CHAPEL HILL 2 W, NC - COOP Mid-Atlantic station 311677

311677 - CHAPEL HILL 2 W, North Carolina

Latitude
35° 55´N

Longitude
79° 5´W

Elevation
152 meters

COOP Mid-Atlantic

10 nearest COOP Mid-Atlantic stations

4 mi	E :	CHAPEL HILL 2 E, NC
11 mi	NE :	DURHAM, NC
17 mi	ESE :	RALEIGH RALEIGH-DURHAM ARPT, NC
18 mi	SE :	APEX, NC
20 mi	NW :	GRAHAM 2 ENE, NC
20 mi	NW :	HAW RIVER, NC
20 mi	NNE :	MANGUMS STORE 4 WSW, NC
21 mi	NE :	LAKE MICHIE, NC
22 mi	NE :	BUTNER FILTER PLANT, NC
23 mi	WNW :	BURLINGTON, NC

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

	Total observations	%	NDJFM observations	%
TMAX	17804	97.5%	7367	97.4%
TMIN	17732	97.1%	7363	97.4%
PRCP	17887	97.9%	7376	97.5%
SNOW	17597	96.4%	7083	93.7%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7367 by year	56.1°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>=74°F	556	0.27	95	43	2.2*	map	table
Extreme low events Days with TMAX<=37°F	524	-0.18	91	121	1.3	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>=74°F	556	-0.55	31	152	4.9*	map	table
Extreme low events Days with TMAX<=37°F	524	0.57	168	43	3.9*	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>=74°F	556	69	111	1.6*	map	table
Extreme low events Days with TMAX<=37°F	524	77	55	1.4*	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	7363 by year	32.2°F	10.9°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	540	-0.26	90	134	1.5*	map	table
Extreme high events Days with TMIN>=50°F	525	0.22	83	47	1.8*	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	540	0.59	176	48	3.7*	map	table
Extreme high events Days with TMIN>=50°F	525	-0.54	38	141	3.7*	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	540	63	71	1.1	map	table
Extreme high events Days with TMIN>=50°F	525	79	106	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	7376 by year	0.12"		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"	2492	0.36"	0.05	439	407	1.1	map	table
Extreme events Days with PRCP>0.61"	492	1.11"	-0.04	83	86	1.0	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"	2492	0.36"	-0.00	433	438	1.0	map	table
Extreme events Days with PRCP>0.61"	492	1.11"	0.17	109	73	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"	2492	0.36"	406	384	1.1	map	table
Extreme events Days with PRCP>0.61"	492	1.11"	81	57	1.4*	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	7083 by year	0.03"		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"	113	2.18"	-0.13	22	23	1.0	map	table
Extreme events Days with SNOW>3.5"	19	6.03"	-0.10	3	3	1.0	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"	113	2.18"	0.79	40	6	6.7*	map	table
Extreme events Days with SNOW>3.5"	19	6.03"	0.81	7	3	2.3	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"	113	2.18"	16	13	1.2	map	table
Extreme events Days with SNOW>3.5"	19	6.03"	4	3	1.3	map	table

SNOW under 2 index extremes Help

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