MUD MOUNTAIN DAM, WA - COOP Northwest station 455704

455704 - MUD MOUNTAIN DAM, Washington

Latitude
47° 9´N

Longitude
121° 56´W

Elevation
399 meters

10 nearest COOP Northwest stations

6 mi	S :	RAINIER CARBON RIVER ENT, WA
7 mi	NNE :	PALMER 3 ESE, WA
8 mi	E :	GREENWATER, WA
10 mi	N :	LANDSBURG, WA
12 mi	NNE :	CEDAR LAKE, WA
14 mi	ENE :	LESTER 2 E, WA
17 mi	N :	SNOQUALMIE FALLS, WA
17 mi	NE :	SNOQUALMIE PASS 4 W, WA
18 mi	ENE :	STAMPEDE PASS, WA
18 mi	ENE :	LAKE KEECHELUS, WA

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

	Total observations	%	NDJFM observations	%
TMAX	18209	99.7%	7530	99.6%
TMIN	18201	99.7%	7526	99.5%
PRCP	18075	99.0%	7437	98.3%
SNOW	17532	96.0%	6837	90.4%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7530 by year	46.8°F	8.0°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	537	0.13	99	65	1.5*	map	table
Extreme low events Days with TMAX<=35°F	538	-0.16	97	140	1.4*	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	537	1.11	247	4	61.8*	map	table
Extreme low events Days with TMAX<=35°F	538	-1.35	2	283	141.5*	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>=59°F	537	98	63	1.6*	map	table
Extreme low events Days with TMAX<=35°F	538	60	127	2.1*	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7526 by year	33.0°F	6.8°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<=23°F	550	-0.08	103	121	1.2	map	table
Extreme high events Days with TMIN>=42°F	656	0.05	85	74	1.1	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<=23°F	550	-1.16	9	252	28.0*	map	table
Extreme high events Days with TMIN>=42°F	656	0.94	258	8	32.2*	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<=23°F	550	56	122	2.2*	map	table
Extreme high events Days with TMIN>=42°F	656	125	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	7437 by year	0.21"		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"	4603	0.34"	0.02	751	725	1.0	map	table
Extreme events Days with PRCP>0.54"	915	0.96"	0.12	167	120	1.4*	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"	4603	0.34"	-0.13	629	832	1.3*	map	table
Extreme events Days with PRCP>0.54"	915	0.96"	-0.10	125	140	1.1	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"	4603	0.34"	708	840	1.2*	map	table
Extreme events Days with PRCP>0.54"	915	0.96"	120	172	1.4*	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	6837 by year	0.10"		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"	327	2.10"	-0.17	54	66	1.2	map	table
Extreme events Days with SNOW>3.5"	61	5.74"	-0.16	10	10	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"	327	2.10"	-1.34	4	170	42.5*	map	table
Extreme events Days with SNOW>3.5"	61	5.74"	-1.41	0	31	Inf*	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"	327	2.10"	66	60	1.1	map	table
Extreme events Days with SNOW>3.5"	61	5.74"	16	9	1.8	map	table

SNOW under 2 index extremes Help

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