CHATHAM, VA - COOP Mid-Atlantic station 441614

441614 - CHATHAM, Virginia

Latitude
36° 49´N

Longitude
79° 25´W

Elevation
195 meters

COOP Mid-Atlantic

10 nearest COOP Mid-Atlantic stations

2 mi	NNE :	CHATHAM SCS, VA
16 mi	S :	DANVILLE, VA
18 mi	SSE :	DANVILLE FAA AP, VA
22 mi	NNE :	ALTAVISTA, VA
23 mi	NNW :	HUDDLESTON 4 SW, VA
26 mi	WSW :	MARTINSVILLE FILTER PLANT, VA
27 mi	S :	YANCEYVILLE 2 NNE, NC
28 mi	E :	HALIFAX 1 N, VA
28 mi	SW :	SPRAY, NC
28 mi	ESE :	HALIFAX 2 SSE, VA

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

	Total observations	%	NDJFM observations	%
TMAX	18092	99.1%	7540	99.7%
TMIN	17505	95.8%	7259	96.0%
PRCP	18174	99.5%	7544	99.7%
SNOW	17743	97.2%	7107	94.0%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7540 by year	52.9°F	12.2°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>=71°F	580	0.31	104	45	2.3*	map	table
Extreme low events Days with TMAX<=35°F	588	-0.18	102	131	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>=71°F	580	-0.46	33	133	4.0*	map	table
Extreme low events Days with TMAX<=35°F	588	0.44	169	63	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>=71°F	580	94	110	1.2	map	table
Extreme low events Days with TMAX<=35°F	588	79	78	1.0	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7259 by year	28.6°F	10.7°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<=13°F	523	-0.00	105	100	1.1	map	table
Extreme high events Days with TMIN>=45°F	565	0.12	80	61	1.3	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<=13°F	523	0.44	149	56	2.7*	map	table
Extreme high events Days with TMIN>=45°F	565	-0.52	37	147	4.0*	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<=13°F	523	68	53	1.3	map	table
Extreme high events Days with TMIN>=45°F	565	105	94	1.1	map	table

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PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	7544 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"	2484	0.35"	0.05	443	405	1.1	map	table
Extreme events Days with PRCP>0.58"	490	1.05"	0.05	85	77	1.1	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"	2484	0.35"	-0.07	404	469	1.2*	map	table
Extreme events Days with PRCP>0.58"	490	1.05"	0.20	108	72	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"	2484	0.35"	386	413	1.1	map	table
Extreme events Days with PRCP>0.58"	490	1.05"	76	56	1.4	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	7107 by year	0.07"		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"	179	2.69"	-0.37	24	44	1.8*	map	table
Extreme events Days with SNOW>4.8"	35	7.22"	-0.44	5	9	1.8	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"	179	2.69"	0.53	46	11	4.2*	map	table
Extreme events Days with SNOW>4.8"	35	7.22"	1.02	14	2	7.0*	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"	179	2.69"	29	21	1.4	map	table
Extreme events Days with SNOW>4.8"	35	7.22"	10	5	2.0	map	table

SNOW under 2 index extremes Help

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