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AMERICAN RIVER - FOLSOM LAKE (FOLC1)
| Latitude: 38.71º N | Longitude: 121.16º W | Elevation: 350 Feet | | | |
| Location: Sacramento County in California | Bulletin Group: Lower Sacramento | River Group: American |
| Issuance Time: | Feb 23 2026 at 8:34 AM PST |
# Tabular Seasonal Trend Plot for FOLC1
#
# File Generation Time: 02/23/2026 08:34 AM PST
# Interval: 1 Day
#
# Latest Forecast April-July Percent of Average: 62 % ( 732 kaf )
# 30 Year April-July Volume Mean: 1190 kaf
#
# Peak April-July Volume and Date: MM kaf on MM
# Peak Water Year Volume and Date: 69.6 kaf on 12/23/2025
#
# Min 90% 75% 50% 25% 10% Max
# Exceed Exceed Exceed Exceed Exceed Exceed Exceed Raw Obs Raw Avg
# Apr-Jul Apr-Jul Apr-Jul Apr-Jul Apr-Jul Apr-Jul Apr-Jul Apr-Jul Apr-Jul Raw Daily
# Date Forecast Forecast Forecast Forecast Forecast Forecast Forecast To Date To Date Observation
# (mm/dd/YYYY) (kaf) (kaf) (kaf) (kaf) (kaf) (kaf) (kaf) (kaf) (kaf) (kaf)
# -----------------------------------------------------------------------------------------------------------------
10/01/2025 156 490 723 1080 1740 2340 2530 0.251905
10/02/2025 158 492 720 1080 1740 2340 2530 0.853566
10/03/2025 156 490 720 1080 1730 2330 2530 2.821364
10/04/2025 159 493 726 1080 1740 2330 2530 1.998045
10/05/2025 156 492 717 1080 1740 2330 2530 1.318863
10/06/2025 156 491 716 1080 1740 2330 2530 0.671250
10/07/2025 156 489 713 1080 1730 2330 2530 0.778028
10/08/2025 161 495 722 1080 1740 2330 2530 0.986379
10/09/2025 164 500 724 1080 1740 2340 2540 0.320004
10/10/2025 163 492 725 1080 1740 2340 2530 0.519429
10/11/2025 169 502 738 1090 1740 2340 2540 0.794144
10/12/2025 167 488 724 1080 1740 2330 2540 0.582405
10/13/2025 162 488 725 1080 1740 2330 2530 0.270500
10/14/2025 162 484 709 1080 1740 2330 2530 0.563727
10/15/2025 158 484 700 1080 1740 2330 2530 0.960922
10/16/2025 158 483 692 1080 1730 2330 2530 0.964889
10/17/2025 161 484 720 1080 1730 2330 2530 0.801830
10/18/2025 162 482 714 1080 1730 2330 2530 0.836376
10/19/2025 172 486 715 1080 1730 2340 2530 1.343077
10/20/2025 164 484 710 1080 1730 2330 2530 0.999271
10/21/2025 170 485 700 1080 1730 2340 2530 0.849846
10/22/2025 165 484 697 1080 1730 2320 2560 0.478603
10/23/2025 159 481 683 1080 1730 2320 2510 0.278021
10/24/2025 157 481 670 1070 1730 2320 2540 0.088926
10/25/2025 156 480 670 1070 1730 2310 2500 0.937948
10/26/2025 154 478 663 1070 1730 2310 2490 0.315460
10/27/2025 153 472 646 1070 1730 2310 2470 0.967700
10/28/2025 153 471 647 1050 1730 2310 2490 1.369359
10/29/2025 154 472 644 1050 1730 2300 2460 1.090677
10/30/2025 154 473 648 1050 1730 2300 2480 0.764391
10/31/2025 156 481 652 1050 1730 2300 2450 0.485874
11/01/2025 159 484 670 1060 1730 2310 2460 0.375625
11/02/2025 160 484 678 1070 1730 2320 2500 0.640835
11/03/2025 161 491 692 1050 1730 2330 2460 0.667612
11/04/2025 164 483 679 1080 1730 2320 2490 -0.623315
11/05/2025 166 492 688 1100 1730 2320 2480 0.382155
11/06/2025 163 493 675 1070 1730 2300 2470 1.422913
11/07/2025 164 496 675 1060 1730 2300 2450 1.622255
11/08/2025 168 499 708 1070 1730 2310 2460 0.970592
11/09/2025 185 510 756 1080 1730 2360 2460 1.044148
11/10/2025 177 479 705 1070 1730 2300 2450 1.357622
11/11/2025 167 473 665 1030 1730 2260 2450 1.010758
11/12/2025 171 508 680 1060 1730 2260 2450 0.432238
11/13/2025 180 524 699 1060 1730 2290 2450 -0.121985
11/14/2025 177 502 728 1040 1730 2220 2450 5.188257
11/15/2025 187 554 707 1060 1750 2280 2440 13.046059
11/16/2025 173 515 698 1040 1740 2250 2460 5.807523
11/17/2025 175 522 667 1010 1740 2210 2440 8.750046
11/18/2025 179 497 675 1000 1740 2200 2430 8.589463
11/19/2025 169 491 666 961 1740 2200 2400 4.428495
11/20/2025 165 495 665 964 1740 2200 2410 3.381124
11/21/2025 171 494 676 967 1740 2190 2440 3.728897
11/22/2025 163 471 651 964 1740 2190 2390 1.995897
11/23/2025 160 462 667 953 1730 2180 2390 2.030608
11/24/2025 151 460 641 979 1730 2170 2370 1.683248
11/25/2025 150 468 650 979 1790 2150 2370 1.716719
11/26/2025 147 454 624 975 1710 2160 2370 1.738538
11/27/2025 140 443 594 948 1670 2140 2370 2.240859
11/28/2025 125 429 586 948 1640 2120 2370 1.559858
11/29/2025 121 418 585 948 1600 2110 2370 1.444236
11/30/2025 133 436 600 948 1640 2130 2370 1.081999
12/01/2025 126 423 569 948 1610 2110 2370 1.250597
12/02/2025 115 400 550 936 1580 2110 2370 1.658123
12/03/2025 124 403 555 949 1580 2110 2370 0.688522
12/04/2025 125 426 568 955 1620 2120 2400 1.326301
12/05/2025 126 421 556 940 1590 2080 2360 1.636552
12/06/2025 105 386 544 918 1540 2060 2350 0.267441
12/07/2025 106 382 548 938 1550 2070 2350 1.091586
12/08/2025 100 376 543 859 1520 2050 2330 1.665561
12/09/2025 94.6 364 533 826 1520 2020 2320 1.315061
12/10/2025 107 383 557 850 1530 2060 2320 0.963733
12/11/2025 129 417 580 927 1570 2070 2320 0.752738
12/12/2025 129 418 585 882 1560 2040 2330 0.816294
12/13/2025 133 404 570 882 1550 2000 2340 1.310018
12/14/2025 139 409 591 905 1550 2030 2350 1.245059
12/15/2025 139 429 590 908 1570 2040 2380 0.622571
12/16/2025 145 405 587 855 1570 2030 2360 0.625134
12/17/2025 158 447 568 898 1600 2020 2350 0.809351
12/18/2025 174 466 621 938 1600 2070 2430 2.621608
12/19/2025 207 513 721 996 1650 2110 2480 3.523688
12/20/2025 195 517 692 951 1620 2060 2500 4.571388
12/21/2025 198 525 719 992 1640 2120 2580 9.543279
12/22/2025 200 552 720 997 1660 2110 2550 41.610194
12/23/2025 200 522 684 954 1660 2110 2460 69.562420
12/24/2025 196 516 660 963 1630 2120 2440 25.326732
12/25/2025 194 564 701 936 1670 2120 2490 43.475593
12/26/2025 203 511 651 902 1630 2060 2400 45.450663
12/27/2025 192 457 611 886 1600 2030 2320 35.838622
12/28/2025 196 467 613 864 1610 1990 2320 20.561374
12/29/2025 204 487 617 920 1600 2020 2320 13.785904
12/30/2025 211 551 693 975 1690 2140 2380 10.876110
12/31/2025 217 551 693 1010 1660 2100 2360 9.393277
01/01/2026 228 616 748 1030 1760 2130 2410 9.004346
01/02/2026 247 613 759 1020 1720 2110 2420 22.740248
01/03/2026 242 611 759 1010 1660 2030 2410 25.967899
01/04/2026 257 559 724 954 1590 1950 2320 38.253450
01/05/2026 260 541 702 905 1540 1880 2260 58.543167
01/06/2026 264 547 706 904 1530 1900 2240 35.340599
01/07/2026 265 547 712 896 1540 1910 2310 22.799920
01/08/2026 271 535 713 912 1510 1890 2250 17.205623
01/09/2026 271 550 712 905 1520 1890 2240 14.101529
01/10/2026 269 515 702 902 1480 1880 2240 11.759676
01/11/2026 268 516 693 900 1460 1870 2240 9.603115
01/12/2026 268 466 679 898 1430 1850 2230 9.384599
01/13/2026 268 467 697 900 1430 1860 2230 8.591366
01/14/2026 266 435 664 893 1410 1820 2220 8.034911
01/15/2026 269 429 650 894 1410 1810 2230 7.824908
01/16/2026 231 418 626 890 1390 1780 2200 8.394916
01/17/2026 223 416 645 889 1390 1780 2210 8.363924
01/18/2026 220 421 650 902 1380 1790 2240 7.447547
01/19/2026 226 397 617 881 1370 1770 2150 6.933160
01/20/2026 230 384 611 869 1370 1760 2140 6.764066
01/21/2026 234 376 611 883 1360 1760 2130 6.362241
01/22/2026 234 392 600 834 1360 1730 2120 6.328521
01/23/2026 228 366 582 832 1330 1710 2110 6.307943
01/24/2026 231 354 573 833 1330 1680 2120 6.017278
01/25/2026 221 336 535 828 1320 1620 2120 5.446443
01/26/2026 218 329 521 827 1290 1590 2110 5.794795
01/27/2026 218 338 516 789 1290 1580 2120 4.982387
01/28/2026 214 328 505 785 1280 1560 2120 4.488992
01/29/2026 212 324 491 780 1280 1550 2110 4.645192
01/30/2026 211 323 490 769 1280 1550 2110 4.566925
01/31/2026 216 330 500 758 1280 1540 2120 4.099315
02/01/2026 221 334 512 801 1290 1540 2130 4.526099
02/02/2026 228 341 537 836 1300 1560 2140 4.583869
02/03/2026 230 342 529 846 1300 1570 2140 3.767410
02/04/2026 233 344 515 805 1270 1540 2150 3.870552
02/05/2026 231 329 539 777 1320 1580 2160 4.092044
02/06/2026 232 342 516 825 1310 1620 2140 4.256591
02/07/2026 245 378 598 866 1370 1670 2220 4.301055
02/08/2026 251 388 589 855 1360 1690 2220 3.953199
02/09/2026 266 396 620 899 1360 1710 2260 3.455422
02/10/2026 263 417 624 886 1330 1670 2260 3.700055
02/11/2026 285 437 632 908 1370 1730 2320 4.516594
02/12/2026 323 476 671 944 1390 1750 2390 4.637588
02/13/2026 345 480 694 981 1460 1750 2380 4.588827
02/14/2026 373 515 735 1000 1480 1800 2420 4.016835
02/15/2026 396 527 752 1000 1500 1810 2430 3.690881
02/16/2026 439 594 756 1070 1600 1840 2450 3.974355
02/17/2026 450 595 723 1080 1490 1810 2470 16.563052
02/18/2026 443 575 714 977 1480 1720 2380 21.236591
02/19/2026 402 470 634 865 1310 1620 2210 13.572759
02/20/2026 371 443 586 795 1260 1570 2140 15.043360
02/21/2026 351 417 572 749 1220 1550 2070 10.637842
02/22/2026 344 422 556 739 1220 1540 2030 8.400950
02/23/2026 338 414 543 732 1190 1530 2030 7.371761
#
# -----------------------------------------------------------------------------------------------------------------
| Official 7 Day National Weather Service Forecast (CAZ017) |
Today: Mostly cloudy. Highs 63 to 69. Light winds.
Tonight: Cloudy. A slight chance of rain in the evening, then a chance of rain after midnight. Warmer. Lows around 53. Southeast winds up to 10 mph.
Tuesday: Rain. Highs around 60. Southeast winds 10 to 15 mph.
Tuesday Night: Cloudy. Rain in the evening, then a chance of rain after midnight. Lows around 54. South winds up to 15 mph.
Wednesday: Mostly cloudy. A slight chance of rain in the morning. Highs around 66. Light winds becoming west up to 10 mph in the afternoon.
Wednesday Night: Mostly cloudy. Lows around 48.
Thursday: Partly cloudy. Highs around 67.
Thursday Night through Saturday: Mostly cloudy. Lows around 50. Highs around 69.
Saturday Night and Sunday: Mostly cloudy with a slight chance of rain. Lows around 52. Highs 63 to 68. |
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