CAHOKIA, IL - COOP Midwest station 111160

111160 - CAHOKIA, Illinois

Latitude
38° 34´N

Longitude
90° 12´W

Elevation
122 meters

10 nearest COOP Midwest stations

1 mi	E :	EAST ST LOUIS PARKS COLLEGE, IL
14 mi	ENE :	COLLINSVILLE, IL
16 mi	S :	WATERLOO, IL
17 mi	N :	ALTON MELVIN PRICE L&D, IL
19 mi	E :	BELLEVILLE SCOTT AFB, IL
19 mi	E :	BELLEVILLE SIU RESEARCH, IL
20 mi	NNE :	EDWARDSVILLE 2 W, IL
22 mi	ESE :	MASCOUTAH, IL
25 mi	SE :	NEW ATHENS 5 SW, IL
25 mi	SE :	NEW ATHENS, IL

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

	Total observations	%	NDJFM observations	%
TMAX	9394	51.4%	3931	52.0%
TMIN	9246	50.6%	3852	50.9%
PRCP	9459	51.8%	3918	51.8%
SNOW	9169	50.2%	3576	47.3%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	3931 by year	47.6°F	14.7°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	308	0.50	74	11	6.7*	map	table
Extreme low events Days with TMAX<=26°F	279	-0.29	37	67	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	308	-0.36	30	68	2.3*	map	table
Extreme low events Days with TMAX<=26°F	279	0.34	78	42	1.9*	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	308	63	63	1.0	map	table
Extreme low events Days with TMAX<=26°F	279	24	31	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	3852 by year	27.5°F	12.5°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<=8°F	286	-0.32	43	71	1.7*	map	table
Extreme high events Days with TMIN>=45°F	287	0.62	77	13	5.9*	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<=8°F	286	0.38	88	42	2.1*	map	table
Extreme high events Days with TMIN>=45°F	287	-0.49	9	62	6.9*	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<=8°F	286	17	35	2.1*	map	table
Extreme high events Days with TMIN>=45°F	287	84	42	2.0*	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	3918 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"	1076	0.35"	0.27	232	136	1.7*	map	table
Extreme events Days with PRCP>0.56"	213	1.09"	0.26	41	21	2.0*	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"	1076	0.35"	-0.14	147	198	1.3*	map	table
Extreme events Days with PRCP>0.56"	213	1.09"	-0.47	13	47	3.6*	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"	1076	0.35"	206	129	1.6*	map	table
Extreme events Days with PRCP>0.56"	213	1.09"	36	25	1.4	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	3576 by year	0.11"		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"	191	2.12"	-0.18	31	44	1.4	map	table
Extreme events Days with SNOW>3.3"	38	5.56"	0.42	11	4	2.8	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"	191	2.12"	0.43	51	19	2.7*	map	table
Extreme events Days with SNOW>3.3"	38	5.56"	-0.25	5	7	1.4	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"	191	2.12"	29	22	1.3	map	table
Extreme events Days with SNOW>3.3"	38	5.56"	5	6	1.2	map	table

SNOW under 2 index extremes Help

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