Storm Station

National Mall, District of Columbia

Unit of the national park system in District of Columbia

Air quality

The air at National Mall

Index 37, good, led by fine particles. Read at 10 PM from its reporting area, Northern Virginia and DC (DC), 2 miles off.

37Good
  • Fine particles (PM2.5)37Good2.2 mi
  • Ozone28Good12 ppb2.2 mi
  • Nitrogen dioxide16Good17.4 ppb2.2 mi
  • Sulfur dioxide0Good0 ppb13.7 mi
  • Carbon monoxide-0.4 ppm2.2 mi

The days ahead

Good each day through Fri Oct 9, led by fine particles. Yesterday measured 39, good.

Smoke, the next 41 hours

No smoke near the ground through Thu 2 PM.

WedThu

Precipitation

What has fallen at National Mall

None in the last 24 hours; 0.03 in over the last 3 days, to Tue 9 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.03in

Visibility

How far you can see at National Mall, the next 41 hours

Visibility stays 9 miles or more through Thu 2 PM, lowest 9 miles Thu 8 AM.

WedThu

Park

Designation
Unit of the national park system
Area
0.26 sq mi
Height at its point
14 ft
County
-
State
District of Columbia
Latitude
38.8899° N
Longitude
77.0222° W

What is measuring near here

The 3 instruments nearest National Mall, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.8 miles away.

measured now1 instrument

Citizen station FW7745FW7745

In a volunteer observer's own ground/1.9 mi away/76 ft/62 ft above here

temp, humidity, wind, precip, pressure

measured daily2 instruments

Washington 0.4 SDC-DC-12

In a volunteer observer's own ground/0.8 mi away/46 ft/32 ft above here

precip, snowfall, snow depth

National ArboretumNARD2

In a park or preserve/3.1 mi away/13 ft/1 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in District of Columbia

3 places, each with its own forecast and its own instruments.

Near National Mall

The nearest places, each with its own forecast and the instruments nearest it.

Near National Mall