September 2023
Weather in Letchworth Garden City, day by day
Mean temperature
18.9°C
Station average 15.4°C
Highest
32.6°C
On Sat 9 Sep
Lowest
9.1°C
On Sat 23 Sep
Rain
79.0 mm
164% of the station average, 48.2 mm
Wet days
12
With 0.2 mm of rain or more
Wettest day
40.8 mm
On Wed 20 Sep
Strongest gust
25 mph
On Tue 19 Sep
Highest pressure
1026.3 hPa
Lowest 991.4 hPa
How it compares
The warmest September of the 17 on record.
The 2nd wettest September of the 17 on record.
Day by day
| Day | High | Low | Rain | Gust |
|---|---|---|---|---|
| Fri 1 | 22.4°C | 14.6°C | 4.2 mm | 7 mph |
| Sat 2 | 23.5°C | 16.1°C | 0.0 mm | 11 mph |
| Sun 3 | 25.5°C | 12.8°C | 0.0 mm | 1 mph |
| Mon 4 | 29.3°C | 15.8°C | 0.0 mm | 0 mph |
| Tue 5 | 30.2°C | 13.3°C | 0.0 mm | 9 mph |
| Wed 6 | 29.9°C | 15.7°C | 0.0 mm | 0 mph |
| Thu 7 | 32.0°C | 18.0°C | 0.0 mm | 0 mph |
| Fri 8 | 29.7°C | 17.9°C | 0.0 mm | 0 mph |
| Sat 9 | 32.6°C | 19.6°C | 0.0 mm | 0 mph |
| Sun 10 | 32.1°C | 20.1°C | 0.0 mm | 12 mph |
| Mon 11 | 25.5°C | 19.1°C | 0.0 mm | 11 mph |
| Tue 12 | 22.9°C | 13.2°C | 10.0 mm | 14 mph |
| Wed 13 | 20.2°C | 12.3°C | 0.0 mm | 12 mph |
| Thu 14 | 24.2°C | 13.5°C | 0.0 mm | 11 mph |
| Fri 15 | 25.2°C | 12.8°C | 0.0 mm | 7 mph |
| Sat 16 | 25.4°C | 13.7°C | 0.0 mm | 12 mph |
| Sun 17 | 20.9°C | 15.4°C | 1.0 mm | 18 mph |
| Mon 18 | 19.2°C | 13.0°C | 14.4 mm | 14 mph |
| Tue 19 | 19.1°C | 12.4°C | 0.2 mm | 25 mph |
| Wed 20 | 19.5°C | 13.8°C | 40.8 mm | 22 mph |
| Thu 21 | 17.3°C | 11.1°C | 1.6 mm | 15 mph |
| Fri 22 | 17.4°C | 10.7°C | 2.4 mm | 12 mph |
| Sat 23 | 17.6°C | 9.1°C | 0.2 mm | 9 mph |
| Sun 24 | 21.6°C | 12.1°C | 0.0 mm | 17 mph |
| Mon 25 | 21.8°C | 15.5°C | 0.0 mm | 14 mph |
| Tue 26 | 22.5°C | 14.1°C | 1.2 mm | 16 mph |
| Wed 27 | 20.3°C | 14.6°C | 0.0 mm | 25 mph |
| Thu 28 | 18.3°C | 15.2°C | 0.4 mm | 16 mph |
| Fri 29 | 19.8°C | 14.1°C | 2.6 mm | 11 mph |
| Sat 30 | 18.7°C | 11.2°C | 0.0 mm | 14 mph |
Weather fronts
- Likely cold front · Tue 12 Sep, 16:30
- Likely cold front · Mon 18 Sep, 03:45
- Likely cold front · Wed 20 Sep, 19:30
- Likely cold front · Wed 27 Sep, 20:15
- Likely warm front · Thu 28 Sep, 23:45
- Likely cold front · Fri 29 Sep, 04:00
Found automatically from this station’s readings alone, so likely rather than certain. What’s a front?
September in other years
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Rainfall up to yesterday is from the Environment Agency’s rain gauges near Letchworth: the station’s own gauge is sheltered by nearby buildings and trees and catches less than falls. Today’s is the station’s. Contains Environment Agency information © Environment Agency and/or database right, under the Open Government Licence.