UNION CENTER, SD - COOP Northern Plains station 398494

398494 - UNION CENTER, South Dakota

Latitude
44° 34´N

Longitude
102° 40´W

Elevation
906 meters

COOP Northern Plains

10 nearest COOP Northern Plains stations

11 mi	NNE :	RED OWL, SD
17 mi	SW :	HEREFORD, SD
20 mi	SSE :	ELM SPRINGS 3 ESE, SD
21 mi	NE :	MARCUS 8 NNW, SD
23 mi	E :	PLAINVIEW 4 SSW, SD
23 mi	N :	MAURINE 10 SW, SD
24 mi	WSW :	STURGIS 21 E, SD
26 mi	NNW :	SULPHUR 2 W, SD
29 mi	NNW :	MUD BUTTE 4 SSW, SD
31 mi	N :	MAURINE, SD

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

	Total observations	%	NDJFM observations	%
TMAX	8681	47.5%	3605	47.7%
TMIN	8673	47.5%	3601	47.6%
PRCP	8750	47.9%	3628	48.0%
SNOW	8755	47.9%	3623	47.9%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	3605 by year	37.1°F	15.6°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	266	0.08	35	22	1.6	map	table
Extreme low events Days with TMAX<=12°F	267	-0.82	32	115	3.6*	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	266	0.21	50	25	2.0*	map	table
Extreme low events Days with TMAX<=12°F	267	-0.77	19	94	4.9*	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	266	37	40	1.1	map	table
Extreme low events Days with TMAX<=12°F	267	57	44	1.3	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	3601 by year	13.8°F	13.4°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<=-9°F	255	-0.60	37	91	2.5*	map	table
Extreme high events Days with TMIN>=31°F	271	0.05	25	24	1.0	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<=-9°F	255	-0.86	13	102	7.8*	map	table
Extreme high events Days with TMIN>=31°F	271	0.35	60	19	3.2*	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<=-9°F	255	48	38	1.3	map	table
Extreme high events Days with TMIN>=31°F	271	48	49	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	3628 by year	0.01"		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"	381	0.11"	-0.38	37	90	2.4*	map	table
Extreme events Days with PRCP>0.14"	73	0.32"	-0.26	6	15	2.5	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"	381	0.11"	-0.22	42	64	1.5*	map	table
Extreme events Days with PRCP>0.14"	73	0.32"	-0.39	5	10	2.0	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"	381	0.11"	57	66	1.2	map	table
Extreme events Days with PRCP>0.14"	73	0.32"	13	8	1.6	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	3623 by year	0.14"		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"	297	1.65"	-0.48	25	78	3.1*	map	table
Extreme events Days with SNOW>2.0"	41	4.00"	-0.49	1	9	9.0*	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"	297	1.65"	-0.29	34	58	1.7*	map	table
Extreme events Days with SNOW>2.0"	41	4.00"	-0.49	3	8	2.7	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"	297	1.65"	45	53	1.2	map	table
Extreme events Days with SNOW>2.0"	41	4.00"	7	9	1.3	map	table

SNOW under 2 index extremes Help

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