
15,186,949
33075
6430
85.0
64.0
--
Sat May 21, 1977
3653.59
17,889,838
8057
998
80.0
50.0
--
Fri May 21, 1976
3665.87
19,541,248
30576
20400
75.0
57.0
--
Wed May 21, 1975
3650.94
17,607,692
38065
12100
69.0
41.0
--
Tue May 21, 1974
3659.73
18,774,696
37055
12300
74.0
48.0
--
Mon May 21, 1973
3606.43
12,614,729
64504
14000
84.0
61.0
--
Sun May 21, 1972
3610.44
13,043,383
17508
6290
76.0
46.0
--
Fri May 21, 1971
3606.88
12,700,201
33977
15400
85.0
65.0
--
Thu May 21, 1970
3573.25
9,608,036
47878
17100
86.0
55.0
--
Wed May 21, 1969
3564.04
8,867,362
39055
13600
90.0
61.0
--
Tue May 21, 1968
3517.91
5,656,859
20802
16700
92.0
61.0
--
Sun May 21, 1967
3502.31
4,762,824
11832
15400
90.0
59.0
--
Sat May 21, 1966
3543.46
7,354,665
18410
17800
89.0
63.0
--
Fri May 21, 1965
3492.41
4,245,047
36702
37300
90.0
62.0
--
Thu May 21, 1964
3404.00
814,000
30007
1010
95.0
62.0
--
Tue May 21, 1963
20341
1010
91.0
60.0
--



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Measurements are taken at 11:59 pm of the date listed
Temperature data is from Wahweap, AZ
Water temperature data is from wayneswords.com*
CHANGE represents water elevation change from previous day

Units used in each measurement:
Elevation - Feet above sea level
Change - Feet difference over previous measurement
Content - Acre Feet
Inflow - Acre Feet per day
Outflow - Acre Feet per day
All Temps - Degrees Farhenheit
The Water Year runs from October 1 to September 30 of the next year
Acre Feet = * Flow CFS
TP = Total Precipitation



Page took 2.497 seconds to create!
Copyright Summit Technologies, Inc.
Water data courtesy of US Bureau of Reclamation
*Air temp data is sourced from (Prev 24 Hr Extremes):    Weather
Weather forecast for
All data is provisional and subject to review and modification
USBR Source Data


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1999 - 2025


powell Water Database