[Duncan Railton]

Gust	49.5mph
RF	56.4
Avg hPa	1015
Max hPa	1039
Min Hpa	991
Max	10.2
Min	-3.6
Min Max	0.9
Max Min	8.8
Avg.Max	5.2
Avg Min	1.8
AVG	3.51

Snow Falling 2

Snow Lying 1

Despite the relative lack of snow (only one day with snow lying) January 2011 ended up below average and rather anticyclonic. A cool month overshadowed by its predecessor!

[Dave K]

JANUARY 2011 - AVERAGE TEMPERATURE, RATHER WET AND CLOUDY

The average temperature here for January 2011 was only very slightly above average, largely due to cloudy nights resulting in few frosts and none of those very cold. It was for the most part an anticyclonic month which started and ended with cool spells, but with a mild, windy and very wet few days mid month. However daytime temperatures were entirely unexceptional.

Rainfall for the month was 126% of average at 95.9mm with the bulk of it falling from the 5th to the 18th, the number of raindays was above average. Snow and/or sleet was observed on two of the rainfall days but the falls were too light and brief to give any accumulation.

Sunshine was rather below average at around 70% of the January normal, with the period of 11th to 17th especially gloomy.

Full daily stats at http://www.tonbridge-weather.org.uk/2011/2011-01.htm

[Uskys]

January 2011

 Brecon Beacons 1,100' ASL

Averages From 1985-2010 (# = Out Of 300months)

 

• Mean  1.7°C  ( 1.3°C below average ) #17th  Coldest
• Mean Max: 4.5°C #21st Lowest
• Mean Min: -1.3°C #13th Lowest
• Low Maximum: -1.2°C (29th) #27th Coldest
• High Minimum: 6.7°C (13th) #52nd coldest

 

 

[Richie]

---------------------------
JANUARY 2011 Extremes:-
---------------------------
AIR TEMPERATURES:-
Minimum Air temp: -4.2c---- Day 21
Maximum Air temp: 13.5c---- Day 21
Lowest Maximum: 2.5c---- Day 21
Highest Minimum: 8.3c---- Day 13
Mean Maximum: 7.0c
Mean Minimum: 0.9c
Mean: 4.0c

Minimum Grass Temp: -5.1c---- Day 21
-----------------------------------------------------
SOIL TEMPERATURES:-

30cm Depth
Mean Soil Temp: 3.7c

100cm Depth
Mean Soil Temp: 4.7c

RAINFALL:
----------
Highest Rainfall in 24hours: 7.0mm---- Day 07

Total Rainfall for the month: 42.5mm

Days with Rain > 0.2mm: 3 Days.

Days with rain >1.0mm: 12 Days.

EVAPORATION (ml)
------------------
Monthly Total: 50.1 ml

BAROMETRIC PRESSURE:-
-------------------------
Air Pressure Maximum: 1041.2mb---- Day 21

Air Pressure Minimum: 986.8mb---- Day 08

Mean (0900 UTC): 1013.4 mb.

----------------------------------------------------------
RELATIVE HUMIDITY:-

RH Max: 100%----Day 13
RH Min: 56%----Day 03
Mean RH (0900 UTC): 78%
----------------------------------------------------------

WIND:

Wind Gust Maximum: 26.6 MPH---- Day15
Mean Wind Speed: 5.1 MPH
Total Wind Run: 2635.1 miles.

N: 0
NE: 0
E: 2
SE: 0
S: 0
SW: 16
W: 0
NW: 12
CALM: 1
------------------------------------
Days with:-

Air Frost: 11
Ground Frost: 18
Fog/Mist: 2
Thunder/Lightning: 0
Snow Falling: 1
Snow Lying: 1
Sleet: 1
Hail: 0
Gale: 0

[nickmob]

Colder than average January with fairly typical rainfall.

Monthly mean temperature: 4.6c
Average max temperature: 7.3c
Average min temperature: 1.7c
Max temperature: 13.8c (13th)
Min temperature: -6.3c (31st)
Low max temperature: 0.9c (29th)
High min temperature: 11.6mm (13th)
12 air frosts
Rain: 87.8mm (18 rain days)
Max rain: 19.4mm (10th)

[HSEA]

Burwell (e.cambs) December 2010

Temperatures were marginally above the long term average, with days at or slightly below normal and nights above. This was helped due to persistant cloud - the official average for east anglia being 37hrs, compared to a long term mean of 55hrs - the dullest since 1996. Only one sharp frost (below -5c) was recorded, and no days saw lying snow. There was a mild spell mid month with the period 12-16th recorded double digit maximums mid month; 13.3c was the highest maximum since Jan 2008, and it was the mildest Jan since 2008 overall.

24 hour means
Mean temp: 4.5c
Mean Max: 6.5c
Mean Min: 2.4c

12 hourly means
Mean temp: 4.8c
Mean Max: 6.4c
Mean Min: 3.1c

High Max: 13.3c (13th)
Low Max: 1.7c (29th)
High Min: 10.4c (13th) OR (11.0c on the 14th if the 12 hourly period is used)
Low Min: -5.5c (29th)

Air frosts: 11 (9 if 12 hourly period is used)
Ice days: 0
Snow falling: 1
Snow Lying: 0
Deepest snow: nil

[ole blue eyes 1944]

Station Statistics for January 2011 AWS Burncross, Sheffield, South Yorkshire UK

TEMPERATURE

6.8 Mean Max ©
+0.6 Diff from Average
2.2 Mean Min ©
+0.6 Diff from Average
4.5 Mean ©
+0.6 Diff from Average
12.6 High Max © 13th
2.0 Low Max © 27th
9.8 High Min © 16th
-2.7 Low Min © 21st
-5.4 Grass Min © 29th


RAIN

35.3 Rain Total (mm)
44 % of Average
7 Wet days with >0.2 mm
7 Wet days with >1.0 mm
12.1 Most Rain in a day 7th

NUMBER OF DAYS WITH.

7 Air frost (air min temp -0.1C or less)
17 Ground Frost (grass min temp -0.1C or less)
4 Sleet/Snow Falling
2 50% snow cover at morning observation hour
0 Thunder Heard
0 Small hail (<5mm diameter)
0 Large Hail (>=5mm diameter)
0 Fog at morning observation hour


SUNSHINE

57.35 Total Sunshine (hours)
121% of Average
7.29 Most in a day (hours)
31st Day of Most Sun
9 Sunless Days


WIND

0 Days with gale (10 min mean wind 39 mph or more)

Wind Direction number of days with wind from.

2 N
2 NE
2 E
3 SE
1 S
2 SW
13 W
1 NW
5 Calm

WIND GUST

Mean Wind Speed 4.3 mph
Maximum Gust 33.8 mph
Day of Max Gust 16th


THUNDER EVENTS

None

OTHER MEASUREMENTS

73 Cloud Cover %
65 Mean Relative Humidity % (Taken at Morning Observation)
1018 Mean Pressure (mb) at 9:00 am GMT only
1041 Max pressure at any time of day 22nd
995 Min pressure at any time of day 6th

STATION NOTES.

January 2011 was an average month temperature wise with the means almost on the average. The month had a warm spell 12th – 16th inclusive with a maximum of 12.6c on the 13th with a cold spell on the last 5 days of the month when the minimum was -2.5c on the 31st. Within the month there were 17 days of ground frosts


Nevertheless it was rainfall which was the feature or lack of it as I recorded 44% of the January average with 12.1mm on the 7th which included 3cms of snow melt accounting for 33% of the total recorded. From the middle of the month onwards 1.5 mm only was recorded.

Snow fell on 3 days within the month yet there was a wind from a westerly quadrant on 16 days within the month

[Les]

Here are my readings for January 2011,I hope their of interest.


SUMMERY

The first week and a half of the month was cold and unsettled,most ofthe rest of January wa milder and more settled.Recorded rainfall was 72.0mm but some of this was snowfall so the figure is probably a slightly inacurate.The wettest day was the 10th with 19.5mm and the second wettest 9.0mm on 15th.

TEMPERATURE

Highest................................9.7C on the 15th
Lowest................................-7.0C on the 7th
Lowest Max..........................-1.0C on the 7th
Highest Min...........................4.5C on the 15th
Mean Max..............................4.35C
Mean Min..............................-1.25C
MEAN....................................1.55C

WEATHER

Days with......
Rain......................................8
Snow.....................................4
Sleet.....................................1
Fog.......................................1
Thunder.................................0
Hail.......................................0
Ice Days................................2
Laying Snow(50%+)................7
Air frost................................22

PRESSURE

Highest...............................1041mbs on the 22nd
Lowest.................................985mbs on the 5th and 8th
MEAN..................................1013.0mbs

[Howard Kirby]

A few stats from my garden:

Mean = 2.87C ( -1.23C )

Max = 12.0C

Min -7.2C

Rainfall = 35.8mm ( 47% 

 

[skitour]

Haven't really been able to keep a good temperature record this year but here are a few interesting facts as regards where I live in Birnam/Dunkeld, Perthshire:

We have had snow lying on the ground since 23/11/10 and about 15% of the natural cover still remains in favoured locations eg sheltered gardens.

The temperature in January has been as low as -10c and has been below -5c on about 8C occasions.
The highest temp. was 8c.
There have been several days of frost - in excess of 12
I haven't the temp record to be certain but I'm pretty sure the temp is below the January average for Scotland (1971 -2000). Not sure whether below local average but I suspect so if only slightly below.
2nd year in a row of snow lying for more than 10 weeks, third year in a row of more than 6 weeks of snow cover!

Very unscientific I know but a general flavour of what it's been like here in the frozen north east of the UK.

[Ian Williams]

All data from St Germans except Wind which is from Plymouth Mountbatten site