ROSS DAM, WA - COOP Northwest station 457185

457185 - ROSS DAM, Washington

Latitude
48° 44´N

Longitude
121° 3´W

Elevation
377 meters

10 nearest COOP Northwest stations

3 mi	WSW :	DIABLO DAM, WA
6 mi	WSW :	NEWHALEM, WA
6 mi	WSW :	SKAGIT POWER PLANT, WA
14 mi	SW :	MARBLEMOUNT RANGER STN, WA
18 mi	W :	UPPER BAKER DAM, WA
18 mi	WNW :	MOUNT BAKER LODGE, WA
19 mi	W :	UPPER BAKER RIVER, WA
19 mi	SW :	SAUK, WA
21 mi	WSW :	CONCRETE PPL FISH STN, WA
25 mi	SW :	DARRINGTON RANGER STN, WA

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

	Total observations	%	NDJFM observations	%
TMAX	13337	73.0%	5564	73.6%
TMIN	13471	73.8%	5592	73.9%
PRCP	13546	74.2%	5613	74.2%
SNOW	10949	60.0%	4012	53.0%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	5564 by year	41.9°F	7.7°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>=53°F	428	0.17	75	45	1.7*	map	table
Extreme low events Days with TMAX<=31°F	373	-0.10	68	91	1.3	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>=53°F	428	0.77	154	24	6.4*	map	table
Extreme low events Days with TMAX<=31°F	373	-1.11	8	171	21.4*	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>=53°F	428	103	22	4.7*	map	table
Extreme low events Days with TMAX<=31°F	373	65	36	1.8*	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	5592 by year	31.2°F	6.9°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<=20°F	418	-0.12	70	98	1.4	map	table
Extreme high events Days with TMIN>=39°F	454	0.12	47	40	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<=20°F	418	-1.18	5	197	39.4*	map	table
Extreme high events Days with TMIN>=39°F	454	0.65	130	11	11.8*	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<=20°F	418	65	56	1.2	map	table
Extreme high events Days with TMIN>=39°F	454	87	35	2.5*	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	5613 by year	0.26"		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"	3278	0.45"	0.12	577	444	1.3*	map	table
Extreme events Days with PRCP>0.73"	652	1.35"	0.26	132	72	1.8*	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"	3278	0.45"	-0.09	456	561	1.2*	map	table
Extreme events Days with PRCP>0.73"	652	1.35"	-0.07	94	106	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"	3278	0.45"	597	391	1.5*	map	table
Extreme events Days with PRCP>0.73"	652	1.35"	108	83	1.3	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	4012 by year	0.31"		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"	363	3.39"	0.12	72	56	1.3	map	table
Extreme events Days with SNOW>5.3"	72	9.26"	0.11	15	11	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"	363	3.39"	-0.84	13	129	9.9*	map	table
Extreme events Days with SNOW>5.3"	72	9.26"	-1.33	1	39	39.0*	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"	363	3.39"	44	67	1.5*	map	table
Extreme events Days with SNOW>5.3"	72	9.26"	5	13	2.6	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: