November 2008
The weather is always a topic for
conversation especially in the UK and even more so when there are extremes. What
about November 2008? Pretty average as Novembers go but what is “average”?
The rainfall was almost exactly on
average but when you look at the variations over the years, to be on the average
is purely coincidental. Maximum, minimum and mean temperatures were all very
similar to last year. There were 22 days with recordable rainfall (16 in 2007).
For me, the main characteristic of this November was that there were too many
days when the sun didn’t appear. It was DULL!
| |
|
2007 |
2008 |
| Rainfall mm |
|
84.3 |
89.3 |
| Maximum temperature |
|
16ºC |
14ºC |
| Average maximum temperature |
|
10.2ºC |
9.8ºC |
| Minimum temperature |
|
-1ºC |
-1ºC |
| Average minimum temperature |
|
3.95ºC |
4.4ºC |
| Days with snow |
|
1 on 18th |
1 on 22nd |
Gary Beynon
Dec 1st 2008
Weather for December 2008
I wonder what
we will remember about the weather in December 2008? It was actually a
very variable month with 2 days reaching 12.6ºC and some minimum temperatures
that were dramatically higher than the maximum ones we are currently
experiencing. It was also a very dry month with 13 days at the end with just 1
day when I recorded “trace” for rainfall. (This is a time when you know that
there has been precipitation but it is not measureable.) There was no snow but
there were a lot of frosts that covered the cars with thick layers of ice.
Here is the
data with a comparison for 2007 :
| |
|
2007 |
2008 |
|
Rainfall |
|
69.6 mm |
41.9 mm |
|
Days of rain |
|
16 |
13 |
|
Max temp. |
|
13.6ºC |
12.6ºC |
|
Mean max. |
|
7.5ºC |
6.0ºC |
|
Min temp. |
|
-3ºC |
-3ºC |
|
Mean min |
|
2.6ºC |
1.75ºC |
|
Days of frost |
|
11 |
17 |
That brings
us to the end of another year and I have included the annual rainfall for 2008
and the comparative figures (in graph form) since 1981. 906 mm in the year made
it wetter than average but not the wettest that I have recorded. The “linear”
line is a trend line over the years. It does show an increase but there is
probably insufficient data for this to be statistically meaningful. The rainfall
over the 6 winter months is a good indication of the amount of water reaching
the water table. I will report on that at the start of April.
Gary Beynon
Jan 6th 2009
JANUARY 2009 WEATHER
Yet another
month that goes a long way to prove that the UK weather can vary enormously over
a very short period of time. Following 10 days with a frost overnight at the
start of the month, and maximum temperatures of 4ºC but mostly at 2º or below,
the temperature then jumped to 9ºC and remained ”high” for 21 days to the end of
the month. There were many frosts at night however. Summer, or Spring at least,
had not come and, as I write this the SNOW is falling heavily. I do not envy the
poor weather forecaster; things are so variable and so unpredictable. The
rainfall was just about dead on average but, look at the graph, the variation
from one January to the next is quite dramatic.
| January
Statistics |
|
2009 |
2008 |
|
Rainfall |
|
76.8mm |
120.9mm |
|
Days of rain |
|
16 (4 with
snow/sleet) |
21 |
|
Max temp. |
|
9ºC |
13ºC |
|
Mean max. |
|
5.52ºC |
9.15ºc |
|
Min temp. |
|
-6ºC |
2ºC |
|
Mean min |
|
0.3ºC |
3.83ºC |
|
Days of frost |
|
20 |
0 |
Gary Beynon
Feb 2nd 2009
FEBRUARY 2009 WEATHER
Another month
of contrasts. It started off cold and finished a good deal warmer; well all
things are comparative and perhaps “less cold” would be a better description.
But we did have snow and we didn’t cope with it. This is hardly surprising when
you consider how little snow and how infrequently we have it in this part of the
world. It is actually very difficult to translate a depth of snow into the
equivalent rainfall. Even when you allow the snow in the gauge to melt, the
amount can be so very dependant upon the type of snow (as the railways know!)
and the way in which the wind swirls it about. A general rule of thumb is that
12 inches of snow depth is equivalent to 1 inch of rainfall. Bearing in mind
that we had snow on 9 days in February, it is just as well that all the snow
didn’t settle, that much was wet and therefore the depth didn’t accumulate.
Here is the
data.
| February
Statistics |
|
2009 |
2008 |
|
Rainfall |
|
74.8mm |
20.4mm |
|
Days with rain |
|
7 |
8 |
| Days with snow |
|
9 |
0 |
|
Max temp. |
|
13ºC |
14ºC |
| Average max temp |
|
7.4ºC |
9.6ºC |
| - but days
1 - 14 |
|
4.18ºC |
|
|
days 15 - 28 |
|
10.57ºC |
|
| |
|
|
|
|
Min temp. |
|
- 4ºC |
- 4ºC |
|
Average min temp |
|
2.4ºC |
1.8ºC |
| - but days
1 - 14 |
|
-0.98ºC |
|
|
days 15 - 28 |
|
5.46ºC |
|
| |
|
|
|
|
Days of frost |
|
11 |
13 |
The February rainfall chart is below.

Gary Beynon
March 8th 2009
MARCH 2009 WEATHER
Yet another
month of contrasts with rain to start and a very long dry period through the
middle. It was actually a comparatively dry month with rainfall below average
and nearly half the rainfall coming on one day. There were also many mornings
when we woke to see frost on the cars but fortunately, as the roads were
generally dry, there were none of the black ice problems we had in February. It
was, I think, a very pleasant month with the daytime warmth bringing on the buds
and getting things started in the garden. Certainly the farmers were pleased at
the dry spell that has allowed them to plough, harrow and drill all in the space
of less than two weeks. No doubt they would now like some rain!
We have now
completed the 6 months that are important to the replenishment of the water
table; most of the rain from now on will go back into the atmosphere through the
plants and trees or by evaporation. I have included a graph to show the winter
rainfall over the years. Hose pipe restrictions this year? Probably not----but
don’t hold me to it!
|
March Statistics |
|
2009 |
2008 |
|
Rainfall |
|
29.5 |
102.1 |
|
Days with rain |
|
15 |
24 (6 snow) |
| |
|
|
|
|
Max Temp ºC |
|
15 |
16 |
|
Mean max ºC |
|
12.2 |
10.3 |
| |
|
|
|
|
Min Temp ºC |
|
-0.4 |
-1.6 |
|
Mean min ºC |
|
3.3 |
3.4 |
| |
|
|
|
|
Days of frost |
|
15 |
10 |
March
Rainfall below :

Winter Rainfall - October - March
below:

Gary Beynon
April 8th 2009
HYDE HEATH WEATHER APRIL 2009
April was a
dry month with quite a lot of sunshine and some not unreasonable temperatures. I
suspect that the farmers were looking for rain by the end of the month as the
spring crops weren’t doing a great deal. Driving over some of the farm tracks up
at Shardeloes sent a cloud of dust up which is not really what one expects at
this time of the year. The Misbourne however is quite full with water alongside
the Link Road carpark in Great Missenden and both lakes in Lower Park full to
the top. The temperature range was high with a maximum of 20ºC and a minimum of
2.4ºC, not that different from 2008. There is only one aspect of our British
weather that we can rely on---it is very variable and constantly surprises!
|
April Statistics |
|
2009 |
2008 |
|
Rainfall |
|
36.6mm |
59.0mm |
|
Days with rain |
|
12 |
20 |
| |
|
|
|
| 27
year average rainfall |
|
64 mm |
| Wettest year |
|
108 mm - 1993 |
| Driest year |
|
2.6 mm - 2007 |
| |
|
|
|
|
Max Temp ºC |
|
20 |
21 |
|
Mean max ºC |
|
16.33 |
14 |
| |
|
|
|
|
Min Temp ºC |
|
2.4 |
-
0.5 |
|
Mean min ºC |
|
6.4 |
4.8 |
| |
|
|
|
April
rainfall since 1981 is shown below.

Gary Beynon
May17th 2009
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Hyde Heath Weather May 2009
May is now
the third consecutive month of low rainfall especially when compared with last
year. March, April and May have only seen 98.8 mm compared with 241.1 mm in the
same period in 2008. I suspect that we all realise this when you consider just
how hard the ground is and the somewhat slow growth of the Spring crops in the
fields. Apart from the rainfall, May across the 2 years show some very similar
statistics on average. What is a little different is the pattern between the
years. In 2008 it was the first two weeks of May that saw temperatures reaching
26ºC whereas we had to wait until the very end of the month this year before
seeing something similar. The rainfall pattern was the same; in 2008 most of the
rain came in the last 7 days whereas this year, what there was, came mostly on
Thursday 14th. Nothing is predictable is it?
|
May Statistics |
|
2009 |
2008 |
|
Rainfall |
|
32.7mm |
75.0mm |
|
Days with rain |
|
12 |
14 |
| |
|
|
|
|
Max Temp ºC |
|
25ºC |
26ºC |
|
Mean max ºC |
|
19.42ºC |
19.59ºC |
| Days
above 20ºC |
|
12 |
16 |
|
Min Temp ºC |
|
5ºC |
4ºC |
|
Mean min ºC |
|
8.82ºC |
9.58ºC |
| |
|
|
|
The rainfall
graph for May over the past years is shown below.

Gary Beynon
June 11th 2009
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Hyde Heath Weather June 2009
This June certainly had
something about it that will keep it in our memories for a short time at
least. I refer of course to the high temperatures of the last 6 days. Is there a
point where we notice the higher temperature or is it dependant upon what has
already going on ? Can we become used to something different? I suspect that we
do become acclimatised to temperature, we can get used to higher temperatures
but those in the upper 20s take some getting used to especially in this country
where the humidity tends to be quite high. (It has nothing to do with the fact
that once abroad in high temperatures—and lower humidity—there is often the sea
or a pool; or has it ! ? ).
June 2009 compared with 2008
shows actually a very consistent picture. Rainfall, mean temperatures, lowest
temperature were all very consistent; just that surge up to 29.7ºC on the 29th
that stands out.
| June Statistics |
|
2009 |
2008 |
|
Rainfall |
|
52.7mm |
53.5mm |
|
Days with rain |
|
15 |
12 |
| |
|
|
|
|
Max Temp ºC |
|
29.7ºC |
26ºC |
|
Mean max ºC |
|
22.3ºC |
21.3ºC |
| |
|
|
|
|
Min Temp ºC |
|
6ºC |
8ºC |
|
Mean min ºC |
|
|
|
| |
|
|
|
The rainfall data all looks very average but as you can see
from the graph below, there have been some very wet June months in the past.

Gary Beynon
July 14th 2009
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Hyde Heath
Weather - JULY 2009
July was hardly a month that we
will want to remember! Best described as wet and not a great deal else to
commend it. Purely on the figures alone, it was actually not much different from
July in either 2008 or 2007. But figures don’t always show the full picture.
Rainfall wise all 3 years were wet but the difference was in the number of days
when rain fell and its intensity. Temperature wise there was not a lot to choose
between them. In 2009 the best part of the month was when we were away; it just
got worse from then on.
What of August ? I thought that
if I left this report long enough, I could “forecast” August’s weather. I am not
that brave---or stupid!
| July Statistics |
|
2009 |
2008 |
|
Rainfall |
|
101.2mm |
97.1mm |
|
Days with rain |
|
24 |
14 |
| Wettest Day |
|
13.7mm |
25.3mm |
| Days with rain |
|
24 |
14 |
|
Max Temp ºC |
|
29.6 |
28.6 |
|
Mean max ºC |
|
22.76 |
23.1 |
| |
|
|
|
|
Min Temp ºC |
|
9.4 |
9.0 |
|
Mean min ºC |
|
12.84 |
12.9 |
| |
|
|
|
| No days above
20ºC |
|
29 |
28 |

Gary Beynon
August 12th 2009
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AUGUST 2009 WEATHER
This last
August was at least better than August 2008; but that’s not saying a great deal!
It was drier, the maximum temperatures were higher but it was still
disappointing and hardly came up to what we were promised/predicted some months
back. On 17 of the days I have recorded rather a lot of cloud. Still if you can
remember back to the 1950s---and some of us can---summers then also seemed to be
wet. I have vivid memories of holidays in Paignton listening to the rain pouring
down and coming home early because it was
so bad. We have though been more fortunate than the West Country and Wales; they
have a worse time than us in August.
| August
Statistics |
|
2009 |
2008 |
|
Rainfall |
|
44mm |
106.1 |
|
Days with rain |
|
13 |
22 |
| |
|
|
|
|
Max Temp ºC |
|
27ºC |
25.4ºC |
|
Mean max ºC |
|
23.05ºC |
21.4ºC |
| |
|
|
|
|
Min Temp ºC |
|
9.0ºC |
9.0ºC |
|
Mean min ºC |
|
12.91ºC |
13.50ºC |
| |
|
|
|
The rainfall chart is below

Gary Beynon
Sept 17th 2009
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SEPTEMBER 2009 WEATHER
I have been looking to see what
the official definition of a drought is from the Met. Office. Can’t find it! I
do remember that it is a certain number of days without measurable rain. How
many days? Forgotten! However, September this year must have come pretty close
to the official definition. It rained on 3rd and there was nothing of
real note then until 1st October. True that there were 3 days around
the middle of the month with rain but it only amounted to a total of 1.2mm. You
only need to look at the way that the grass hardly grew, the brown patches
started to appear and the areas under the trees showed no signs of moisture at
all. It was the driest September for 12 years. Add it all of that the warm
temperatures and it was a rather pleasant month. Certainly better than average
and a big improvement on 2008 and the earlier parts of our summer. Here are the
facts:-
| September
Statistics |
|
2009 |
2008 |
|
Rainfall |
|
17.1 mm * |
72.2 mm |
|
Days with rain ** |
|
8 |
16 |
| |
|
|
|
|
Max Temp ºC |
|
25.5 ºC |
20.0 ºC |
|
Mean max ºC |
|
19.2 ºC |
18.1 ºC |
| |
|
|
|
|
Min Temp ºC |
|
7.0
ºC |
7.0
ºC |
|
Mean min ºC |
|
10.5 ºC |
10.3 ºC |
| |
|
|
|
| Days with
temp >20 ºC |
|
7 |
3 |
*
of this 17.1 mm 15.9 mm fell in the first 3 days of the month
* * ie
anything measurable including ”trace” where you can’t measure it but there was
some, albeit minimal, precipitation

Gary Beynon
Oct 14th 2009
October 2009 weather
As I write this report (14th
November) we have just had 2 days of rainfall that, at 42.1mm, very nearly
equals the total rainfall in October of this year of 43.3mm. The one fact that
you can forecast about the weather is that it will be unpredictable! October was
a quiet month; there really was nothing extreme about it. It rained but there
was not a great deal, the temperatures were pleasant with no frosts and the
garden showed the effects by things not dying back and indeed we picked runner
beans well into the month. I felt that the autumn colours were quite something;
such a variation and we were so lucky that they lasted for a long time. The lack
of rain left the ground hard and, may I remind you that it is the 6 months from
October to March that we rely on to fill up the aquifers. This period has not
started well (but November is making up ground fast!).October last year was
special in that it snowed on the 28th . The actual data is below with
some comparisons from the past.
| October
Statistics |
|
2009 |
2008 |
|
Rainfall mm |
|
43.3 |
68.3 |
| 28 year average
rainfall |
|
83.4 |
| |
|
|
|
|
Max Temp ºC |
|
18.4 |
19.0 |
|
Mean max ºC |
|
15.17 |
13.70 |
| |
|
|
|
|
Min Temp ºC |
|
3.00 |
-1.00 |
|
Mean min ºC |
|
7.97 |
4.90 |
| |
|
|
|
| Days with
temp >15 ºC |
|
20 |
12 |
The October rainfall graph is
shown below.

Gary Beynon
November 14th 2009
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NOVEMBER
2009 WEATHER
November was wet! I doubt anyone
will disagree with that statement; but compared with Cumbria we escaped very
lightly. It was not the wettest month I have recorded since I started to keep
the data in 1981 but it is well up the leader board. The wettest I have was in
October 1987 when we had 190.4 mm and the wettest November was 2002 at 168.5 mm.
What is perhaps more unusual was that there was a recordable amount of rain
every day of the month. (Recordable in weather terminology means something less
than 0.1mm and is recorded as “trace”.) In fact there has been rain since
October 30th. 32 days of rain; little wonder that the ground is wet
but the lake opposite the Chiltern Hospital is well down, presumably due to
water extraction by Veola. Other than the rainfall it was not a particularly
remarkable month. It was really rather mild with 2 air frosts and just the 1 day
of a minus temperature (early this morning the 1st December----yes
December but I record the data at 0800 hrs each day and it refers to the
previous day which is standard practice).
The facts and figures
| November
Statistics |
|
2009 |
2008 |
|
Rainfall mm |
|
165.90 |
89.30 |
| Days of rain |
|
30 |
22 |
| |
|
|
|
|
Max Temp ºC |
|
16 |
14 |
|
Mean max ºC |
|
11.11 |
9.80 |
| |
|
|
|
|
Min Temp ºC |
|
-0.30 |
-1.00 |
|
Mean min ºC |
|
5.75 |
4.40 |
| |
|
|
|
| Days with
temp >15 ºC |
|
1 |
0 |
| Days with
temp <10 ºC |
|
8 |
13 |
The rainfall chart for November
1981 to 2009 is shown below.

Gary Beynon
November 14th 2009
DECEMBER
2009 WEATHER REPORT
Do I dare talk about the weather
after what we have been experiencing during the last week or so? If you don’t
want to know the result, please turn off the volume and close your eyes now.
Return round about June when-hopefully-the weather will be a deal more pleasant.
It was wet, it was cold, we had
snow before Christmas and all in all there was little to recommend December.
Chris asked if I could look at the records to see if the winters were getting
snowier; I am part way through compiling the data. My recommendations for snow
chains or hibernation will appear shortly. Compared with 2008, this last
December was a lot wetter but average temperatures were similar.
The rainfall over the full year
was less than the previous 4 years but very close to the average for the last 28
years.
| December
Statistics |
|
2009 |
2008 |
|
Rainfall mm |
|
118.4 |
41.9 |
| Days of rain/snow |
|
24 |
13 |
| |
|
|
|
| December average
rainfall mm |
|
78.42 |
| |
|
|
|
| Total rain for the
year mm |
|
793 |
906 |
| Average rainfall
over period 1981 - 2009 (28 years) mm |
|
781.85 |
| |
|
|
|
|
Max Temp ºC |
|
11.7 |
12.6 |
|
Mean max ºC |
|
5.9 |
6.0 |
| |
|
|
|
|
Min Temp ºC |
|
-5.7 |
-3.0 |
|
Mean min ºC |
|
0.68 |
1.75 |
| |
|
|
|
The rainfall graphs are shown
below.


Gary Beynon
January 14th 2010
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