FALLS CHURCH 2 SW, VA - COOP Mid-Atlantic station 442922

442922 - FALLS CHURCH 2 SW, Virginia

Latitude
38° 51´N

Longitude
77° 12´W

Elevation
98 meters

COOP Mid-Atlantic

10 nearest COOP Mid-Atlantic stations

2 mi	S :	ANNANDALE, VA
2 mi	NNE :	GREENWAY DOWNS, VA
4 mi	NW :	VIENNA, VA
4 mi	E :	BAILEYS CROSSROADS, VA
5 mi	ENE :	WAVERLY HILLS, VA
5 mi	ENE :	BARCROFT, VA
6 mi	NE :	WALKERS CHAPEL, VA
6 mi	ESE :	EPISCOPAL HIGH SCHOOL, VA
6 mi	W :	FAIRFAX, VA
7 mi	ENE :	CLARENDON LYON PARK, VA

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

	Total observations	%	NDJFM observations	%
TMAX	7447	40.8%	3073	40.6%
TMIN	7382	40.4%	3069	40.6%
PRCP	7532	41.2%	3114	41.2%
SNOW	7548	41.3%	3117	41.2%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	3073 by year	48.7°F	11.9°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>=68°F	218	-0.06	20	28	1.4	map	table
Extreme low events Days with TMAX<=32°F	222	-0.66	24	69	2.9*	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>=68°F	218	-0.64	7	56	8.0*	map	table
Extreme low events Days with TMAX<=32°F	222	0.48	69	27	2.6*	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>=68°F	218	21	41	2.0*	map	table
Extreme low events Days with TMAX<=32°F	222	33	36	1.1	map	table

TMAX under 2 index extremes Help

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	3069 by year	28.8°F	10.3°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<=13°F	214	-0.52	25	62	2.5*	map	table
Extreme high events Days with TMIN>=44°F	225	-0.17	18	31	1.7*	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<=13°F	214	0.40	63	30	2.1*	map	table
Extreme high events Days with TMIN>=44°F	225	-0.32	19	48	2.5*	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<=13°F	214	27	22	1.2	map	table
Extreme high events Days with TMIN>=44°F	225	38	37	1.0	map	table

TMIN under 2 index extremes Help

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PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	3114 by year	0.10"		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"	895	0.35"	-0.36	95	222	2.3*	map	table
Extreme events Days with PRCP>0.61"	174	1.00"	-0.39	18	48	2.7*	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"	895	0.35"	-0.11	135	170	1.3	map	table
Extreme events Days with PRCP>0.61"	174	1.00"	0.27	40	24	1.7	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"	895	0.35"	126	165	1.3*	map	table
Extreme events Days with PRCP>0.61"	174	1.00"	24	19	1.3	map	table

PRCP under 2 index extremes Help

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	3117 by year	0.17"		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"	218	2.42"	-0.57	27	67	2.5*	map	table
Extreme events Days with SNOW>4.0"	40	6.94"	-0.52	2	10	5.0*	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"	218	2.42"	0.41	60	27	2.2*	map	table
Extreme events Days with SNOW>4.0"	40	6.94"	0.75	12	3	4.0	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"	218	2.42"	28	34	1.2	map	table
Extreme events Days with SNOW>4.0"	40	6.94"	10	0	Inf*	map	table

SNOW under 2 index extremes Help

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