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four
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  • Advanced Member Topic Starter
02 January 2015 09:54:09

Windy, drier than average, milder than average - but not by much as my calculated value is still skewed by v.cold Decembers of 2009 and 2010
2014 mean temperature is 9.3C which is +0.3C 

Average temperature = 4.4°C (+1.0C)
Average humidity = 88%
Average dewpoint = 2.6°C
Average barometer = 1014.0 mb
Average windspeed = 11.5 mph
Average gustspeed = 15.5 mph
Average direction = 267° ( W )
Rainfall for month = 44.6 mm (-32mm)
Rainfall for year = 891.8 mm (+8.2mm)
Maximum rain per minute = 1.8 mm on day 23 at time 14:42
Maximum temperature = 12.9°C on day 22 at time 14:21
Minimum temperature = -3.8°C on day 28 at time 05:25
Maximum humidity = 98% on day 04 at time 14:58
Minimum humidity = 68% on day 03 at time 13:56
Maximum dewpoint = 10.7°C on day 18 at time 13:16
Minimum dewpoint = -4.3°C on day 28 at time 5:25
Maximum pressure = 1039.8 mb on day 29 at time 10:32
Minimum pressure = 986.7 mb on day 12 at time 06:36
Maximum windspeed = 38.0 mph from 270°( W ) on day 18 at time 15:12
Maximum gust speed = 56.4 mph from 270°( W ) on day 22 at time 01:05
Maximum heat index = 12.9°C on day 22 at time 14:21
Avg daily max temp :6.7°C
Avg daily min temp :1.9°C
Growing degrees days :0.0 GDD
Total windrun = 8296.1miles
Frost days= 9
-----------------------------------
Daily rain totals
-----------------------------------
04.8 mm on day 2
00.5 mm on day 4
02.3 mm on day 7
00.3 mm on day 9
01.5 mm on day 10
01.0 mm on day 11
01.0 mm on day 12
00.3 mm on day 14
00.3 mm on day 15
07.9 mm on day 16
00.5 mm on day 17
08.0 mm on day 23
00.4 mm on day 24
00.2 mm on day 25
01.0 mm on day 26
07.8 mm on day 27
01.8 mm on day 28
05.2 mm on day 29
00.4 mm on day 30


03 January 2015 14:44:46

A much lower temperature anomaly in December compared to much of 2014 but despite this the maximum temperature was 1.0C above normal and the minimum 0.6C above normal. So still a warmish month. However, I recorded 9 air frosts. This is the highest figure in any month since March 2013. This shows that it was a month of contrasts. Some very mild weather but also plenty of seasonably cool conditions.



 

ARTzeman
04 January 2015 08:12:20

Summary for December 2014


Temperature (°C):
Mean (1 minute)  5.3
Mean (min+max)   5.3
Mean Minimum     2.6
Mean Maximum     8.0
Minimum          -2.3 day 29
Maximum          12.1 day 18
Highest Minimum  11.0 day 18
Lowest Maximum   3.6 day 28
Air frosts       3


Rainfall (mm):
Total for month  32.1
Wettest day      8.4 day 12
High rain rate   14.4 day 26
Rain days        16
Dry days         14


Wind (km/h):
Highest Gust     36 day 27
Average Speed    4
Wind Run         2562.4 km
Gale days        0


Pressure (hPa):
Maximum          1041.7 day 29
Minimum          0.0 day 15


Days with snow falling         0
Days with snow lying at 0900   0


Total hours of sunshine        0.0


Summary for December 2014


Temperature (°C):
Mean (1 minute)  5.3
Mean (min+max)   5.3
Mean Minimum     2.6
Mean Maximum     8.0
Minimum          -2.3 day 29
Maximum          12.1 day 18
Highest Minimum  11.0 day 18
Lowest Maximum   3.6 day 28
Air frosts       3


Rainfall (mm):
Total for month  32.1
Wettest day      8.4 day 12
High rain rate   14.4 day 26
Rain days        16
Dry days         14


Wind (km/h):
Highest Gust     36 day 27
Average Speed    4
Wind Run         2562.4 km
Gale days        0


Pressure (hPa):
Maximum          1041.7 day 29
Minimum          0.0 day 15


Days with snow falling         0
Days with snow lying at 0900   0


Total hours of sunshine        81hrs






Some people walk in the rain.
Others just get wet.
I Just Blow my horn or trumpet
redmoons
04 January 2015 17:10:11

Summary for December 2014 in Bromley, Kent


Mild month with lots of swings of temperatures managed to get 10 frosts compared to 0 this time last year.


Temperature (°C):
Minimum -3.6 day 29
Maximum 14.1 day 18
Highest Minimum 10.8 day 22
Lowest Maximum 3.7 day 27
Air frosts 10


Rainfall (mm):
Total for month 42.9
Wettest day 15.6 day 11
High rain rate 18.0 day 11
Rain days 19
Dry days 12


Pressure (mb):
Maximum 1041.1 day 29
Minimum 1003.4 day 11


Days with snow falling 0
Days with snow lying at 0900 0


 


More on my blog - http://alalchan.tumblr.com/post/107061032136/bromley-weather-statistics-december-2014


Andrew,
Watford
ASL 35m
http://weather.andrewlalchan.co.uk 





Cumbrian Snowman
04 January 2015 20:23:59

Only 4 users on the forum have posted any data relating to December out of the many hundreds of posters. Would be interested to know how many have actual weather stations. I also note  ( or I cannot find any Annual data for 2014 ? )


 


 


Brampton 7076 December 2014

Figure in brackets is difference from the mean 15yrs

Mean Max 7.1c ( +0.6)
Mean Min 2.4c (+1.3)
Mean 4.7c (+0.8)

Highest Max 12.5c 21st
Lowest Max 2.8c 27th
Lowest Min -2.5c 29th
Highest Min 9.7c 18th
Grass Min -8.9c 29th

Air Frosts 10 :D
Grass Frosts 22
Conc Frosts 13

Rainfall 125.2mm or 130%
Wettest Day 29.2mm 22nd ( Wettest December Day on record and no weather warning)
Number of days 0.2mm > 24
Number of days 1.0mm > 17
Number of days 5.0mm > 8

Snow/Sleet falling - 4 days
Thin cover 9am on the 11th 1cm

Hail 3
Thunder 0
Gale 0
Fog 0

Sunshine 20.2hrs ( 68% )
Days with no sun 16 !
Sunniest 5.0hrs 2nd

Wind - Max Gust 51mph 10th
Average Wind Speed 10.2mph
Dominant Wind Direction SW 17days
West 7 days, North West 3 Days

Text - December2014 - Compared with last December this year has been very different, nearly as wet but at least some welcome frosts which were completely absent in 2013, numbering 10. Mean Max above normal by +0.6c. Mean Min 2.4c which again is warmer than normal by 1.3c. There was a very wet spell on the 22nd-23rd with local rivers in full flood, there were several accidents in the area as vehicles struck flood water. 22nd December was my wettest ever December day with 29.2mm There was a little snow but just a thin cover on the morning of the 11th. Sunshine levels very low at just over 20 hours

 


glenogle
06 January 2015 20:15:36

I'd noticed same thing cumbrian, I'll be posting my 2014 stats after this one, so expect at least your 2014 stats to be added a short time later as a minimum   


 


Some very wet days here throughout december made if feel damp and miserable, but wasn't overly cold despite a few seasonal days thrown in.


---------------------------------------------------------------------------------------------
Averages\Extremes for the month of December 2014

---------------------------------------------------------------------------------------------
Average temperature = 3.5°C
Average humidity = 76%
Average dewpoint = -0.5°C
Average barometer = 1004.8 mb
Average windspeed = 0.9 mph
Average gustspeed = 1.7 mph
Average direction = 264° ( W )
Rainfall for month = 180.8 mm
Rainfall for year = 1631.1 mm
Maximum rain per minute = 1.3 mm on day 24 at time 00:32
Maximum temperature = 10.1°C on day 31 at time 21:05
Minimum temperature = -4.0°C on day 29 at time 07:07
Maximum humidity = 95% on day 17 at time 03:57
Minimum humidity = 39% on day 11 at time 00:10
Maximum dewpoint = 9.1°C on day 09 at time 16:00
Minimum dewpoint = -8.9°C on day 11 at time 00:10
Maximum pressure = 1031.0 mb on day 29 at time 11:34
Minimum pressure = 981.0 mb on day 12 at time 08:20
Maximum windspeed = 12.7 mph from 270°( W ) on day 20 at time 05:51
Maximum gust speed = 29.9 mph from 225°( SW) on day 20 at time 00:47
Maximum heat index = 10.1°C on day 31 at time 21:05
Avg daily max temp :6.0°C
Avg daily min temp :0.9°C
Growing degrees days :0.0 GDD
Total windrun = 622.0miles
Frost days= 13
Ice days= 1
-----------------------------------
Daily rain totals
-----------------------------------
01.1 mm on day 1
01.0 mm on day 4
22.3 mm on day 6
11.7 mm on day 7
05.4 mm on day 8
27.7 mm on day 9
08.4 mm on day 10
12.5 mm on day 11
01.3 mm on day 12
04.1 mm on day 13
09.8 mm on day 14
01.0 mm on day 15
09.4 mm on day 16
06.4 mm on day 18
07.5 mm on day 19
02.3 mm on day 20
31.7 mm on day 21
09.5 mm on day 22
02.0 mm on day 23
07.7 mm on day 24
01.0 mm on day 30
05.4 mm on day 31


UserPostedImage LLTNP 105m aslĀ 

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