On 21 October 1973 in London, England, United Kingdom it was partly cloudy, with clouds by evening, and the high was 12°C (54°F), the low was 6°C (43°F) and the precipitation was 0.0 mm (0.00 in).
| Time | Temperature | Precipitation |
|---|---|---|
| 00:00 | 12° | 0.0 mm |
| 01:00 | 12° | 0.0 mm |
| 02:00 | 12° | 0.0 mm |
| 03:00 | 11° | 0.0 mm |
| 04:00 | 10° | 0.0 mm |
| 05:00 | 10° | 0.0 mm |
| 06:00 | 9° | 0.0 mm |
| 07:00 | 9° | 0.0 mm |
| 08:00 | 9° | 0.0 mm |
| 09:00 | 10° | 0.0 mm |
| 10:00 | 10° | 0.0 mm |
| 11:00 | 12° | 0.0 mm |
| 12:00 | 12° | 0.0 mm |
| 13:00 | 12° | 0.0 mm |
| 14:00 | 12° | 0.0 mm |
| 15:00 | 12° | 0.0 mm |
| 16:00 | 11° | 0.0 mm |
| 17:00 | 11° | 0.0 mm |
| 18:00 | 11° | 0.0 mm |
| 19:00 | 9° | 0.0 mm |
| 20:00 | 9° | 0.0 mm |
| 21:00 | 8° | 0.0 mm |
| 22:00 | 8° | 0.0 mm |
| 23:00 | 6° | 0.0 mm |