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Marshfield Municipal George Harlow Field, Massachusetts

Small airport in Plymouth County, Massachusetts

Air quality

The air at Marshfield Municipal George Harlow Field

Index 38, good, led by fine particles. Read at 1 AM from its reporting area, North Bristol-Plymouth (MA), 17 miles off.

38Good
  • Fine particles (PM2.5)38Good17.7 mi
  • Ozone5Good2 ppb17.7 mi

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 15, good.

Smoke, the next 43 hours

No smoke near the ground through Sat 8 PM.

FriSat

Precipitation

What has fallen at Marshfield Municipal George Harlow Field

None in the last 24 hours; 0.07 in over the last 3 days, to Fri 1 AM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.07in

Visibility

How far you can see at Marshfield Municipal George Harlow Field, the next 43 hours

Mist or haze: visibility falls to 1 miles Fri 9 PM.

FriSat

Airfield

Code
GHG
ICAO
KGHG
IATA
-
Field elevation
11 ft
Serves
Marshfield
Kind
Small airport
Scheduled service
No
Its own instrument
GHG
Wind now
Calm, read 16 Oct, 00:55

Runways

RunwayLengthWidthSurfaceHeading, trueWind along it nowCrosswind now
06 / 243,900 ft100 ftAsphalt46° / 226°CalmCalm
06241,000 ftN
Runways from their surveyed ends, north up, lengths and positions to scale.

Measured here

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

Every hour from Marshfield (GHG), Marshfield Municipal George Harlow Field's own instrument, measure by measure, on the field's own clock.

Temperature

43 F at 12 AM; 61 F at its warmest, 3 PM Thursday, and 42 F at its coolest, 9 PM Thursday.

Now
43F
12 AM
Highest
61F
3 PM Thursday
Lowest
42F
9 PM Thursday
Temperature and Dew point at Marshfield, temperature from 41.9 to 60.8, the latest 42.8; dew point from 22.4 to 48.2, the latest 39.2, in degrees Fahrenheit.TEMPERATURE AND DEW POINTF2030405060703 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16FREEZINGTEMPERATUREDEW POINT

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

Humidity and dew point

A dew point of 39 F, the air 87% saturated; the humidity ran from 24% at 4 PM Thursday to 90% at 9 PM Thursday.

Dew point now
39F
12 AM
Humidity now
87%
Humidity, range
24 to 90%
Relative humidity at Marshfield, relative humidity from 24 to 90, the latest 87, in per cent.RELATIVE HUMIDITY%204060801003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Wind

Calm at 12 AM; at its strongest 12 mph, 5 AM Thursday, with a gust of 26 mph at 5 AM Thursday.

Now
0mph
calm
Strongest
12mph
5 AM Thursday
Highest gust
26mph
5 AM Thursday
Wind and Gust at Marshfield, wind from 0 to 12, the latest 0; gust from 14 to 26, the latest 14, in miles an hour.WIND AND GUSTmph01020303 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16WINDGUST
Wind direction at Marshfield, wind direction from 50 to 360, the latest 260, 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

30.15 inHg at 12 AM, falling 0.04 inHg over 3 hours; 0.15 inHg higher than a day before.

Now
30.15inHg
12 AM
3 hours
-0.04inHg
falling
24 hours
+0.15inHg
Pressure, altimeter at Marshfield, pressure, altimeter from 30.00 to 30.21, the latest 30.15, in inches of mercury.PRESSURE, ALTIMETERinHg30.0030.1030.2030.303 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16

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

Visibility

10 miles or more every hour.

Now
10+mi
Lowest
10+mi
Hours under a mile
0
Visibility at Marshfield, visibility from 10.0 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 3,400 ft at 7 PM Thursday; a base was reported in 7 of the hours.

Lowest base now
-
Lowest in 24 hours
3,400ft
7 PM Thursday
Hours with a base reported
7
Lowest cloud base at Marshfield, lowest cloud base from 3,400 to 3,900, the latest 3,900, in feet.LOWEST CLOUD BASEft3,4003,6003,8004,0003 AM6 AM9 AM12 PM3 PM6 PM9 PMOct 16VFR

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

Precipitation

None measured in the gauge in the last 24 hours.

Last 24 hours
0.00in
Wettest hour
-
Hours with some
0

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

Marshfield: 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 Marshfield Municipal George Harlow Field, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 0.1 miles away.

measured now3 instruments

MarshfieldGHG

At an airfield/0.1 mi away/11 ft/level with here

temp, wind, gust, visibility, precip, pressure

StoughtonMA021

Beside a road/20.4 mi away/232 ft/221 ft above here

temp, pavement temp, wind, visibility, precip

Blue HillsBLUM3

At a river or reservoir gauge/23.7 mi away/207 ft/196 ft above here

temp, wind, gust, humidity, pressure

measured daily2 instruments

Marshfield 2.7 EMA-PL-86

In a volunteer observer's own ground/1.1 mi away/30 ft/19 ft above here

precip, snowfall, snow depth

HinghamHINM3

At a cooperative observer's station/15.6 mi away/89 ft/78 ft above here

snowfall, snow depth, precip, high, low

0in

Snow on the ground

Measured at Hingham (HINM3), 15.6 miles from here, read 14 Oct, 19:00. measured daily

Elsewhere in Massachusetts

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

Near Marshfield Municipal George Harlow Field

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

Near Marshfield Municipal George Harlow Field