Monthly Archives: September 2015

Summary for September 2015

A sunny and apart from a short very wet spell (11th – 16th), a dry
month. Maximum temperatures just a little below average but a high
number of chilly nights meant the mean temperature for the month ended
up well below average.

Mean Max: 19.0ºC
Mean Min: 9.0ºC
Mean: 14.0ºC

High Max: 22.2ºC 10th
Low Max: 15.1ºC 16th
High Min: 14.4ºC 11th
Low Min: 4.1ºC 26th

Days >20°C 9 Days
Days >15°C 30 Days
Nights >10°C 12 Days
Nights <5°C 4 Days

Rain Total (gauge): 54.5 mm
Rain Days >0.2 mm: 9 Days
Rain Days >1.0 mm: 7 Days
Max 24 hrs: 22.0 mm 14th
Days without any rain: 21
Grass Frost: 0 Days

Thunder Heard: 0 Days
Hail <5 mm: 0 Days
Hail >5 mm: 0 Days
Fog @ 9am: 0 Days

Total Monthly Sunshine: 225.4 Hours
Most Sunshine in a Day: 12.6 Hours 6th
Average Daily Sunshine: 7.5 Hours
Sunless Days: 0 Days
Cloudless Days: 10 Days
Total Possible Sunshine: 379.0 Hours
Percentage of Total Sun: 59%

Ave 10 Min Wind >39 mph: 0.00 Days
Calm: 5.27 Days
Mean Wind: 3.1 mph
Max Gust: 26 mph 14th

Mean Cloud Cover: 54%
Mean RH @ 9am: 91%
Rain >0.1mm/hour: 15.4 Hours

Mean Pressure: 1016.5 hPa
Max Pressure: 1034.6 hPa 28th
Min Pressure: 985.5 hPa 16th

Max Dewpoint: 16.0ºC 18th
Min Dewpoint: 3.2ºC 26th
Mean Dewpoint: 10.5ºC

Max Humidity: 99%
Min Humidity: 48% 29th
Mean Humidity: 80%