ST BERNARD, AL - HCND station 017157

017157 - ST BERNARD, Alabama

Latitude
34° 10´N

Longitude
86° 49´W

Elevation
800 feet

10 nearest HCND stations

57 mi	NE :	SCOTTSBORO, AL
61 mi	NW :	MUSCLE SHOALS FAA AP, AL
65 mi	SE :	TALLADEGA, AL
74 mi	ENE :	VALLEY HEAD, AL
89 mi	N :	LEWISBURG EXPERIMENT STN, TN
89 mi	NNE :	TULLAHOMA, TN
95 mi	NW :	WAYNESBORO, TN
95 mi	E :	ROME, GA
100 mi	WSW :	ABERDEEN, MS
105 mi	WNW :	BOONEVILLE, MS

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

	Total observations	%	NDJFM observations	%
TMAX	17687	96.8%	7345	97.1%
TMIN	17644	96.6%	7323	96.8%
PRCP	13616	74.6%	5725	75.7%
SNOW	12013	65.8%	4938	65.3%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7345 by year	57.4°F	12.2°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>=75°F	548	0.26	108	64	1.7*	map	table
Extreme low events Days with TMAX<=38°F	523	-0.46	59	151	2.6*	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>=75°F	548	-0.56	26	144	5.5*	map	table
Extreme low events Days with TMAX<=38°F	523	0.61	169	43	3.9*	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>=75°F	548	79	90	1.1	map	table
Extreme low events Days with TMAX<=38°F	523	78	73	1.1	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	7323 by year	32.8°F	11.5°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<=17°F	561	-0.28	79	129	1.6*	map	table
Extreme high events Days with TMIN>=51°F	545	0.19	91	64	1.4*	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<=17°F	561	0.65	190	44	4.3*	map	table
Extreme high events Days with TMIN>=51°F	545	-0.86	20	194	9.7*	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<=17°F	561	66	81	1.2	map	table
Extreme high events Days with TMIN>=51°F	545	71	103	1.5*	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	5725 by year	0.24"		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"	2587	0.53"	0.03	455	446	1.0	map	table
Extreme events Days with PRCP>0.87"	515	1.58"	0.14	102	76	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"	2587	0.53"	-0.22	337	538	1.6*	map	table
Extreme events Days with PRCP>0.87"	515	1.58"	-0.40	47	120	2.6*	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"	2587	0.53"	418	427	1.0	map	table
Extreme events Days with PRCP>0.87"	515	1.58"	86	81	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	4938 by year	0.02"		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"	69	1.37"	-0.42	10	20	2.0	map	table
Extreme events Days with SNOW>2.0"	13	3.98"	-0.26	2	2	1.0	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"	69	1.37"	1.07	28	2	14.0*	map	table
Extreme events Days with SNOW>2.0"	13	3.98"	1.56	8	0	Inf	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"	69	1.37"	9	14	1.6	map	table
Extreme events Days with SNOW>2.0"	13	3.98"	6	0	Inf	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: