2000 California Hydrologic Data Report
11289651 TUOLUMNE RIVER BELOW LA GRANGE DAM, NEAR LA GRANGE, CA.
TUOLUMNE RIVER, MODESTO CANAL NEAR LA GRANGE, AND TURLOCK CANAL NEAR LA GRANGE, CA
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 1580 1980 364 458 517 4270 3460 2780 3040 3070 3830 1660
2 1200 1540 527 373 380 4440 3430 3320 2860 2890 3730 1740
3 762 876 792 369 402 4660 3950 3960 2620 2870 3650 1260
4 627 772 585 370 380 6760 3930 4160 2270 2960 2850 1550
5 1430 772 417 545 401 5550 3780 4280 2600 2920 2730 1630
6 1830 795 382 679 405 6010 3910 4230 2850 3530 2950 2080
7 1630 757 408 584 381 6950 3570 4220 2910 3400 2500 2880
8 1590 848 399 472 384 7020 3860 4130 3560 3750 3100 2610
9 1330 612 850 504 378 6960 3930 4200 2900 3530 3260 2100
10 837 827 1560 800 408 6840 3990 4190 2640 3440 3190 1580
11 1080 515 1910 604 408 6810 4360 3760 2710 3290 3110 2180
12 1120 410 2520 860 412 6810 4200 3390 3300 2760 3600 2080
13 887 390 2930 844 425 6730 4380 3190 3240 2950 3250 2460
14 852 413 1220 991 1300 6770 4350 2920 3730 3140 3460 2460
15 1330 390 410 739 2190 6960 4330 2990 3490 2830 3510 1990
16 1130 392 402 770 3380 6980 4280 2060 2300 2860 3820 1480
17 1040 427 463 966 4430 6540 4300 2730 1880 2950 3670 2100
18 1290 413 508 971 4220 5550 4150 2790 2000 3210 3450 2560
19 1350 390 603 458 4280 6740 3440 3270 2230 3110 3150 2810
20 623 369 422 441 4070 5280 2280 3210 2680 3240 3280 2590
21 893 400 376 394 4200 4180 1430 2220 3010 3080 3670 2080
22 1230 372 406 370 4430 4210 1310 3340 2540 2780 3850 2500
23 1450 368 394 388 4280 4270 1320 2100 2320 3050 3620 1720
24 1280 426 411 385 4520 4020 1370 2520 2220 3260 3310 1570
25 1650 385 388 436 4260 3760 1660 1990 3080 3560 3300 2370
26 1920 408 372 359 4350 3840 1770 2310 2830 3380 3230 2420
27 2060 374 362 388 4500 3790 2690 2490 3300 3520 2640 1520
28 2020 376 398 702 4250 3590 2810 2050 3410 3750 3300 1540
29 2100 384 380 378 4350 3840 2850 1860 3180 3560 3080 1450
30 1430 382 366 400 --- 4210 2980 2040 2170 3830 2940 1290
31 1500 --- 453 406 --- 4150 --- 2370 --- 3780 2150 ---
TOTAL 41051 17763 21978 17404 68291 168490 98070 95070 83870 100250 101180 60260
MEAN 1324 592 709 561 2355 5435 3269 3067 2796 3234 3264 2009
MAX 2100 1980 2930 991 4520 7020 4380 4280 3730 3830 3850 2880
MIN 623 368 362 359 378 3590 1310 1860 1880 2760 2150 1260
AC-FT 81420 35230 43590 34520 135500 334200 194500 188600 166400 198800 200700 119500
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1971 - 2000, BY WATER YEAR (WY)
MEAN 1366 815 1340 1851 2272 2805 3302 3353 2972 3080 2566 1829
MAX 4693 2383 5327 13630 8885 6677 9873 11840 7644 6670 4715 5429
(WY) 1984 1983 1983 1997 1997 1983 1983 1983 1983 1983 1983 1983
MIN 107 35.9 115 76.8 97.8 230 921 262 595 664 606 305
(WY) 1978 1978 1989 1978 1989 1992 1992 1977 1992 1992 1992 1977
SUMMARY STATISTICS FOR 1999 CALENDAR YEAR FOR 2000 WATER YEAR WATER YEARS 1971 - 2000
ANNUAL TOTAL 966569 873677
ANNUAL MEAN 2648 2387 2309
HIGHEST ANNUAL MEAN 6186 1983
LOWEST ANNUAL MEAN 442 1992
HIGHEST DAILY MEAN 8660 Feb 12 7020 Mar 8 50100 Jan 3 1997
LOWEST DAILY MEAN 362 Dec 27 359 Jan 26 .45 Nov 2 1970
ANNUAL SEVEN-DAY MINIMUM 382 Nov 25 382 Nov 25 .61 Oct 29 1970
ANNUAL RUNOFF (AC-FT) 1917000 1733000 1673000
10 PERCENT EXCEEDS 4510 4260 4620
50 PERCENT EXCEEDS 2600 2440 1950
90 PERCENT EXCEEDS 427 397 263
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