ILIAMNA ARPT, AK - COOP Alaska station 503905

503905 - ILIAMNA ARPT, Alaska

Latitude
59° 45´N

Longitude
154° 55´W

Elevation
57 meters

Alaska

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10 nearest COOP Alaska stations

12 mi	SE :	INTRICATE BAY, AK
14 mi	S :	KOKHANOK BAY, AK
48 mi	NNE :	PORT ALSWORTH, AK
48 mi	NNE :	TANALIAN POINT, AK
49 mi	E :	INISKIN, AK
75 mi	E :	SARGENT CREEK, AK
76 mi	E :	SILVER SALMON CREEK, AK
84 mi	SSW :	BROOKS RIVER, AK
84 mi	SSW :	BROOKS LAKE, AK
87 mi	ENE :	CHISIK ISLAND, AK

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

	Total observations	%	NDJFM observations	%
TMAX	16732	91.6%	6902	91.3%
TMIN	16725	91.6%	6898	91.2%
PRCP	16998	93.1%	7011	92.7%
SNOW	17130	93.8%	7025	92.9%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6902 by year	25.7°F	15.0°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>=42°F	493	-0.48	42	118	2.8*	map	table
Extreme low events Days with TMAX<=-2°F	509	-0.10	87	113	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>=42°F	493	0.77	178	25	7.1*	map	table
Extreme low events Days with TMAX<=-2°F	509	-0.24	50	87	1.7*	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>=42°F	493	88	35	2.5*	map	table
Extreme low events Days with TMAX<=-2°F	509	77	111	1.4*	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	6898 by year	12.7°F	16.9°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<=-16°F	477	-0.06	90	104	1.2	map	table
Extreme high events Days with TMIN>=35°F	467	-0.36	51	106	2.1*	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<=-16°F	477	-0.27	42	84	2.0*	map	table
Extreme high events Days with TMIN>=35°F	467	0.78	151	23	6.6*	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	477	66	127	1.9*	map	table
Extreme high events Days with TMIN>=35°F	467	77	28	2.8*	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	7011 by year	0.05"		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"	2278	0.15"	0.03	404	357	1.1	map	table
Extreme events Days with PRCP>0.22"	454	0.46"	0.11	91	72	1.3	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"	2278	0.15"	0.08	454	392	1.2*	map	table
Extreme events Days with PRCP>0.22"	454	0.46"	-0.11	81	96	1.2	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"	2278	0.15"	331	298	1.1	map	table
Extreme events Days with PRCP>0.22"	454	0.46"	68	58	1.2	map	table

PRCP under 2 index extremes Help

Station table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	7025 by year	0.35"		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"	1603	1.55"	0.10	314	245	1.3*	map	table
Extreme events Days with SNOW>2.3"	313	4.36"	0.09	66	48	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"	1603	1.55"	-0.09	261	324	1.2*	map	table
Extreme events Days with SNOW>2.3"	313	4.36"	-0.30	47	84	1.8*	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"	1603	1.55"	224	256	1.1	map	table
Extreme events Days with SNOW>2.3"	313	4.36"	47	61	1.3	map	table

SNOW under 2 index extremes Help

Station table

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