PORT ALSWORTH, AK - COOP Alaska station 507570

507570 - PORT ALSWORTH, Alaska

Latitude
60° 12´N

Longitude
154° 18´W

Elevation
79 meters

Alaska

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10 nearest COOP Alaska stations

2 mi	WNW :	TANALIAN POINT, AK
48 mi	SSW :	ILIAMNA ARPT, AK
54 mi	S :	INTRICATE BAY, AK
59 mi	SE :	INISKIN, AK
61 mi	S :	KOKHANOK BAY, AK
63 mi	E :	CHISIK ISLAND, AK
71 mi	ESE :	SARGENT CREEK, AK
72 mi	ESE :	SILVER SALMON CREEK, AK
73 mi	ENE :	BIG RIVER LAKES, AK
76 mi	NNW :	SPARREVOHN, AK

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

	Total observations	%	NDJFM observations	%
TMAX	13521	74.0%	5596	74.0%
TMIN	13495	73.9%	5592	73.9%
PRCP	13477	73.8%	5544	73.3%
SNOW	11677	63.9%	4143	54.8%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	5596 by year	27.4°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>=46°F	389	-0.40	36	74	2.1*	map	table
Extreme low events Days with TMAX<=-4°F	376	-0.01	77	81	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>=46°F	389	0.81	142	26	5.5*	map	table
Extreme low events Days with TMAX<=-4°F	376	-0.18	33	66	2.0*	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>=46°F	389	50	37	1.4	map	table
Extreme low events Days with TMAX<=-4°F	376	77	69	1.1	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	5592 by year	8.9°F	20.1°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<=-25°F	389	0.03	74	63	1.2	map	table
Extreme high events Days with TMIN>=35°F	402	-0.30	42	77	1.8*	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<=-25°F	389	-0.38	22	84	3.8*	map	table
Extreme high events Days with TMIN>=35°F	402	1.01	167	14	11.9*	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<=-25°F	389	77	75	1.0	map	table
Extreme high events Days with TMIN>=35°F	402	88	18	4.9*	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	5544 by year	0.03"		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"	1371	0.12"	0.25	291	153	1.9*	map	table
Extreme events Days with PRCP>0.17"	269	0.34"	0.24	52	20	2.6*	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"	1371	0.12"	-0.02	242	244	1.0	map	table
Extreme events Days with PRCP>0.17"	269	0.34"	-0.38	35	73	2.1*	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"	1371	0.12"	242	116	2.1*	map	table
Extreme events Days with PRCP>0.17"	269	0.34"	29	25	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	4143 by year	0.42"		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"	823	2.13"	0.42	206	82	2.5*	map	table
Extreme events Days with SNOW>3.0"	112	6.46"	0.50	26	7	3.7*	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"	823	2.13"	-0.04	139	146	1.1	map	table
Extreme events Days with SNOW>3.0"	112	6.46"	-0.65	12	40	3.3*	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"	823	2.13"	151	65	2.3*	map	table
Extreme events Days with SNOW>3.0"	112	6.46"	15	9	1.7	map	table

SNOW under 2 index extremes Help

Station table

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