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Water-Year Summary for Site USGS 09380000
The maximum discharge and date of the peak for water year 1884 were revised on May 30, 2024. The original USGS estimate was incorrectly revised to 300,000 ft3/s in 1938. This revision is rescinded as of May 30, 2024. The month and day of the event were also removed, as there are contradicting reports and no clear evidence for a specific date.
The maximum discharge for water year 1921 was revised on May 30, 2024. The original USGS estimate was incorrectly revised to 220,000 ft3/s in 1938. This revision is rescinded as of May 30, 2024.
See USGS Professional Paper 1677 for additional information about the 1884 and 1921 water year peaks.
Oct | |
---|---|
2019 | |
1 | 11,000 |
2 | 10,600 |
3 | 10,500 |
4 | 10,400 |
5 | 9,570 |
6 | 9,440 |
7 | 10,900 |
8 | 10,700 |
9 | 10,700 |
10 | 10,700 |
11 | 10,700 |
12 | 10,300 |
13 | 9,280 |
14 | 10,100 |
15 | 10,500 |
16 | 10,400 |
17 | 10,400 |
18 | 10,000 |
19 | 10,300 |
20 | 9,090 |
21 | 10,300 |
22 | 10,700 |
23 | 10,500 |
24 | 10,600 |
25 | 10,500 |
26 | 9,870 |
27 | 9,230 |
28 | 10,300 |
29 | 10,600 |
30 | 10,500 |
31 | 10,400 |
Total | 319,100 |
Mean | 10,290 |
Max | 11000 |
Min | 9090 |
Ac-ft | 632,900 |
Nov | |
---|---|
2019 | |
1 | 10,900 |
2 | 10,100 |
3 | 9,500 |
4 | 10,900 |
5 | 10,800 |
6 | 11,200 |
7 | 11,100 |
8 | 11,100 |
9 | 10,100 |
10 | 9,530 |
11 | 10,900 |
12 | 10,900 |
13 | 10,600 |
14 | 10,800 |
15 | 10,800 |
16 | 9,650 |
17 | 9,450 |
18 | 10,800 |
19 | 11,000 |
20 | 11,300 |
21 | 11,100 |
22 | 11,200 |
23 | 10,000 |
24 | 9,540 |
25 | 11,000 |
26 | 11,300 |
27 | 11,200 |
28 | 9,600 |
29 | 11,000 |
30 | 10,200 |
-- | |
Total | 317,600 |
Mean | 10,590 |
Max | 11300 |
Min | 9450 |
Ac-ft | 629,900 |
Dec | |
---|---|
2019 | |
1 | 10,700 |
2 | 12,300 |
3 | 12,800 |
4 | 12,400 |
5 | 12,900 |
6 | 12,800 |
7 | 12,400 |
8 | 11,200 |
9 | 12,400 |
10 | 12,800 |
11 | 12,700 |
12 | 12,700 |
13 | 12,700 |
14 | 12,100 |
15 | 11,000 |
16 | 12,500 |
17 | 13,200 |
18 | 13,000 |
19 | 13,100 |
20 | 12,700 |
21 | 12,700 |
22 | 11,100 |
23 | 12,600 |
24 | 12,600 |
25 | 10,700 |
26 | 12,200 |
27 | 12,700 |
28 | 12,300 |
29 | 10,900 |
30 | 12,300 |
31 | 12,700 |
Total | 381,200 |
Mean | 12,300 |
Max | 13200 |
Min | 10700 |
Ac-ft | 756,100 |
Jan | |
---|---|
2020 | |
1 | 10,900 |
2 | 12,500 |
3 | 12,600 |
4 | 12,600 |
5 | 10,600 |
6 | 12,200 |
7 | 12,700 |
8 | 12,700 |
9 | 12,900 |
10 | 12,700 |
11 | 12,200 |
12 | 11,100 |
13 | 12,600 |
14 | 12,700 |
15 | 13,000 |
16 | 12,900 |
17 | 13,100 |
18 | 12,800 |
19 | 11,200 |
20 | 12,800 |
21 | 13,000 |
22 | 13,000 |
23 | 13,100 |
24 | 13,000 |
25 | 12,600 |
26 | 11,200 |
27 | 12,700 |
28 | 13,000 |
29 | 12,900 |
30 | 12,800 |
31 | 12,900 |
Total | 387,000 |
Mean | 12,480 |
Max | 13100 |
Min | 10600 |
Ac-ft | 767,600 |
Feb | |
---|---|
2020 | |
1 | 11,300 |
2 | 10,200 |
3 | 12,200 |
4 | 12,500 |
5 | 12,400 |
6 | 12,000 |
7 | 12,300 |
8 | 11,200 |
9 | 10,200 |
10 | 11,900 |
11 | 12,300 |
12 | 12,100 |
13 | 12,500 |
14 | 13,100 |
15 | 11,500 |
16 | 11,000 |
17 | 11,700 |
18 | 12,400 |
19 | 12,600 |
20 | 12,700 |
21 | 12,700 |
22 | 11,400 |
23 | 10,200 |
24 | 12,100 |
25 | 12,500 |
26 | 12,600 |
27 | 12,600 |
28 | 12,500 |
29 | 11,600 |
-- | |
-- | |
Total | 346,300 |
Mean | 11,940 |
Max | 13100 |
Min | 10200 |
Ac-ft | 686,900 |
Mar | |
---|---|
2020 | |
1 | 10,400 |
2 | 11,900 |
3 | 11,700 |
4 | 11,800 |
5 | 11,800 |
6 | 12,000 |
7 | 11,200 |
8 | 10,400 |
9 | 11,700 |
10 | 11,900 |
11 | 12,100 |
12 | 12,400 |
13 | 12,400 |
14 | 11,700 |
15 | 10,400 |
16 | 12,100 |
17 | 12,100 |
18 | 12,100 |
19 | 12,400 |
20 | 12,100 |
21 | 11,300 |
22 | 10,200 |
23 | 12,000 |
24 | 12,000 |
25 | 12,100 |
26 | 12,100 |
27 | 12,100 |
28 | 11,600 |
29 | 10,300 |
30 | 12,100 |
31 | 11,900 |
Total | 362,300 |
Mean | 11,690 |
Max | 12400 |
Min | 10200 |
Ac-ft | 718,600 |
Apr | |
---|---|
2020 | |
1 | 10,600 |
2 | 11,100 |
3 | 11,100 |
4 | 10,600 |
5 | 9,860 |
6 | 11,000 |
7 | 11,000 |
8 | 11,600 |
9 | 11,100 |
10 | 11,600 |
11 | 11,100 |
12 | 9,590 |
13 | 11,000 |
14 | 11,200 |
15 | 11,300 |
16 | 11,200 |
17 | 11,400 |
18 | 11,200 |
19 | 10,000 |
20 | 10,900 |
21 | 11,300 |
22 | 10,900 |
23 | 11,200 |
24 | 11,400 |
25 | 11,000 |
26 | 9,770 |
27 | 10,900 |
28 | 11,200 |
29 | 11,300 |
30 | 11,300 |
-- | |
Total | 328,700 |
Mean | 10,960 |
Max | 11600 |
Min | 9590 |
Ac-ft | 652,000 |
May | |
---|---|
2020 | |
1 | 10,900 |
2 | 10,600 |
3 | 10,300 |
4 | 10,700 |
5 | 10,800 |
6 | 10,800 |
7 | 11,000 |
8 | 10,800 |
9 | 10,500 |
10 | 10,300 |
11 | 10,700 |
12 | 10,900 |
13 | 10,800 |
14 | 10,800 |
15 | 10,700 |
16 | 10,500 |
17 | 10,300 |
18 | 10,600 |
19 | 10,700 |
20 | 10,800 |
21 | 10,800 |
22 | 10,900 |
23 | 10,100 |
24 | 9,800 |
25 | 9,810 |
26 | 10,300 |
27 | 10,600 |
28 | 10,800 |
29 | 10,900 |
30 | 10,400 |
31 | 10,200 |
Total | 328,100 |
Mean | 10,580 |
Max | 11000 |
Min | 9800 |
Ac-ft | 650,800 |
Jun | |
---|---|
2020 | |
1 | 12,300 |
2 | 12,100 |
3 | 11,900 |
4 | 11,700 |
5 | 11,900 |
6 | 9,320 |
7 | 8,960 |
8 | 11,200 |
9 | 11,500 |
10 | 12,100 |
11 | 12,100 |
12 | 12,000 |
13 | 9,430 |
14 | 8,960 |
15 | 11,500 |
16 | e12,300 |
17 | 11,900 |
18 | 11,700 |
19 | 11,900 |
20 | 9,390 |
21 | 8,920 |
22 | 11,500 |
23 | 12,100 |
24 | 12,000 |
25 | 11,900 |
26 | 11,900 |
27 | 9,380 |
28 | 8,880 |
29 | 11,500 |
30 | 12,200 |
-- | |
Total | 334,400 |
Mean | 11,150 |
Max | 12300 |
Min | 8880 |
Ac-ft | 663,400 |
Jul | |
---|---|
2020 | |
1 | 13,200 |
2 | 13,700 |
3 | 13,700 |
4 | 10,000 |
5 | 9,470 |
6 | 12,800 |
7 | 13,600 |
8 | 13,400 |
9 | 13,500 |
10 | 13,700 |
11 | 10,100 |
12 | 9,430 |
13 | 13,000 |
14 | 13,600 |
15 | 13,500 |
16 | 13,500 |
17 | 13,700 |
18 | 10,000 |
19 | 9,470 |
20 | 13,100 |
21 | 14,000 |
22 | 13,800 |
23 | 13,800 |
24 | 14,100 |
25 | 10,200 |
26 | 9,670 |
27 | 13,200 |
28 | 13,700 |
29 | 13,700 |
30 | 13,800 |
31 | 13,600 |
Total | 390,000 |
Mean | 12,580 |
Max | 14100 |
Min | 9430 |
Ac-ft | 773,600 |
Aug | |
---|---|
2020 | |
1 | 11,400 |
2 | 11,000 |
3 | 14,700 |
4 | 15,500 |
5 | 15,600 |
6 | 15,400 |
7 | 15,700 |
8 | 11,600 |
9 | 11,100 |
10 | 15,000 |
11 | 15,700 |
12 | 15,300 |
13 | 15,500 |
14 | 15,900 |
15 | 12,100 |
16 | 11,100 |
17 | 15,600 |
18 | 16,500 |
19 | 15,500 |
20 | 15,600 |
21 | 15,300 |
22 | 11,600 |
23 | 11,000 |
24 | 14,700 |
25 | 15,400 |
26 | 15,300 |
27 | 15,100 |
28 | 15,400 |
29 | 11,700 |
30 | 11,100 |
31 | 13,900 |
Total | 436,300 |
Mean | 14,070 |
Max | 16500 |
Min | 11000 |
Ac-ft | 865,400 |
Sep | |
---|---|
2020 | |
1 | 11,000 |
2 | 10,600 |
3 | 10,700 |
4 | 10,700 |
5 | 10,700 |
6 | 9,900 |
7 | 9,470 |
8 | 10,700 |
9 | 10,900 |
10 | 10,800 |
11 | 10,800 |
12 | 10,800 |
13 | 9,460 |
14 | 10,400 |
15 | 10,600 |
16 | 10,800 |
17 | 10,600 |
18 | 10,900 |
19 | 10,800 |
20 | 9,460 |
21 | 10,500 |
22 | 10,700 |
23 | 10,900 |
24 | 10,900 |
25 | 10,800 |
26 | 10,700 |
27 | 9,530 |
28 | 10,600 |
29 | 10,900 |
30 | 10,900 |
-- | |
Total | 316,500 |
Mean | 10,550 |
Max | 11000 |
Min | 9460 |
Ac-ft | 627,800 |
Oct | Nov | Dec | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Mean | 9,586 | 9,904 | 9,865 | 10,080 | 10,020 | 10,600 | 15,550 | 26,340 | 30,869 | 17,990 | 13,350 | 10,910 |
Max | 29,230 | 24,770 | 25,019 | 26,270 | 26,740 | 24,910 | 47,800 | 82,630 | 94,860 | 65,300 | 30,750 | 34,180 |
(WY) | (1942) | (1985) | (1987) | (1987) | (1985) | (1997) | (1942) | (1952) | (1957) | (1957) | (1929) | (1927) |
Min | 1,000 | 1,000 | 1,019 | 1,153 | 4,008 | 3,054 | 1,017 | 1,010 | 1,001 | 977 | 1,005 | 1,006 |
(WY) | (1964) | (1964) | (1964) | (1964) | (1964) | (1963) | (1963) | (1963) | (1964) | (1964) | (1963) | (1963) |
Water Year 2020 | Water Years 1922 - 2020 | |||
---|---|---|---|---|
Annual total | 4,248,000 | |||
Annual mean | 11,610 | 14,600 | ||
Highest annual mean | 28,240 | 1984 | ||
Lowest annual mean | 3,325 | 1964 | ||
Highest daily mean | 16,500 | Aug 18 | 124,000 | Jun 12, 1957 |
Lowest daily mean | 8,880 | Jun 28 | 700.0 | Jan 23, 1963 |
Annual 7-day minimum | 10,110 | Oct 14 | 932.9 | Jul 14, 1964 |
Maximum peak flow | 127,000 | Jul 01, 1927 | ||
Maximum peak stage | 21.15 | Jun 12, 1952 | ||
Annual runoff (cfsm) | 0.104 | 0.131 | ||
Annual runoff (inches) | 1.41 | 1.77 | ||
10 percent exceeds | 13,500 | 25,600 | ||
50 percent exceeds | 11,200 | 11,100 | ||
90 percent exceeds | 10,000 | 5,080 |