TWITCHELL DAM, CA - COOP Southwest station 049111

049111 - TWITCHELL DAM, California

Latitude
34° 59´N

Longitude
120° 19´W

Elevation
177 meters

COOP Southwest

California

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10 nearest COOP Southwest stations

3 mi	SSW :	BETTERAVIA, CA
4 mi	WSW :	SANTA MARIA HANCOCK FIELD, CA
4 mi	WSW :	SANTA MARIA, CA
6 mi	WSW :	SANTA MARIA PUBLIC ARPT, CA
7 mi	S :	SAN ANTONIO SANTA MARI, CA
9 mi	ESE :	MANZANITA MOUNTAIN, CA
10 mi	SSW :	HARRIS GAGING STN, CA
10 mi	S :	LOS ALAMOS, CA
13 mi	SSW :	SURF 2 ENE, CA
15 mi	SSW :	LOMPOC, CA

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

	Total observations	%	NDJFM observations	%
TMAX	10811	59.2%	4543	60.1%
TMIN	10808	59.2%	4537	60.0%
PRCP	11311	61.9%	4742	62.7%
SNOW	11317	62.0%	4747	62.8%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	4543 by year	67.2°F	7.8°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>=80°F	322	0.29	66	26	2.5*	map	table
Extreme low events Days with TMAX<=56°F	341	0.00	67	67	1.0	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>=80°F	322	0.59	97	16	6.1*	map	table
Extreme low events Days with TMAX<=56°F	341	-0.79	28	126	4.5*	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>=80°F	322	46	38	1.2	map	table
Extreme low events Days with TMAX<=56°F	341	84	60	1.4	map	table

TMAX under 2 index extremes Help

Station table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	4537 by year	41.8°F	6.5°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<=32°F	367	0.07	76	63	1.2	map	table
Extreme high events Days with TMIN>=52°F	319	-0.01	49	57	1.2	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<=32°F	367	-0.64	35	124	3.5*	map	table
Extreme high events Days with TMIN>=52°F	319	0.42	79	28	2.8*	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<=32°F	367	72	52	1.4	map	table
Extreme high events Days with TMIN>=52°F	319	47	22	2.1*	map	table

TMIN under 2 index extremes Help

Station table

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PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	4742 by year	0.09"		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"	1022	0.42"	0.01	177	193	1.1	map	table
Extreme events Days with PRCP>0.72"	203	1.21"	0.06	41	37	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"	1022	0.42"	-0.14	166	223	1.3*	map	table
Extreme events Days with PRCP>0.72"	203	1.21"	-0.23	36	50	1.4	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"	1022	0.42"	229	103	2.2*	map	table
Extreme events Days with PRCP>0.72"	203	1.21"	52	19	2.7*	map	table

PRCP under 2 index extremes Help

Station table

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SNOW Help top of page

SNOW	observations	mean
NDJFM	4747 by year	0.00"

No days with measureable SNOW during NDJFM over 1948-1997