SEATTLE PORTAGE BAY, WA - COOP Northwest station 457458

457458 - SEATTLE PORTAGE BAY, Washington

Latitude
47° 39´N

Longitude
122° 18´W

Elevation
6 meters

10 nearest COOP Northwest stations

0 mi	E :	SEATTLE UNIV OF WASHINGT, WA
2 mi	NE :	SEATTLE NAS, WA
2 mi	NE :	SEATTLE SAND PT WSFO, WA
2 mi	NNW :	SEATTLE MAPLE LEAF R, WA
2 mi	SSW :	SEATTLE CITY OFFICE, WA
4 mi	NNW :	SEATTLE JACKSON PARK, WA
5 mi	S :	SEATTLE BOEING FIELD, WA
5 mi	NNE :	BOTHELL 2 N, WA
8 mi	S :	SEATTLE SEATTLE-TACOMA INTL A, WA
9 mi	WNW :	KEYPORT TORPEDO STN, WA

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

	Total observations	%	NDJFM observations	%
TMAX	9162	50.2%	3812	50.4%
TMIN	9162	50.2%	3812	50.4%
PRCP	9161	50.2%	3812	50.4%
SNOW	9162	50.2%	3812	50.4%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	3812 by year	50.0°F	6.6°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>=60°F	261	0.28	59	31	1.9*	map	table
Extreme low events Days with TMAX<=41°F	343	0.08	80	71	1.1	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>=60°F	261	1.09	122	3	40.7*	map	table
Extreme low events Days with TMAX<=41°F	343	-0.88	20	134	6.7*	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>=60°F	261	64	10	6.4*	map	table
Extreme low events Days with TMAX<=41°F	343	41	47	1.1	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	3812 by year	38.4°F	6.5°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<=29°F	310	0.38	85	51	1.7*	map	table
Extreme high events Days with TMIN>=47°F	326	0.36	63	19	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<=29°F	310	-0.68	20	104	5.2*	map	table
Extreme high events Days with TMIN>=47°F	326	0.78	115	11	10.5*	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<=29°F	310	46	41	1.1	map	table
Extreme high events Days with TMIN>=47°F	326	66	29	2.3*	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	3812 by year	0.16"		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"	2109	0.29"	0.31	495	225	2.2*	map	table
Extreme events Days with PRCP>0.47"	415	0.83"	0.41	102	26	3.9*	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"	2109	0.29"	0.04	363	318	1.1	map	table
Extreme events Days with PRCP>0.47"	415	0.83"	0.14	81	51	1.6*	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"	2109	0.29"	410	295	1.4*	map	table
Extreme events Days with PRCP>0.47"	415	0.83"	81	66	1.2	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	3812 by year	0.03"		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"	76	1.74"	0.16	20	15	1.3	map	table
Extreme events Days with SNOW>2.9"	15	4.91"	0.25	5	3	1.7	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"	76	1.74"	-1.49	0	43	Inf*	map	table
Extreme events Days with SNOW>2.9"	15	4.91"	-1.67	0	9	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"	76	1.74"	8	14	1.8	map	table
Extreme events Days with SNOW>2.9"	15	4.91"	1	2	2.0	map	table

SNOW under 2 index extremes Help

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