AMHERST, MA - COOP Northeast station 190120

190120 - AMHERST, Massachusetts

Latitude
42° 23´N

Longitude
72° 32´W

Elevation
46 meters

10 nearest COOP Northeast stations

5 mi	N :	SUNDERLAND, MA
7 mi	E :	PELHAM 2, MA
7 mi	E :	PELHAM, MA
11 mi	ENE :	NEW SALEM, MA
12 mi	SE :	BELCHERTOWN, MA
13 mi	S :	CHICOPEE FALLS WESTO, MA
13 mi	E :	QUABBIN INTAKE, MA
13 mi	SSW :	HOLYOKE, MA
14 mi	N :	MONTAGUE CITY, MA
15 mi	ESE :	HARDWICK 3 WSW, MA

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

	Total observations	%	NDJFM observations	%
TMAX	18112	99.2%	7469	98.8%
TMIN	18140	99.3%	7484	99.0%
PRCP	18125	99.2%	7475	98.8%
SNOW	17744	97.2%	7237	95.7%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7469 by year	40.8°F	11.5°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>=59°F	526	0.38	111	31	3.6*	map	table
Extreme low events Days with TMAX<=24°F	542	-0.22	93	128	1.4	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>=59°F	526	-0.29	34	89	2.6*	map	table
Extreme low events Days with TMAX<=24°F	542	0.37	146	69	2.1*	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>=59°F	526	87	97	1.1	map	table
Extreme low events Days with TMAX<=24°F	542	61	86	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	7484 by year	20.9°F	12.8°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<=0°F	548	-0.05	103	101	1.0	map	table
Extreme high events Days with TMIN>=38°F	509	0.14	73	42	1.7*	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<=0°F	548	0.23	139	90	1.5*	map	table
Extreme high events Days with TMIN>=38°F	509	-0.14	38	66	1.7*	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<=0°F	548	54	68	1.3	map	table
Extreme high events Days with TMIN>=38°F	509	82	92	1.1	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	7475 by year	0.11"		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"	2513	0.33"	0.03	396	388	1.0	map	table
Extreme events Days with PRCP>0.55"	500	1.00"	0.01	81	73	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"	2513	0.33"	-0.07	399	464	1.2*	map	table
Extreme events Days with PRCP>0.55"	500	1.00"	0.18	94	54	1.7*	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"	2513	0.33"	388	440	1.1	map	table
Extreme events Days with PRCP>0.55"	500	1.00"	99	73	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	7237 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"	929	2.18"	-0.07	142	179	1.3	map	table
Extreme events Days with SNOW>3.3"	183	5.89"	-0.13	17	33	1.9*	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"	929	2.18"	0.02	170	177	1.0	map	table
Extreme events Days with SNOW>3.3"	183	5.89"	0.24	42	26	1.6	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"	929	2.18"	122	161	1.3*	map	table
Extreme events Days with SNOW>3.3"	183	5.89"	26	31	1.2	map	table

SNOW under 2 index extremes Help

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