Monthly Summary 2008


	Jan			Feb			Mar			April			May			June			July			August			September			October			November			December
Air Temperatures
The Highest Maximum:	14.0	C	20th	13.4	C	9th,10th	13.6	C	31st	19.5	C	26th	26.2	C	11th	25.0	C	9th	28.7	C	28th	24.5	C	30th	20.2	C	10th	21.0	C	12th	14.4	C	15th	12.5	C	20th
The Lowest Maximum:	3.0	C	3rd	0.9	C	19th	5.0	C	24th	6.1	C	6th	11.7	C	16th	14.3	C	12th	16.1	C	17th	17.0	C	13th	14.9	C	16th	6.1	C	29th	2.6	C	29th	-0.1	C	31st
The Highest Minimum:	10.1	C	21st	8.1	C	24th	7.4	C	2nd	10.8	C	27th	13.1	C	11th	15.0	C	28th	16.4	C	27th	16.0	C	30th	13.3	C	11th	10.2	C	15th	9.3	C	16th	9.0	C	22nd
The Lowest Minimum:	-0.5	C	3rd	-4.9	C	17th	-2.6	C	5th	-1.1	C	8th	3.0	C	20th	6.5	C	16th	8.0	C	4th,5th,21st	8.6	C	23rd	5.2	C	27th	-2.7	C	29th	-2.5	C	23rd	-4.1	C	31st
The Mean Maximum:	9.7	C		9.5	C		9.7	C		12.5	C		18.5	C		19.1	C		21.3	C		20.2	C		17.5	C		13.7	C		9.5	C		6.1	C
The Mean Minimum:	3.3	C		1.3	C		2.4	C		4.0	C		8.8	C		10.3	C		12.0	C		12.8	C		9.9	C		5.7	C		4.2	C		1.2	C
The Overall Mean:	6.5	C		5.4	C		6.1	C		8.3	C		13.7	C		14.7	C		16.7	C		16.5	C		13.7	C		9.7	C		6.9	C		3.7	C
Difference from the Monthly Mean:	2.1	C		0.7	C		-1.4	C		0.1	C		2.4	C		0.4	C		-0.1	C		0.1	C		0.0	C		-0.3	C		0.4	C		-0.8	C

Black Bulb
Maximum (at 0900):	12.5	C	20th	11.5	C	10th	16.2	C	2nd	21.6	C	27th	34.0	C	6th	35.0	C	9th	33.2	C	1st	27.8	C	4th	21.3	C	2nd	17.5	C	13th	12.3	C	15th	10.2	C	20th
Mean (at 0900):	6.0	C		6.0	C		7.6	C		13.2	C		21.8	C		23.4	C		22.2	C		19.4	C		16.6	C		11.8	C		6.5	C		3.1	C

Relative Humidity:
Highest Relative Humidity (at 0900):	100.0	%	1st,4th,9th,11th,28th	100.0	%	4th,18th,19th,20th	100.0	%	31st	97.5	%	23rd	98.8	%	27th	98.9	%	3rd	95.7	%	9th	98.0	%	18th	100.0	%	27th	100.0	%	5th	100.0	%	4th,6th.18th, 29th	100.0	%	9th
Lowest Relative Humidity (at 0900):	71.1	%	7th	74.3	%	3rd	60.5	%	25th	62.7	%	28th	55.3	%	20th	53.5	%	9th	44.8	%	1st	70.3	%	4th	67.1	%	15th	62.5	%	3rd	67.9	%	21st	81.7	%	21st
Mean Relative Humidity (at 0900):	90.0	%		88.6	%		82.9	%		78.8	%		76.4	%		72.3	%		77.6	%		85.6	%		87.9	%		86.5	%		90.5	%		93.3	%

Dew Point:
The Highest Dew Point (0900):	10.0	C	20th	8.0	C	23rd	9.2	C	15th	9.4	C	4th	13.6	C	5th	12.9	C	3rd, 8th	18.6	C	27th	16.7	C	6th	13.6	C	10th	14.4	C	7th	9.6	C	4th	10.2	C	20th
The Lowest Dew Point (at 0900):	-2.7	C	3rd	-3.0	C	19th	-6.0	C	25th	-1.3	C	6th	3.4	C	20th	6.6	C	15th	7.5	C	1st	10.7	C	13th	8.7	C	15th	-1.9	C	29th	-0.6	C	22nd,29th	-1.9	C	30th
The Mean Dew Point (at 0900):	4.4	C		2.1	C		2.6	C		4.8	C		9.5	C		10.1	C		12.8	C		13.4	C		11.3	C		7.4	C		5.1	C		2.2	C

Rainfall:
Total:	75.2	mm		18.0	mm		66.3	mm		29.6	mm		72.3	mm		39.9	mm		62.6	mm		86.0	mm		94.4	mm		49.9	mm		72.6	mm		31.8	mm
Difference from the Monthly Mean:	143.8	%		47.7	%		147.3	%		56.4	%		145.2	%		69.9	%		130.7	%		176.6	%		166.5	%		90.6	%		136.2	%		50.6	%
Duration:	50.2	hrs		12.3	hrs		59.2	hrs		27.8	hrs		67.2	hrs		42.9	hrs		40.4	hrs		52.4	hrs		58.2	hrs		38.3	hrs		46.0	hrs		41.3	hrs
Highest 24 hour fall (0900 to 0900):	22.5	mm	11th	7.2	mm	3rd	25.7	mm	15th	12.1	mm	29th	17.7	mm	26th	10.9	mm	2nd	14.0	mm	11th	24.7	mm	11th	32.7	mm	6th	15.4	mm	4th	20.0	mm	1st	9.7	mm	13th
Rain Days (>/=0.2mm):	17			7			15			14			12			8			12			19			15			12			16			11
Wet Days (>/=1.0mm):	13			6			12			9			10			8			12			14			11			7			13			5

Sunshine:
Total Duration of Bright Sunshine:	48.0	hrs		109.2	hrs		121.9	hrs		153.8	hrs		162.2	hrs		219.4	hrs		188.4	hrs		131.6	hrs		106.9	hrs		110.1	hrs		39.0	hrs		48.8	hrs
Sunniest day:	5.5	hrs	27th	7.4	hrs	18th	8.8	hrs	4th	10.2	hrs	17th	12.5	hrs	7th	11.7	hrs	19th	13.6	hrs	21st	10.7	hrs	15th	8.1	hrs	20th	8.1	hrs	21st	5.1	hrs	25th	4.9	hrs	30th
No. of days without sunshine:	9			7			2			3			4			3			2			4			4			3			11			10
Difference from the Monthly Mean:	108	%		177.9	%		130.2	%		114.9	%		95.4	%		139.2	%		106.6	%		77.5	%		80.7	%		126.1	%		67.8	%		126.1	%
Cloud cover (mean at 0900):	6.3	oktas	%	4.7	oktas	%	5.2	oktas	%	5.8	oktas	%	5.5	oktas	%	5.7	oktas	%	5.1	oktas	%	6.9	oktas	%	6.2	oktas	%	4.6	oktas	%	6.3	oktas	%	5.9	oktas	%

Pressure (reduced to sea level):
The Highest Pressure:	1034.7	mb	28th	1044.8	mb	16th	1035.9	mb	5th	1029.2	mb	3rd	1026.3	mb	5th	1025.8	mb	9th	1026.1	mb	22nd	1021.1	mb	28th	1038.2	mb	26th	1031.6	mb	9th	1033.2	mb	17th	1039.7	mb	26th
The Lowest Pressure:	980.5	mb	15th	995.3	mb	5th	965.8	mb	10th	988.4	mb	30th	1002.4	mb	28th	1006.2	mb	22nd	994.3	mb	7th	987.0	mb	12th	991.8	mb	6th	994.5	mb	5th	995.6	mb	29th	977.3	mb	4th
Mean Pressure (recorded at 0900):	1011.2	mb		1022.7	mb		1006.1	mb		1009.5	mb		1016.2	mb		1016.4	mb		1013.2	mb		1009.8	mb		1017.5	mb		1014.5	mb		1013.4	mb		1018.6	mb

Winds
Run of wind (mean over 24 hrs):	195.5	miles		136.1	miles		170.3	miles		137.0	miles		105.1	miles		98.3	miles		109.5	miles		99.7	miles		80.0	miles		134.5	miles		139.7	miles		126.2	miles
Mean daily wind speed:	10.6	mph		7.4	mph		9.2	mph		7.4	mph		5.7	mph		5.3	mph		5.9	mph		5.4	mph		4.3	mph		7.3	mph		7.6	mph		6.8	mph
Run of wind (cumulative):	6061.0	miles		3947.0	miles		5278.6	miles		4110.9	miles		3257.0	miles		2949.5	miles		3395.8	miles		3090.3	miles		2398.9	miles		4169.5	miles		4190.4	miles		3913.3	miles
Highest Maximum Gust:	53	mph	31st	60	mph	29th	60	mph	20th	40	mph	1st	48	mph	26th	36	mph	22nd	39	mph	20th	32	mph	22nd	35	mph	30th	39	mph	19th	46	mph	20th	40	mph	3rd
No. of gusts of 50mph or more:	0			1			6			0			0			0			0			0			0			0			0			0
Highest wind strength (at 0900):	46.1	mph	31st	17.3	mph	7th	32.3	mph	12th	26.5	mph	5th	19.6	mph	24th	16.1	mph	14th	17.3	mph	16th	16.1	mph	8th	11.5	mph	4th	23.1	mph	20th	23.1	mph	21st	21.9	mph	4th
Mean wind strength (at 0900):	10.4	mph		6.3	mph		12.0	mph		9.7	mph		8.3	mph		8.2	mph		7.4	mph		7.7	mph		5.9	mph		9.1	mph		12.2	mph		8.3	mph

Winds from the Following Directions:
North	1			0			3			0			2			4			0			0			2			0			5			0
North-north-east	0			0			1			0			2			1			0			0			0			0			0			0
North-east	1			1			0			2			9			2			0			0			1			2			1			2
East-north-east	1			0			0			2			9			1			2			0			1			0			0			2
East	0			6			0			3			2			1			1			0			5			0			1			3
East-south-east	1			0			0			1			0			0			2			0			1			0			0			0
South-east	0			1			0			2			2			1			1			2			1			4			0			1
South-south-east	1			0			2			0			1			0			4			2			3			0			0			1
South	8			6			3			4			2			2			4			3			4			4			4			2
South-south-west	11			4			4			3			0			2			1			10			1			5			5			5
South-west	2			5			0			4			0			3			4			7			4			2			2			3
West-south-west	1			2			2			3			0			0			1			2			2			2			0			0
West	2			0			6			1			0			4			3			1			0			5			1			0
West-north-west	1			0			2			0			0			0			2			1			2			2			1			4
North-west	1			1			4			2			0			6			6			1			2			3			3			4
North-north-west	0			0			3			3			0			3			0			1			0			1			5			2
Calm	0			3			1			0			2			0			0			1			1			1			2			2

Concrete
Lowest Concrete Minimum:	-2.2	C	7th	-8.5	C	17th	-5.4	C	5th	-3.4	C	8th	1.0	C	20th	5.2	C	16th	6.6	C	5th,13th	6.0	C	15th	3.8	C	27th	-5.3	C	29th	-4.8	C	23rd	-6.6	C	31st
Mean Concrete Minimum:	1.9	C		-1.0	C		0.4	C		2.5	C		7.8	C		9.0	C		11.4	C		11.5	C		8.5	C		3.6	C		2.2	C		-0.7	C

Evaporation
Piche	59.7	ml		46.1	ml		47.9	ml		76.8	ml		80.4	ml		98.7	ml		92.9	ml		73.3	ml		56.1	ml		59.7	ml		40.3	ml		26.2	ml

Days with:
Thunder:	0			0			0			1			1			0			2			0			1			0			0			0
Hail <5mm:	2			0			3			1			1			0			0			0			0			3			0			0
Hail >/=5mm:	0			0			0			0			0			0			0			0			0			0			0			0
Snow or snow & rain:	0			1			4			2			0			0			0			0			0			1			1			2
Snow lying:	0			0			1			1			0			0			0			0			0			0			0			0
Fog:	3			2			1			1			0			0			0			1			1			1			3			1
Air Frost:	2			7			5			4			0			0			0			0			0			1			3			14
Duration of Air Frost:	14	hrs		66	hrs		21	hrs		8	hrs		0	hrs		0	hrs		0	hrs		0	hrs		0	hrs		7	hrs		22	hrs		57	hrs
Gales:	0			0			0			0			0			0			0			0			0			0			0			0

Evaporation (#2)
Pan	9.88	mm		22.87	mm		108.71	mm		63.28	mm		69.04	mm		97.04	mm		97.6	mm		49.61	mm		33.97	mm		24.4	mm		6.02	mm		4.96	mm

This page was created by Pitsford Hall weather station on 01 January 2009.