BOSTON LOGAN INT'L ARPT, MA - COOP Northeast station 190770

190770 - BOSTON LOGAN INT'L ARPT, Massachusetts

Latitude
42° 22´N

Longitude
71° 1´W

Elevation
6 meters

10 nearest COOP Northeast stations

5 mi	WNW :	CAMBRIDGE, MA
7 mi	NNW :	SPOT POND, MA
7 mi	WSW :	CHESTNUT HILL, MA
7 mi	NNE :	WEST LYNN, MA
9 mi	NE :	SWAMPSCOTT, MA
9 mi	WNW :	ARLINGTON, MA
11 mi	SSE :	HINGHAM, MA
11 mi	WNW :	LEXINGTON, MA
11 mi	WSW :	NEWTON, MA
12 mi	SSW :	MILTON BLUE HILL OBSERVATORY, MA

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

	Total observations	%	NDJFM observations	%
TMAX	18258	100.0%	7558	99.9%
TMIN	18251	99.9%	7557	99.9%
PRCP	18200	99.7%	7558	99.9%
SNOW	17650	96.6%	7377	97.5%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7558 by year	42.5°F	11.2°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>=60°F	566	0.33	119	38	3.1*	map	table
Extreme low events Days with TMAX<=26°F	544	-0.12	103	118	1.1	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>=60°F	566	-0.34	35	105	3.0*	map	table
Extreme low events Days with TMAX<=26°F	544	0.33	142	75	1.9*	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>=60°F	566	96	106	1.1	map	table
Extreme low events Days with TMAX<=26°F	544	65	80	1.2	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	7557 by year	28.4°F	10.6°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<=11°F	526	-0.05	107	113	1.1	map	table
Extreme high events Days with TMIN>=43°F	581	0.15	90	51	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<=11°F	526	0.34	141	71	2.0*	map	table
Extreme high events Days with TMIN>=43°F	581	-0.17	47	89	1.9*	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<=11°F	526	63	70	1.1	map	table
Extreme high events Days with TMIN>=43°F	581	99	95	1.0	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	7558 by year	0.13"		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"	2857	0.35"	-0.00	446	468	1.0	map	table
Extreme events Days with PRCP>0.59"	563	1.11"	-0.04	82	96	1.2	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"	2857	0.35"	-0.02	485	500	1.0	map	table
Extreme events Days with PRCP>0.59"	563	1.11"	0.37	145	63	2.3*	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"	2857	0.35"	458	478	1.0	map	table
Extreme events Days with PRCP>0.59"	563	1.11"	108	88	1.2	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	7377 by year	0.28"		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"	1158	1.79"	-0.11	187	238	1.3*	map	table
Extreme events Days with SNOW>2.9"	226	5.83"	-0.03	34	42	1.2	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"	1158	1.79"	0.07	236	215	1.1	map	table
Extreme events Days with SNOW>2.9"	226	5.83"	0.26	55	37	1.5	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"	1158	1.79"	168	189	1.1	map	table
Extreme events Days with SNOW>2.9"	226	5.83"	25	31	1.2	map	table

SNOW under 2 index extremes Help

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