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Harpers Ferry,West Virginia, USA

Updated: Wed, 10-Mar-2010 11:35pm EST

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Wind Reports

Report for Year 2010

Note: Wind data is updated after midnight each day. Wind values are displayed in mph.

Day	Jan			Feb			Mar			Apr			May			Jun			Jul			Aug			Sep			Oct			Nov			Dec
Day	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir	Avg	Hi	Dir
1	3.0	21.0	NW	1.0	12.7	SW	5.5	20.7	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
2	15.0	29.0	NW	0.7	12.7	SE	0.7	6.9	N	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
3	13.0	29.0	NW	0.7	11.5	W	3.4	16.1	NNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
4	8.0	20.0	WNW	1.5	12.7	N	7.4	21.9	NNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
5	8.0	22.0	NW	0.5	17.3	ENE	5.3	24.2	NNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
6	11.0	24.0	NW	2.4	15.0	N	4.1	16.1	NNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
7	5.0	18.0	NW	0.8	13.8	NW	1.4	11.5	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
8	6.0	23.0	NW	1.6	15.0	WNW	2.3	15.0	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
9	7.0	22.0	NW	0.6	9.2	SSE	0.4	6.9	SSE	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
10	6.0	17.0	NW	6.8	26.5	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
11	1.0	15.0	WSW	7.6	25.3	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
12	7.0	20.0	NW	2.7	17.3	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
13	2.0	14.0	WNW	5.0	19.6	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
14	1.0	10.0	WSW	4.1	19.6	WNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
15	2.0	20.0	SW	0.9	11.5	N	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
16	1.0	9.0	WSW	4.2	19.6	WNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
17	2.0	12.0	N	4.8	20.7	WNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
18	4.0	18.0	NW	7.9	26.5	WNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
19	1.0	11.0	NNE	6.9	25.3	WNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
20	2.0	14.0	NNW	1.7	16.1	WNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
21	1.0	12.0	SE	0.7	11.5	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
22	1.0	6.0	NNW	1.6	16.1	ESE	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
23	2.0	11.0	SSE	1.3	10.4	N	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
24	3.0	16.0	SSE	1.5	12.7	NNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
25	6.0	38.0	NW	8.1	31.1	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
26	7.0	20.0	WNW	10.0	34.5	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
27	4.0	18.0	WNW	3.2	17.3	WNW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
28	8.0	30.0	NW	4.7	23.0	NW	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
29	6.0	21.0	NNW				---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
30	2.0	10.0	N				---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
31	1.0	10.0	W				---	---	---				---	---	---				---	---	---	---	---	---				---	---	---				---	---	---
Month Avg	4.7	18.1	WSW	3.3	18.0	SW	3.4	15.5	W	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---
Month Highs	15.0	38.0	---	10.0	34.5	---	7.4	24.2	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---	---

WIND COLOR CODING CHART

Beaufort number	Description	Wind speed
Beaufort number	Description	km/h	mph	kts	m/s
0	Calm	< 1	< 1	< 1	< 0.3
1	Light air	1.1 – 5.5	1 – 3	1 – 2	0.3 – 1.5
2	Light breeze	5.6 – 11	4 – 7	3 – 6	1.6 – 3.4
3	Gentle breeze	12 – 19	8 – 12	7 – 10	3.4 – 5.4
4	Moderate breeze	20 – 28	13 – 17	11 – 15	5.5 – 7.9
5	Fresh breeze	29 – 38	18 – 24	16 – 20	8.0 – 10.7
6	Strong breeze	39 – 49	25 – 30	21 – 26	10.8 – 13.8
7	High wind, Moderate gale, Near gale	50 – 61	31 – 38	27 – 33	13.9 – 17.1
8	Gale, Fresh gale	62 – 74	39 – 46	34 – 40	17.2 – 20.7
9	Strong gale	75 – 88	47 – 54	41 – 47	20.8 – 24.4
10	Storm, Whole gale	89 – 102	55 – 63	48 – 55	24.5 – 28.4
11	Violent storm	103 – 117	64 – 72	56 – 63	28.5 – 32.6
12	Hurricane-force	> 118	> 73	> 64	> 32.7