WASHINGTON, IA - COOP Northern Plains station 138688

138688 - WASHINGTON, Iowa

Latitude
41° 18´N

Longitude
91° 41´W

Elevation
230 meters

COOP Northern Plains

10 nearest COOP Northern Plains stations

9 mi	SW :	BRIGHTON 3 N, IA
17 mi	ESE :	COLUMBUS JUNCT 2 SSW, IA
24 mi	SW :	FAIRFIELD, IA
24 mi	NNE :	IOWA CITY, IA
25 mi	NW :	NORTH ENGLISH, IA
25 mi	SSE :	MOUNT PLEASANT 1 SSW, IA
25 mi	NNE :	IOWA CITY, IA
26 mi	S :	OAKLAND MILLS 3 W, IA
27 mi	W :	SIGOURNEY, IA
27 mi	NNE :	IOWA CITY RALSTON CREEK, IA

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

	Total observations	%	NDJFM observations	%
TMAX	18191	99.6%	7531	99.6%
TMIN	18188	99.6%	7530	99.6%
PRCP	18193	99.6%	7527	99.5%
SNOW	18163	99.5%	7495	99.1%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7531 by year	40.0°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>=62°F	557	0.37	122	46	2.7*	map	table
Extreme low events Days with TMAX<=18°F	519	-0.47	72	149	2.1*	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>=62°F	557	-0.31	46	100	2.2*	map	table
Extreme low events Days with TMAX<=18°F	519	0.06	110	109	1.0	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>=62°F	557	81	101	1.2	map	table
Extreme low events Days with TMAX<=18°F	519	57	70	1.2	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7530 by year	21.8°F	13.8°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<=-2°F	516	-0.43	75	142	1.9*	map	table
Extreme high events Days with TMIN>=40°F	532	0.29	110	50	2.2*	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<=-2°F	516	0.14	125	99	1.3	map	table
Extreme high events Days with TMIN>=40°F	532	-0.38	30	94	3.1*	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<=-2°F	516	50	62	1.2	map	table
Extreme high events Days with TMIN>=40°F	532	115	74	1.6*	map	table

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PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	7527 by year	0.06"		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"	1608	0.26"	-0.00	272	276	1.0	map	table
Extreme events Days with PRCP>0.41"	314	0.77"	0.14	61	42	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"	1608	0.26"	-0.24	185	319	1.7*	map	table
Extreme events Days with PRCP>0.41"	314	0.77"	-0.45	20	68	3.4*	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"	1608	0.26"	257	241	1.1	map	table
Extreme events Days with PRCP>0.41"	314	0.77"	55	43	1.3	map	table

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SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	7495 by year	0.15"		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"	598	1.94"	-0.23	83	137	1.7*	map	table
Extreme events Days with SNOW>3.0"	100	4.93"	-0.30	14	24	1.7	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"	598	1.94"	0.03	108	96	1.1	map	table
Extreme events Days with SNOW>3.0"	100	4.93"	-0.16	13	21	1.6	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"	598	1.94"	73	89	1.2	map	table
Extreme events Days with SNOW>3.0"	100	4.93"	9	14	1.6	map	table

SNOW under 2 index extremes Help

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