Monthly Archives: March 2018

March 2018 is going to be a dull, cold and very wet month

Sunshine running way, way below average. This could well end up my dullest March since I started recording sunshine in 2006.

It has also been my wettest March by a wide margin, and could end up my coldest.

Definitely cold, wet and dull. But that doesn’t mean it has been uneventful. This March has been one of the most interesting and varied months I can remember.

1st – 23rd
Mean temp = 6.1C (over 2C colder than my eLTA)
Rainfall = 132 mm (230%!!!)
Sunshine = 67 hours (46%).

Summary for Winter 2017/18

Sunnier than normal with around average rainfall and temperature.

Mean Max: 9.5ºC
Mean Min: 2.6ºC
Mean: 6.0ºC

High Max: 14.1ºC 30th Dec
Low Max: 1.2ºC 28th Feb
High Min: 10.7ºC 28th Jan
Low Min: -4.8ºC 28th Feb
Grass Min: -8.3ºC 28th Feb

Days >10°C 42 Days
Days >5°C 84 Days
Nights >10°C 2 Days
Nights <5°C 66 Days

Rain Total (gauge): 219.2 mm
Rain Days >0.2 mm: 46 Days
Rain Days >1.0 mm: 34 Days
Max 24 hrs: 16.3 mm 25 Dec
Days without any rain: 44

Air Frost: 28 Days
Grass Frost: 61 Days
Snow Falling: 1 Day 12th Feb
Snow (50%) @ 9am: 0 Days
Thunder Heard: 3 Days
Hail <5 mm: 8 Days
Hail >5 mm: 0 Days
Fog @ 9am: 2 Days

Total Winter Sunshine: 304.5 Hours
Most Sunshine in a Day: 9.9 Hours 25th Feb
Average Daily Sunshine: 3.4 Hours
Sunless Days: 15 Days
Cloudless Days: 8 Days
Total Possible Sunshine: 797 Hours
Percentage of Total Sun: 38%

Ave 10 Min Wind >39 mph: 0.00 mph
Mean Wind: 3.5 mph
Max Gust: 51 mph 13th Feb
Mean Cloud Cover: 53%
Mean RH @ 9am: 91%

Mean Pressure: 1014.0 hPa
Max Pressure: 1037.0 hPa 21st Dec
Min Pressure: 975.6 hPa 11th Dec

Max Dewpoint: 12.6ºC 4th Jan
Min Dewpoint: -12.8ºC 28th Feb
Mean Dewpoint: 3.5ºC

Max Humidity: 100% Several days
Min Humidity: 41% 28th Feb
Mean Humidity: 85%

‘Spring Snow!’

Difficult to tell how deep the snow is here as it is all blown around but as a rough guess there’s about 20 cm. The snow started off light this morning but has been steadily getting heavier and heavier.

The wind has also picked up through the afternoon and blowing all that snow around.

Quite a few roads now blocked, especially on high ground where there are probably blizzards.

Worse than the 19th/20th December 2010 because of the wind.

Maximum today so far is -2.4C.

And it is still snowing!

Summary for February 2018

An interesting and varied month! Colder, drier and sunny than normal. Coldest mean monthly temperature, and the highest amount of air and grass frosts recorded of any month since December 2010. Sunniest February in record (2005).

Mean Max: 8.4ºC
Mean Min: 0.6ºC
Mean: 4.5ºC

High Max: 13.3ºC 17th
Low Max: 1.2ºC 28th
High Min: 8.0ºC 19th
Low Min: -4.8ºC 28th
Grass Min: -8.3ºC 28th

Days >10°C 9 Days
Days >5°C 24 Days
Nights >10°C 0 Days
Nights >5°C 3 Days

Rain Total (gauge): 39.4 mm
Rain Days >0.2 mm: 9 Days
Rain Days >1.0 mm: 7 Days
Max 24 hrs: 11.0 mm 13th
Days without any rain: 19

Air Frost: 15 Days
Grass Frost: 25 Days
Snow Falling: 1 Day
Snow (50%) @ 9am: 0 Days
Thunder Heard: 0 Days
Hail <5 mm: 2 Days
Hail >5 mm: 0 Days
Fog @ 9am: 0 Days

Total Monthly Sunshine: 135.8 Hours
Most Sunshine in a Day: 9.9 Hours 25th
Average Daily Sunshine: 4.8 Hours
Sunless Days: 4 Days
Cloudless Days: 3 Days
Total Possible Sunshine: 281.6 Hours
Percentage of Total Sun: 48%
Average Sunny Interval: 18.1 mins

Ave 10 Min Wind >39 mph: 0.00 Days
Calm: 4.65 Days 25%
Mean Wind: 3.7 mph
Max Gust: 51 mph 13th
Mean Cloud Cover: 52%
Mean RH @ 9am: 90%

Mean Pressure: 1016.7 hPa
Max Pressure: 1029.7 hPa 26th
Min Pressure: 993.3 hPa 13th

Max Dewpoint: 10.4ºC 14th
Min Dewpoint: -12.8ºC 28th
Mean Dewpoint: 0.9ºC

Max Humidity: 99% 14th
Min Humidity: 41% 28th
Mean Humidity: 79%