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Duluth International Airport, Minnesota

Medium airport in St. Louis County, Minnesota

Air quality

The air at Duluth International Airport

Index 20, good, led by fine particles. Read at 1 AM from its reporting area, Duluth Area (MN), 17 miles off.

20Good
  • Fine particles (PM2.5)20Good5.4 mi
  • Ozone14Good18 ppb5.4 mi

The days ahead

Good each day through Sun Oct 18, led by fine particles. Yesterday measured 19, good.

Smoke, the next 42 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Duluth International Airport

0.09 in in the last 24 hours, and none in the 2 days before, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.09in
Last 3 days
0.09in

Visibility

How far you can see at Duluth International Airport, the next 42 hours

Mist or haze: visibility falls to 3 miles Fri 2 AM.

FriSat

Airfield

Code
DLH
ICAO
KDLH
IATA
DLH
Field elevation
1,428 ft
Serves
Duluth
Kind
Medium airport
Scheduled service
Yes
Its own instrument
DLH
Wind now
From 350° at 9 mph, read 16 Oct, 02:02

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
03 / 215,719 ft150 ftAsphalt31° / 211°7 mph head, on 036 mph from the left
09 / 2710,591 ft150 ftConcrete92° / 272°2 mph head, on 279 mph from the right
032109275,000 ftN350° 9 mph
Runways from their surveyed ends, north up, lengths and positions to scale; the rose in the corner is the wind now.

Measured here

What the airfield's own instrument measured, the last 24 hours

Every hour from Duluth (DLH), Duluth International Airport's own instrument, measure by measure, on the field's own clock.

Temperature

46 F at 2 AM; 55 F at its warmest, 8 AM Thursday, and 45 F at its coolest, 7 AM Thursday.

Now
46F
2 AM
Highest
55F
8 AM Thursday
Lowest
45F
7 AM Thursday
Temperature and Dew point at Duluth, temperature from 44.5 to 55.4, the latest 46.0; dew point from 39.2 to 46.0, the latest 44.0, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF3540455055603 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16TEMPERATUREDEW POINT

How it is measured: Stevenson screen and siting, Field Book FB-INS-009

Humidity and dew point

A dew point of 44 F, the air 93% saturated; the humidity ran from 54% at 8 AM Thursday to 98% at 6 PM Thursday.

Dew point now
44F
2 AM
Humidity now
93%
Humidity, range
54 to 98%
Relative humidity at Duluth, relative humidity from 54 to 98, the latest 93, in per cent.RELATIVE HUMIDITY%4060801003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

How it is measured: Humidity variables, Field Book FB-WAT-002

Wind

9 mph from the north at 2 AM; at its strongest 12 mph, 8 AM Thursday, with a gust of 20 mph at 12 PM Thursday.

Now
9mph
from the north
Strongest
12mph
8 AM Thursday
Highest gust
20mph
12 PM Thursday
Wind and Gust at Duluth, wind from 1 to 12, the latest 9; gust from 20 to 20, the latest 20, in miles an hour.WIND AND GUSTmph051015203 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16WINDGUST
Wind direction at Duluth, wind direction from 40 to 350, the latest 350, in degrees.WIND DIRECTION°0901802703603 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

How it is measured: Coriolis as geometry, Field Book FB-ENG-008

Pressure

29.96 inHg at 2 AM, rising 0.05 inHg over 3 hours; 0.21 inHg lower than a day before.

Now
29.96inHg
2 AM
3 hours
+0.05inHg
rising
24 hours
-0.21inHg
Pressure, altimeter at Duluth, pressure, altimeter from 29.91 to 30.17, the latest 29.96, in inches of mercury.PRESSURE, ALTIMETERinHg29.9030.0030.1030.203 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

How it is measured: Hydrostatic balance, Field Book FB-ENG-003

Visibility

Down to 2 miles at 11 AM Thursday; 10 miles or more now.

Now
10+mi
Lowest
2mi
11 AM Thursday
Hours under a mile
0
Visibility at Duluth, visibility from 1.5 to 10.0, the latest 10.0, in miles.VISIBILITYmi02.557.5103 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16LIFRIFRMVFRVFR

How it is measured: Fog types, Field Book FB-WAT-020

Cloud base

The lowest cloud base came down to 400 ft at 12 PM Thursday; a base was reported in 23 of the hours.

Lowest base now
1,200ft
Lowest in 24 hours
400ft
12 PM Thursday
Hours with a base reported
23
Lowest cloud base at Duluth, lowest cloud base from 400 to 3,100, the latest 1,200, in feet.LOWEST CLOUD BASEft01,0002,0003,0004,0003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16LIFRIFRMVFRVFR

How it is measured: Cloud classification, Field Book FB-SKY-001

Precipitation

0.32 in measured in the gauge, the most, 0.08 in, in the hour to 3 PM Thursday.

Last 24 hours
0.32in
Wettest hour
0.08in
3 PM Thursday
Hours with some
14
Precipitation at Duluth, precipitation from 0.00 to 0.08, the latest trace, in inches.PRECIPITATIONin0.000.030.050.070.103 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

How it is measured: ASOS, Field Book FB-INS-002

Duluth: every reading, the last 7 days, 30 days and the year, and how well it reports

What is measuring near here

The 5 instruments nearest Duluth International Airport, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.2 miles away.

measured now3 instruments

DuluthDLH

At an airfield/0.2 mi away/1,427 ft/1 ft below here

temp, wind, gust, visibility, precip, pressure

Duluth WFODLHM5

At a river or reservoir gauge/0.7 mi away/1,431 ft/3 ft above here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Duluth 4.6 WNWMN-SL-386

In a volunteer observer's own ground/1.7 mi away/1,394 ft/34 ft below here

precip, snowfall, snow depth

WrenshallWRSM5

At a cooperative observer's station/17.9 mi away/1,037 ft/391 ft below here

snowfall, snow depth, precip, high, low

-

Snow on the ground

Elsewhere in Minnesota

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

Near Duluth International Airport

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

Near Duluth International Airport