ALTON, UT - COOP Lower Rockies station 420086

420086 - ALTON, Utah

Latitude
37° 26´N

Longitude
112° 29´W

Elevation
2146 meters

COOP Lower Rockies

10 nearest COOP Lower Rockies stations

14 mi	SW :	ORDERVILLE, UT
15 mi	N :	HATCH, UT
21 mi	NE :	BRYCE CANYON NAT'L PRK 1 S, UT
21 mi	NE :	BRYCE CNYN NAT'L PRK, UT
22 mi	NE :	BRYCE CANYON NATL PK HDQ, UT
23 mi	WNW :	CEDAR BREAKS STORAGE, UT
24 mi	WNW :	BLOWHARD MTN RADAR, UT
26 mi	ENE :	TROPIC, UT
26 mi	NE :	BRYCE CNYN FAA AP, UT
27 mi	N :	PANGUITCH, UT

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

	Total observations	%	NDJFM observations	%
TMAX	18097	99.1%	7492	99.1%
TMIN	18104	99.1%	7491	99.0%
PRCP	18181	99.6%	7489	99.0%
SNOW	17684	96.8%	7172	94.8%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7492 by year	44.7°F	10.4°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>=61°F	513	0.02	76	64	1.2	map	table
Extreme low events Days with TMAX<=30°F	643	0.14	138	98	1.4*	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>=61°F	513	0.48	116	20	5.8*	map	table
Extreme low events Days with TMAX<=30°F	643	-0.85	31	237	7.6*	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>=61°F	513	32	120	3.8*	map	table
Extreme low events Days with TMAX<=30°F	643	89	130	1.5*	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	7491 by year	18.5°F	8.9°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<=4°F	527	0.11	121	92	1.3	map	table
Extreme high events Days with TMIN>=30°F	663	0.02	97	106	1.1	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<=4°F	527	-0.88	27	205	7.6*	map	table
Extreme high events Days with TMIN>=30°F	663	0.25	137	66	2.1*	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<=4°F	527	79	105	1.3	map	table
Extreme high events Days with TMIN>=30°F	663	111	124	1.1	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	7489 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"	1339	0.31"	-0.01	242	250	1.0	map	table
Extreme events Days with PRCP>0.49"	260	0.84"	0.10	60	52	1.2	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"	1339	0.31"	-0.37	155	336	2.2*	map	table
Extreme events Days with PRCP>0.49"	260	0.84"	-0.56	26	79	3.0*	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"	1339	0.31"	288	159	1.8*	map	table
Extreme events Days with PRCP>0.49"	260	0.84"	60	37	1.6	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	7172 by year	0.51"		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"	878	4.13"	0.11	183	149	1.2	map	table
Extreme events Days with SNOW>6.2"	166	9.92"	0.36	42	25	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"	878	4.13"	-0.44	100	241	2.4*	map	table
Extreme events Days with SNOW>6.2"	166	9.92"	-0.79	13	61	4.7*	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"	878	4.13"	172	91	1.9*	map	table
Extreme events Days with SNOW>6.2"	166	9.92"	29	16	1.8	map	table

SNOW under 2 index extremes Help

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