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Clinton Municipal Airport, Iowa

Small airport in Clinton County, Iowa

Air quality

The air at Clinton Municipal Airport

Index 9, good, led by fine particles. Read at 10 PM from its reporting area, Clinton (IA), 7 miles off.

9Good
  • Fine particles (PM2.5)9Good6.1 mi
  • Ozone8Good11 ppb8.4 mi
  • Nitrogen dioxide1Good1.8 ppb24.6 mi
  • Sulfur dioxide0Good0 ppb6.1 mi
  • Carbon monoxide-0.2 ppm24.6 mi

The days ahead

Yesterday measured 30, good.

Smoke, the next 45 hours

No smoke near the ground through Sat 7 PM.

FriSat

Precipitation

What has fallen at Clinton Municipal Airport

0.24 in in the last 24 hours, and none in the 2 days before, to Thu 10 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.24in
Last 3 days
0.24in

Visibility

How far you can see at Clinton Municipal Airport, the next 45 hours

Visibility stays 8 miles or more through Sat 7 PM, lowest 8 miles Fri 10 AM.

FriSat

Airfield

Code
CWI
ICAO
KCWI
IATA
CWI
Field elevation
708 ft
Serves
Clinton
Kind
Small airport
Scheduled service
No
Its own instrument
CWI
Wind now
From 310° at 24 mph, read 15 Oct, 21:46

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
03 / 215,204 ft100 ftAsphalt29° / 209°5 mph head, on 0324 mph from the left
14 / 324,201 ft75 ftAsphalt145° / 325°23 mph head, on 326 mph from the left
032114322,000 ftN310° 24 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 Clinton (CWI), Clinton Municipal Airport's own instrument, measure by measure, on the field's own clock.

Temperature

54 F at 9 PM; 59 F at its warmest, 12 AM, and 54 F at its coolest, 9 PM.

Now
54F
9 PM
Highest
59F
12 AM
Lowest
54F
9 PM
Temperature and Dew point at Clinton, temperature from 53.6 to 59.0, the latest 53.6; dew point from 51.8 to 58.0, the latest 51.8, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF505254565860Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 52 F, the air 94% saturated; the humidity ran from 80% at 3 AM to 99% at 7 AM.

Dew point now
52F
9 PM
Humidity now
94%
Humidity, range
80 to 99%
Relative humidity at Clinton, relative humidity from 80 to 99, the latest 94, in per cent.RELATIVE HUMIDITY%80859095100Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Wind

16 mph from the west northwest at 10 PM; at its strongest 22 mph, 9 PM, with a gust of 32 mph at 9 PM.

Now
16mph
from the west northwest
Strongest
22mph
9 PM
Highest gust
32mph
9 PM
Wind and Gust at Clinton, wind from 6 to 22, the latest 16; gust from 18 to 32, the latest 32, in miles an hour.WIND AND GUSTmph010203040Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMWINDGUST
Wind direction at Clinton, wind direction from 80 to 310, the latest 300, in degrees.WIND DIRECTION°090180270360Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Pressure

29.93 inHg at 10 PM, rising 0.03 inHg over 3 hours; 0.22 inHg lower than a day before.

Now
29.93inHg
10 PM
3 hours
+0.03inHg
rising
24 hours
-0.22inHg
Pressure, altimeter at Clinton, pressure, altimeter from 29.90 to 30.15, the latest 29.93, in inches of mercury.PRESSURE, ALTIMETERinHg29.8029.9030.0030.1030.20Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Visibility

Down to 2 miles at 12 PM; 10 miles or more now.

Now
10+mi
Lowest
2mi
12 PM
Hours under a mile
0
Visibility at Clinton, visibility from 2.0 to 10.0, the latest 10.0, in miles.VISIBILITYmi02.557.510Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMLIFRIFRMVFRVFR

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

Cloud base

The lowest cloud base came down to 400 ft at 11 AM; a base was reported in 17 of the hours.

Lowest base now
-
Lowest in 24 hours
400ft
11 AM
Hours with a base reported
17
Lowest cloud base at Clinton, lowest cloud base from 400 to 2,900, the latest 1,300, in feet.LOWEST CLOUD BASEft01,0002,0003,000Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PMLIFRIFRMVFR

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

Precipitation

0.07 in measured in the gauge, the most, 0.03 in, in the hour to 12 PM.

Last 24 hours
0.07in
Wettest hour
0.03in
12 PM
Hours with some
6
Precipitation at Clinton, precipitation from 0.00 to 0.03, the latest trace, in inches.PRECIPITATIONin0.000.030.050.070.10Oct 153 AM6 AM9 AM12 PM3 PM6 PM9 PM

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

Clinton: 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 Clinton Municipal 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

ClintonCWI

At an airfield/0.2 mi away/709 ft/1 ft above here

temp, wind, gust, visibility, precip, pressure

US 30 ClintonSS0228

Beside a road/8.1 mi away/-/- ft from here

temp, pavement temp, wind, visibility, precip

measured daily2 instruments

De Witt 8.8 EIA-CN-30

In a volunteer observer's own ground/2.4 mi away/649 ft/59 ft below here

precip, snowfall, snow depth

Clinton No 1CLNI4

At a cooperative observer's station/5.4 mi away/564 ft/144 ft below here

snowfall, snow depth, precip, high, low

0in

Snow on the ground

Measured at Clinton No 1 (CLNI4), 5.4 miles from here, read 14 Oct, 18:00. measured daily

Elsewhere in Iowa

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

Near Clinton Municipal Airport

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

Near Clinton Municipal Airport