ANN ARBOR UNIV OF MI, MI - HCND station 200230

200230 - ANN ARBOR UNIV OF MI, Michigan

Latitude
42° 18´N

Longitude
83° 43´W

Elevation
900 feet

10 nearest HCND stations

30 mi	SSW :	ADRIAN 2NNE, MI
50 mi	ENE :	MOUNT CLEMENS ANG BASE, MI
53 mi	WSW :	HILLSDALE, MI
56 mi	NNW :	OWOSSO 3NNW, MI
58 mi	SSW :	WAUSEON WATER PLANT, OH
70 mi	WSW :	COLDWATER STATE SCHOOL, MI
80 mi	SW :	ANGOLA, IN
86 mi	SSE :	TIFFIN, OH
86 mi	S :	FINDLAY WPCC, OH
89 mi	NNW :	ALMA, MI

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

	Total observations	%	NDJFM observations	%
TMAX	17926	98.2%	7426	98.2%
TMIN	17896	98.0%	7399	97.8%
PRCP	15445	84.6%	5974	79.0%
SNOW	13471	73.8%	6027	79.7%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7426 by year	38.5°F	12.3°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>=59°F	518	0.29	102	42	2.4*	map	table
Extreme low events Days with TMAX<=21°F	560	-0.31	90	145	1.6*	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>=59°F	518	-0.50	30	123	4.1*	map	table
Extreme low events Days with TMAX<=21°F	560	0.33	155	87	1.8*	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>=59°F	518	85	96	1.1	map	table
Extreme low events Days with TMAX<=21°F	560	52	61	1.2	map	table

TMAX under 2 index extremes Help

Maps - choose one extreme:

TMIN Help top of page

TMIN	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7399 by year	23.4°F	11.6°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	552	-0.26	99	139	1.4*	map	table
Extreme high events Days with TMIN>=39°F	575	0.21	91	50	1.8*	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	552	0.41	161	72	2.2*	map	table
Extreme high events Days with TMIN>=39°F	575	-0.35	34	94	2.8*	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	552	47	59	1.3	map	table
Extreme high events Days with TMIN>=39°F	575	116	82	1.4*	map	table

TMIN under 2 index extremes Help

Maps - choose one extreme:

PRCP (total liquid water equivalent) Help top of page

PRCP	observations	mean		Distribution	during extreme days of
NDJFM	5974 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"	2932	0.19"	0.04	510	451	1.1*	map	table
Extreme events Days with PRCP>0.30"	583	0.62"	0.10	113	88	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"	2932	0.19"	-0.07	464	526	1.1*	map	table
Extreme events Days with PRCP>0.30"	583	0.62"	-0.37	63	133	2.1*	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"	2932	0.19"	406	448	1.1	map	table
Extreme events Days with PRCP>0.30"	583	0.62"	89	99	1.1	map	table

PRCP under 2 index extremes Help

Maps - choose one extreme:

SNOW Help top of page

SNOW	observations	mean		Distribution	during extreme days of
NDJFM	6027 by year	0.32"		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"	1750	1.11"	-0.08	282	323	1.1	map	table
Extreme events Days with SNOW>1.7"	350	3.40"	-0.09	54	70	1.3	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"	1750	1.11"	0.20	390	251	1.6*	map	table
Extreme events Days with SNOW>1.7"	350	3.40"	0.09	71	60	1.2	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"	1750	1.11"	222	245	1.1	map	table
Extreme events Days with SNOW>1.7"	350	3.40"	40	59	1.5	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: