KETCHIKAN INTL AP, AK - COOP Alaska station 504590

504590 - KETCHIKAN INTL AP, Alaska

Latitude
55° 22´N

Longitude
131° 43´W

Elevation
23 meters

Alaska

Help

Main

10 nearest COOP Alaska stations

5 mi	NW :	GUARD ISLAND, AK
6 mi	E :	BEAVER FALLS, AK
14 mi	SSE :	ANNETTE ISLAND AP, AK
14 mi	N :	TRAITORS COVE, AK
23 mi	N :	BELL ISLAND, AK
38 mi	E :	SMEATON BAY, AK
38 mi	W :	HOLLIS, AK
58 mi	NNE :	UNUK RIVER, AK
62 mi	SE :	TREE POINT LIGHT STN, AK
65 mi	W :	KLAWOCK, AK

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

	Total observations	%	NDJFM observations	%
TMAX	15793	86.5%	6429	85.0%
TMIN	15805	86.5%	6432	85.0%
PRCP	15848	86.8%	6448	85.3%
SNOW	12513	68.5%	4553	60.2%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6429 by year	42.2°F	6.9°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>=51°F	504	-0.16	46	70	1.5*	map	table
Extreme low events Days with TMAX<=31°F	441	-0.45	30	111	3.7*	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>=51°F	504	1.17	235	12	19.6*	map	table
Extreme low events Days with TMAX<=31°F	441	-1.39	1	238	238.0*	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>=51°F	504	89	77	1.2	map	table
Extreme low events Days with TMAX<=31°F	441	44	115	2.6*	map	table

TMAX under 2 index extremes Help

Station table

Maps - choose one extreme:

TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6432 by year	31.5°F	8.0°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<=17°F	456	-0.46	35	113	3.2*	map	table
Extreme high events Days with TMIN>=41°F	542	-0.10	53	68	1.3	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<=17°F	456	-1.36	3	242	80.7*	map	table
Extreme high events Days with TMIN>=41°F	542	1.24	269	4	67.2*	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<=17°F	456	48	134	2.8*	map	table
Extreme high events Days with TMIN>=41°F	542	104	73	1.4*	map	table

TMIN under 2 index extremes Help

Station table

Maps - choose one extreme:

PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	6448 by year	0.46"		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"	4407	0.67"	0.03	715	677	1.1	map	table
Extreme events Days with PRCP>1.11"	877	1.93"	-0.02	132	136	1.0	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"	4407	0.67"	0.17	817	535	1.5*	map	table
Extreme events Days with PRCP>1.11"	877	1.93"	0.62	233	40	5.8*	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"	4407	0.67"	765	776	1.0	map	table
Extreme events Days with PRCP>1.11"	877	1.93"	133	155	1.2	map	table

PRCP under 2 index extremes Help

Station table

Maps - choose one extreme:

SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	4553 by year	0.24"		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"	428	2.51"	-0.08	65	74	1.1	map	table
Extreme events Days with SNOW>4.0"	53	7.16"	-0.39	5	12	2.4	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"	428	2.51"	-0.97	3	158	52.7*	map	table
Extreme events Days with SNOW>4.0"	53	7.16"	-0.99	0	19	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"	428	2.51"	48	134	2.8*	map	table
Extreme events Days with SNOW>4.0"	53	7.16"	7	19	2.7	map	table

SNOW under 2 index extremes Help

Station table

Maps - choose one extreme: