ALPHARETTA 4 SSW, GA - COOP Southeast station 090219

090219 - ALPHARETTA 4 SSW, Georgia

Latitude
34° 0´N

Longitude
84° 18´W

Elevation
317 meters

10 nearest COOP Southeast stations

5 mi	SE :	NORCROSS, GA
8 mi	N :	FIELDS CROSS ROADS, GA
14 mi	NNE :	CUMMING 2 SW, GA
15 mi	NW :	WOODSTOCK, GA
16 mi	SW :	ATLANTA BOLTON, GA
17 mi	SSW :	DECATUR, GA
17 mi	NNE :	CUMMING 1 WNW, GA
17 mi	S :	ATLANTA KIRKWOOD, GA
18 mi	SSW :	ATLANTA WSO-CITY, GA
19 mi	WSW :	MABLETON 1 N, GA

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

	Total observations	%	NDJFM observations	%
TMAX	13451	73.7%	5546	73.3%
TMIN	13465	73.7%	5557	73.5%
PRCP	13482	73.8%	5527	73.1%
SNOW	13541	74.1%	5504	72.8%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	5546 by year	56.1°F	11.8°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>=73°F	427	0.40	91	31	2.9*	map	table
Extreme low events Days with TMAX<=38°F	417	-0.46	52	119	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>=73°F	427	-0.55	27	113	4.2*	map	table
Extreme low events Days with TMAX<=38°F	417	0.67	136	30	4.5*	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>=73°F	427	59	71	1.2	map	table
Extreme low events Days with TMAX<=38°F	417	79	25	3.2*	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	5557 by year	32.4°F	11.0°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<=17°F	425	-0.46	54	127	2.4*	map	table
Extreme high events Days with TMIN>=50°F	407	0.25	67	34	2.0*	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<=17°F	425	0.60	144	34	4.2*	map	table
Extreme high events Days with TMIN>=50°F	407	-0.56	29	100	3.4*	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<=17°F	425	69	30	2.3*	map	table
Extreme high events Days with TMIN>=50°F	407	98	51	1.9*	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	5527 by year	0.16"		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"	1864	0.48"	-0.02	301	308	1.0	map	table
Extreme events Days with PRCP>0.77"	372	1.43"	0.04	71	55	1.3	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"	1864	0.48"	-0.05	318	342	1.1	map	table
Extreme events Days with PRCP>0.77"	372	1.43"	-0.10	57	64	1.1	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"	1864	0.48"	387	217	1.8*	map	table
Extreme events Days with PRCP>0.77"	372	1.43"	85	32	2.7*	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	5504 by year	0.01"		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"	33	1.95"	-0.04	7	6	1.2	map	table
Extreme events Days with SNOW>3.1"	6	5.83"	1.42	4	0	Inf	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"	33	1.95"	1.48	19	0	Inf*	map	table
Extreme events Days with SNOW>3.1"	6	5.83"	2.14	4	0	Inf	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"	33	1.95"	8	3	2.7	map	table
Extreme events Days with SNOW>3.1"	6	5.83"	2	0	Inf	map	table

SNOW under 2 index extremes Help

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