RICHMOND R E BYRD INT'L ARPT, VA - COOP Mid-Atlantic station 447201

447201 - RICHMOND R E BYRD INT'L ARPT, Virginia

Latitude
37° 31´N

Longitude
77° 19´W

Elevation
50 meters

COOP Mid-Atlantic

10 nearest COOP Mid-Atlantic stations

6 mi	WNW :	RICHMOND CITY LOCKS, VA
6 mi	WNW :	RICHMOND CHIMBORAZO, VA
7 mi	NW :	WESTBROOK SANATORIUM, VA
15 mi	S :	HOPEWELL, VA
19 mi	NNW :	ASHLAND, VA
20 mi	S :	CAMP LEE, VA
20 mi	S :	FORT LEE, VA
20 mi	SSW :	PETERSBURG, VA
22 mi	NE :	WALKERTON 2 NW, VA
22 mi	SW :	WINTERPOCK 4 W, VA

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

	Total observations	%	NDJFM observations	%
TMAX	18262	100.0%	7562	100.0%
TMIN	18248	99.9%	7552	99.9%
PRCP	18205	99.7%	7534	99.6%
SNOW	17967	98.4%	7445	98.4%

TMAX Help top of page

TMAX	observations	mean	std dev		Distribution	during extreme days of
NDJFM	7562 by year	53.3°F	12.7°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>=73°F	537	0.36	111	38	2.9*	map	table
Extreme low events Days with TMAX<=34°F	511	-0.27	79	128	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>=73°F	537	-0.63	20	147	7.3*	map	table
Extreme low events Days with TMAX<=34°F	511	0.56	154	50	3.1*	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>=73°F	537	75	113	1.5*	map	table
Extreme low events Days with TMAX<=34°F	511	65	57	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	7552 by year	32.1°F	10.7°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	578	-0.30	86	146	1.7*	map	table
Extreme high events Days with TMIN>=49°F	548	0.31	103	43	2.4*	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	578	0.60	186	48	3.9*	map	table
Extreme high events Days with TMIN>=49°F	548	-0.49	32	138	4.3*	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	578	78	70	1.1	map	table
Extreme high events Days with TMIN>=49°F	548	102	88	1.2	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	7534 by year	0.11"		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"	2393	0.34"	0.05	425	382	1.1	map	table
Extreme events Days with PRCP>0.58"	472	1.02"	-0.00	74	68	1.1	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"	2393	0.34"	-0.05	394	440	1.1	map	table
Extreme events Days with PRCP>0.58"	472	1.02"	0.20	96	61	1.6*	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"	2393	0.34"	371	378	1.0	map	table
Extreme events Days with PRCP>0.58"	472	1.02"	77	58	1.3	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	7445 by year	0.09"		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"	333	2.11"	-0.29	46	74	1.6*	map	table
Extreme events Days with SNOW>3.8"	66	6.07"	-0.21	10	12	1.2	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"	333	2.11"	0.52	93	35	2.7*	map	table
Extreme events Days with SNOW>3.8"	66	6.07"	0.49	12	4	3.0*	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"	333	2.11"	51	36	1.4	map	table
Extreme events Days with SNOW>3.8"	66	6.07"	11	7	1.6	map	table

SNOW under 2 index extremes Help

Maps - choose one extreme: