PACTOLA DAM, SD - COOP Northern Plains station 396427

396427 - PACTOLA DAM, South Dakota

Latitude
44° 4´N

Longitude
103° 29´W

Elevation
1439 meters

COOP Northern Plains

10 nearest COOP Northern Plains stations

3 mi	ENE :	JOHNSON SIDING, SD
8 mi	W :	MYSTIC, SD
9 mi	WSW :	REDFERN, SD
10 mi	SSW :	HILL CITY, SD
11 mi	ENE :	RAPID CITY 4 NW, SD
12 mi	SSE :	KEYSTONE, SD
12 mi	WNW :	ROCHFORD, SD
13 mi	S :	MT RUSHMORE NATL MEM, SD
13 mi	E :	RAPID CITY WFO, SD
14 mi	WNW :	ROCHFORD 2WNW, SD

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

	Total observations	%	NDJFM observations	%
TMAX	14555	79.7%	5979	79.1%
TMIN	14599	79.9%	5998	79.3%
PRCP	15543	85.1%	6356	84.0%
SNOW	14827	81.2%	5946	78.6%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	5979 by year	39.6°F	14.0°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	433	0.20	74	41	1.8*	map	table
Extreme low events Days with TMAX<=17°F	417	-0.32	66	123	1.9*	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	433	0.23	81	41	2.0*	map	table
Extreme low events Days with TMAX<=17°F	417	-0.65	23	128	5.6*	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	433	69	54	1.3	map	table
Extreme low events Days with TMAX<=17°F	417	64	49	1.3	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	5998 by year	13.1°F	12.7°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	430	-0.30	62	119	1.9*	map	table
Extreme high events Days with TMIN>=29°F	440	0.18	70	52	1.3	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	430	-0.67	34	145	4.3*	map	table
Extreme high events Days with TMIN>=29°F	440	0.10	69	51	1.4	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	430	51	54	1.1	map	table
Extreme high events Days with TMIN>=29°F	440	78	65	1.2	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	6356 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"	1141	0.09"	-0.14	164	222	1.4*	map	table
Extreme events Days with PRCP>0.14"	209	0.29"	-0.05	28	33	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"	1141	0.09"	-0.16	163	207	1.3*	map	table
Extreme events Days with PRCP>0.14"	209	0.29"	-0.19	30	40	1.3	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"	1141	0.09"	191	140	1.4*	map	table
Extreme events Days with PRCP>0.14"	209	0.29"	44	32	1.4	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	5946 by year	0.20"		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"	615	1.92"	-0.10	92	120	1.3	map	table
Extreme events Days with SNOW>3.0"	80	5.71"	-0.06	12	17	1.4	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"	615	1.92"	-0.26	80	117	1.5*	map	table
Extreme events Days with SNOW>3.0"	80	5.71"	-0.31	10	17	1.7	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"	615	1.92"	96	98	1.0	map	table
Extreme events Days with SNOW>3.0"	80	5.71"	15	13	1.2	map	table

SNOW under 2 index extremes Help

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