ALVA, WY - COOP Lower Rockies station 480206

480206 - ALVA, Wyoming

Latitude
44° 42´N

Longitude
104° 26´W

Elevation
1219 meters

COOP Lower Rockies

10 nearest COOP Lower Rockies stations

5 mi	SE :	ALVA 5 ESE, WY
8 mi	W :	HULETT, WY
13 mi	ESE :	ALADDIN, WY
15 mi	SSE :	BEULAH 8 WSW, WY
15 mi	SE :	ALADDIN 6 S, WY
16 mi	WSW :	DEVILS TOWER, WY
16 mi	WSW :	DEVILS TOWER 2, WY
19 mi	NE :	COLONY, WY
21 mi	S :	SUNDANCE, WY
26 mi	WSW :	OSHOTO 1 S, WY

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

	Total observations	%	NDJFM observations	%
TMAX	3512	19.2%	1417	18.7%
TMIN	3515	19.2%	1420	18.8%
PRCP	3508	19.2%	1418	18.7%
SNOW	3499	19.2%	1412	18.7%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	1417 by year	39.1°F	15.6°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>=60°F	100	0.50	21	6	3.5*	map	table
Extreme low events Days with TMAX<=12°F	95	0.49	27	15	1.8	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>=60°F	100	0.23	20	9	2.2	map	table
Extreme low events Days with TMAX<=12°F	95	-0.74	5	33	6.6*	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>=60°F	100	32	10	3.2*	map	table
Extreme low events Days with TMAX<=12°F	95	9	13	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	1420 by year	12.3°F	14.4°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<=-13°F	95	0.39	23	14	1.6	map	table
Extreme high events Days with TMIN>=30°F	112	0.72	37	3	12.3*	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<=-13°F	95	-0.66	9	36	4.0*	map	table
Extreme high events Days with TMIN>=30°F	112	0.09	19	15	1.3	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<=-13°F	95	7	6	1.2	map	table
Extreme high events Days with TMIN>=30°F	112	30	16	1.9	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	1418 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"	328	0.12"	0.39	84	37	2.3*	map	table
Extreme events Days with PRCP>0.17"	59	0.36"	0.17	15	10	1.5	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"	328	0.12"	-0.12	44	54	1.2	map	table
Extreme events Days with PRCP>0.17"	59	0.36"	0.17	9	5	1.8	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"	328	0.12"	65	32	2.0*	map	table
Extreme events Days with PRCP>0.17"	59	0.36"	14	4	3.5*	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	1412 by year	0.32"		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"	196	2.27"	0.29	46	27	1.7	map	table
Extreme events Days with SNOW>3.0"	34	5.81"	0.18	9	5	1.8	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"	196	2.27"	-0.19	24	35	1.5	map	table
Extreme events Days with SNOW>3.0"	34	5.81"	-0.01	4	5	1.2	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"	196	2.27"	29	18	1.6	map	table
Extreme events Days with SNOW>3.0"	34	5.81"	5	4	1.2	map	table

SNOW under 2 index extremes Help

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