ST CHARLES, MO - COOP Northern Plains station 237397

237397 - ST CHARLES, Missouri

Latitude
38° 47´N

Longitude
90° 30´W

Elevation
142 meters

COOP Northern Plains

10 nearest COOP Northern Plains stations

4 mi	WNW :	ST LOUIS WSO, MO
7 mi	S :	ST CHARLES 7 SSW, MO
8 mi	ESE :	ST LOUIS LAMBERT INT'L ARPT, MO
11 mi	WSW :	WELDON SPRING, MO
14 mi	SE :	SAINT LOUIS WASHINGTON UNIV, MO
16 mi	S :	VALLEY PARK, MO
16 mi	SE :	ST LOUIS SCIENCE CTR, MO
17 mi	SSE :	WEBSTER GROVES, MO
18 mi	SE :	ST LOUIS ST LOUIS UNIV, MO
18 mi	NNW :	CAP AU GRIS L & D 25, MO

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

	Total observations	%	NDJFM observations	%
TMAX	17174	94.0%	7092	93.8%
TMIN	17386	95.2%	7076	93.6%
PRCP	17515	95.9%	7145	94.5%
SNOW	16714	91.5%	6327	83.7%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7092 by year	47.0°F	14.8°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>=70°F	509	0.29	92	46	2.0*	map	table
Extreme low events Days with TMAX<=25°F	491	-0.33	69	125	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>=70°F	509	-0.52	27	113	4.2*	map	table
Extreme low events Days with TMAX<=25°F	491	0.30	132	77	1.7*	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>=70°F	509	71	120	1.7*	map	table
Extreme low events Days with TMAX<=25°F	491	54	60	1.1	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	7076 by year	26.9°F	12.6°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<=6°F	491	-0.45	65	138	2.1*	map	table
Extreme high events Days with TMIN>=45°F	513	0.20	86	57	1.5*	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<=6°F	491	0.43	145	63	2.3*	map	table
Extreme high events Days with TMIN>=45°F	513	-0.62	12	111	9.2*	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<=6°F	491	38	51	1.3	map	table
Extreme high events Days with TMIN>=45°F	513	97	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	7145 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"	1937	0.33"	0.07	347	298	1.2	map	table
Extreme events Days with PRCP>0.50"	382	0.99"	0.12	65	54	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"	1937	0.33"	-0.21	254	387	1.5*	map	table
Extreme events Days with PRCP>0.50"	382	0.99"	-0.40	32	86	2.7*	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"	1937	0.33"	326	324	1.0	map	table
Extreme events Days with PRCP>0.50"	382	0.99"	67	64	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	6327 by year	0.09"		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"	267	2.18"	-0.19	46	59	1.3	map	table
Extreme events Days with SNOW>3.5"	50	5.64"	-0.29	9	13	1.4	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"	267	2.18"	0.13	57	43	1.3	map	table
Extreme events Days with SNOW>3.5"	50	5.64"	-0.12	4	8	2.0	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"	267	2.18"	23	45	2.0*	map	table
Extreme events Days with SNOW>3.5"	50	5.64"	2	6	3.0	map	table

SNOW under 2 index extremes Help

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