USGS Water-Year Summary for Site USGS 14044000

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	Available Parameters
	00010 Temperature, water(Max.,Mean,Min.)
	00060 Discharge(Mean)

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Water year 2019: 2018-10-01 to 2019-09-30

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USGS Water-Year Summary 2019

14044000 MIDDLE FORK JOHN DAY RIVER AT RITTER, OR

LOCATION - Lat 44°53'20", long 119°08'25" referenced to North American Datum of 1927, in SW 1/4 NW 1/4 sec.08, T.8 S., R.30 E., Grant County, OR, Hydrologic Unit 17070203, on left bank, 0.2 mi south of Ritter, 0.8 mi downstream from Twelvemile Creek and at mile 14.9.

DRAINAGE AREA - 515 mi².

REVISIONS HISTORY - WSP 739: 1931. WSP 1218: 1950. WSP 1448: 1930-32, 1937, drainage area.

SURFACE-WATER RECORDS

PERIOD OF RECORD - October 1929 to current year.

GAGE - Water-stage recorder. Datum of gage is 2,544.56 ft above NGVD of 1929.

REMARKS - No regulation. Diversions for irrigation upstream from station. Continuous water-quality records for period July 1966 to September 1968 have been collected at this location.

EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 5,430 ft³/s May 16, 2011, gage height, 8.46 ft; maximum gage height, 9.13 ft Feb. 1, 1963, result of ice jam; minimum discharge, 0.90 ft³/s Aug. 19, 20, 1966.

DISCHARGE, CUBIC FEET PER SECOND
YEAR 2018-10-01 to 2019-09-30
DAILY MEAN VALUES
[e, Value has been estimated.]

Day	Oct
	2018
1	22.7
2	23.2
3	23.5
4	24.4
5	25.7
6	32.2
7	39.3
8	32.6
9	40.6
10	68.7
11	43.0
12	34.4
13	31.3
14	29.6
15	28.9
16	28.9
17	29.3
18	29.2
19	29.0
20	28.9
21	28.6
22	28.6
23	28.7
24	28.7
25	28.9
26	29.2
27	32.8
28	38.5
29	44.1
30	46.2
31	45.2
Total	1,025
Mean	33.1
Max	68.7
Min	22.7
Ac-ft	2,033

Day	Nov
2018
1	101
2	98.5
3	63.9
4	52.8
5	47.4
6	45.4
7	44.7
8	42.2
9	37.2
10	40.5
11	35.7
12	28.1
13	38.0
14	41.4
15	45.5
16	40.1
17	40.6
18	35.0
19	30.2
20	32.1
21	39.1
22	45.7
23	47.5
24	49.2
25	42.5
26	35.1
27	49.9
28	54.8
29	51.1
30	49.4
--
Total	1,405
Mean	46.8
Max	101
Min	28.1
Ac-ft	2,786

Day	Dec
2018
1	48.0
2	48.0
3	38.4
4	e14.9
5	e11.1
6	e9.95
7	20.0
8	27.3
9	34.8
10	46.8
11	44.2
12	44.0
13	43.5
14	39.6
15	38.6
16	44.6
17	55.8
18	77.9
19	103
20	80.9
21	79.3
22	56.0
23	54.7
24	63.1
25	61.8
26	50.5
27	50.5
28	54.2
29	51.6
30	64.9
31	e59.8
Total	1,518
Mean	49.0
Max	103
Min	9.95
Ac-ft	3,010

Day	Jan
2019
1	e33.7
2	40.2
3	41.6
4	e44.9
5	e56.8
6	65.9
7	55.3
8	51.7
9	58.5
10	70.5
11	74.0
12	68.7
13	47.1
14	42.0
15	50.4
16	63.6
17	73.1
18	76.9
19	158
20	285
21	192
22	142
23	129
24	186
25	177
26	138
27	130
28	118
29	102
30	91.2
31	95.3
Total	2,958
Mean	95.4
Max	285
Min	33.7
Ac-ft	5,868

Day	Feb
2019
1	97.6
2	112
3	335
4	e440
5	290
6	211
7	131
8	132
9	147
10	135
11	132
12	126
13	122
14	e142
15	224
16	e170
17	e148
18	e141
19	e141
20	e138
21	125
22	115
23	135
24	137
25	138
26	124
27	134
28	153
--
--
--
Total	4,576
Mean	163
Max	440
Min	97.6
Ac-ft	9,076

Day	Mar
2019
1	152
2	138
3	147
4	143
5	129
6	159
7	224
8	206
9	185
10	176
11	169
12	188
13	180
14	167
15	179
16	225
17	340
18	503
19	779
20	1,110
21	1,070
22	1,180
23	1,370
24	1,630
25	1,290
26	1,340
27	1,370
28	1,570
29	1,210
30	1,000
31	989
Total	19,520
Mean	630
Max	1630
Min	129
Ac-ft	38,710

Day	Apr
2019
1	935
2	1,030
3	1,310
4	1,480
5	1,380
6	1,420
7	1,460
8	2,630
9	3,880
10	2,950
11	2,700
12	2,850
13	2,330
14	1,980
15	1,600
16	1,400
17	1,270
18	1,220
19	1,470
20	2,110
21	2,110
22	1,840
23	1,670
24	1,820
25	1,870
26	1,640
27	1,480
28	1,300
29	1,090
30	920
--
Total	53,140
Mean	1,772
Max	3880
Min	920
Ac-ft	105,400

Day	May
2019
1	764
2	669
3	628
4	627
5	682
6	789
7	901
8	964
9	955
10	907
11	864
12	887
13	929
14	869
15	847
16	941
17	1,130
18	908
19	925
20	1,220
21	1,020
22	879
23	758
24	702
25	719
26	661
27	752
28	714
29	743
30	735
31	804
Total	25,890
Mean	835
Max	1220
Min	627
Ac-ft	51,359

Day	Jun
2019
1	822
2	746
3	656
4	587
5	521
6	495
7	502
8	443
9	392
10	346
11	318
12	303
13	290
14	277
15	250
16	227
17	210
18	194
19	178
20	171
21	180
22	169
23	153
24	144
25	136
26	136
27	142
28	138
29	127
30	116
--
Total	9,369
Mean	312
Max	822
Min	116
Ac-ft	18,580

Day	Jul
2019
1	107
2	105
3	102
4	97.7
5	90.6
6	84.4
7	78.9
8	75.7
9	74.6
10	69.9
11	65.8
12	64.1
13	60.5
14	57.7
15	55.6
16	55.3
17	53.8
18	51.3
19	48.0
20	46.4
21	46.4
22	47.3
23	45.3
24	42.9
25	40.7
26	40.0
27	38.6
28	37.2
29	36.1
30	35.0
31	33.4
Total	1,887
Mean	60.9
Max	107
Min	33.4
Ac-ft	3,743

Day	Aug
2019
1	31.9
2	31.8
3	29.6
4	28.7
5	27.5
6	27.1
7	28.7
8	29.0
9	30.0
10	35.8
11	58.1
12	56.4
13	44.1
14	37.8
15	34.6
16	32.2
17	31.1
18	30.4
19	28.0
20	26.7
21	26.2
22	26.1
23	26.7
24	26.6
25	25.7
26	25.1
27	25.1
28	24.9
29	24.2
30	23.8
31	23.7
Total	958
Mean	30.9
Max	58.1
Min	23.7
Ac-ft	1,899

Day	Sep
2019
1	23.7
2	23.8
3	23.2
4	22.9
5	22.7
6	24.3
7	26.7
8	27.5
9	33.6
10	33.3
11	30.1
12	31.0
13	26.5
14	25.8
15	25.2
16	27.3
17	31.0
18	37.9
19	49.4
20	40.0
21	37.7
22	36.2
23	37.6
24	37.5
25	34.3
26	32.9
27	32.7
28	35.4
29	35.3
30	35.6
--
Total	941
Mean	31.4
Max	49.4
Min	22.7
Ac-ft	1,867

STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1930 - 2019, BY WATER YEAR (WY)
	Oct	Nov	Dec	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep
Mean	43.7	69.9	121	161	246	483	759	716	349	78.1	32.3	31.8
Max	99.5	231	482	727	1,073	1,236	1,772	1,709	1,173	285	98.4	108
(WY)	(1983)	(1974)	(1956)	(1997)	(1996)	(2017)	(2019)	(2011)	(2011)	(1984)	(1984)	(1984)
Min	17.4	20.2	24.7	23.4	31.3	69.8	175	79.2	56.6	17.4	3.75	10.0
(WY)	(1937)	(1937)	(2012)	(1937)	(1937)	(1977)	(1968)	(1934)	(1992)	(1973)	(1966)	(1935)

SUMMARY STATISTICS
	Water Year 2019		Water Years 1930 - 2019
Annual total	123,200
Annual mean	337.5		257.1
Highest annual mean			538.2	1984
Lowest annual mean			85.1	1977
Highest daily mean	3,880	Apr 09	4,600	May 16, 2011
Lowest daily mean	9.95	Dec 06	0.900	Aug 20, 1966
Annual 7-day minimum	22.4	Dec 03	1.09	Aug 19, 1966
Maximum peak flow	4,220	Apr 09	5,430	May 16, 2011
Maximum peak stage	8.10	Apr 09	9.13^a,b	Feb 01, 1963
Annual runoff (cfsm)	0.655		0.499
Annual runoff (inches)	8.90		6.78
10 percent exceeds	1,118		731.0
50 percent exceeds	69.9		89.0
90 percent exceeds	27.8		26.0

^a Gage height affected by backwater
^b Max gage height not associated with peak discharge

USGS Water-data graph for site USGS 14044000