GRIGGSVILLE, IL - HCND station 113717

113717 - GRIGGSVILLE, Illinois

Latitude
39° 43´N

Longitude
90° 44´W

Elevation
700 feet

10 nearest HCND stations

27 mi	SE :	WHITE HALL 1E, IL
29 mi	E :	JACKSONVILLE 2E, IL
29 mi	NNE :	RUSHVILLE, IL
55 mi	ESE :	CARLINVILLE, IL
61 mi	NNW :	LA HARPE, IL
63 mi	WNW :	STEFFENVILLE, MO
66 mi	SSW :	WARRENTON 1N, MO
73 mi	WSW :	MEXICO, MO
77 mi	ENE :	LINCOLN, IL
77 mi	ESE :	HILLSBORO, IL

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

	Total observations	%	NDJFM observations	%
TMAX	15008	82.2%	6248	82.6%
TMIN	15032	82.3%	6240	82.5%
PRCP	12541	68.7%	5112	67.6%
SNOW	11942	65.4%	4797	63.4%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	6248 by year	43.5°F	14.6°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>=66°F	456	0.28	90	41	2.2*	map	table
Extreme low events Days with TMAX<=22°F	440	-0.47	56	124	2.2*	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>=66°F	456	-0.53	25	97	3.9*	map	table
Extreme low events Days with TMAX<=22°F	440	0.24	106	76	1.4	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>=66°F	456	42	125	3.0*	map	table
Extreme low events Days with TMAX<=22°F	440	43	66	1.5*	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	6240 by year	24.8°F	13.2°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<=3°F	463	-0.53	61	137	2.2*	map	table
Extreme high events Days with TMIN>=43°F	450	0.20	82	47	1.7*	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<=3°F	463	0.33	128	75	1.7*	map	table
Extreme high events Days with TMIN>=43°F	450	-0.49	17	86	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<=3°F	463	46	64	1.4	map	table
Extreme high events Days with TMIN>=43°F	450	63	86	1.4	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	5112 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"	1564	0.29"	-0.10	225	291	1.3*	map	table
Extreme events Days with PRCP>0.47"	301	0.90"	-0.11	42	53	1.3	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"	1564	0.29"	-0.21	215	313	1.5*	map	table
Extreme events Days with PRCP>0.47"	301	0.90"	-0.45	20	65	3.2*	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"	1564	0.29"	239	269	1.1	map	table
Extreme events Days with PRCP>0.47"	301	0.90"	50	51	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	4797 by year	0.19"		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"	463	1.97"	-0.34	65	116	1.8*	map	table
Extreme events Days with SNOW>3.0"	71	5.14"	-0.43	6	18	3.0*	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"	463	1.97"	0.09	96	74	1.3	map	table
Extreme events Days with SNOW>3.0"	71	5.14"	0.11	19	9	2.1	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"	463	1.97"	55	80	1.5*	map	table
Extreme events Days with SNOW>3.0"	71	5.14"	7	8	1.1	map	table

SNOW under 2 index extremes Help

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