CHESTER 2, MA - COOP Northeast station 191430

191430 - CHESTER 2, Massachusetts

Latitude
42° 18´N

Longitude
72° 59´W

Elevation
195 meters

10 nearest COOP Northeast stations

1 mi	S :	CHESTER, MA
6 mi	E :	KNIGHTVILLE DAM, MA
7 mi	NNE :	WORTHINGTON, MA
7 mi	W :	BECKET 2 SW, MA
9 mi	NE :	CHESTERFIELD, MA
9 mi	WNW :	WASHINGTON, MA
9 mi	NNW :	PERU, MA
10 mi	WNW :	WASHINGTON 2, MA
10 mi	NNW :	PERU 2, MA
12 mi	NNE :	CUMMINGTON HILL, MA

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

	Total observations	%	NDJFM observations	%
TMAX	6418	35.1%	2622	34.7%
TMIN	6420	35.2%	2592	34.3%
PRCP	8733	47.8%	3660	48.4%
SNOW	8670	47.5%	3626	47.9%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	2622 by year	39.5°F	14.8°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>=64°F	175	0.61	50	6	8.3*	map	table
Extreme low events Days with TMAX<=18°F	181	-0.56	17	53	3.1*	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>=64°F	175	-0.37	5	31	6.2*	map	table
Extreme low events Days with TMAX<=18°F	181	0.45	57	23	2.5*	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>=64°F	175	33	41	1.2	map	table
Extreme low events Days with TMAX<=18°F	181	17	33	1.9*	map	table

TMAX under 2 index extremes Help

Maps - choose one extreme:

TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	2592 by year	15.9°F	15.8°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<=-10°F	214	-0.26	28	46	1.6	map	table
Extreme high events Days with TMIN>=36°F	195	0.34	36	12	3.0*	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<=-10°F	214	0.29	54	32	1.7	map	table
Extreme high events Days with TMIN>=36°F	195	-0.18	17	36	2.1*	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<=-10°F	214	19	38	2.0*	map	table
Extreme high events Days with TMIN>=36°F	195	40	38	1.1	map	table

TMIN under 2 index extremes Help

Maps - choose one extreme:

PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	3660 by year	0.15"		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"	1223	0.46"	-0.09	163	201	1.2*	map	table
Extreme events Days with PRCP>0.75"	242	1.40"	-0.06	37	38	1.0	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"	1223	0.46"	-0.05	207	227	1.1	map	table
Extreme events Days with PRCP>0.75"	242	1.40"	0.31	56	30	1.9*	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"	1223	0.46"	228	195	1.2	map	table
Extreme events Days with PRCP>0.75"	242	1.40"	55	29	1.9*	map	table

PRCP under 2 index extremes Help

Maps - choose one extreme:

SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	3626 by year	0.52"		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"	625	3.04"	-0.22	71	125	1.8*	map	table
Extreme events Days with SNOW>4.5"	124	8.51"	-0.18	10	28	2.8*	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"	625	3.04"	0.09	130	108	1.2	map	table
Extreme events Days with SNOW>4.5"	124	8.51"	0.31	31	19	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"	625	3.04"	109	99	1.1	map	table
Extreme events Days with SNOW>4.5"	124	8.51"	24	17	1.4	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: