HETCH HETCHY, CA - COOP Southwest station 043939

043939 - HETCH HETCHY, California

Latitude
37° 57´N

Longitude
119° 47´W

Elevation
1180 meters

10 nearest COOP Southwest stations

3 mi	WNW :	LAKE ELEANOR, CA
4 mi	SW :	MATHER, CA
4 mi	W :	CHERRY VALLEY DAM, CA
7 mi	SSW :	CROCKER STN, CA
11 mi	SE :	YOSEMITE PARK HDQTRS, CA
17 mi	SSE :	WAWONA RANGER STATION, CA
18 mi	E :	ELLERY LAKE, CA
19 mi	SSE :	SOUTH ENTR YOSEMITE NP, CA
20 mi	SSW :	MARIPOSA R S, CA
20 mi	SSE :	FISH CAMP, CA

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

	Total observations	%	NDJFM observations	%
TMAX	17650	96.6%	7222	95.5%
TMIN	17670	96.8%	7221	95.5%
PRCP	17923	98.1%	7359	97.3%
SNOW	17355	95.0%	6822	90.2%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7222 by year	52.6°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>=68°F	557	0.06	67	68	1.0	map	table
Extreme low events Days with TMAX<=38°F	596	0.35	154	75	2.1*	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>=68°F	557	0.51	142	32	4.4*	map	table
Extreme low events Days with TMAX<=38°F	596	-1.02	25	260	10.4*	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>=68°F	557	50	98	2.0*	map	table
Extreme low events Days with TMAX<=38°F	596	91	122	1.3	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	7221 by year	31.1°F	6.2°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<=22°F	616	0.22	152	98	1.6*	map	table
Extreme high events Days with TMIN>=40°F	593	0.11	91	65	1.4*	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<=22°F	616	-1.17	12	287	23.9*	map	table
Extreme high events Days with TMIN>=40°F	593	0.51	144	28	5.1*	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<=22°F	616	66	145	2.2*	map	table
Extreme high events Days with TMIN>=40°F	593	80	90	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	7359 by year	0.18"		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"	2223	0.59"	-0.03	368	407	1.1	map	table
Extreme events Days with PRCP>1.00"	441	1.71"	-0.02	80	87	1.1	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"	2223	0.59"	-0.20	305	478	1.6*	map	table
Extreme events Days with PRCP>1.00"	441	1.71"	-0.31	57	103	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"	2223	0.59"	406	355	1.1	map	table
Extreme events Days with PRCP>1.00"	441	1.71"	75	72	1.0	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	6822 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"	608	3.91"	0.18	120	84	1.4*	map	table
Extreme events Days with SNOW>6.5"	120	9.70"	0.41	29	9	3.2*	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"	608	3.91"	-0.79	39	227	5.8*	map	table
Extreme events Days with SNOW>6.5"	120	9.70"	-1.23	3	64	21.3*	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"	608	3.91"	75	120	1.6*	map	table
Extreme events Days with SNOW>6.5"	120	9.70"	8	26	3.2*	map	table

SNOW under 2 index extremes Help

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