MASON CITY, IA - COOP Northern Plains station 135230

135230 - MASON CITY, Iowa

Latitude
43° 10´N

Longitude
93° 12´W

Elevation
332 meters

COOP Northern Plains

10 nearest COOP Northern Plains stations

7 mi	W :	MASON CITY MUNICIPAL ARPT, IA
17 mi	SSW :	SHEFFIELD 3 NW, IA
18 mi	N :	NORTHWOOD, IA
21 mi	NE :	ST ANSGAR, IA
22 mi	ENE :	OSAGE, IA
22 mi	SE :	MARBLE ROCK, IA
23 mi	WNW :	FOREST CITY 2 NNE, IA
24 mi	NW :	LAKE MILLS, IA
28 mi	ESE :	CHARLES CITY, IA
28 mi	ESE :	CHARLES CITY, IA

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

	Total observations	%	NDJFM observations	%
TMAX	17753	97.2%	7320	96.8%
TMIN	17729	97.1%	7318	96.8%
PRCP	17744	97.2%	7299	96.5%
SNOW	17003	93.1%	6584	87.1%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7320 by year	32.8°F	14.3°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>=55°F	520	0.30	96	44	2.2*	map	table
Extreme low events Days with TMAX<=10°F	509	-0.38	78	140	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>=55°F	520	-0.15	53	73	1.4	map	table
Extreme low events Days with TMAX<=10°F	509	-0.10	86	120	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>=55°F	520	70	67	1.0	map	table
Extreme low events Days with TMAX<=10°F	509	56	76	1.4	map	table

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TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7318 by year	14.4°F	14.8°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<=-10°F	547	-0.35	81	139	1.7*	map	table
Extreme high events Days with TMIN>=33°F	556	0.17	87	50	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<=-10°F	547	-0.13	100	140	1.4*	map	table
Extreme high events Days with TMIN>=33°F	556	-0.21	45	72	1.6*	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<=-10°F	547	57	82	1.4*	map	table
Extreme high events Days with TMIN>=33°F	556	108	73	1.5*	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	7299 by year	0.04"		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"	1393	0.21"	-0.06	216	237	1.1	map	table
Extreme events Days with PRCP>0.34"	270	0.67"	0.12	48	36	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"	1393	0.21"	-0.25	155	281	1.8*	map	table
Extreme events Days with PRCP>0.34"	270	0.67"	-0.39	22	53	2.4*	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"	1393	0.21"	221	231	1.0	map	table
Extreme events Days with PRCP>0.34"	270	0.67"	56	41	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	6584 by year	0.23"		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"	742	2.04"	-0.20	112	162	1.4*	map	table
Extreme events Days with SNOW>3.0"	135	5.60"	-0.27	20	34	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"	742	2.04"	-0.21	91	153	1.7*	map	table
Extreme events Days with SNOW>3.0"	135	5.60"	-0.26	14	27	1.9	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"	742	2.04"	88	148	1.7*	map	table
Extreme events Days with SNOW>3.0"	135	5.60"	19	30	1.6	map	table

SNOW under 2 index extremes Help

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