WILLIAMSBURG, IA - COOP Northern Plains station 139067

139067 - WILLIAMSBURG, Iowa

Latitude
41° 40´N

Longitude
92° 1´W

Elevation
259 meters

COOP Northern Plains

10 nearest COOP Northern Plains stations

11 mi	SSW :	NORTH ENGLISH, IA
18 mi	NE :	WALFORD 2 SE, IA
21 mi	NW :	BELLE PLAINE, IA
22 mi	NE :	CEDAR RAPIDS MUNICIPAL AP, IA
23 mi	WNW :	BROOKLYN, IA
24 mi	E :	IOWA CITY, IA
25 mi	SSW :	SIGOURNEY, IA
25 mi	E :	IOWA CITY, IA
25 mi	E :	CORALVILLE DAM, IA
26 mi	E :	IOWA CITY RALSTON CREEK, IA

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

	Total observations	%	NDJFM observations	%
TMAX	17905	98.0%	7325	96.9%
TMIN	17850	97.7%	7322	96.8%
PRCP	17897	98.0%	7296	96.5%
SNOW	17607	96.4%	7005	92.6%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7325 by year	38.4°F	14.5°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>=61°F	502	0.33	97	40	2.4*	map	table
Extreme low events Days with TMAX<=16°F	496	-0.39	76	141	1.9*	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>=61°F	502	-0.25	43	77	1.8*	map	table
Extreme low events Days with TMAX<=16°F	496	0.00	97	112	1.2	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>=61°F	502	81	84	1.0	map	table
Extreme low events Days with TMAX<=16°F	496	53	56	1.1	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7322 by year	19.3°F	14.2°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<=-5°F	531	-0.39	79	149	1.9*	map	table
Extreme high events Days with TMIN>=38°F	490	0.27	87	43	2.0*	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<=-5°F	531	0.12	123	106	1.2	map	table
Extreme high events Days with TMIN>=38°F	490	-0.34	24	77	3.2*	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<=-5°F	531	52	52	1.0	map	table
Extreme high events Days with TMIN>=38°F	490	113	66	1.7*	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	7296 by year	0.05"		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"	1383	0.28"	-0.03	226	238	1.1	map	table
Extreme events Days with PRCP>0.42"	276	0.79"	0.07	44	38	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"	1383	0.28"	-0.24	155	265	1.7*	map	table
Extreme events Days with PRCP>0.42"	276	0.79"	-0.34	23	53	2.3*	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"	1383	0.28"	238	172	1.4*	map	table
Extreme events Days with PRCP>0.42"	276	0.79"	51	29	1.8*	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	7005 by year	0.18"		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"	510	2.47"	-0.10	92	113	1.2	map	table
Extreme events Days with SNOW>4.0"	63	6.32"	-0.24	9	16	1.8	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"	510	2.47"	-0.05	83	90	1.1	map	table
Extreme events Days with SNOW>4.0"	63	6.32"	-0.16	9	12	1.3	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"	510	2.47"	72	46	1.6*	map	table
Extreme events Days with SNOW>4.0"	63	6.32"	4	5	1.2	map	table

SNOW under 2 index extremes Help

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