Arnside & Silverdale AONB Weather

All Time Report

Missing Data
	Arnside	Heversham	Silverdale	Warton
Year	Minutes	Minutes	Minutes	Minutes
2006		220170!
2007		0
2008		0
2009		227580!
2010		0
2011		300
2012		0
2013	334830!	1800
2014	2730	114450!
2015	30	0
2016	27660!	27630!
2017	42210!	0	406020!	230310!
2018	5490	60	0	5310
2019	1620	120	0	300
2020		240	0	31560!
2021		12960!	0	19440!
2022	193560!	16830!	1650	7170
2023	390	1290	150	76530!
2024	630	630	45	6330
2025	414660!	414690!	414780!	414660!
All Time

Mean Temperature
	Arnside	Heversham	Silverdale	Warton
Year	°C	°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	10.5	9.3
2014	11.1	10.6
2015	10.1	10.2
2016	10.6	10.7
2017	10.8	10.5	7.4	12.2
2018	10.4	10.6	10.4	10.9
2019	10.1	10.4	10.2	10.7
2020		10.7	10.5	11.0
2021		10.5	10.2	10.8
2022	12.5	10.9	11.0	11.3
2023	10.9	11.1	11.1	10.5
2024	10.6	10.8	10.7	11.2
2025	4.9	5.0	5.0	5.4
All Time	10.6	10.1	10.3	10.9

Low Temperature
	Arnside		Heversham		Silverdale		Warton
Year	°C	When	°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	-1.7	23/11	-4.9	16/01
2014	-3.4	13/12	-3.4	29/12
2015	-4.3	03/02	-3.8	03/02
2016	-3.7	29/12	-3.4	29/11
2017	-4.6	11/12	-5.8	11/12	-4.1	11/12	-6.0	11/12
2018	-5.3	28/02	-5.7	07/02	-5.8	28/02	-5.9	28/02
2019	-6.1	03/02	-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
2022	-10.1	15/12	-9.7	15/12	-8.2	15/12	-9.1	15/12
2023	-5.8	17/01	-6.2	17/01	-5.2	17/01	-5.6	17/01
2024	-7.4	18/01	-7.2	18/01	-6.1	18/01	-6.9	18/01
2025	-7.1	10/01	-6.7	09/01	-6.0	10/01	-6.4	10/01
All Time	-10.1	2022	-10.5	2010	-8.2	2022	-9.1	2022

High Temperature
	Arnside		Heversham		Silverdale		Warton
Year	°C	When	°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	26.6	26/08	30.3	19/07
2014	30.4	25/07	28.9	25/07
2015	31.3	01/07	30.4	01/07
2016	31.1	19/07	31.2	19/07
2017	29.6	26/05	28.8	25/05	20.5	16/10	28.3	19/06
2018	31.0	27/06	31.9	26/06	30.7	27/06	31.0	27/06
2019	32.0	25/07	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			32.6	22/07	29.9	22/07	31.8	22/07
2022	36.1	19/07	35.9	19/07	36.1	19/07	36.0	19/07
2023	31.6	12/06	31.4	12/06	32.0	12/06	29.3	04/09
2024	26.7	26/06	28.4	31/07	27.8	31/07	28.4	31/07
2025	18.8	09/03	19.5	09/03	18.4	09/03	19.2	09/03
All Time	36.1	2022	35.9	2022	36.1	2022	36.0	2022

Heating Required
	Arnside	Heversham	Silverdale	Warton
Year	°C Days	°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	1048.2	3348.6
2014	2688.2	2277.5
2015	3033.4	2992.8
2016	2721.9	2712.1
2017	2552.3	2905.1	909.6	1287.3
2018	2991.0	2951.4	2997.8	2813.6
2019	3066.6	2975.4	3012.2	2861.5
2020		2874.4	2940.6	2587.6
2021		2883.8	3039.0	2736.3
2022	1391.2	2707.8	2736.5	2641.1
2023	2791.6	2743.1	2727.0	2479.9
2024	2841.8	2794.6	2813.5	2646.3
2025	1032.0	1023.2	1023.8	997.8
All Time	26158.2	55461.2	22200.0	21051.4

Cooling Required
	Arnside	Heversham	Silverdale	Warton
Year	°C Days	°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	9.8	81.2
2014	71.5	66.6
2015	34.6	38.7
2016	65.6	78.7
2017	38.9	47.5	0.2	39.4
2018	124.8	149.4	114.9	146.3
2019	70.5	78.3	58.2	81.2
2020		90.1	76.6	82.4
2021		115.2	78.4	100.4
2022	69.6	108.7	81.2	105.5
2023	75.7	113.1	90.7	54.0
2024	39.0	69.6	49.2	72.4
2025	0.0	0.1	0.0	0.1
All Time	600.0	1374.5	549.4	681.7

Days High Temp ≥ 25°C
	Arnside	Heversham	Silverdale	Warton
Year	Days	Days	Days	Days
2006		21
2007		4
2008		5
2009		8
2010		4
2011		5
2012		4
2013	1	13
2014	9	9
2015	4	5
2016	8	11
2017	7	9	0	4
2018	25	31	19	31
2019	11	10	6	12
2020		17	16	16
2021		14	13	16
2022	10	15	9	13
2023	13	21	15	6
2024	3	11	5	12
2025	0	0	0	0
All Time	91	217	83	110

Days High Temp ≤ 0°C
	Arnside	Heversham	Silverdale	Warton
Year	Days	Days	Days	Days
2006		0
2007		0
2008		1
2009		1
2010		14
2011		0
2012		0
2013	0	0
2014	0	0
2015	0	0
2016	0	0
2017	0	0	0	0
2018	0	1	1	0
2019	0	0	0	0
2020		0	0	0
2021		0	0	0
2022	2	1	3	0
2023	0	0	0	0
2024	0	0	0	0
2025	0	1	0	0
All Time	2	19	4	0

Days Low Temp ≤ 0°C
	Arnside	Heversham	Silverdale	Warton
Year	Days	Days	Days	Days
2006		7
2007		30
2008		48
2009		47
2010		88
2011		35
2012		40
2013	7	58
2014	16	17
2015	34	23
2016	34	28
2017	32	35	18	21
2018	35	33	27	33
2019	31	26	25	31
2020		19	13	12
2021		40	41	39
2022	13	29	23	29
2023	37	31	29	32
2024	27	24	19	23
2025	21	15	13	21
All Time	287	673	208	241

Rain
	Arnside	Heversham	Silverdale	Warton
Year	mm	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	356.0	1074.6
2014	773.0	983.6
2015	1114.6	1437.8
2016	763.6	1072.8
2017	935.6	1297.2	385.2	898.4
2018	1040.0	983.6	1027.6	837.8
2019	1630.4	1326.2	1344.4	1225.2
2020		1323.2	1471.4	1069.4
2021		1148.0	1272.6	665.2
2022	814.0	979.0	1136.2	662.8
2023	1327.0	1481.4	1397.6	838.8
2024	999.2	1530.6	1516.6	1164.0
2025	158.4	170.6	173.2	106.6
All Time	9911.8	22510.2	9724.8	7468.2

Wettest Day
	Arnside		Heversham		Silverdale		Warton
Year	mm	When	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	20.0	15/09	42.8	05/08
2014	21.6	21/10	30.8	28/10
2015	85.8	05/12	85.0	05/12
2016	27.6	19/08	35.6	22/08
2017	52.4	05/06	63.6	22/11	75.8	22/11	93.0	22/11
2018	53.8	13/10	39.0	13/10	45.6	13/10	35.4	13/10
2019	73.4	27/09	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			57.6	27/10	52.8	27/10	35.6	04/07
2022	35.4	20/08	39.4	17/12	40.6	17/12	24.2	16/05
2023	36.6	18/06	35.4	10/01	33.2	23/07	23.0	14/08
2024	45.6	16/10	46.8	31/12	49.8	16/10	137.4	22/01
2025	19.4	13/01	23.6	13/01	18.0	05/01	14.6	01/01
All Time	85.8	2015	85.0	2015	75.8	2017	137.4	2024

High Rain Rate
	Arnside		Heversham		Silverdale		Warton
Year	mm/Hr	When	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	886.2	21/08	205.8	04/08
2014	109.8	10/06	1645.8	28/10
2015	164.6	01/09	185.8	01/06
2016	338.8	09/07	155.6	11/06
2017	250.4	17/12	1440.0	16/10	108.6	13/10	288.0	19/07
2018	108.6	29/11	84.0	20/09	192.0	29/11	138.8	24/01
2019	281.0	09/08	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			1440.0	19/10	128.0	04/07	151.6	04/07
2022	1280.0	12/12	1280.0	12/12	123.8	20/08	108.6	16/05
2023	140.4	21/08	90.0	10/09	153.6	26/08	640.0	21/08
2024	185.8	20/07	1645.8	17/01	88.6	03/07	1645.8	21/01
2025	104.8	03/01	26.8	04/02	90.8	04/02	20.2	24/02
All Time	1280.0	2022	1645.8	2011	202.2	2020	1645.8	2024

Days Rained Measurably
	Arnside	Heversham	Silverdale	Warton
Year	Days	Days	Days	Days
2006		131
2007		223
2008		244
2009		144
2010		205
2011		247
2012		244
2013	81	201
2014	238	200
2015	247	238
2016	213	209
2017	233	257	66	136
2018	219	221	215	195
2019	248	239	244	218
2020		225	235	202
2021		209	220	176
2022	133	211	229	206
2023	206	231	245	203
2024	172	242	251	229
2025	37	39	44	39
All Time	2027	4160	1749	1604

Days Rain ≥ 2 mm
	Arnside	Heversham	Silverdale	Warton
Year	Days	Days	Days	Days
2006		86
2007		125
2008		141
2009		74
2010		95
2011		162
2012		157
2013	54	133
2014	120	127
2015	132	145
2016	108	130
2017	115	141	39	91
2018	125	128	123	101
2019	157	144	151	137
2020		145	150	133
2021		112	114	73
2022	79	125	131	100
2023	135	151	147	116
2024	105	153	150	128
2025	20	20	22	16
All Time	1150	2494	1027	895

Days Rain ≥ 20 mm
	Arnside	Heversham	Silverdale	Warton
Year	Days	Days	Days	Days
2006		10
2007		9
2008		13
2009		7
2010		9
2011		8
2012		15
2013	1	9
2014	2	4
2015	7	13
2016	2	7
2017	4	7	2	8
2018	6	5	3	4
2019	17	9	9	9
2020		11	16	8
2021		11	16	7
2022	8	5	6	1
2023	12	16	13	2
2024	12	13	14	7
2025	0	2	0	0
All Time	71	183	79	46

Mean UV Index
	Arnside	Heversham	Warton
Year	Index	Index	Index
2006		0.7
2007		0.5
2008		0.2
2009		0.1
2010		0.1
2011		0.1
2012		0.2
2013	0.2	0.4
2014	0.3	0.3
2015	0.3	0.4
2016	0.3	0.3
2017	0.4	0.3	0.5
2018	0.2	0.3	0.3
2019		0.3	0.4
2020		0.2	0.4
2021		0.2	0.4
2022	0.3	0.2	0.4
2023	0.3	0.2	0.3
2024	0.2	0.2	0.3
2025	0.0	0.0	0.1
All Time	0.3	0.3	0.4

High UV Index
	Arnside		Heversham		Warton
Year	Index	When	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	5.5	28/08	8.7	22/06
2014	6.4	02/06	8.4	24/06
2015	5.8	29/06	7.1	25/05
2016	5.1	21/06	6.8	26/06
2017	4.7	17/06	5.6	24/06	7.0	12/06
2018	4.5	18/06	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			4.8	26/06	6.6	24/06
2022	4.2	15/07	4.7	22/06	6.7	22/06
2023	5.3	24/06	4.7	24/06	5.7	09/08
2024	4.1	23/06	4.0	21/06	6.3	21/06
2025	1.5	15/03	1.5	15/03	2.6	15/03
All Time	6.4	2014	9.9	2006	7.0	2017

Mean Solar Radiation
	Arnside	Heversham	Warton
Year	W/m2	W/m2	W/m2
2006		115
2007		107
2008		98
2009		56
2010		101
2011		102
2012		94
2013	42	102
2014	66	89
2015	73	98
2016	89	108
2017	114	97	107
2018	74	107	84
2019		102	104
2020		103	113
2021		106	108
2022	74	100	112
2023	82	103	98
2024	74	94	103
2025	34	46	51
All Time	78	99	102

High Solar Radiation
	Arnside		Heversham		Warton
Year	W/m2	When	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	1150	28/08	1259	17/05
2014	1241	21/05	1281	30/06
2015	1285	22/06	1308	25/05
2016	1260	18/05	1294	03/07
2017	1213	14/07	1238	14/07	1355	12/06
2018	1195	06/06	1179	16/05	1188	21/06
2019			1294	01/07	1267	02/07
2020			1299	01/07	1288	08/07
2021			1317	26/06	1290	24/06
2022	1102	05/08	1246	19/06	1352	13/06
2023	1181	01/05	1327	06/06	1274	01/06
2024	1137	17/06	1260	20/05	1310	01/06
2025	744	14/03	849	12/03	846	12/03
All Time	1285	2015	1747	2011	1355	2017

Evapo- transpiration
	Arnside	Heversham	Warton
Year	mm	mm	mm
2006		396.825
2007		576.972
2008		531.995
2009		371.218
2010		524.303
2011		522.235
2012		485.591
2013	121.306	543.152
2014	393.585	439.472
2015	334.905	533.529
2016	355.454	541.149
2017	374.660	513.143	315.695
2018	220.214	581.687	524.145
2019		525.088	630.193
2020		558.388	611.186
2021		577.819	476.763
2022	198.609	556.508	662.551
2023	519.378	565.810	482.318
2024	468.956	513.827	579.325
2025	49.472	50.683	61.114
All Time	3036.539	9909.394	4343.290

Average Wind
	Arnside	Heversham	Silverdale	Warton
Year	Mph	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	5.7	2.7
2014	4.3	2.8
2015	4.6	3.1
2016	3.8	2.1
2017	4.4	2.5	1.8	3.4
2018	2.0	2.4	2.2	3.7
2019	1.1	2.0	2.1	3.5
2020		2.7	2.1	4.3
2021		2.3	1.1	3.0
2022	4.0	2.7	1.0	3.3
2023	4.2	2.5	0.9	3.4
2024	4.3	2.7	1.3	3.2
2025	3.9	2.5	0.4	3.3
All Time	3.7	2.6	1.5	3.5

High Wind
	Arnside		Heversham		Silverdale		Warton
Year	Mph	When	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	61	27/12	48	05/12
2014	61	12/02	48	12/02
2015	54	29/11	44	14/01
2016	48	21/11	41	26/12
2017	56	16/10	49	11/01	34	17/10	60	20/10
2018	49	14/06	43	12/10	45	16/12	58	23/08
2019	34	09/02	40	09/02	42	09/02	47	12/03
2020			41	21/02	40	17/02	45	09/02
2021			59	14/02	30	11/03	108	06/08
2022	38	02/11	40	02/11	33	21/02	44	21/02
2023	46	11/04	46	11/04	47	13/11	62	11/04
2024	48	21/01	43	21/01	33	21/01	49	06/12
2025	53	24/01	41	24/01	38	24/01	50	21/02
All Time	61	2013	59	2021	47	2023	108	2021

Wind Run
	Arnside	Heversham	Silverdale	Warton
Year	Miles	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	18149.0	23719.0
2014	37644.5	19735.5
2015	40222.0	26844.0
2016	31881.5	17701.0
2017	35228.0	21991.0	3585.5	16749.5
2018	17347.5	20942.5	19251.5	32030.0
2019	9903.5	17178.0	18655.6	30775.0
2020		23226.5	18802.5	35319.5
2021		19575.0	9332.8	24994.5
2022	21765.0	22411.0	8584.5	28209.0
2023	36869.5	22074.5	7820.5	25089.5
2024	37274.5	23608.5	11205.0	27579.5
2025	7109.0	4640.5	740.5	6197.5
All Time	293394.0	419348.5	97978.4	226944.0

Dominant Wind Direction
	Arnside	Heversham	Silverdale	Warton
Year
2006	-	W	-	-
2007	-	W	-	-
2008	-	W	-	-
2009	-	W	-	-
2010	-	W	-	-
2011	-	W	-	-
2012	-	W	-	-
2013	SSE	W	-	-
2014	ESE	W	-	-
2015	ESE	W	-	-
2016	SSE	W	-	-
2017	W	W	WSW	W
2018	W	WSW	W	W
2019	W	W	W	W
2020	-	W	W	W
2021	-	W	W	W
2022	S	W	W	W
2023	S	W	W	W
2024	SSE	W	W	W
2025	SSE	E	W	NE
All Time	SSE	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.