Arnside & Silverdale AONB Weather

All Time Report

Missing Data
	Heversham	Silverdale	Warton
Year	Minutes	Minutes	Minutes
2006	220170!
2007	0
2008	0
2009	227580!
2010	0
2011	300
2012	0
2013	1800
2014	114450!
2015	0
2016	27630!
2017	0	406020!	230310!
2018	60	0	5310
2019	120	0	300
2020	240	0	31560!
2021	450720!	444900!	464130!
All Time

Mean Temperature
	Heversham	Silverdale	Warton
Year	°C	°C	°C
2006	13.2
2007	10.2
2008	9.7
2009	6.3
2010	8.5
2011	10.2
2012	9.3
2013	9.3
2014	10.6
2015	10.2
2016	10.7
2017	10.5	7.4	12.2
2018	10.6	10.4	10.9
2019	10.4	10.2	10.7
2020	10.7	10.5	11.0
2021	3.8	3.7	3.6
All Time	10.0	9.9	10.8

Low Temperature
	Heversham		Silverdale		Warton
Year	°C	When	°C	When	°C	When
2006	-1.9	03/11
2007	-6.4	22/12
2008	-6.2	31/12
2009	-7.8	01/01
2010	-10.5	03/12
2011	-6.4	21/01
2012	-6.8	03/02
2013	-4.9	16/01
2014	-3.4	29/12
2015	-3.8	03/02
2016	-3.4	29/11
2017	-5.8	11/12	-4.1	11/12	-6.0	11/12
2018	-5.7	07/02	-5.8	28/02	-5.9	28/02
2019	-5.8	03/02	-5.2	03/02	-5.5	03/02
2020	-4.2	30/12	-3.9	31/12	-3.1	19/01
2021	-4.9	07/01	-5.0	11/02	-5.5	11/02
All Time	-10.5	2010	-5.8	2018	-6.0	2017

High Temperature
	Heversham		Silverdale		Warton
Year	°C	When	°C	When	°C	When
2006	32.3	18/07
2007	27.9	11/06
2008	27.4	11/05
2009	27.8	23/06
2010	26.8	22/05
2011	27.6	27/06
2012	26.1	25/05
2013	30.3	19/07
2014	28.9	25/07
2015	30.4	01/07
2016	31.2	19/07
2017	28.8	25/05	20.5	16/10	28.3	19/06
2018	31.9	26/06	30.7	27/06	31.0	27/06
2019	32.2	25/07	30.7	25/07	33.3	25/07
2020	31.2	12/08	31.4	12/08	31.6	12/08
2021	13.1	20/02	12.7	20/02	12.2	23/02
All Time	32.3	2006	31.4	2020	33.3	2019

Heating Required
	Heversham	Silverdale	Warton
Year	°C Days	°C Days	°C Days
2006	1195.5
2007	2980.1
2008	3199.1
2009	2954.6
2010	3611.5
2011	2994.3
2012	3336.3
2013	3348.6
2014	2277.5
2015	2992.8
2016	2712.1
2017	2905.1	909.6	1287.3
2018	2951.4	2997.8	2813.6
2019	2975.4	3012.2	2861.5
2020	2874.4	2940.6	2587.6
2021	755.4	817.7	624.8
All Time	44064.1	10677.9	10174.8

Cooling Required
	Heversham	Silverdale	Warton
Year	°C Days	°C Days	°C Days
2006	118.5
2007	37.6
2008	36.4
2009	34.3
2010	39.9
2011	38.1
2012	32.5
2013	81.2
2014	66.6
2015	38.7
2016	78.7
2017	47.5	0.2	39.4
2018	149.4	114.9	146.3
2019	78.3	58.2	81.2
2020	90.1	76.6	82.4
2021	0.0	0.0	0.0
All Time	967.8	249.9	349.3

Days High Temp ≥ 25°C
	Heversham	Silverdale	Warton
Year	Days	Days	Days
2006	21
2007	4
2008	5
2009	8
2010	4
2011	5
2012	4
2013	13
2014	9
2015	5
2016	11
2017	9	0	4
2018	31	19	31
2019	10	6	12
2020	17	16	16
2021	0	0	0
All Time	156	41	63

Days High Temp ≤ 0°C
	Heversham	Silverdale	Warton
Year	Days	Days	Days
2006	0
2007	0
2008	1
2009	1
2010	14
2011	0
2012	0
2013	0
2014	0
2015	0
2016	0
2017	0	0	0
2018	1	1	0
2019	0	0	0
2020	0	0	0
2021	0	0	0
All Time	17	1	0

Days Low Temp ≤ 0°C
	Heversham	Silverdale	Warton
Year	Days	Days	Days
2006	7
2007	30
2008	48
2009	47
2010	88
2011	35
2012	40
2013	58
2014	17
2015	23
2016	28
2017	35	18	21
2018	33	27	33
2019	26	25	31
2020	19	13	12
2021	19	22	19
All Time	553	105	116

Rain
	Heversham	Silverdale	Warton
Year	mm	mm	mm
2006	873.4
2007	1188.8
2008	1389.4
2009	595.6
2010	889.8
2011	1352.6
2012	1412.0
2013	1074.6
2014	983.6
2015	1437.8
2016	1072.8
2017	1297.2	385.2	898.4
2018	983.6	1027.6	837.8
2019	1326.2	1344.4	1225.2
2020	1323.2	1471.4	1069.4
2021	275.4	262.4	193.0
All Time	17476.0	4491.0	4223.8

Wettest Day
	Heversham		Silverdale		Warton
Year	mm	When	mm	When	mm	When
2006	37.8	27/08
2007	43.6	15/06
2008	59.4	25/10
2009	35.4	11/01
2010	40.4	22/10
2011	49.8	17/09
2012	45.0	10/05
2013	42.8	05/08
2014	30.8	28/10
2015	85.0	05/12
2016	35.6	22/08
2017	63.6	22/11	75.8	22/11	93.0	22/11
2018	39.0	13/10	45.6	13/10	35.4	13/10
2019	40.2	27/09	59.4	27/09	64.8	27/09
2020	44.6	09/02	42.2	09/02	32.8	09/02
2021	47.6	24/02	35.0	19/01	29.4	19/01
All Time	85.0	2015	75.8	2017	93.0	2017

High Rain Rate
	Heversham		Silverdale		Warton
Year	mm/Hr	When	mm/Hr	When	mm/Hr	When
2006	195.2	03/12
2007	311.4	22/12
2008	1152.0	25/07
2009	122.6	14/11
2010	1280.0	04/07
2011	1645.8	20/09
2012	295.4	28/06
2013	205.8	04/08
2014	1645.8	28/10
2015	185.8	01/06
2016	155.6	11/06
2017	1440.0	16/10	108.6	13/10	288.0	19/07
2018	84.0	20/09	192.0	29/11	138.8	24/01
2019	1645.8	28/11	180.0	27/09	88.6	13/03
2020	177.2	22/08	202.2	27/06	548.6	18/11
2021	1152.0	24/02	12.8	21/01	9.6	28/01
All Time	1645.8	2011	202.2	2020	548.6	2020

Days Rained Measurably
	Heversham	Silverdale	Warton
Year	Days	Days	Days
2006	131
2007	223
2008	244
2009	144
2010	205
2011	247
2012	244
2013	201
2014	200
2015	238
2016	209
2017	257	66	136
2018	221	215	195
2019	239	244	218
2020	225	235	202
2021	41	42	31
All Time	3269	802	782

Days Rain ≥ 2 mm
	Heversham	Silverdale	Warton
Year	Days	Days	Days
2006	86
2007	125
2008	141
2009	74
2010	95
2011	162
2012	157
2013	133
2014	127
2015	145
2016	130
2017	141	39	91
2018	128	123	101
2019	144	151	137
2020	145	150	133
2021	22	25	16
All Time	1955	488	478

Days Rain ≥ 20 mm
	Heversham	Silverdale	Warton
Year	Days	Days	Days
2006	10
2007	9
2008	13
2009	7
2010	9
2011	8
2012	15
2013	9
2014	4
2015	13
2016	7
2017	7	2	8
2018	5	3	4
2019	9	9	9
2020	11	16	8
2021	4	5	1
All Time	140	35	30

Mean UV Index
	Heversham	Warton
Year	Index	Index
2006	0.7
2007	0.5
2008	0.2
2009	0.1
2010	0.1
2011	0.1
2012	0.2
2013	0.4
2014	0.3
2015	0.4
2016	0.3
2017	0.3	0.5
2018	0.3	0.3
2019	0.3	0.4
2020	0.2	0.4
2021	0.0	0.0
All Time	0.3	0.4

High UV Index
	Heversham		Warton
Year	Index	When	Index	When
2006	9.9	12/07
2007	9.9	17/05
2008	8.8	30/06
2009	9.1	22/06
2010	7.5	30/06
2011	9.1	21/06
2012	8.1	06/06
2013	8.7	22/06
2014	8.4	24/06
2015	7.1	25/05
2016	6.8	26/06
2017	5.6	24/06	7.0	12/06
2018	5.2	18/06	6.1	18/06
2019	4.8	01/07	6.5	02/07
2020	4.7	01/07	6.2	16/07
2021	0.8	25/02	1.3	23/02
All Time	9.9	2006	7.0	2017

Mean Solar Radiation
	Heversham	Warton
Year	W/m2	W/m2
2006	115
2007	107
2008	98
2009	56
2010	101
2011	102
2012	94
2013	102
2014	89
2015	98
2016	108
2017	97	107
2018	107	84
2019	102	104
2020	103	113
2021	29	31
All Time	99	99

High Solar Radiation
	Heversham		Warton
Year	W/m2	When	W/m2	When
2006	1171	20/06
2007	1394	25/07
2008	1297	12/06
2009	1266	11/06
2010	1239	05/08
2011	1747	21/06
2012	1218	14/05
2013	1259	17/05
2014	1281	30/06
2015	1308	25/05
2016	1294	03/07
2017	1238	14/07	1355	12/06
2018	1179	16/05	1188	21/06
2019	1294	01/07	1267	02/07
2020	1299	01/07	1288	08/07
2021	613	25/02	708	22/02
All Time	1747	2011	1355	2017

Evapo- transpiration
	Heversham	Warton
Year	mm	mm
2006	396.825
2007	576.972
2008	531.995
2009	371.218
2010	524.303
2011	522.235
2012	485.591
2013	543.152
2014	439.472
2015	533.529
2016	541.149
2017	513.143	315.695
2018	581.687	524.145
2019	525.088	630.193
2020	558.388	611.186
2021	34.752	23.803
All Time	7679.499	2105.022

Average Wind
	Heversham	Silverdale	Warton
Year	Mph	Mph	Mph
2006	3.1
2007	3.0
2008	3.2
2009	3.1
2010	2.0
2011	2.8
2012	2.5
2013	2.7
2014	2.8
2015	3.1
2016	2.1
2017	2.5	1.8	3.4
2018	2.4	2.2	3.7
2019	2.0	2.1	3.5
2020	2.7	2.1	4.3
2021	3.0	1.3	4.2
All Time	2.6	2.1	3.8

High Wind
	Heversham		Silverdale		Warton
Year	Mph	When	Mph	When	Mph	When
2006	46	03/12
2007	46	18/01
2008	42	31/01
2009	44	08/04
2010	46	11/11
2011	45	17/10
2012	45	04/04
2013	48	05/12
2014	48	12/02
2015	44	14/01
2016	41	26/12
2017	49	11/01	34	17/10	60	20/10
2018	43	12/10	45	16/12	58	23/08
2019	40	09/02	42	09/02	47	12/03
2020	41	21/02	40	17/02	45	09/02
2021	59	14/02	26	23/02	45	23/02
All Time	59	2021	45	2018	60	2017

Wind Run
	Heversham	Silverdale	Warton
Year	Miles	Miles	Miles
2006	15759.5
2007	26438.0
2008	28301.5
2009	20880.5
2010	17812.0
2011	24316.5
2012	22193.5
2013	23719.0
2014	19735.5
2015	26844.0
2016	17701.0
2017	21991.0	3585.5	16749.5
2018	20942.5	19251.5	32030.0
2019	17178.0	18655.6	30775.0
2020	23226.5	18802.5	35319.5
2021	3679.5	1793.5	4327.0
All Time	330718.5	62088.6	119201.0

Dominant Wind Direction
	Heversham	Silverdale	Warton
Year
2006	W	-	-
2007	W	-	-
2008	W	-	-
2009	W	-	-
2010	W	-	-
2011	W	-	-
2012	W	-	-
2013	W	-	-
2014	W	-	-
2015	W	-	-
2016	W	-	-
2017	W	WSW	W
2018	WSW	W	W
2019	W	W	W
2020	W	W	W
2021	NE	W	NE
All Time	W	W	W

An ! on a Data Missing value indicates that the weather station measurements for the time period will be excluded from the evaluation of some records because the amount of missing data undermines their validity.The maximum data that can be missing is 8640 minutes for a year.

Wind Direction Percentages for All Time

Move the cursor over the plot to see the exact data values.