ANGOSTURA DAM, SD - COOP Northern Plains station 390217

390217 - ANGOSTURA DAM, South Dakota

Latitude
43° 21´N

Longitude
103° 26´W

Elevation
958 meters

COOP Northern Plains

10 nearest COOP Northern Plains stations

6 mi	NNW :	HOT SPRINGS, SD
7 mi	WSW :	HOT SPRINGS 9 SW, SD
8 mi	SE :	SMITHWICK 6 SW, SD
9 mi	ENE :	ORAL, SD
10 mi	NW :	HOT SPRINGS 7 W, SD
12 mi	NNE :	BUFFALO GAP, SD
12 mi	SSE :	OELRICHS 8 W, SD
14 mi	N :	WIND CAVE, SD
15 mi	SE :	OELRICHS, SD
20 mi	SW :	RUMFORD, SD

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

	Total observations	%	NDJFM observations	%
TMAX	7382	40.4%	2955	39.1%
TMIN	7414	40.6%	2981	39.4%
PRCP	8450	46.3%	3502	46.3%
SNOW	8056	44.1%	3136	41.5%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	2955 by year	44.1°F	15.0°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>=65°F	215	-0.07	23	22	1.0	map	table
Extreme low events Days with TMAX<=20°F	222	-0.80	28	91	3.2*	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>=65°F	215	0.14	35	19	1.8*	map	table
Extreme low events Days with TMAX<=20°F	222	-0.54	22	66	3.0*	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>=65°F	215	26	49	1.9*	map	table
Extreme low events Days with TMAX<=20°F	222	40	40	1.0	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	2981 by year	17.3°F	13.0°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<=-5°F	213	-0.49	36	71	2.0*	map	table
Extreme high events Days with TMIN>=34°F	199	0.06	26	22	1.2	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<=-5°F	213	-0.91	13	93	7.2*	map	table
Extreme high events Days with TMIN>=34°F	199	0.08	30	20	1.5	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<=-5°F	213	26	57	2.2*	map	table
Extreme high events Days with TMIN>=34°F	199	20	36	1.8*	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	3502 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"	485	0.12"	-0.53	42	134	3.2*	map	table
Extreme events Days with PRCP>0.18"	94	0.34"	-0.36	7	19	2.7*	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"	485	0.12"	-0.40	48	107	2.2*	map	table
Extreme events Days with PRCP>0.18"	94	0.34"	-0.26	9	15	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"	485	0.12"	67	107	1.6*	map	table
Extreme events Days with PRCP>0.18"	94	0.34"	10	16	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	3136 by year	0.17"		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"	295	1.76"	-0.59	23	88	3.8*	map	table
Extreme events Days with SNOW>2.8"	59	4.38"	-0.55	5	17	3.4*	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"	295	1.76"	-0.50	20	68	3.4*	map	table
Extreme events Days with SNOW>2.8"	59	4.38"	-0.44	6	13	2.2	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"	295	1.76"	35	89	2.5*	map	table
Extreme events Days with SNOW>2.8"	59	4.38"	7	17	2.4	map	table

SNOW under 2 index extremes Help

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