PORTHILL, ID - COOP Northwest station 107264

107264 - PORTHILL, Idaho

Latitude
49° 0´N

Longitude
116° 30´W

Elevation
541 meters

10 nearest COOP Northwest stations

40 mi	S :	BONNERS FERRY, ID
40 mi	S :	BONNERS FERRY, ID
49 mi	W :	BOUNDARY, WA
50 mi	SW :	BOUNDARY DAM, WA
50 mi	SW :	BOUNDARY DAM 1 W, WA
53 mi	SE :	TROY 18 N, MT
53 mi	SE :	YAAK, MT
53 mi	SW :	METALINE FALLS, WA
55 mi	S :	BENTON DAM, ID
55 mi	S :	PRIEST RIVER EXP STN, ID

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

	Total observations	%	NDJFM observations	%
TMAX	17879	97.9%	7402	97.9%
TMIN	17905	98.0%	7408	98.0%
PRCP	17960	98.3%	7416	98.1%
SNOW	17026	93.2%	6515	86.1%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7402 by year	38.4°F	10.1°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>=52°F	557	0.27	122	69	1.8*	map	table
Extreme low events Days with TMAX<=22°F	533	-0.07	101	120	1.2	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>=52°F	557	0.56	137	26	5.3*	map	table
Extreme low events Days with TMAX<=22°F	533	-1.06	14	250	17.9*	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>=52°F	557	107	57	1.9*	map	table
Extreme low events Days with TMAX<=22°F	533	54	102	1.9*	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	7408 by year	22.0°F	11.0°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<=2°F	494	-0.07	103	118	1.1	map	table
Extreme high events Days with TMIN>=35°F	498	0.12	76	59	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<=2°F	494	-1.07	12	225	18.8*	map	table
Extreme high events Days with TMIN>=35°F	498	0.43	119	27	4.4*	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<=2°F	494	43	101	2.3*	map	table
Extreme high events Days with TMIN>=35°F	498	85	97	1.1	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	7416 by year	0.07"		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"	2742	0.19"	0.03	462	423	1.1	map	table
Extreme events Days with PRCP>0.30"	528	0.51"	0.07	97	74	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"	2742	0.19"	-0.18	368	541	1.5*	map	table
Extreme events Days with PRCP>0.30"	528	0.51"	-0.26	53	105	2.0*	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"	2742	0.19"	452	498	1.1	map	table
Extreme events Days with PRCP>0.30"	528	0.51"	81	97	1.2	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	6515 by year	0.36"		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"	862	2.74"	-0.05	149	160	1.1	map	table
Extreme events Days with SNOW>4.0"	142	7.33"	-0.08	22	22	1.0	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"	862	2.74"	-0.64	63	274	4.3*	map	table
Extreme events Days with SNOW>4.0"	142	7.33"	-0.84	6	54	9.0*	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"	862	2.74"	129	211	1.6*	map	table
Extreme events Days with SNOW>4.0"	142	7.33"	19	36	1.9	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: