SAN MATEO, CA - COOP Southwest station 047864

047864 - SAN MATEO, California

Latitude
37° 32´N

Longitude
122° 18´W

Elevation
6 meters

COOP Southwest

California

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10 nearest COOP Southwest stations

3 mi	NW :	BURLINGAME, CA
4 mi	SE :	REDWOOD CITY, CA
4 mi	NNW :	RICHMOND, CA
4 mi	SSE :	WOODSIDE FIRE STN 1, CA
5 mi	NW :	SAN FRANCISCO INT'L ARPT, CA
5 mi	WSW :	EL GRANADA, CA
6 mi	WSW :	HALF MOON BAY, CA
6 mi	SSE :	SEARSVILLE LAKE, CA
6 mi	SE :	PALO ALTO, CA
6 mi	WNW :	PACIFICA 4 SSE, CA

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

	Total observations	%	NDJFM observations	%
TMAX	10879	59.6%	4529	59.9%
TMIN	10848	59.4%	4516	59.7%
PRCP	11031	60.4%	4553	60.2%
SNOW	11061	60.6%	4583	60.6%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	4529 by year	61.4°F	6.5°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>=72°F	328	-0.00	42	38	1.1	map	table
Extreme low events Days with TMAX<=53°F	425	-0.03	74	77	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>=72°F	328	0.37	71	27	2.6*	map	table
Extreme low events Days with TMAX<=53°F	425	-0.96	22	186	8.5*	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>=72°F	328	17	80	4.7*	map	table
Extreme low events Days with TMAX<=53°F	425	56	113	2.0*	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	4516 by year	44.0°F	6.1°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<=35°F	362	0.14	70	53	1.3	map	table
Extreme high events Days with TMIN>=53°F	373	-0.28	44	78	1.8*	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<=35°F	362	-0.91	26	149	5.7*	map	table
Extreme high events Days with TMIN>=53°F	373	0.30	89	31	2.9*	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<=35°F	362	44	103	2.3*	map	table
Extreme high events Days with TMIN>=53°F	373	69	61	1.1	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	4553 by year	0.10"		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"	1380	0.34"	-0.24	176	304	1.7*	map	table
Extreme events Days with PRCP>0.59"	276	1.02"	-0.21	45	68	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"	1380	0.34"	-0.30	162	334	2.1*	map	table
Extreme events Days with PRCP>0.59"	276	1.02"	-0.40	31	78	2.5*	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"	1380	0.34"	230	320	1.4*	map	table
Extreme events Days with PRCP>0.59"	276	1.02"	53	64	1.2	map	table

PRCP under 2 index extremes Help

Station table

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SNOW Help top of page

SNOW	observations	mean
NDJFM	4583 by year	0.00"

No days with measureable SNOW during NDJFM over 1948-1997