Bank of England | Database Export source data
| Date | End month Sterling overnight index average (SONIA) rate [a] [b] IUMSOIA |
|---|---|
| 31 Jan 10 | 0.4679 |
| 28 Feb 10 | 0.4708 |
| 31 Mar 10 | 0.4707 |
| 30 Apr 10 | 0.4769 |
| 31 May 10 | 0.4833 |
| 30 Jun 10 | 0.5005 |
| 31 Jul 10 | 0.4916 |
| 31 Aug 10 | 0.5007 |
| 30 Sep 10 | 0.5227 |
| 31 Oct 10 | 0.5124 |
| 30 Nov 10 | 0.524 |
| 31 Dec 10 | 0.5564 |
| 31 Jan 11 | 0.5108 |
| 28 Feb 11 | 0.5136 |
| 31 Mar 11 | 0.5396 |
| 30 Apr 11 | 0.5572 |
| 31 May 11 | 0.5418 |
| 30 Jun 11 | 0.7368 |
| 31 Jul 11 | 0.5562 |
| 31 Aug 11 | 0.567 |
| 30 Sep 11 | 0.6487 |
| 31 Oct 11 | 0.527 |
| 30 Nov 11 | 0.5327 |
| 31 Dec 11 | 0.4578 |
| 31 Jan 12 | 0.51 |
| 29 Feb 12 | 0.5047 |
| 31 Mar 12 | 0.4775 |
| 30 Apr 12 | 0.4785 |
| 31 May 12 | 0.4939 |
| 30 Jun 12 | 0.4586 |
| 31 Jul 12 | 0.4553 |
| 31 Aug 12 | 0.4298 |
| 30 Sep 12 | 0.3938 |
| 31 Oct 12 | 0.4088 |
| 30 Nov 12 | 0.4327 |
| 31 Dec 12 | 0.4275 |
| 31 Jan 13 | 0.4082 |
| 28 Feb 13 | 0.4339 |
| 31 Mar 13 | 0.4203 |
| 30 Apr 13 | 0.4337 |
| 31 May 13 | 0.4204 |
| 30 Jun 13 | 0.3919 |
| 31 Jul 13 | 0.4299 |
| 31 Aug 13 | 0.3979 |
| 30 Sep 13 | 0.411 |
| 31 Oct 13 | 0.4184 |
| 30 Nov 13 | 0.4188 |
| 31 Dec 13 | 0.3057 |
| 31 Jan 14 | 0.4104 |
| 28 Feb 14 | 0.3904 |
| 31 Mar 14 | 0.3342 |
| 30 Apr 14 | 0.3984 |
| 31 May 14 | 0.4169 |
| 30 Jun 14 | 0.3807 |
| 31 Jul 14 | 0.4045 |
| 31 Aug 14 | 0.4005 |
| 30 Sep 14 | 0.4027 |
| 31 Oct 14 | 0.4227 |
| 30 Nov 14 | 0.4225 |
| 31 Dec 14 | 0.3565 |
| 31 Jan 15 | 0.4195 |
| 28 Feb 15 | 0.4442 |
| 31 Mar 15 | 0.4217 |
| 30 Apr 15 | 0.4529 |
| 31 May 15 | 0.4506 |
| 30 Jun 15 | 0.3947 |
| 31 Jul 15 | 0.4481 |
| 31 Aug 15 | 0.4526 |
| 30 Sep 15 | 0.3518 |
| 31 Oct 15 | 0.4482 |
| 30 Nov 15 | 0.4539 |
| 31 Dec 15 | 0.3475 |
| 31 Jan 16 | 0.4517 |
| 29 Feb 16 | 0.4545 |
| 31 Mar 16 | 0.4128 |
| 30 Apr 16 | 0.4584 |
| 31 May 16 | 0.4542 |
| 30 Jun 16 | 0.4416 |
| 31 Jul 16 | 0.4534 |
| 31 Aug 16 | 0.2018 |
| 30 Sep 16 | 0.1624 |
| 31 Oct 16 | 0.1999 |
| 30 Nov 16 | 0.2024 |
| 31 Dec 16 | 0.1618 |
| 31 Jan 17 | 0.2078 |
| 28 Feb 17 | 0.203 |
| 31 Mar 17 | 0.174 |
| 30 Apr 17 | 0.2108 |
| 31 May 17 | 0.2087 |
| 30 Jun 17 | 0.194 |
| 31 Jul 17 | 0.2034 |
| 31 Aug 17 | 0.2109 |
| 30 Sep 17 | 0.1991 |
| 31 Oct 17 | 0.2096 |
| 30 Nov 17 | 0.4623 |
| 31 Dec 17 | 0.4123 |
| 31 Jan 18 | 0.4668 |
| 28 Feb 18 | 0.4612 |
| 31 Mar 18 | 0.4435 |
| 30 Apr 18 | 0.4507 |
| 31 May 18 | 0.4503 |
| 30 Jun 18 | 0.4399 |
| 31 Jul 18 | 0.4503 |
| 31 Aug 18 | 0.7042 |
| 30 Sep 18 | 0.6964 |
| 31 Oct 18 | 0.7002 |
| 30 Nov 18 | 0.7002 |
| 31 Dec 18 | 0.6998 |
| 31 Jan 19 | 0.7034 |
| 28 Feb 19 | 0.705 |
| 31 Mar 19 | 0.7036 |
| 30 Apr 19 | 0.7109 |
| 31 May 19 | 0.7078 |
| 30 Jun 19 | 0.706 |
| 31 Jul 19 | 0.7081 |
| 31 Aug 19 | 0.7103 |
| 30 Sep 19 | 0.7101 |
| 31 Oct 19 | 0.7106 |
| 30 Nov 19 | 0.7123 |
| 31 Dec 19 | 0.7098 |
| 31 Jan 20 | 0.7117 |
| 29 Feb 20 | 0.7098 |
| 31 Mar 20 | 0.0729 |
| 30 Apr 20 | 0.0666 |
| 31 May 20 | 0.0679 |
| 30 Jun 20 | 0.0603 |
| 31 Jul 20 | 0.0603 |
| 31 Aug 20 | 0.0545 |
| 30 Sep 20 | 0.0509 |
| 31 Oct 20 | 0.0547 |
| 30 Nov 20 | 0.054 |
| 31 Dec 20 | 0.0394 |
| 31 Jan 21 | 0.0529 |
| 28 Feb 21 | 0.0512 |
| 31 Mar 21 | 0.0466 |
| 30 Apr 21 | 0.0509 |
| 31 May 21 | 0.0516 |
| 30 Jun 21 | 0.0466 |
| 31 Jul 21 | 0.0506 |
| 31 Aug 21 | 0.0502 |
| 30 Sep 21 | 0.0479 |
| 31 Oct 21 | 0.0503 |
| 30 Nov 21 | 0.0455 |
| 31 Dec 21 | 0.1906 |
| 31 Jan 22 | 0.1989 |
| 28 Feb 22 | 0.4451 |
| 31 Mar 22 | 0.6896 |
| 30 Apr 22 | 0.6907 |
| 31 May 22 | 0.941 |
| 30 Jun 22 | 1.1874 |
| 31 Jul 22 | 1.1909 |
| 31 Aug 22 | 1.6896 |
| 30 Sep 22 | 2.1901 |
| 31 Oct 22 | 2.1838 |
| 30 Nov 22 | 2.9273 |
| 31 Dec 22 | 3.4282 |
| 31 Jan 23 | 3.4269 |
| 28 Feb 23 | 3.927 |
| 31 Mar 23 | 4.1777 |
| 30 Apr 23 | 4.1792 |
| 31 May 23 | 4.4278 |
| 30 Jun 23 | 4.9286 |
| 31 Jul 23 | 4.9304 |
| 31 Aug 23 | 5.1852 |
| 30 Sep 23 | 5.1867 |
| 31 Oct 23 | 5.1861 |
| 30 Nov 23 | 5.1881 |
| 31 Dec 23 | 5.1869 |
| 31 Jan 24 | 5.1881 |
| 29 Feb 24 | 5.1885 |
| 31 Mar 24 | 5.1911 |
Notes:
[a] On 23 April 2018, SONIA was reformed. For further information on the changes made, see the `Background on SONIA reform' section of the following page: www.bankofengland.co.uk/markets/sonia-benchmark
[b] Bank of England SONIA disclaimer. For further information on the disclaimer, see the `Bank of England Database ' section of the following page: https://www.bankofengland.co.uk/legal