RALPH 1 N, SD - COOP Northern Plains station 396907

396907 - RALPH 1 N, South Dakota

Latitude
45° 47´N

Longitude
103° 4´W

Elevation
850 meters

COOP Northern Plains

10 nearest COOP Northern Plains stations

12 mi	ENE :	LODGEPOLE 10 NW, SD
13 mi	ENE :	LODGEPOLE 10 NW, SD
13 mi	NNW :	HALEY, ND
14 mi	W :	LUDLOW 3 SSE, SD
16 mi	S :	REVA, SD
21 mi	NNW :	BOWMAN 11 SE, ND
21 mi	SE :	STROOL 2 N, SD
21 mi	ESE :	LODGEPOLE 9 S, SD
22 mi	SSW :	ANTELOPE RANGE STATION, SD
23 mi	NNE :	REEDER, ND

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

	Total observations	%	NDJFM observations	%
TMAX	17571	96.2%	7295	96.5%
TMIN	17455	95.6%	7255	95.9%
PRCP	17968	98.4%	7406	97.9%
SNOW	16011	87.7%	5661	74.9%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7295 by year	35.2°F	16.6°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>=59°F	487	0.37	97	36	2.7*	map	table
Extreme low events Days with TMAX<=7°F	489	-0.42	74	158	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>=59°F	487	0.39	114	31	3.7*	map	table
Extreme low events Days with TMAX<=7°F	489	-0.88	25	200	8.0*	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>=59°F	487	76	83	1.1	map	table
Extreme low events Days with TMAX<=7°F	489	41	86	2.1*	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	7255 by year	10.1°F	15.1°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	516	-0.31	72	141	2.0*	map	table
Extreme high events Days with TMIN>=29°F	588	0.41	128	39	3.3*	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<=-16°F	516	-0.79	35	197	5.6*	map	table
Extreme high events Days with TMIN>=29°F	588	0.33	124	56	2.2*	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<=-16°F	516	45	87	1.9*	map	table
Extreme high events Days with TMIN>=29°F	588	129	70	1.8*	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	7406 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"	949	0.10"	-0.08	148	169	1.1	map	table
Extreme events Days with PRCP>0.15"	186	0.28"	-0.03	24	27	1.1	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"	949	0.10"	-0.22	125	183	1.5*	map	table
Extreme events Days with PRCP>0.15"	186	0.28"	-0.30	15	34	2.3*	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"	949	0.10"	147	149	1.0	map	table
Extreme events Days with PRCP>0.15"	186	0.28"	33	30	1.1	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	5661 by year	0.13"		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"	413	1.83"	-0.10	68	84	1.2	map	table
Extreme events Days with SNOW>2.8"	81	4.54"	-0.08	12	12	1.0	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"	413	1.83"	-0.22	50	84	1.7*	map	table
Extreme events Days with SNOW>2.8"	81	4.54"	-0.37	7	16	2.3	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"	413	1.83"	70	44	1.6*	map	table
Extreme events Days with SNOW>2.8"	81	4.54"	9	10	1.1	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: