CHAPEL HILL 2W, NC - HCND station 311677

311677 - CHAPEL HILL 2W, North Carolina

Latitude
35° 55´N

Longitude
79° 6´W

Elevation
500 feet

10 nearest HCND stations

45 mi	ENE :	LOUISBURG, NC
49 mi	NNW :	DANVILLE, VA
49 mi	NE :	HENDERSON 2NNW, NC
50 mi	ESE :	SMITHFIELD, NC
60 mi	SSE :	FAYETTEVILLE, NC
72 mi	WSW :	ALBEMARLE, NC
75 mi	ESE :	GOLDSBORO 4SE, NC
79 mi	WSW :	SALISBURY, NC
87 mi	E :	TARBORO 1S, NC
88 mi	NNW :	ROCKY MOUNT, VA

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

	Total observations	%	NDJFM observations	%
TMAX	17771	97.3%	7356	97.3%
TMIN	17571	96.2%	7274	96.2%
PRCP	14164	77.6%	5909	78.1%
SNOW	11812	64.7%	4716	62.4%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7356 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	555	0.28	95	42	2.3*	map	table
Extreme low events Days with TMAX<=37°F	523	-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	555	-0.55	31	152	4.9*	map	table
Extreme low events Days with TMAX<=37°F	523	0.57	167	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	555	68	111	1.6*	map	table
Extreme low events Days with TMAX<=37°F	523	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	7274 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	535	-0.26	90	133	1.5*	map	table
Extreme high events Days with TMIN>=50°F	518	0.22	83	46	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	535	0.58	175	48	3.6*	map	table
Extreme high events Days with TMIN>=50°F	518	-0.55	38	140	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	535	63	71	1.1	map	table
Extreme high events Days with TMIN>=50°F	518	78	106	1.4	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	5909 by year	0.15"		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"	2488	0.36"	0.05	439	406	1.1	map	table
Extreme events Days with PRCP>0.61"	491	1.11"	-0.04	83	85	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"	2488	0.36"	-0.00	432	438	1.0	map	table
Extreme events Days with PRCP>0.61"	491	1.11"	0.17	108	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"	2488	0.36"	406	384	1.1	map	table
Extreme events Days with PRCP>0.61"	491	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	4716 by year	0.05"		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"	111	2.20"	-0.14	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"	111	2.20"	0.78	39	6	6.5*	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"	111	2.20"	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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