April 2024

The Undercliff path to Lyme Regis with an April thunderstorm
rumbling away in the distance

Warmer, drier but much duller than the long term average.

Summary for April 2024
Mean Max: 14.9ºC (+1.7ºC)
Mean Min: 6.0ºC (+1.0ºC)
Mean: 10.4ºC (+1.3ºC)
High Max: 20.6ºC 13th
Low Max: 11.9ºC 30th
High Min: 11.9ºC 6th
Low Min: -0.2ºC 18th
Days  >10°C 30 Days  
Days >5°C 30 Days  
Nights  >10°C 5 Days  
Nights  >5°C 16 Days  
Rain Total (tipping bucket): 63.4 mm (71%)
Rain Days >0.2 mm: 18 Days  
Rain Days >1.0 mm: 14 Days  
Max 24 hrs: 14.8 mm 2nd 
Days without any rain: 10  
Air Frost: 1 Day  
Grass Frost: 0 Days  
Snow Falling: 0 Days  
Snow (50%) @ 9am: 0 Days  
Ice Days: 0 Days  
Thunder Heard: 0 Days  
Hail <5 mm: 0 Days  
Hail >5 mm: 0 Days  
Fog @ 9am: 0 Days  
Maximum UV Index: 6.7 19th
Ave 10 Min Wind >39 mph: 0.00 Days  
N: 3.94 Days 13%
NE: 1.10 Days 4%
E: 0.81 Days 3%
SE: 0.93 Days 3%
S: 6.42 Days 21%
SW: 4.43 Days 14%
W: 1.77 Days 6%
NW: 4.82 Days 16%
Calm: 6.78 Days 22%
Wind Chill Low: -0.8ºC 18th
Mean Wind: 4.7 mph  
Max Gust: 43 mph 6th
Mean Cloud Cover: 60%  
Mean RH @ 9am: 85%  
Rain >0.1mm/hour: 20.8 Hours  
Frost Duration: 1.0 Hours  
Air Frost in a Day: 1.0 Hours 18th
Mean Pressure @ 9am: 1013.0 hPa  
Mean Pressure: 1012.6 hPa  
Max Pressure: 1031.0 hPa 22nd 
Min Pressure: 989.0 hPa 1st
Max Change in 24 hours: 30.6 hPa 9th
Radiation Daily Mean: 12.92 MJ/m²  
Max Daily Value: 24.96 MJ/m² 20th
Min Daily Value: 4.41 MJ/m² 10th
Number of Days with Data: 30 Days  
1-Hour Maximum: 816 W/m² 15th
Starting Time of the Hour:   13:00
Max Dewpoint: 14.5ºC 12th
Min Dewpoint: -2.0ºC 18th
Mean Dewpoint: 6.8ºC  
Max Humidity: 93% 1st
Min Humidity: 45% 20th
Mean Humidity: 79%  
BL Total Monthly Sunshine: 131.6 Hours  
Most Sunshine in a Day: 13.6 Hours 0th
Average Daily Sunshine: 4.4 Hours  
Sunless Days: 2 Days  
Cloudless Days: 1 Days  
Total Possible Sunshine: 416.1 Hours  
Percentage of Total Sun: 31.3%  

 
 

 

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