Friday 31 May 2013

Friday 31 May 2013

Sunny but with a cloudy evening.
Temps: Min: 12.8; Max: 18.7.
Rain: Nil.  Pres: 1024 mb.

It was the warmest day since April 23rd, but the temperature didn't reach 20 degs C during May for the first time since at least 2003. 

Thursday 30 May 2013

Sunny and rather breezy.
Temps: Min: 13.7; Max: 17.1.
Rain: Nil.  Pres: 1018 mb.

Thursday 30 May 2013

Wednesday 29 May 2013

Overnight rain followed by a mostly cloudy but mainly dry morning.  Dry with sunny intervals in the afternoon.
Temps: Min: 12.1; Max: 17.1.
Rain: 14.0 mm.  Pres: 1012 mb.

Wednesday 29 May 2013

Tuesday 28 May 2013

Sunny intervals with one or two passing showers.
Temps: Min: 9.4; Max: 16.2.
Rain: 0.2 mm.  Pres: 1005 mb.

Tuesday 28 May 2013

Dates of Reaching 20 Degrees C

Here are the dates from the last 9 years when 20 degrees C was first reached at this location in that year:

2004 - April 26
2005 - May 1
2006 - April 25
2007 - April 22
2008 - May 4
2009 - May 31
2010 - April 26
2011 - April 25
2012 - May 23

As of May 28, 20 degrees C is yet to be reached in 2013.  As can be seen above it has always happened in either April or May [On 5 out of 9 occasions between April 22 and 26]!
2009 was the year it took longest to attain that temperature, until May 31 in fact, but with just 3 days to go will this year set a new record and 20 degrees C not occur until June?

Monday 27 May 2013

AM: Sunny intervals at first, then cloudy.
PM: Rain. Some cloud breaks in the evening.
Temps: Min: 8.2; Max: 15.7.
Rain: 15.5 mm.  Pres: 1004.5 mb.

Monday 27 May 2013

Sunday 26 May 2013

Mostly sunny.
Temps: Min: 6.4*; Max: 16.8.
Rain: Nil.  Pres: 1021 mb.

*It was the coldest night since April 20th/21st.

Saturday 25 May 2013

Saturday 25 May 2013

Mainly sunny. More cloud to the north during the afternoon.
Temps: Min: 7.2; Max: 16.7.
Rain: Nil.  Pres: 1022 mb.

Friday 24 May 2013

Friday 24 May 2013

Showers overnight and in the mainly cloudy morning.  Dry with lengthening sunny intervals in the afternoon.
Temps: Min: 8.8; Max: 12.2.
Rain: 5.5 mm.  Pres: 1020.5 mb.

*Another 1.5 degs C off the maximum from yesterday, but today was still not the coldest ever May day at this location [since 2004], as on the 14th of May 2005 the temperature peaked at just 11.0 degs.
**Since at least 2004 the temperature has always exceeded 20 degs C during May - except in 2013, and there are only seven days to go!

Thursday 23 May 2013

Sunny intervals.  Showers in the afternoon and evening, some heavy.
A fresh northerly wind too as pressure is low to the east of the UK at the moment.
Temps: Min:  8.7; Max: 13.7*.
Rain: 1.5 mm.  Pres: 1021 mb.

*It was the coldest day since 27th April.

Thursday 23 May 2013

April 2013 Summary

In Brief:
A very cold first week, particularly by day.  Mainly dry, apart from the second week.

Temperature [Minimum]:
The lowest night-time temperature of the month was 0.3 degs C, on the night of the 2nd/3rd. This was the second coldest April night [since at least 2004] at this location, narrowly missing the coldest ever, which was 0.2 in April 2008.
Conversely, the mildest night of April 2013, 13.7 degs C on the night of the 13th/14th, was the warmest ever April night of the last ten Aprils at this location.
The average night-time temperature for April 2013 was 8.33 degs C, making it the third warmest of the last ten, behind 2007 and 2011, however please see note * below.

There were at least five nights where the minimum temperature fell below 5 degs C during the month, all of which occurred during the first week.


Temperature [Maximum]:
The coldest day of the month was the 1st with a maximum of 7.1 degs C**.  This was easily the coldest ever April day [since at least 2004] at this location, the previous being 8.8 degs C in 2012.
The warmest day of the month was the 23rd, where the temperature reached 19.7 degs C.
The average daytime temperature for the month was 13.9 degs C, the second lowest of the last ten, with 2012 being the coldest with 13.41 degs C, however please see note * below.

* There were no individual reports for three days this month, although extremes for this period are still noted.  Normally these short and rare breaks are insignificant in calculating averages, however this break occurred during a very cold spell, meaning that all figures 'lost' were below the average without them.   Therefore I have calculated estimates, which are:
Minimum: 7.76 degs C [replacing 8.33]
Maximum: 13.4 degs C [replacing 13.9].
Using the estimates, this April's night-time average temperature is still the third highest of the last ten, however it now becomes the coldest for daytime temperatures, slightly colder than 2012 [13.41].

** It is possible that the maximum temperature was below 7.1 degs C on the 5th and 6th.


Rainfall:
39.2 mm of rain fell during the month, making it the driest of any month since March 2012, and the fourth driest April of the last six.  The wettest day itself was the 13th, with 10 mm of rain.
There were approximately 13 completely dry days, and approximately 17 with no measurable rain.
35.6 mm of the total rainfall fell from the 8th to the 17th.

Cumulatively, 361.5 mm of rain has now fallen during the first four months of 2013, which is the same amount as fell during the first five in 2012.  The figure to April 2012 was 324.9 mm, so 2013 is still 36.6 mm ahead.



Wednesday 22 May 2013

Sunny intervals, lengthening during the afternoon and leading to a sunny evening.
Temps: Min: 11.5; Max: 16.6.
Rain: Nil.  Pres: 1022 mb.

Tuesday 21 May 2013

Mainly cloudy with a little sun at times.  Rather a cool breeze.
Temps: Min: 13.0; Max: 14.9.
Rain: Nil.  Pres: 1018 mb.

Monday 20 May 2013

Monday 20 May 2013

Sunny intervals for a time but mainly cloudy from late morning. Cloud breaks in the evening.
Temps: Min: 11.1; Max: 17.5.
Rain: Nil.  Pres: 1016 mb.

Sunday 19 May 2013

Sunday 19 May 2013

AM: Sunny intervals. 
PM: Thicker cloud at first cleared westwards later leaving a sunny evening.
Temps: Min: 10.5; Max: 16.7.
Rain: Nil.  Pres: 1016 mb.

Saturday 18 May 2013

Sunny.
Partly cloudy in the evening.
Temps: Min: 10.1; Max: 16.6.
Rain: Nil.  Pres: 1010.5 mb.

Saturday 18 May 2013

Friday 17 May 2013

AM: Sunny.
PM: Sunny intervals. Heavy cloud to the north.
Temps: Min: 6.8; Max: 16.1.
Rain: Nil.  Pres: 1010 mb.

Thursday 16 May 2013

Thursday 16 May 2013

Sunny intervals and showers, with hail.
Temps: Min: 7.7; Max: 14.2.
Rain: 6.8 mm.  Pres: 1001 mb.

Wednesday 15 May 2013

Sunny intervals.
Temps: Min: 9.2; Max: 14.0.
Rain: Nil.  Pres: 1001.5 mb.


Wednesday 15 May 2013

Tuesday 14 May 2013

Overcast with rain for much of the day.  Drier for a time in the afternoon with a slither of blue sky visible - yes, really!!
Heavier rain with strong and squally winds in the evening.

Temps: Min: 7.8*; Max: 13.9.
Rain: 28.2 mm.  Pres: 995.5 mbs [2200].

*This temperature was reached during the day.  The overnight low Monday/Tuesday was 9.4 degs C.
It was the wettest day since 21st March, and the pressure at 2200 was almost 20 mbs lower than 24 hours earlier.

Tuesday 14 May 2013

Monday 13 May 2013

Sunny intervals in the morning. Cloudy in the afternoon with a passing shower.
Temps: Min: 11.2; Max: 16.7.
Rain: Trace.  Pres: 1015 mb.

Monday 13 May 2013

Sunday 12 May 2013

Cloudy with drizzly rain in the morning. Mostly dry in the afternoon but still with the odd burst of drizzly rain.
Temps: Min: 9.6; Max: 16.4.
Rain: 0.9 mm.  Pres: 1016 mb.

Saturday 11 May 2013

Showers overnight followed by a mainly dry but cloudy day with one or two showers.  Sunny intervals in the afternoon.
Temps: Min: 10.0; Max: 15.7.
Rain: 2.8 mm.  Pres: 1015.5 mb.

Saturday 11 May 2013

Friday 10 May 2013

Mostly cloudy. Rain from mid-afternoon.
Temps: Min: 10.9; Max: 18.2.*
Rain: 3.8 mm.  Pres: 1014.5 mb.

*This figure was reached during a brief brighter spell and was not typical of the maximum temperature for most of the day.

Friday 10 May 2013

Thursday 9 May 2013

Mainly cloudy and windy with showers in the morning and persisitant rain in the afternoon.
Temps: Min: 9.4; Max: 16.7.
Rain: 4.1 mm.  Pres: 1012.5 mb.

Thursday 9 May 2013

Wednesday 8 May 2013

Cloudy in the morning with a period of rain.  Sunny intervals in the afternoon.
Temps: Min: 14.0*; Max: 17.4**.
Rain: 7.7 mm.  Pres: 1012 mb.

*Highest minimum since November 19th/20th, 2012.
**Although the weather turned unsettled on Wednesday, the maximum was actually higher than the previous two days. This was because the wind turned from an on-shore, and therefore cool, south-easterly, which is usually the case as a high pressure area moves away eastwards, to a south-westerly, which arrives in Falmouth across land.


Tuesday 7 May 2013

Tuesday 7 May 2013

Sunny intervals, though of a hazy nature in the afternoon.
Cloudy in the evening with rain.
Temps: Min: 11.6; Max: 16.5.
Rain: 2.9 mm.  Pres: 1012 mb.

*Even though it did not start raining until the evening, it was the wettest 24 hour period [2200-2200] since 13th April.

Monday 6 May 2013

AM: Sunny intervals.
PM: Low cloud.  Misty in the evening.
Temps: Min: 9.2; Max: 15.4.
Rain: Nil.  Pres: 1021 mb.

Sunday 5 May 2013

AM: Sunny intervals.
PM: Sunny.
Temps: Min: 10.6; Max: 18.5.
Rain: Nil.  Pres: 1023 mb.

Saturday 4 May 2013

Saturday 4 May 2013

A cloudy morning with a passing shower.  Sunny intervals this afternoon.  Fast moving low-level broken strato-cumulus clouds this evening.
Temps: Min: 11.6; Max: 16.8.
Rain: 0.8 mm.  Pres: 1023 mb.

Friday 3 May 2013

AM: Sunny intervals.
PM: Mostly cloudy but still with some cloud breaks, specially in the evening.
Temps: Min: 9.5; Max: 17.3.
Rain: Nil.  Pres: 1023 mb.

Thursday 2 May 2013

Thursday 2 May 2013

AM: Sunny intervals.
PM: Sunny.
Temps: Min: 9.4; Max: 17.9.
Rain: Nil. Pres: 1024.5 mb.

Wednesday 1 May 2013

Wednesday 1 May 2013

Sunny. 
Temps: Min: 7.8; Max: 14.8.
Rain: Nil.  Pres: 1025 mb.