Monthly average, September 2026
Spot price of diammonium phosphate, free on board at the US Gulf.
| Unit | Price (USD) |
|---|---|
| metric ton | 800.60 |
| Year | Average | High | Low | Change | In today's dollars |
|---|---|---|---|---|---|
| 2026 | 728.67 | 800.60 | 619.20 | +6.3% | 738.97 |
| 2025 | 685.23 | 795.10 | 582.70 | +21.6% | 717.14 |
| 2024 | 563.67 | 617.50 | 522.00 | +2.5% | — |
| 2023 | 550.07 | 637.00 | 454.60 | −28.8% | — |
| 2022 | 772.16 | 954.00 | 625.00 | +28.5% | — |
| 2021 | 600.97 | 745.00 | 421.30 | +92.4% | — |
| 2020 | 312.43 | 388.50 | 263.00 | +2.0% | — |
| 2019 | 306.37 | 382.10 | 238.20 | −22.1% | — |
| 2018 | 393.44 | 421.60 | 360.40 | +21.8% | — |
| 2017 | 323.04 | 357.30 | 308.00 | +2.3% | — |
| 2016 | 315.81 | 338.10 | 296.60 | −24.2% | — |
| 2015 | 416.63 | 444.10 | 340.60 | −3.0% | — |
| 2014 | 429.60 | 486.50 | 403.40 | +4.5% | — |
| 2013 | 410.98 | 467.60 | 334.40 | −14.4% | — |
| 2012 | 480.24 | 533.50 | 435.50 | −7.0% | — |
| 2011 | 516.29 | 597.60 | 410.00 | +13.1% | — |
| 2010 | 456.43 | 557.30 | 383.00 | +58.2% | — |
| 2009 | 288.47 | 331.50 | 256.10 | −66.5% | — |
| 2008 | 861.63 | 1,075.80 | 495.00 | +119.8% | — |
| 2007 | 391.96 | 512.50 | 249.20 | +70.5% | — |
| 2006 | 229.88 | 244.30 | 218.50 | +1.4% | — |
| 2005 | 226.80 | 246.40 | 207.10 | +10.8% | — |
| 2004 | 204.75 | 213.80 | 190.60 | +19.3% | — |
| 2003 | 171.68 | 187.50 | 149.80 | +12.8% | — |
| 2002 | 152.21 | 162.50 | 143.90 | +6.1% | — |
| 2001 | 143.51 | 159.10 | 133.10 | −2.8% | — |
| 2000 | 147.67 | 157.50 | 140.30 | −13.7% | — |
| 1999 | 171.11 | 181.80 | 147.50 | −8.4% | — |
| 1998 | 186.86 | 190.50 | 182.80 | −0.1% | — |
| 1997 | 186.99 | 188.50 | 185.50 | −5.6% | — |
| 1996 | 198.12 | 226.30 | 182.10 | −0.8% | — |
| 1995 | 199.77 | 229.20 | 180.80 | +24.5% | — |
| 1994 | 160.43 | 171.70 | 150.00 | +31.5% | — |
| 1993 | 122.02 | 150.40 | 112.80 | −11.5% | — |
| 1992 | 137.88 | 147.90 | 124.60 | −12.9% | — |
| 1991 | 158.26 | 166.00 | 143.50 | +2.3% | — |
| 1990 | 154.68 | 165.90 | 138.50 | −0.4% | — |
| 1989 | 155.29 | 181.00 | 137.50 | −13.8% | — |
| 1988 | 180.17 | 194.50 | 166.50 | +12.6% | — |
| 1987 | 160.00 | 174.00 | 140.00 | +15.8% | — |
| 1986 | 138.17 | 149.00 | 122.00 | −12.1% | — |
| 1985 | 157.17 | 179.50 | 146.50 | −10.5% | — |
| 1984 | 175.63 | 204.00 | 156.00 | +3.9% | — |
| 1983 | 169.08 | 190.00 | 150.50 | +1.5% | — |
| 1982 | 166.63 | 190.00 | 135.00 | −6.2% | — |
| 1981 | 177.63 | 227.50 | 122.50 | −20.1% | — |
| 1980 | 222.21 | 260.50 | 202.50 | +14.9% | — |
| 1979 | 193.33 | 247.50 | 153.00 | +38.3% | — |
| 1978 | 139.83 | 151.50 | 128.00 | +4.3% | — |
| 1977 | 134.08 | 148.00 | 123.00 | +11.8% | — |
| 1976 | 119.92 | 140.00 | 100.00 | −50.5% | — |
| 1975 | 242.50 | 396.00 | 150.00 | −27.1% | — |
| 1974 | 332.63 | 408.80 | 215.00 | +180.1% | — |
| 1973 | 118.75 | 132.50 | 105.00 | +30.5% | — |
| 1972 | 91.00 | 99.00 | 83.00 | +47.4% | — |
| 1971 | 61.75 | 66.00 | 57.50 | +14.4% | — |
| 1970 | 54.00 | 54.00 | 54.00 | −6.9% | — |
| 1969 | 58.00 | 58.00 | 58.00 | −4.1% | — |
| 1968 | 60.50 | 60.50 | 60.50 | −11.7% | — |
| 1967 | 68.50 | 68.50 | 68.50 | — | — |
Yearly averages of monthly prices. Today's dollars adjust for US consumer price inflation (CPI-U).
| Month | Price | Change |
|---|---|---|
| Sep 2026 | 800.60 | +0.9% |
| Aug 2026 | 793.50 | +1.6% |
| Jul 2026 | 781.30 | −0.3% |
| Jun 2026 | 783.80 | +1.9% |
| May 2026 | 769.50 | +6.1% |
| Apr 2026 | 725.30 | +10.2% |
| Mar 2026 | 658.30 | +5.1% |
| Feb 2026 | 626.50 | +1.2% |
| Jan 2026 | 619.20 | −1.3% |
| Dec 2025 | 627.50 | −11.4% |
| Nov 2025 | 708.30 | −6.1% |
| Oct 2025 | 754.00 | −3.4% |
| Sep 2025 | 780.60 | −1.8% |
| Aug 2025 | 795.10 | +8.0% |
| Jul 2025 | 736.00 | +2.9% |
| Jun 2025 | 715.40 | +6.9% |
| May 2025 | 669.20 | +5.4% |
| Apr 2025 | 635.00 | +3.2% |
| Mar 2025 | 615.10 | +1.9% |
| Feb 2025 | 603.80 | +3.6% |
| Jan 2025 | 582.70 | +2.5% |
| Dec 2024 | 568.30 | −1.1% |
| Nov 2024 | 574.50 | +0.2% |
| Oct 2024 | 573.40 | +3.4% |
The DAP fertilizer price averaged 800.60 USD / metric ton in September 2026, +2.6% against a year earlier. These are monthly benchmark prices; physical trades add freight, quality premiums and taxes.
The highest monthly price since 1967 was 1,075.80 USD / metric ton in July 2008; the lowest was 54.00 USD / metric ton in January 1970.
In today's dollars, the 2025 average of 685.23 USD / metric ton is worth about 717.14 USD / metric ton. The highest yearly average in today's dollars was 738.97 USD / metric ton in 2026.
Source: World Bank Commodity Price Data (The Pink Sheet), licensed under CC BY 4.0; inflation adjustment with US CPI-U from the Bureau of Labor Statistics.