2025
Weather in Letchworth Garden City, month by month
Mean temperature
12.5°C
Station average 11.2°C
Highest
33.7°C
On Mon 30 Jun
Lowest
−4.5°C
On Sat 11 Jan
Rain
517.0 mm
86% of the station average, 600.9 mm
Wet days
151
With 0.2 mm of rain or more
Wettest day
38.8 mm
On Fri 14 Nov
Strongest gust
30 mph
On Wed 1 Jan
Highest pressure
1043.3 hPa
Lowest 968.5 hPa
How it compares
The warmest year of the 17 on record.
The 5th driest year of the 17 on record, and the driest since 2022.
Month by month
| Month | Mean | High | Low | Rain |
|---|---|---|---|---|
| January | 4.1°C | 12.5°C | −4.5°C | 69.6 mm |
| February | 5.4°C | 15.8°C | −2.1°C | 47.2 mm |
| March | 8.9°C | 20.0°C | −2.6°C | 2.6 mm |
| April | 12.0°C | 25.6°C | 1.4°C | 31.8 mm |
| May | 14.7°C | 28.3°C | 3.8°C | 15.0 mm |
| June | 19.9°C | 33.7°C | 7.7°C | 20.0 mm |
| July | 20.2°C | 33.2°C | 11.8°C | 86.0 mm |
| August | 19.5°C | 32.8°C | 9.5°C | 21.4 mm |
| September | 15.4°C | 27.3°C | 4.3°C | 32.8 mm |
| October | 12.5°C | 21.3°C | 4.1°C | 39.2 mm |
| November | 9.1°C | 17.9°C | −1.5°C | 100.2 mm |
| December | 7.5°C | 14.3°C | −0.1°C | 51.2 mm |
Daily temperature range
Low to high each day
Typical range for the date
Monthly rainfall
Total
Station average
Daily high, day by day
Hover a day for its high and low
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.