AMHERST, MA - HCND station 190120

190120 - AMHERST, Massachusetts

Latitude
42° 23´N

Longitude
72° 32´W

Elevation
150 feet

10 nearest HCND stations

41 mi	NNE :	KEENE, NH
43 mi	E :	CLINTON, MA
43 mi	SSE :	STORRS, CT
52 mi	SW :	FALLS VILLAGE, CT
58 mi	E :	FRAMINGHAM, MA
69 mi	WNW :	ALBANY WSFOAP, NY
69 mi	N :	CAVENDISH, VT
70 mi	E :	CHESTNUT HILL, MA
73 mi	ENE :	LAWRENCE, MA
73 mi	E :	BLUE HILL, MA

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

	Total observations	%	NDJFM observations	%
TMAX	18013	98.6%	7421	98.1%
TMIN	17981	98.5%	7412	98.0%
PRCP	15215	83.3%	6204	82.0%
SNOW	12033	65.9%	4865	64.3%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7421 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	524	0.38	111	31	3.6*	map	table
Extreme low events Days with TMAX<=24°F	539	-0.22	93	127	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	524	-0.29	34	88	2.6*	map	table
Extreme low events Days with TMAX<=24°F	539	0.38	146	66	2.2*	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	524	86	97	1.1	map	table
Extreme low events Days with TMAX<=24°F	539	61	85	1.4	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7412 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	540	-0.06	101	101	1.0	map	table
Extreme high events Days with TMIN>=38°F	502	0.14	72	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	540	0.23	138	90	1.5*	map	table
Extreme high events Days with TMIN>=38°F	502	-0.15	37	66	1.8*	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	540	53	68	1.3	map	table
Extreme high events Days with TMIN>=38°F	502	81	90	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	6204 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"	2509	0.33"	0.02	395	388	1.0	map	table
Extreme events Days with PRCP>0.55"	499	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"	2509	0.33"	-0.07	398	463	1.2*	map	table
Extreme events Days with PRCP>0.55"	499	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"	2509	0.33"	387	439	1.1	map	table
Extreme events Days with PRCP>0.55"	499	1.00"	98	73	1.3	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	4865 by year	0.42"		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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