# 3-Month Treasury Rates SortPeriodAverage 3-Month T-Bill RateMay 2026 3.67% April 2026 3.68% March 2026 3.69% February 2026 3.68% January 2026 3.64% December 2025 3.65% November 2025 3.85% October 2025 3.90% September 2025 4.00% August 2025 4.21% **July 2025** 4.34% **June 2025** 4.32% May 2025 4.34% April 2025 4.30% March 2025 4.29% February 2025 4.31% January 2025 4.30% December 2024 4.36% November 2024 4.53% October 2024 4.63% September 2024 4.84% August 2024 5.19% July 2024 5.35% June 2024 5.39% May 2024 5.40% April 2024 5.39% March 2024 5.38% February 2024 5.38% January 2024 5.37% December 2023 5.39% November 2023 5.41% October 2023 5.47% September 2023 5.44% August 2023 5.43% July 2023 5.38% June 2023 5.27% May 2023 5.24% April 2023 5.01% March 2023 4.77% February 2023 4.75% January 2023 4.63% December 2022 4.31% November 2022 4.22% October 2022 3.78% September 2022 3.16% August 2022 2.66% July 2022 2.25% June 2022 1.50% May 2022 0.97% April 2022 0.76% March 2022 0.44% February 2022 0.22% January 2022 0.12% December 2021 0.06% November 2021 0.05% October 2021 0.06% September 2021 0.04% August 2021 0.05% July 2021 0.05% June 2021 0.03% May 2021 0.01% April 2021 0.02% March 2021 0.03% February 2021 0.04% January 2021 0.08% December 2020 0.08% November 2020 0.09% October 2020 0.10% September 2020 0.10% August 2020 0.10% July 2020 0.13% June 2020 0.16% May 2020 0.13% April 2020 0.13% March 2020 0.28% February 2020 1.54% January 2020 1.55% December 2019 1.56% November 2019 1.56% October 2019 1.66% September 2019 1.92% August 2019 1.98% July 2019 2.12% June 2019 2.20% May 2019 2.39% April 2019 2.42% March 2019 2.44% February 2019 2.43% January 2019 2.41% December 2018 2.40% November 2018 2.36% October 2018 2.28% September 2018 2.16% August 2018 2.06% July 2018 1.98% June 2018 1.93% May 2018 1.89% April 2018 1.78% March 2018 1.72% February 2018 1.59% January 2018 1.43%