Bank of England | Database Export source data
| Date | Monthly average Sterling overnight index average (SONIA) rate [a] [b] IUMASOIA |
|---|---|
| 31 Jan 20 | 0.7113 |
| 29 Feb 20 | 0.7104 |
| 31 Mar 20 | 0.3192 |
| 30 Apr 20 | 0.0659 |
| 31 May 20 | 0.0674 |
| 30 Jun 20 | 0.0646 |
| 31 Jul 20 | 0.0599 |
| 31 Aug 20 | 0.0562 |
| 30 Sep 20 | 0.0547 |
| 31 Oct 20 | 0.0538 |
| 30 Nov 20 | 0.0537 |
| 31 Dec 20 | 0.0492 |
| 31 Jan 21 | 0.0494 |
| 28 Feb 21 | 0.0486 |
| 31 Mar 21 | 0.0486 |
| 30 Apr 21 | 0.0486 |
| 31 May 21 | 0.0495 |
| 30 Jun 21 | 0.0498 |
| 31 Jul 21 | 0.0506 |
| 31 Aug 21 | 0.0504 |
| 30 Sep 21 | 0.05 |
| 31 Oct 21 | 0.0502 |
| 30 Nov 21 | 0.0468 |
| 31 Dec 21 | 0.1141 |
| 31 Jan 22 | 0.1958 |
| 28 Feb 22 | 0.4199 |
| 31 Mar 22 | 0.5623 |
| 30 Apr 22 | 0.6906 |
| 31 May 22 | 0.9158 |
| 30 Jun 22 | 1.0767 |
| 31 Jul 22 | 1.1908 |
| 31 Aug 22 | 1.622 |
| 30 Sep 22 | 1.8569 |
| 31 Oct 22 | 2.1857 |
| 30 Nov 22 | 2.8599 |
| 31 Dec 22 | 3.1779 |
| 31 Jan 23 | 3.4275 |
| 28 Feb 23 | 3.9021 |
| 31 Mar 23 | 4.0031 |
| 30 Apr 23 | 4.1774 |
| 31 May 23 | 4.3528 |
| 30 Jun 23 | 4.5872 |
| 31 Jul 23 | 4.9302 |
| 31 Aug 23 | 5.1609 |
| 30 Sep 23 | 5.1854 |
| 31 Oct 23 | 5.1871 |
| 30 Nov 23 | 5.1875 |
| 31 Dec 23 | 5.187 |
| 31 Jan 24 | 5.1875 |
| 29 Feb 24 | 5.1883 |
| 31 Mar 24 | 5.1891 |
| 30 Apr 24 | 5.1979 |
| 31 May 24 | 5.2 |
| 30 Jun 24 | 5.2 |
| 31 Jul 24 | 5.2 |
| 31 Aug 24 | 4.95 |
| 30 Sep 24 | 4.95 |
| 31 Oct 24 | 4.95 |
| 30 Nov 24 | 4.7476 |
| 31 Dec 24 | 4.7 |
| 31 Jan 25 | 4.7002 |
| 28 Feb 25 | 4.4919 |
| 31 Mar 25 | 4.4555 |
| 30 Apr 25 | 4.4577 |
| 31 May 25 | 4.2604 |
| 30 Jun 25 | 4.2144 |
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