CHATHAM WSMO, MA - COOP Northeast station 191386

191386 - CHATHAM WSMO, Massachusetts

Latitude
41° 40´N

Longitude
69° 58´W

Elevation
14 meters

10 nearest COOP Northeast stations

1 mi	E :	CHATHAM CG, MA
16 mi	N :	CAMP WELLFLEET, MA
16 mi	N :	SOUTH WELLFLEET, MA
17 mi	W :	HYANNIS, MA
26 mi	NNW :	NORTH TRURO, MA
28 mi	WNW :	SANDWICH, MA
29 mi	NNW :	PROVINCETOWN, MA
29 mi	S :	NANTUCKET MEMORIAL AP, MA
29 mi	W :	HATCHVILLE, MA
32 mi	NNW :	PROVINCETOWN 3 NW, MA

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

	Total observations	%	NDJFM observations	%
TMAX	8756	47.9%	3623	47.9%
TMIN	8758	48.0%	3624	47.9%
PRCP	8784	48.1%	3619	47.9%
SNOW	8786	48.1%	3620	47.9%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	3623 by year	42.4°F	8.9°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>=55°F	300	0.42	64	11	5.8*	map	table
Extreme low events Days with TMAX<=28°F	242	-0.12	45	55	1.2	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>=55°F	300	-0.25	27	47	1.7*	map	table
Extreme low events Days with TMAX<=28°F	242	0.64	81	19	4.3*	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>=55°F	300	54	51	1.1	map	table
Extreme low events Days with TMAX<=28°F	242	27	22	1.2	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	3624 by year	30.3°F	9.6°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<=15°F	269	-0.03	51	54	1.1	map	table
Extreme high events Days with TMIN>=44°F	257	0.43	49	7	7.0*	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<=15°F	269	0.56	90	24	3.8*	map	table
Extreme high events Days with TMIN>=44°F	257	-0.23	18	36	2.0*	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<=15°F	269	36	27	1.3	map	table
Extreme high events Days with TMIN>=44°F	257	63	29	2.2*	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	3619 by year	0.14"		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"	1433	0.34"	0.22	296	178	1.7*	map	table
Extreme events Days with PRCP>0.57"	283	1.03"	0.19	58	35	1.7*	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"	1433	0.34"	0.15	300	199	1.5*	map	table
Extreme events Days with PRCP>0.57"	283	1.03"	0.38	72	34	2.1*	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"	1433	0.34"	245	185	1.3*	map	table
Extreme events Days with PRCP>0.57"	283	1.03"	52	29	1.8*	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	3620 by year	0.20"		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"	314	2.31"	0.13	65	51	1.3	map	table
Extreme events Days with SNOW>3.5"	61	7.06"	0.35	14	7	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"	314	2.31"	0.35	82	36	2.3*	map	table
Extreme events Days with SNOW>3.5"	61	7.06"	0.57	20	7	2.9	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"	314	2.31"	57	46	1.2	map	table
Extreme events Days with SNOW>3.5"	61	7.06"	9	8	1.1	map	table

SNOW under 2 index extremes Help

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