Skip to content
Know before you taxi

All Products

My Airports

Your shortcuts, saved on this device. Search to add an airport.

No airports saved yet. Add the fields you visit most.

Ask ATIS

Groton New London Airport (KGON) Aviation Weather: METAR, TAF & ATIS

As of 8:56 AM ET, Oct 29, KGON is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported. The FAA lists no ground stop or delay program for KGON right now.

Live aviation weather for Groton New London Airport in Groton, CT, including METAR, TAF, ATIS, flight category, wind, visibility, ceiling, altimeter and runway crosswinds.

Groton New London Airport (KGON) is a regional airport serving Groton, CT at a field elevation of 9 ft. KGON reports its own METAR and publishes a TAF, decoded live on this page as flight category, wind, visibility, ceiling and altimeter. It has 2 physical runways (05/23, 15/33), the longest 5,000 ft. The official FAA airport diagram is at the bottom of the page.

Ask ATIS AIAsk anything about KGON's weather, runways or delays, or search another airport.
VFR
Observed 1256Z (8:56 AM EDT)live · refreshes every 60s
Wind
Calm
Visibility
10+ sm
Ceiling
Unlimited
Altimeter
30.29"
Temp / Dew
51°F / 11°C
dew 49°F / 9°C

Wind calm, visibility 10+ statute miles, no cloud data, temperature 11°C (51°F), altimeter 30.29 inHg. Conditions are Visual Flight Rules (VFR).

Raw METAR
METAR KGON 291256Z 00000KT 10SM CLR 11/09 A3029 RMK AO2 SLP257 T01060094

Current pilot readout for KGON

KGON is currently VFR with calm winds, visibility 10+ statute miles, and no ceiling reported. Density altitude is approximately -1,000 ft (field elevation 9 ft). Review the latest TAF below for forecast changes before departure.

KGON by the numbers

What the long-run records say about flying here, computed for this airport alone.

76%
of daylight hours VFR, 2006 to 2025

KGON reported VFR in 76% of daylight observations over 20 years, about 259 flyable days a year. November is the most reliable month and May the least, with IFR or worse 18% of the time. When conditions drop it is usually a mix of low ceilings (under 1,000 ft 9% of hours) and low visibility (under 3 miles 6%).

31%
of windy hours favor runway 23

Over 20 years of hourly winds, runway 23 had the best headwind 31% of the time, runway 33 31%, and winds were calm 12% of hours. Winds most often blow from the north. Crosswind on the best available runway topped 15 kt in under 1% of hours.

21
snow days a year

Snow fell on about 21 days a year and freezing rain or drizzle on 2. From December to February KGON was IFR or worse 12% of the time, against 13% from June to August.

56
fog days a year

Fog was reported on about 56 days a year, and fog or mist on 172. May and June are the foggiest months, with fog in 18% of hours, against 9% in November.

15%
of hours with gusts

Gusts showed up in 15% of hours, typically 8 kt above the steady wind, and the strongest credible gust on record was 72 kt. March is the windiest month (mean 9 kt) and July the calmest.

Sources: hourly observations 2006 to 2025 and the per-runway wind climatology 2006 to 2025. Historical summaries, not a forecast: check the current METAR, TAF and a briefing before flight.

New to aviation weather? How to read a METAR → · What VFR/MVFR/IFR mean → · Decode any METAR/TAF → · Density altitude calculator →

Runway wind check

Estimated head/tailwind and crosswind for each runway end from the current reported wind.

Current wind is calm: calm wind is not a factor for runway selection, and with no wind there is no head/tail or crosswind component to compute. Live numbers return automatically once a report includes a wind direction.

RunwayHead / TailCrosswind
05--
15--
23--
33--

Open the crosswind calculator to try your own wind and runway numbers →

KGON runways

2 physical runways · 4 runway ends. Each card opens the runway's intelligence page: equipment and lighting, LAHSO, frequencies, today's configuration, predicted use, history and approaches.

  • Runway 05/23
    5,000 × 150 ft · ASP
    Status not monitored
    Current use
    no stated-runway source at KGON
    Wind
    05
    no steady wind
    23
    no steady wind
    no active equipment NOTAM receivedView Runway Intelligence →
  • Runway 15/33
    4,000 × 96 ft · ASP
    Restricted (NOTAM)
    Current use
    no stated-runway source at KGON
    Wind
    15
    no steady wind
    33
    no steady wind
    1 active equipment NOTAMView Runway Intelligence →

“Current use” is what the facilitystates; wind components are arithmetic on the current METAR against TRUE headings; status reflects NOTAMs received through SWIM, the tower's TFDM record and the D-ATIS — a runway reads “Open” only with a complete NOTAM picture.

KGON weather radar

Live NEXRAD + lightning, with a 4-hour future-radar forecast. Drag to pan, tap ⚡ to toggle lightning.

Loading…
Loading radar…

Radar: NOAA/NWS via IEM · Forecast: NOAA HRRR · Lightning: NOAA · Map © Stadia Maps © OpenMapTiles © OpenStreetMap

NOAA NEXRAD composite and lightning, updated about every five minutes; amber frames are HRRR model guidance, not observed radar. Not for navigation.

Pilot reports (PIREPs) within 100 NM of KGON

Reported by pilots in flight over the past 6 hours, via aviationweather.gov.

PIREP1334Z (9:34 AM EDT) · 56 NM NW of KGON · 5,500 ft MSL · P28A
Show raw report
BAF UA /OV BDL360010 /TM 1334 /FL055 /TP P28A /RM BKN CLDS BLO
BAF UAHeader: reporting station and UA: a routine pilot report.
OV BDL360010Location: fix or navaid, optionally with a radial and distance in NM.
TM 1334Reported at 13:34 UTC.
FL055Altitude: 5,500 ft MSL.
TP P28AAircraft type reporting.
RM BKN CLDS BLORemarks.
PIREP1243Z (8:43 AM EDT) · 58 NM NW of KGON · 700 ft MSL · C172
Show raw report
BAF UA /OV RNAV RY2/TM 1243/FL007/TP C172/RM TOP LAYER 013-009 P/U RY 006
BAF UAHeader: reporting station and UA: a routine pilot report.
OV RNAV RY2Location: fix or navaid, optionally with a radial and distance in NM.
TM 1243Reported at 12:43 UTC.
FL007Altitude: 700 ft MSL.
TP C172Aircraft type reporting.
RM TOP LAYER 013-009 P/U RY …Remarks.
PIREP1240Z (8:40 AM EDT) · 50 NM W of KGON · 24,000 ft MSL · A319
Show raw report
BDR UA /OV BDR/TM 1240/FL240/TP A319/TB NEG
BDR UAHeader: reporting station and UA: a routine pilot report.
OV BDRLocation: fix or navaid, optionally with a radial and distance in NM.
TM 1240Reported at 12:40 UTC.
FL240Altitude: 24,000 ft MSL.
TP A319Aircraft type reporting.
TB NEGTurbulence: none reported.
PIREP1237Z (8:37 AM EDT) · 48 NM NW of KGON · 2,500 ft MSL · A320
Show raw report
BDL UA /OV KBDL060010/TM 1237/FL025/TP A320/RM IN THE CLEAR
BDL UAHeader: reporting station and UA: a routine pilot report.
OV KBDL060010Location: fix or navaid, optionally with a radial and distance in NM.
TM 1237Reported at 12:37 UTC.
FL025Altitude: 2,500 ft MSL.
TP A320Aircraft type reporting.
RM IN THE CLEARRemarks.
PIREP1221Z (8:21 AM EDT) · 50 NM W of KGON · 21,000 ft MSL · B739
Show raw report
BDR UA /OV BDR/TM 1221/FL210/TP B739/TB NEG/RM LGT CHOP AT 170
BDR UAHeader: reporting station and UA: a routine pilot report.
OV BDRLocation: fix or navaid, optionally with a radial and distance in NM.
TM 1221Reported at 12:21 UTC.
FL210Altitude: 21,000 ft MSL.
TP B739Aircraft type reporting.
TB NEGTurbulence: none reported.
RM LGT CHOP AT 170Remarks.
PIREP1212Z (8:12 AM EDT) · 78 NM NW of KGON · 6,000 ft MSL · P212
Show raw report
BDL UA /OV CTR020010/TM 1212/FL060/TP P212/SK BKN025/TB NEG/RM VMC
BDL UAHeader: reporting station and UA: a routine pilot report.
OV CTR020010Location: fix or navaid, optionally with a radial and distance in NM.
TM 1212Reported at 12:12 UTC.
FL060Altitude: 6,000 ft MSL.
TP P212Aircraft type reporting.
SK BKN025Sky condition: cloud bases and tops in hundreds of feet MSL.
TB NEGTurbulence: none reported.
RM VMCRemarks.
PIREP1156Z (7:56 AM EDT) · 85 NM W of KGON · during descent · C68A
Show raw report
POU UA /OV 6NM FINAL RWY 24/TM 1156/FL020/TP C68A/RM CIG BKN024
POU UAHeader: reporting station and UA: a routine pilot report.
OV 6NM FINAL RWY 24Location: fix or navaid, optionally with a radial and distance in NM.
TM 1156Reported at 11:56 UTC.
FL020Altitude: 2,000 ft MSL.
TP C68AAircraft type reporting.
RM CIG BKN024Remarks.
PIREP1102Z (7:02 AM EDT) · 58 NM NW of KGON · during descent · P28A
Show raw report
BAF UA /OV RNAV RY 2/TM 1102/FL005/TP P28A/RM P/U RY 005
BAF UAHeader: reporting station and UA: a routine pilot report.
OV RNAV RY 2Location: fix or navaid, optionally with a radial and distance in NM.
TM 1102Reported at 11:02 UTC.
FL005Altitude: 500 ft MSL.
TP P28AAircraft type reporting.
RM P/U RY 005Remarks.

⚠️ PIREPs are unverified pilot reports. Not for operational use: conditions change between reports.

Recent aviation weather trends at KGON

From ATIS Alerts' hourly weather history.

Last 24 hours

History is still being collected. Check back in a few days.

Last 7 days
VFR 100%
Wind avg/max: 5/17 kt
Max gust: 30 kt
Lowest ceiling: -
Lowest vis: 10 sm
Prevailing wind: N
Category changes: 0
Wind-favored runway - past 30 days

Share of hours each runway had the most headwind. From wind reports, not ATC assignments.

05
41%
23
26%
33
24%
15
9%

TAF | Terminal Aerodrome Forecast

Issued 1128Z (7:28 AM EDT)

TAF KGON 291128Z 2912/3012 VRB04KT P6SM SCT200 BKN250 FM291500 22008KT P6SM SKC FM300800 25006KT P6SM BKN250

New to TAFs? How to read one →

Get KGON weather alerts in Telegram

Stop refreshing aviation weather manually. Track KGON in ATIS Alerts and get notified when a new METAR changes the picture: a category drop, or wind and ceiling moving toward your minimums.

Track KGON free on Telegram

Live KGON Weather

Live crosswind meter

Measured by KGON's own weather station.

N0523wind calm / variable

Wind is calm or variable. Either end works.

Asphalt · 5,000 ft. Headings from FAA runway data. Not for navigation.

Field aerial

North up

Aerial photo of Groton New London Airport (KGON) with runway 05/23, 15/33 marked
N ↑

Runway 05/23, 15/33 drawn from FAA threshold coordinates.

Imagery: USGS The National Map (public domain). Something off? ✏️ Suggest an edit

Airport info

From the FAA airport record (cycle 2026-10-01) and OurAirports.

Services

Fuel
100LL · Jet A
Attended
Daily 0600- 1400 local
Repairs
Airframe & engine, major
Oxygen
Bottled, high & low pressure · Bulk, high & low pressure
Transient parking
Tie-downs
Landing fee
Yes
Other services
Air freight · Avionics · Cargo handling · Charter · Flight instruction · Aircraft rental · Annual surveying
Control tower
Yes
Wind indicator
Lighted

Airport

Type
Regional airport
ICAO
KGON
IATA
GON
FAA LID
GON
City
Groton
State
Connecticut
Country
United States
Elevation
9 ft
Coordinates
41.3301, -72.0451
Runways
2 physical runways · 4 runway ends
Longest runway
5,000 ft
Weather reporting
Reports METAR
TAF
Published
ATIS
127 MHz
CTAF
125.6 MHz
Time zone
America/New_York
Sunset in
8h 11m

Is there a ground stop at GON today? Delay status and history →

Run a flight school, FBO, or club here? Embed KGON's live status on your website, free →

Nearby airports

Compare nearby METAR/TAF stations within 25, 50 and 100 NM before departure or arrival.

RC flying fields nearby

AMA model-aircraft club fields around this airport: live wind, crosswind & flyability on each page.

All RC flying fields →

See all Connecticut airports →

Historical Flying Weather at KGON

2006–2025 · ATIS Alerts Flying Weather Index

Based on historical observations from 2006–2025, KGON reported VFR conditions during about 75.7% of valid daylight observations, with an estimated 259 VFR flying days a year. November had the most VFR weather; May had the most instrument conditions. Surface winds averaged 7.6 kt, calm 10.9% of the time.

VFR Score
39
Wind Score
55
Reliability Score
37
National VFR rank
#1077 of 1,400
Regional rank
#46
State rank
#9
Full historical breakdown
Daylight VFR
75.7%
MVFR
12.0%
IFR
6.4%
LIFR
5.3%
Est. VFR days/yr
259
Most VFR month
November
Fewest VFR month
May
Median ceiling
3,100 ft
Median visibility
10 sm
Calm wind
10.9%
Median wind
7 kt
Gusty hours
15.1%
Crosswind >15 kt
0.2%
Fog/mist days/yr
172
Thunderstorm days/yr
18
Summer density alt
1,033 ft

Flight category by month

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDec
VFRMVFRIFRLIFR
KGON monthly flight-category distribution, 2006–2025
MonthVFR %MVFR %IFR %LIFR %
Jan78.011.36.44.3
Feb78.010.17.24.7
Mar78.510.65.85.2
Apr76.111.15.77.0
May69.312.57.311.0
Jun71.012.87.58.7
Jul71.914.67.16.4
Aug79.212.35.33.2
Sep78.411.56.33.8
Oct77.214.06.12.7
Nov82.310.74.52.5
Dec75.712.27.54.7

Average wind by month

0510JanFebMarAprMayJunJulAugSepOctNovDec
KGON average wind by month, 2006–2025
MonthMean wind (kt)
Jan8.8 kt
Feb8.7 kt
Mar9.1 kt
Apr8.4 kt
May7.1 kt
Jun6.2 kt
Jul5.7 kt
Aug6.0 kt
Sep6.9 kt
Oct7.9 kt
Nov8.2 kt
Dec8.4 kt

Historical summary of past observations: not a forecast or safety rating. Always check the current METAR, TAF, and a weather briefing before flight.

KGON airport diagram

Official FAA taxiway and runway layout. Tap to zoom.

Official FAA airport diagram · d-TPP cycle 2611 · Not for navigation. Download the official FAA PDF ↗

Customize your GON shirt or mug

GON's real runway layout on the back, elevation and tower frequency on the front. Add your tail number on the sleeve.

Shop GON merch

Pilot PIREPs for Groton New London Airport (KGON)

Community-submitted

Community-submitted airport notes from pilots about runway conditions, wildlife, FBOs, fuel, turbulence, ramp access, and local tips.

Read recent community-submitted pilot notes for Groton New London Airport, including runway conditions, wildlife activity, FBO/fuel notes, turbulence, ramp access, and local airport tips.

⚠️ Pilot PIREPs on ATIS Alerts are community-submitted airport notes for situational awareness only. They are not official FAA PIREPs, NOTAMs, weather briefings, airport advisories, or flight-planning guidance. Always verify with official FAA/NWS sources, airport management, ATC, and current publications.

No Pilot PIREPs have been submitted for KGON yet. Recently flew here? Help the next pilot by leaving a quick airport note.

Pilot PIREPs are community pilot notes for situational awareness only, not official FAA PIREPs or advisories. Verify with official sources. Notes are moderated before they appear; helpful marks and reports help us keep them useful.

⚠️ Not for operational use. Always verify with official FAA-approved preflight weather sources before flight.

No D-ATIS at this airport, showing METAR.

Spotted incorrect airport info? ✏️ Suggest an edit

How ATIS Alerts works · All US airports · Connecticut airports