EUREKA, SD - COOP Northern Plains station 392797

392797 - EUREKA, South Dakota

Latitude
45° 47´N

Longitude
99° 38´W

Elevation
567 meters

COOP Northern Plains

10 nearest COOP Northern Plains stations

21 mi	NE :	ASHLEY, ND
23 mi	S :	BOWDLE, SD
25 mi	NW :	HAGUE, ND
27 mi	SSE :	ROSCOE, SD
27 mi	SW :	SELBY, SD
32 mi	WNW :	POLLOCK, SD
32 mi	N :	WISHEK, ND
34 mi	E :	LEOLA, SD
35 mi	WSW :	GLENHAM, SD
37 mi	SE :	IPSWICH, SD

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

	Total observations	%	NDJFM observations	%
TMAX	18231	99.8%	7549	99.8%
TMIN	18210	99.7%	7544	99.7%
PRCP	18250	99.9%	7550	99.8%
SNOW	17688	96.9%	7085	93.7%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7549 by year	29.6°F	16.2°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>=53°F	546	0.32	98	38	2.6*	map	table
Extreme low events Days with TMAX<=3°F	513	-0.37	76	157	2.1*	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>=53°F	546	0.18	100	51	2.0*	map	table
Extreme low events Days with TMAX<=3°F	513	-0.60	49	170	3.5*	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>=53°F	546	72	94	1.3	map	table
Extreme low events Days with TMAX<=3°F	513	52	80	1.5*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7544 by year	9.2°F	15.3°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<=-16°F	577	-0.34	80	152	1.9*	map	table
Extreme high events Days with TMIN>=29°F	605	0.29	108	52	2.1*	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<=-16°F	577	-0.50	70	192	2.7*	map	table
Extreme high events Days with TMIN>=29°F	605	0.13	95	57	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<=-16°F	577	48	95	2.0*	map	table
Extreme high events Days with TMIN>=29°F	605	130	98	1.3	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	7550 by year	0.02"		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"	1300	0.09"	-0.12	194	251	1.3*	map	table
Extreme events Days with PRCP>0.12"	255	0.31"	-0.06	38	44	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"	1300	0.09"	-0.25	154	269	1.7*	map	table
Extreme events Days with PRCP>0.12"	255	0.31"	-0.29	21	45	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"	1300	0.09"	191	230	1.2	map	table
Extreme events Days with PRCP>0.12"	255	0.31"	55	46	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	7085 by year	0.24"		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"	970	1.78"	-0.26	129	214	1.7*	map	table
Extreme events Days with SNOW>3.0"	149	5.23"	-0.19	15	27	1.8	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"	970	1.78"	-0.33	110	228	2.1*	map	table
Extreme events Days with SNOW>3.0"	149	5.23"	-0.44	12	39	3.2*	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"	970	1.78"	127	171	1.3*	map	table
Extreme events Days with SNOW>3.0"	149	5.23"	30	33	1.1	map	table

SNOW under 2 index extremes Help

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