Plotted Archived Surface Data Maps
Select a region OR a map center location (4-digit ICAO ID, 5-digit WMO Number, or lat,lon) plus zoom factor, variable, year, month, day, time, density of station coverage for map, scaling factor for plotted text, and size of map.

Region:	Variable:	Year:	Month:	Day:	Time:	Density:	Scaling:
New England New Hampshire Northeast Mid-Atlantic Southeast Midwest Southern Plains Northwest Southwest Contiguous US Alaska Hawaii Eastern Canada Western Canada Northern Canada Canada North America Central America South America Europe Asia Pakistan North Asia West Asia Southeast Asia Africa North Africa South Africa Middle East Australia West Pacific Antarctica Arctic	Temperature(F) Temperature(C) Water Temps(C) Station Plot(F) Dewpoint(F) Dewpoint(C) Dewpoint Depression(F) Dewpoint Depression(C) Relative Humidity Sea Level Pressure Station Pressure Sfc Altimeter Setting Cloud Cover Cloud Ceiling Wind Barb Wind Vector Streamlines Wind Direction Wind Speed(kts) Wind Speed(m/s) Wind Gusts(kts) Wind Gusts(m/s) Surface Visibility(mi.) Present Weather Weather Depiction Pressure Tendency Wind Chill (2001-present formula) Wind Chill (pre 2001 formula) Heat Index Max Temperature(F) Max Temperature(C) Min Temperature(F) Min Temperature(C) Snow Depth(in.) 1HR Precip(in.) 6HR Precip(in.) 24HR Precip(in.) NCEP Fronts City IDs	1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024	Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec	1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31	0 Z 1 Z 2 Z 3 Z 4 Z 5 Z 6 Z 7 Z 8 Z 9 Z 10 Z 11 Z 12 Z 13 Z 14 Z 15 Z 16 Z 17 Z 18 Z 19 Z 20 Z 21 Z 22 Z 23 Z	Default Density Lowest Density Low Density Moderate-Low Density Moderate-High Density High Density Highest Density	Scale .4 .5 .6 .7 .8 .9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
Map Size:	Web/Print:
640x480 800x600 912x650 1024x768	Web Page Print Only

----------OR----------

Station ID:

Zoom Factor:

Zoom in x 90% Zoom in x 80% Zoom in x 70% Zoom in x 60% Zoom in x 50% Zoom in x 40% Zoom in x 30% Zoom in x 20% Zoom in x 10% No Zoom Zoom out x 10% Zoom out x 20% Zoom out x 30% Zoom out x 40% Zoom out x 50% Zoom out x 60% Zoom out x 70% Zoom out x 80% Zoom out x 90% Zoom out x 100% Zoom out x 125% Zoom out x 150% Zoom out x 177% Zoom out x 200% Zoom out x 250% Zoom out x 300% Zoom out x 350% Zoom out x 400%

---

Notes:

• Online archived data go back to July 30, 1998 except for NCEP fronts. Data outside of North and/or Central America are limited--even more so prior to 1999.
• The station plot legend is shown here.
• Archived 3-Hourly NCEP front data covering N. America start at 00Z on 9 February 2001 and end at 09Z on 1 October 2018 and resume on 1 October 2020. These archived NCEP frontal position data are available every 3 hours and are valid for 00Z,03Z,06Z,09Z,12Z,15Z,18Z, and 21Z. Choosing an intermediate hour will return data for the previous valid hour.
• Use highest density setting for most regions outside of North America.
• Station idenitiers (for centerring the map) can be specified as ICAO identifiers (e.g. KALB) or WMO number (e.g. 72518) or latitude,longitude pairs (e.g. 42.75,-73.80). This feature will center the map at that location and will enable the user to zoom in or out by setting the zoom factor. The zoom factor does not work for a standard pre-defined region.
• The 912x650 size works best for full page 8.5"x11.5" printing, if you select the landscape orientation using the "Properties" or "Preferences" option of the print window.
• The zoom function only works in conjunction with the station identifier, not with the pre-defined regions.