CHARLOTTE HALL, MD - COOP Mid-Atlantic station 181685

181685 - CHARLOTTE HALL, Maryland

Latitude
38° 28´N

Longitude
76° 45´W

Elevation
52 meters

COOP Mid-Atlantic

10 nearest COOP Mid-Atlantic stations

1 mi	W :	CHARLOTTE HALL 2 SE, MD
4 mi	ESE :	MECHANICSVILLE 5 NE, MD
11 mi	ENE :	PRINCE FREDERICK 1 N, MD
11 mi	SSE :	LEONARDTOWN 3 NW, MD
13 mi	NE :	HUNTINGTOWN, MD
13 mi	SSE :	LEONARDTOWN 2, MD
14 mi	WNW :	LA PLATA 1 W, MD
15 mi	NNW :	WALDORF POLICE BARRACK, MD
16 mi	NNE :	OWINGS FERRY LANDING, MD
16 mi	SSE :	LEONARDTOWN 4 SSW, MD

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

	Total observations	%	NDJFM observations	%
TMAX	4506	24.7%	1926	25.5%
TMIN	4499	24.6%	1925	25.5%
PRCP	4541	24.9%	1915	25.3%
SNOW	4618	25.3%	1928	25.5%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	1926 by year	51.8°F	11.5°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>=69°F	159	-0.09	15	18	1.2	map	table
Extreme low events Days with TMAX<=35°F	157	-0.45	18	41	2.3*	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>=69°F	159	-0.58	5	35	7.0*	map	table
Extreme low events Days with TMAX<=35°F	157	0.45	46	17	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>=69°F	159	4	47	11.8*	map	table
Extreme low events Days with TMAX<=35°F	157	25	44	1.8	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	1925 by year	31.4°F	10.1°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<=16°F	137	-0.35	17	32	1.9	map	table
Extreme high events Days with TMIN>=47°F	139	-0.01	15	12	1.2	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<=16°F	137	0.45	38	14	2.7*	map	table
Extreme high events Days with TMIN>=47°F	139	-0.31	8	23	2.9*	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<=16°F	137	15	39	2.6*	map	table
Extreme high events Days with TMIN>=47°F	139	9	38	4.2*	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	1915 by year	0.11"		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"	589	0.36"	-0.21	78	130	1.7*	map	table
Extreme events Days with PRCP>0.64"	115	1.02"	-0.03	15	22	1.5	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"	589	0.36"	-0.14	91	116	1.3	map	table
Extreme events Days with PRCP>0.64"	115	1.02"	0.05	18	15	1.2	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"	589	0.36"	52	182	3.5*	map	table
Extreme events Days with PRCP>0.64"	115	1.02"	13	21	1.6	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	1928 by year	0.09"		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"	87	2.07"	-0.46	8	22	2.8*	map	table
Extreme events Days with SNOW>4.0"	9	6.94"	-0.10	1	2	2.0	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"	87	2.07"	0.37	22	10	2.2	map	table
Extreme events Days with SNOW>4.0"	9	6.94"	0.18	2	1	2.0	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"	87	2.07"	14	18	1.3	map	table
Extreme events Days with SNOW>4.0"	9	6.94"	1	1	1.0	map	table

SNOW under 2 index extremes Help

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