MARTINSBURG EASTERN WV REG AP, WV - COOP Mid-Atlantic station 465707

465707 - MARTINSBURG EASTERN WV REG AP, West Virginia

Latitude
39° 24´N

Longitude
77° 59´W

Elevation
164 meters

COOP Mid-Atlantic

10 nearest COOP Mid-Atlantic stations

4 mi	WSW :	INWOOD, WV
5 mi	ESE :	KEARNEYSVILLE, WV
11 mi	SE :	CHARLES TOWN 1 SE, WV
13 mi	ESE :	HARPERS FERRY, WV
15 mi	ESE :	HARPERS FERRY NATL MONUMENT, WV
16 mi	NNE :	WILLIAMSPORT, MD
16 mi	ENE :	KEEDYSVILLE, MD
17 mi	SSW :	WINCHESTER 7 SE, VA
17 mi	S :	BERRYVILLE, VA
17 mi	SSW :	WINCHESTER WINC, VA

Weather variables Help
Click a weather variable name to jump down to those statistics.

	Total observations	%	NDJFM observations	%
TMAX	18260	100.0%	7562	100.0%
TMIN	18261	100.0%	7563	100.0%
PRCP	18261	100.0%	7563	100.0%
SNOW	18256	100.0%	7558	99.9%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7562 by year	46.6°F	12.5°F		overall	NAM	PNA	CTI

TMAX and NAM Help scatterplot	days by month	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Extreme high events Days with TMAX>=67°F	516	0.36	113	37	3.1*	map	table
Extreme low events Days with TMAX<=29°F	516	-0.35	70	126	1.8*	map	table

TMAX and PNA Help scatterplot	days by month	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Extreme high events Days with TMAX>=67°F	516	-0.63	18	129	7.2*	map	table
Extreme low events Days with TMAX<=29°F	516	0.56	170	56	3.0*	map	table

TMAX and CTI Help	days by month	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Extreme high events Days with TMAX>=67°F	516	71	103	1.5*	map	table
Extreme low events Days with TMAX<=29°F	516	56	60	1.1	map	table

TMAX under 2 index extremes Help

Maps - choose one extreme:

TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7563 by year	27.3°F	10.7°F		overall	NAM	PNA	CTI

TMIN and NAM Help scatterplot	days by month	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Extreme low events Days with TMIN<=11°F	555	-0.21	92	116	1.3	map	table
Extreme high events Days with TMIN>=43°F	533	0.32	100	38	2.6*	map	table

TMIN and PNA Help scatterplot	days by month	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Extreme low events Days with TMIN<=11°F	555	0.50	169	62	2.7*	map	table
Extreme high events Days with TMIN>=43°F	533	-0.40	38	120	3.2*	map	table

TMIN and CTI Help	days by month	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Extreme low events Days with TMIN<=11°F	555	64	57	1.1	map	table
Extreme high events Days with TMIN>=43°F	533	102	86	1.2	map	table

TMIN under 2 index extremes Help

Maps - choose one extreme:

PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	7563 by year	0.09"		overall	NAM	PNA	CTI

PRCP and NAM Help scatterplot	days by month	mean	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Observed events Days with PRCP>0.00"	2412	0.29"	0.04	402	383	1.0	map	table
Extreme events Days with PRCP>0.48"	471	0.88"	0.08	70	61	1.1	map	table

PRCP and PNA Help scatterplot	days by month	mean	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Observed events Days with PRCP>0.00"	2412	0.29"	-0.10	377	457	1.2*	map	table
Extreme events Days with PRCP>0.48"	471	0.88"	0.06	88	69	1.3	map	table

PRCP and CTI Help	days by month	mean	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Observed events Days with PRCP>0.00"	2412	0.29"	365	392	1.1	map	table
Extreme events Days with PRCP>0.48"	471	0.88"	77	63	1.2	map	table

PRCP under 2 index extremes Help

Maps - choose one extreme:

SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	7558 by year	0.18"		overall	NAM	PNA	CTI

SNOW and NAM Help scatterplot	days by month	mean	mean NAM index	extreme high NAM days	extreme low NAM days	ratio of extreme high:low NAM days
Observed events Days with SNOW>0.0"	505	2.63"	-0.19	75	113	1.5*	map	table
Extreme events Days with SNOW>4.0"	91	7.41"	-0.18	10	18	1.8	map	table

SNOW and PNA Help scatterplot	days by month	mean	mean PNA index	extreme high PNA days	extreme low PNA days	ratio of extreme high:low PNA days
Observed events Days with SNOW>0.0"	505	2.63"	0.32	128	70	1.8*	map	table
Extreme events Days with SNOW>4.0"	91	7.41"	0.34	24	10	2.4*	map	table

SNOW and CTI Help	days by month	mean	high CTI days (moderate to strong El Niño winters)	low CTI days (moderate to strong La Niña winters)	ratio of high:low CTI (El Niño:La Niña days)
Observed events Days with SNOW>0.0"	505	2.63"	59	59	1.0	map	table
Extreme events Days with SNOW>4.0"	91	7.41"	11	6	1.8	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: