MANASSAS 3 NW, VA - COOP Mid-Atlantic station 445213

445213 - MANASSAS 3 NW, Virginia

Latitude
38° 47´N

Longitude
77° 30´W

Elevation
101 meters

COOP Mid-Atlantic

10 nearest COOP Mid-Atlantic stations

7 mi	SSE :	MANASSAS 4 S, VA
8 mi	NNE :	CHANTILLY, VA
9 mi	ENE :	MANION NR FAIRFAX, VA
10 mi	NE :	BACON NR FAIRFAX, VA
10 mi	ENE :	FAIRFAX, VA
11 mi	NNE :	WASHINGTON DC DULLES INT'L AR, VA
14 mi	N :	STERLING RCS, VA
14 mi	N :	STERLING, VA
14 mi	NNE :	HERNDON, VA
15 mi	ENE :	VIENNA, VA

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

	Total observations	%	NDJFM observations	%
TMAX	11016	60.3%	4373	57.8%
TMIN	10947	59.9%	4370	57.8%
PRCP	11449	62.7%	4577	60.5%
SNOW	11364	62.2%	4428	58.5%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	4373 by year	50.4°F	12.1°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>=70°F	296	0.16	36	23	1.6	map	table
Extreme low events Days with TMAX<=33°F	301	-0.55	36	91	2.5*	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>=70°F	296	-0.63	12	83	6.9*	map	table
Extreme low events Days with TMAX<=33°F	301	0.51	94	35	2.7*	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>=70°F	296	23	50	2.2*	map	table
Extreme low events Days with TMAX<=33°F	301	31	41	1.3	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	4370 by year	29.0°F	10.5°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<=12°F	300	-0.53	31	80	2.6*	map	table
Extreme high events Days with TMIN>=44°F	324	0.00	38	41	1.1	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<=12°F	300	0.51	90	35	2.6*	map	table
Extreme high events Days with TMIN>=44°F	324	-0.19	28	53	1.9*	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<=12°F	300	31	38	1.2	map	table
Extreme high events Days with TMIN>=44°F	324	43	54	1.3	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	4577 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"	997	0.40"	-0.20	122	199	1.6*	map	table
Extreme events Days with PRCP>0.65"	197	1.06"	-0.22	22	41	1.9*	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"	997	0.40"	-0.04	158	182	1.2	map	table
Extreme events Days with PRCP>0.65"	197	1.06"	0.29	48	31	1.5	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"	997	0.40"	122	164	1.3*	map	table
Extreme events Days with PRCP>0.65"	197	1.06"	27	31	1.1	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	4428 by year	0.11"		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"	160	2.91"	-0.48	17	45	2.6*	map	table
Extreme events Days with SNOW>4.1"	32	7.31"	-0.28	1	6	6.0*	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"	160	2.91"	0.43	42	20	2.1*	map	table
Extreme events Days with SNOW>4.1"	32	7.31"	0.60	11	4	2.8	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"	160	2.91"	20	16	1.2	map	table
Extreme events Days with SNOW>4.1"	32	7.31"	6	3	2.0	map	table

SNOW under 2 index extremes Help

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