| West Point Inflow Percentiles by Month | ||||||||||||
| Period of record May 1975 - May 2026 | ||||||||||||
| Month | P05 | P10 | P20 | P30 | P40 | P50 | P60 | P70 | P80 | P90 | P95 | Avg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | 1634 | 1916 | 2380 | 2857 | 3430 | 4123 | 5003 | 6359 | 8459 | 12014 | 15889 | 5955 |
| Feb | 1828 | 2188 | 2751 | 3346 | 4072 | 4992 | 6229 | 7893 | 9915 | 13002 | 17998 | 7015 |
| Mar | 2131 | 2451 | 3040 | 3625 | 4354 | 5318 | 6604 | 8139 | 10785 | 13783 | 20059 | 7603 |
| Apr | 1674 | 2072 | 2693 | 3302 | 3927 | 4764 | 5741 | 7063 | 9095 | 11603 | 14716 | 6267 |
| May | 1219 | 1510 | 2014 | 2586 | 3153 | 3778 | 4532 | 5519 | 6772 | 9117 | 12208 | 4968 |
| Jun | 981 | 1219 | 1664 | 2118 | 2507 | 3025 | 3532 | 4246 | 5143 | 6802 | 8620 | 3741 |
| Jul | 890 | 1164 | 1525 | 1896 | 2326 | 2713 | 3222 | 3921 | 4827 | 6767 | 9181 | 3665 |
| Aug | 702 | 925 | 1318 | 1725 | 2075 | 2534 | 3119 | 3806 | 4725 | 6204 | 7666 | 3218 |
| Sep | 691 | 886 | 1142 | 1475 | 1793 | 2182 | 2661 | 3158 | 3996 | 5682 | 7700 | 3138 |
| Oct | 727 | 926 | 1191 | 1492 | 1817 | 2180 | 2671 | 3151 | 3883 | 5603 | 7826 | 3057 |
| Nov | 912 | 1220 | 1578 | 1913 | 2239 | 2568 | 2978 | 3588 | 4670 | 6925 | 9703 | 3714 |
| Dec | 1277 | 1500 | 1847 | 2222 | 2713 | 3230 | 3835 | 4751 | 6279 | 9699 | 13341 | 4790 |