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USGS Surface-Water Monthly Statistics for Washington

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00060, Discharge, cubic feet per second,
YEAR	Monthly mean in ft3/s (Calculation Period: 1929-03-01 -> 2023-01-31)
Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1929			3,850	3,471	6,357	5,959	1,926	692.7	520.7	760.8	792.1	3,935
1930	1,923	6,781	3,508	4,044	3,428	3,000	962.6	491.8	546.8	2,763	2,227	1,874
1931	5,287	3,418	4,718	4,846	4,279	3,496	1,196	508.6	1,247	2,826	4,403	3,530
1932	5,176	5,541	9,979	6,797	5,623	5,452	3,324	1,341	1,181	3,080	12,800	6,645
1933	6,958	2,383	4,362	4,056	5,725	7,741	4,000	1,424	3,024	5,760	6,712	14,530
1934	9,550	4,003	5,122	4,244	3,178	1,567	1,067	773.4	1,106	4,434	6,381	5,319
1935	8,530	3,974	3,282	2,842	3,626	3,584	2,126	1,001	779.1	993.7	2,681	3,199
1936	6,055	2,207	4,228	4,934	7,847	5,570	1,881	716.1	963.2	870.9	667	5,688
1937	1,291	3,233	4,052	5,414	5,646	6,856	2,197	1,059	794.1	1,909	8,851	6,019
1938	4,814	2,065	2,946	5,962	4,585	2,780	1,090	582.8	493.4	1,196	3,942	6,105
1939	6,376	3,516	3,711	4,112	5,031	4,906	2,811	901.7	851.1	2,325	3,509	6,277
1940	3,019	4,640	5,089	4,043	4,422	1,803	839.5	625.6	517.4	2,012	2,925	3,894
1941	2,941	2,001	1,933	2,230	3,072	2,250	965.6	523.4	3,032	4,309	3,401	5,929
1942	2,222	2,648	2,646	3,677	4,117	6,035	2,206	899.1	575.9	1,018	6,979	6,000
1943	3,110	3,772	3,638	5,546	4,921	4,881	2,713	1,023	791.1	1,869	2,101	5,123
1944	2,511	2,658	2,721	3,869	5,224	3,263	1,153	733.6	2,563	1,664	3,402	3,883
1945	6,161	4,860	3,740	4,144	6,588	3,626	1,472	615.3	2,574	3,309	6,693	4,835
1946	4,861	3,862	4,315	4,655	6,333	6,233	3,081	1,028	811.5	3,059	4,081	8,690
1947	6,198	5,674	3,833	5,601	4,265	3,994	1,846	898.9	1,614	5,811	8,282	5,634
1948	4,632	3,981	3,207	4,037	7,238	7,372	2,740	2,015	1,933	2,739	5,494	4,168
1949	2,118	4,264	4,546	4,747	7,191	4,541	3,087	1,528	1,228	3,520	5,279	5,427
1950	4,729	5,545	7,093	5,235	5,872	7,850	4,410	2,133	1,109	4,281	6,642	7,502
1951	5,203	9,219	3,012	3,800	4,955	3,524	1,376	578.5	718.8	4,374	3,424	3,362
1952	2,098	4,030	2,686	4,392	5,578	3,884	2,327	790.2	593.4	479.3	619	1,756
1953	11,140	6,169	3,012	4,413	5,302	4,703	2,955	1,126	871.4	2,518	5,133	9,176
1954	5,017	6,044	3,181	3,962	4,856	6,254	4,221	2,030	2,150	1,843	4,716	3,518
1955	3,172	4,684	2,212	4,208	5,676	7,871	5,629	2,226	1,125	5,444	7,885	7,906
1956	4,544	2,279	3,817	5,704	7,103	6,273	3,698	1,138	1,436	4,722	4,558	8,388
1957	2,116	3,674	4,287	4,929	5,701	3,452	1,534	910.4	576	1,026	2,625	4,547
1958	5,208	4,974	2,446	4,022	4,152	2,246	895.2	516.6	1,170	3,067	8,931	7,641
1959	8,424	3,323	4,211	6,793	5,985	5,272	2,617	1,019	5,128	5,248	9,342	6,965
1960	2,845	4,241	3,137	4,692	6,040	4,627	1,594	1,197	1,235	3,153	6,894	3,495
1961	5,824	8,219	5,149	5,244	5,661	4,282	1,518	613	1,086	3,209	3,759	5,475
1962	6,380	2,996	2,435	4,685	3,947	3,847	2,404	1,628	1,170	2,225	5,454	5,724
1963	3,734	5,406	2,794	3,987	3,411	2,688	1,795	966.8	893	1,786	5,426	4,063
1964	6,002	3,645	3,695	4,226	5,677	8,603	4,991	2,992	2,829	2,914	3,765	6,382
1965	7,093	6,898	3,054	4,248	4,139	3,348	1,734	1,106	1,432	2,181	3,214	3,067
1966	4,444	2,640	3,531	4,830	5,440	4,260	2,969	1,072	800.2	2,304	3,645	7,172
1967	8,027	4,954	3,177	2,258	4,672	5,097	1,807	762.7	641.7	3,854	3,510	7,102
1968	6,482	6,579	3,726	3,938	4,635	4,737	1,642	1,536	2,899	3,613	4,932	5,106
1969	6,441	2,585	3,250	4,701	6,572	5,171	2,123	1,028	2,010	2,790	2,488	3,784
1970	5,487	4,089	3,055	4,176	4,065	3,903	1,440	745.1	1,890	2,332	4,048	4,213
1971	7,557	6,529	3,860	3,521	6,729	5,883	4,778	1,553	1,506	2,488	5,389	4,775
1972	6,044	8,296	9,780	5,196	7,578	6,846	4,784	1,640	2,586	1,368	2,577	6,839
1973	4,707	1,860	2,319	2,518	3,671	3,321	1,391	575.3	816.2	2,192	4,197	6,394
1974	8,595	4,627	5,208	4,886	5,857	8,983	5,126	2,045	1,036	628.6	3,033	5,335
1975	7,597	3,839	3,605	2,511	5,849	5,536	3,345	1,897	1,372	3,368	6,846	12,630
1976	8,261	3,515	2,473	3,871	5,508	4,376	3,336	2,056	1,259	1,115	2,521	3,350
1977	3,369	2,231	2,777	4,033	3,705	3,187	1,196	1,077	1,800	1,745	6,828	10,610
1978	3,652	3,029	3,084	3,111	4,188	3,051	1,465	1,170	3,069	1,372	3,822	4,258
1979	1,911	4,928	4,793	3,880	5,064	3,101	1,910	704.6	787.1	1,215	1,042	8,771
1980	3,020	3,946	3,616	4,895	3,514	3,050	1,639	1,052	2,358	981.8	5,545	8,273
1981	2,621	6,108	2,269	5,581	4,451	5,075	1,956	932.9	1,341	3,218	2,597	4,466
1982	5,855	9,743	4,590	2,978	4,612	4,848	2,644	1,129	1,716	2,181	3,170	5,305
1983	7,158	3,437	3,739	2,826	3,514	3,032	3,484	1,322	2,411	1,312	6,797	3,166
1984	8,973	3,540	4,013	3,274	5,585	5,522	2,539	1,060	1,113	1,706	4,487	3,969
1985	2,286	2,384	2,146	5,612	5,348	5,391	1,577	770.3	1,142	4,427	5,745	1,694
1986	3,811	4,716	3,824	2,813	4,798	2,390	1,601	749.3	1,198	1,552	7,490	2,825
1987	2,685	3,688	4,467	3,754	3,855	1,903	963.1	618.7	518.2	406.9	967.3	2,853
1988	2,405	3,804	4,372	6,143	4,827	3,329	1,841	860.4	1,221	3,551	5,632	4,613
1989	5,587	2,498	3,761	6,268	4,315	3,517	1,587	1,007	701.3	1,180	7,100	5,561
1990	6,905	5,513	4,165	5,192	4,353	6,210	2,183	994.5	794.5	4,149	12,850	5,154
1991	5,655	7,820	3,330	5,179	3,738	3,946	2,182	1,038	752.8	635.6	4,496	5,394
1992	5,140	3,852	2,058	2,843	2,434	1,362	1,224	714.8	1,865	1,361	4,099	3,325
1993	3,623	2,119	4,031	4,676	6,197	3,911	2,476	1,320	756.4	974.4	1,493	3,707
1994	4,170	2,166	4,144	4,082	3,001	3,078	1,487	704.1	963.5	2,124	3,459	6,773
1995	3,502	8,058	3,748	3,063	3,713	2,581	1,551	1,318	729.4	4,302	11,960	7,725
1996	7,375	9,553	2,763	4,640	4,520	2,581	1,361	1,167	1,387	3,878	5,409	4,518
1997	7,370	5,590	7,246	5,563	7,273	5,930	4,440	1,306	2,005	4,345	3,401	3,456
1998	5,190	2,867	3,632	2,678	4,353	3,118	1,431	669.1	483.7	1,528	6,315	7,730
1999	6,784	4,282	3,584	2,980	4,793	6,334	4,506	1,715	902.6	2,128	7,630	8,585
2000	3,325	3,071	3,084	4,756	5,027	5,241	1,905	936.7	1,582	2,709	1,870	2,119
2001	2,639	2,087	2,995	3,650	4,491	3,414	1,635	982.8	674.4	3,433	6,011	5,649
2002	5,594	4,598	3,605	6,111	5,453	6,575	2,905	1,082	774.8	771.3	2,436	2,189
2003	5,325	4,137	5,586	3,871	3,240	2,362	1,054	619.8	896.6	3,926	5,422	3,640
2004	5,246	3,164	3,066	2,770	3,856	3,196	1,238	1,861	2,925	2,404	4,526	6,429
2005	5,846	2,012	2,306	3,792	2,942	2,421	1,492	698	1,081	2,441	4,230	4,111
2006	8,435	3,754	2,075	3,267	4,367	3,836	1,355	700.2	851	1,189	10,360	4,228
2007	5,042	4,094	8,080	3,949	3,893	3,617	1,679	861.8	719.6	3,592	2,545	5,254
2008	3,080	3,592	3,310	2,982	7,722	6,346	3,127	1,591	1,056	1,350	8,238	3,425
2009	9,726	1,842	2,447	4,698	6,341	3,935	1,544	746.4	847	3,130	6,394	3,095
2010	4,973	2,028	2,612	3,674	5,090	5,831	1,905	750.7	2,082	2,297	4,149	6,443
2011	10,380	4,681	4,911	6,752	5,795	5,917	3,659	1,487	980.2	2,633	3,886	3,128
2012	4,525	5,837	4,635	5,523	6,113	6,595	3,289	1,067	695.9	2,718	5,046	4,454
2013	3,430	3,599	5,283	7,328	5,974	4,038	1,654	794.8	1,889	2,897	4,091	4,152
2014	4,531	4,191	8,907	5,585	5,731	3,360	1,987	1,037	1,264	3,218	6,934	4,988
2015	7,467	4,993	3,522	2,937	1,788	955.5	568	534.2	1,025	2,011	8,703	7,328
2016	4,900	7,112	5,010	3,943	3,102	2,833	1,559	693.3	936.2	4,456	4,962	3,178
2017	2,337	4,884	6,858	4,740	6,131	3,882	1,409	648.6	638.2	3,175	5,530	4,481
2018	6,235	6,579	3,099	6,428	5,263	2,462	1,399	690.8	760.8	1,601	5,734	4,655
2019	4,610	2,295	2,182	4,797	3,052	1,859	1,305	756.9	1,385	4,475	2,547	4,881
2020	9,427	11,060	3,528	4,414	5,980	4,327	1,813	809.7	1,094	3,880	4,889	5,078
2021	7,265	4,850	3,179	3,537	4,791	4,487	1,468	845.9	1,168	3,354	8,414	5,082
2022	8,019	3,347	7,263	3,510	5,531	6,949	2,169	842.2	596.7	1,046	3,469	3,891
2023	3,198
Mean of monthly Discharge	5,270	4,410	3,930	4,350	4,970	4,390	2,220	1,060	1,310	2,590	5,000	5,290
** No Incomplete data have been used for statistical calculation

00060, Discharge, cubic feet per second,

YEAR

Monthly mean in ft3/s (Calculation Period: 1929-03-01 -> 2023-01-31)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

1929

3,850

3,471

6,357

5,959

1,926

692.7

520.7

760.8

792.1

3,935

1930

1,923

6,781

3,508

4,044

3,428

3,000

962.6

491.8

546.8

2,763

2,227

1,874

1931

5,287

3,418

4,718

4,846

4,279

3,496

1,196

508.6

1,247

2,826

4,403

3,530

1932

5,176

5,541

9,979

6,797

5,623

5,452

3,324

1,341

1,181

3,080

12,800

6,645

1933

6,958

2,383

4,362

4,056

5,725

7,741

4,000

1,424

3,024

5,760

6,712

14,530

1934

9,550

4,003

5,122

4,244

3,178

1,567

1,067

773.4

1,106

4,434

6,381

5,319

1935

8,530

3,974

3,282

2,842

3,626

3,584

2,126

1,001

779.1

993.7

2,681

3,199

1936

6,055

2,207

4,228

4,934

7,847

5,570

1,881

716.1

963.2

870.9

667

5,688

1937

1,291

3,233

4,052

5,414

5,646

6,856

2,197

1,059

794.1

1,909

8,851

6,019

1938

4,814

2,065

2,946

5,962

4,585

2,780

1,090

582.8

493.4

1,196

3,942

6,105

1939

6,376

3,516

3,711

4,112

5,031

4,906

2,811

901.7

851.1

2,325

3,509

6,277

1940

3,019

4,640

5,089

4,043

4,422

1,803

839.5

625.6

517.4

2,012

2,925

3,894

1941

2,941

2,001

1,933

2,230

3,072

2,250

965.6

523.4

3,032

4,309

3,401

5,929

1942

2,222

2,648

2,646

3,677

4,117

6,035

2,206

899.1

575.9

1,018

6,979

6,000

1943

3,110

3,772

3,638

5,546

4,921

4,881

2,713

1,023

791.1

1,869

2,101

5,123

1944

2,511

2,658

2,721

3,869

5,224

3,263

1,153

733.6

2,563

1,664

3,402

3,883

1945

6,161

4,860

3,740

4,144

6,588

3,626

1,472

615.3

2,574

3,309

6,693

4,835

1946

4,861

3,862

4,315

4,655

6,333

6,233

3,081

1,028

811.5

3,059

4,081

8,690

1947

6,198

5,674

3,833

5,601

4,265

3,994

1,846

898.9

1,614

5,811

8,282

5,634

1948

4,632

3,981

3,207

4,037

7,238

7,372

2,740

2,015

1,933

2,739

5,494

4,168

1949

2,118

4,264

4,546

4,747

7,191

4,541

3,087

1,528

1,228

3,520

5,279

5,427

1950

4,729

5,545

7,093

5,235

5,872

7,850

4,410

2,133

1,109

4,281

6,642

7,502

1951

5,203

9,219

3,012

3,800

4,955

3,524

1,376

578.5

718.8

4,374

3,424

3,362

1952

2,098

4,030

2,686

4,392

5,578

3,884

2,327

790.2

593.4

479.3

619

1,756

1953

11,140

6,169

3,012

4,413

5,302

4,703

2,955

1,126

871.4

2,518

5,133

9,176

1954

5,017

6,044

3,181

3,962

4,856

6,254

4,221

2,030

2,150

1,843

4,716

3,518

1955

3,172

4,684

2,212

4,208

5,676

7,871

5,629

2,226

1,125

5,444

7,885

7,906

1956

4,544

2,279

3,817

5,704

7,103

6,273

3,698

1,138

1,436

4,722

4,558

8,388

1957

2,116

3,674

4,287

4,929

5,701

3,452

1,534

910.4

576

1,026

2,625

4,547

1958

5,208

4,974

2,446

4,022

4,152

2,246

895.2

516.6

1,170

3,067

8,931

7,641

1959

8,424

3,323

4,211

6,793

5,985

5,272

2,617

1,019

5,128

5,248

9,342

6,965

1960

2,845

4,241

3,137

4,692

6,040

4,627

1,594

1,197

1,235

3,153

6,894

3,495

1961

5,824

8,219

5,149

5,244

5,661

4,282

1,518

613

1,086

3,209

3,759

5,475

1962

6,380

2,996

2,435

4,685

3,947

3,847

2,404

1,628

1,170

2,225

5,454

5,724

1963

3,734

5,406

2,794

3,987

3,411

2,688

1,795

966.8

893

1,786

5,426

4,063

1964

6,002

3,645

3,695

4,226

5,677

8,603

4,991

2,992

2,829

2,914

3,765

6,382

1965

7,093

6,898

3,054

4,248

4,139

3,348

1,734

1,106

1,432

2,181

3,214

3,067

1966

4,444

2,640

3,531

4,830

5,440

4,260

2,969

1,072

800.2

2,304

3,645

7,172

1967

8,027

4,954

3,177

2,258

4,672

5,097

1,807

762.7

641.7

3,854

3,510

7,102

1968

6,482

6,579

3,726

3,938

4,635

4,737

1,642

1,536

2,899

3,613

4,932

5,106

1969

6,441

2,585

3,250

4,701

6,572

5,171

2,123

1,028

2,010

2,790

2,488

3,784

1970

5,487

4,089

3,055

4,176

4,065

3,903

1,440

745.1

1,890

2,332

4,048

4,213

1971

7,557

6,529

3,860

3,521

6,729

5,883

4,778

1,553

1,506

2,488

5,389

4,775

1972

6,044

8,296

9,780

5,196

7,578

6,846

4,784

1,640

2,586

1,368

2,577

6,839

1973

4,707

1,860

2,319

2,518

3,671

3,321

1,391

575.3

816.2

2,192

4,197

6,394

1974

8,595

4,627

5,208

4,886

5,857

8,983

5,126

2,045

1,036

628.6

3,033

5,335

1975

7,597

3,839

3,605

2,511

5,849

5,536

3,345

1,897

1,372

3,368

6,846

12,630

1976

8,261

3,515

2,473

3,871

5,508

4,376

3,336

2,056

1,259

1,115

2,521

3,350

1977

3,369

2,231

2,777

4,033

3,705

3,187

1,196

1,077

1,800

1,745

6,828

10,610

1978

3,652

3,029

3,084

3,111

4,188

3,051

1,465

1,170

3,069

1,372

3,822

4,258

1979

1,911

4,928

4,793

3,880

5,064

3,101

1,910

704.6

787.1

1,215

1,042

8,771

1980

3,020

3,946

3,616

4,895

3,514

3,050

1,639

1,052

2,358

981.8

5,545

8,273

1981

2,621

6,108

2,269

5,581

4,451

5,075

1,956

932.9

1,341

3,218

2,597

4,466

1982

5,855

9,743

4,590

2,978

4,612

4,848

2,644

1,129

1,716

2,181

3,170

5,305

1983

7,158

3,437

3,739

2,826

3,514

3,032

3,484

1,322

2,411

1,312

6,797

3,166

1984

8,973

3,540

4,013

3,274

5,585

5,522

2,539

1,060

1,113

1,706

4,487

3,969

1985

2,286

2,384

2,146

5,612

5,348

5,391

1,577

770.3

1,142

4,427

5,745

1,694

1986

3,811

4,716

3,824

2,813

4,798

2,390

1,601

749.3

1,198

1,552

7,490

2,825

1987

2,685

3,688

4,467

3,754

3,855

1,903

963.1

618.7

518.2

406.9

967.3

2,853

1988

2,405

3,804

4,372

6,143

4,827

3,329

1,841

860.4

1,221

3,551

5,632

4,613

1989

5,587

2,498

3,761

6,268

4,315

3,517

1,587

1,007

701.3

1,180

7,100

5,561

1990

6,905

5,513

4,165

5,192

4,353

6,210

2,183

994.5

794.5

4,149

12,850

5,154

1991

5,655

7,820

3,330

5,179

3,738

3,946

2,182

1,038

752.8

635.6

4,496

5,394

1992

5,140

3,852

2,058

2,843

2,434

1,362

1,224

714.8

1,865

1,361

4,099

3,325

1993

3,623

2,119

4,031

4,676

6,197

3,911

2,476

1,320

756.4

974.4

1,493

3,707

1994

4,170

2,166

4,144

4,082

3,001

3,078

1,487

704.1

963.5

2,124

3,459

6,773

1995

3,502

8,058

3,748

3,063

3,713

2,581

1,551

1,318

729.4

4,302

11,960

7,725

1996

7,375

9,553

2,763

4,640

4,520

2,581

1,361

1,167

1,387

3,878

5,409

4,518

1997

7,370

5,590

7,246

5,563

7,273

5,930

4,440

1,306

2,005

4,345

3,401

3,456

1998

5,190

2,867

3,632

2,678

4,353

3,118

1,431

669.1

483.7

1,528

6,315

7,730

1999

6,784

4,282

3,584

2,980

4,793

6,334

4,506

1,715

902.6

2,128

7,630

8,585

2000

3,325

3,071

3,084

4,756

5,027

5,241

1,905

936.7

1,582

2,709

1,870

2,119

2001

2,639

2,087

2,995

3,650

4,491

3,414

1,635

982.8

674.4

3,433

6,011

5,649

2002

5,594

4,598

3,605

6,111

5,453

6,575

2,905

1,082

774.8

771.3

2,436

2,189

2003

5,325

4,137

5,586

3,871

3,240

2,362

1,054

619.8

896.6

3,926

5,422

3,640

2004

5,246

3,164

3,066

2,770

3,856

3,196

1,238

1,861

2,925

2,404

4,526

6,429

2005

5,846

2,012

2,306

3,792

2,942

2,421

1,492

698

1,081

2,441

4,230

4,111

2006

8,435

3,754

2,075

3,267

4,367

3,836

1,355

700.2

851

1,189

10,360

4,228

2007

5,042

4,094

8,080

3,949

3,893

3,617

1,679

861.8

719.6

3,592

2,545

5,254

2008

3,080

3,592

3,310

2,982

7,722

6,346

3,127

1,591

1,056

1,350

8,238

3,425

2009

9,726

1,842

2,447

4,698

6,341

3,935

1,544

746.4

847

3,130

6,394

3,095

2010

4,973

2,028

2,612

3,674

5,090

5,831

1,905

750.7

2,082

2,297

4,149

6,443

2011

10,380

4,681

4,911

6,752

5,795

5,917

3,659

1,487

980.2

2,633

3,886

3,128

2012

4,525

5,837

4,635

5,523

6,113

6,595

3,289

1,067

695.9

2,718

5,046

4,454

2013

3,430

3,599

5,283

7,328

5,974

4,038

1,654

794.8

1,889

2,897

4,091

4,152

2014

4,531

4,191

8,907

5,585

5,731

3,360

1,987

1,037

1,264

3,218

6,934

4,988

2015

7,467

4,993

3,522

2,937

1,788

955.5

568

534.2

1,025

2,011

8,703

7,328

2016

4,900

7,112

5,010

3,943

3,102

2,833

1,559

693.3

936.2

4,456

4,962

3,178

2017

2,337

4,884

6,858

4,740

6,131

3,882

1,409

648.6

638.2

3,175

5,530

4,481

2018

6,235

6,579

3,099

6,428

5,263

2,462

1,399

690.8

760.8

1,601

5,734

4,655

2019

4,610

2,295

2,182

4,797

3,052

1,859

1,305

756.9

1,385

4,475

2,547

4,881

2020

9,427

11,060

3,528

4,414

5,980

4,327

1,813

809.7

1,094

3,880

4,889

5,078

2021

7,265

4,850

3,179

3,537

4,791

4,487

1,468

845.9

1,168

3,354

8,414

5,082

2022

8,019

3,347

7,263

3,510

5,531

6,949

2,169

842.2

596.7

1,046

3,469

3,891

2023

3,198

Mean of
monthly
Discharge

5,270

4,410

3,930

4,350

4,970

4,390

2,220

1,060

1,310

2,590

5,000

5,290

** No Incomplete data have been used for statistical calculation

USGS 12149000 SNOQUALMIE RIVER NEAR CARNATION, WA