John C. Munro Hamilton International Airport

CYHM / YHM

Hamilton, CA

Last Updated
Mar 5, 07:00Z

Current Weather

Display Units
Fresh 23 min ago
07:00Z

☀️ Day
VFR
Flight Rules
1°C
Temperature
Dewpoint: -1°C
9 kt
30°
8 SM
Visibility
10,000 ft
Ceiling
Above Ground Level
1020 hPa
QNH
Altimeter Setting

Raw METAR

METAR CYHM 050700Z 03009KT 8SM OVC100 01/M01 A3013 RMK AC8 SLP210

Clouds - Visual Profile

12,000ft
9,000ft
6,000ft
3,000ft
Ground
Field Elev: 780 ft
OVC 10,000 ft AGL
☁️
OVC
Overcast (8/8 sky coverage)
10,000 ft
AGL (Above Ground)
10,780 ft AMSL
QNH
1020 hPa
Sea Level Pressure
For altitude above MSL
QFE
994 hPa
Field Pressure
Height above aerodrome (780 ft)
Pressure Alt
578 ft
QNE Reference
Standard: 1013 hPa
Density Altitude: -915 ft
ISA Deviation: -12.4°C

Forecast (TAF)

View Full TAF
Raw TAF
TAF CYHM 050540Z 0506/0606 03010KT P6SM BKN100 TEMPO 0506/0513 3SM BR FEW002 PROB30 0507/0513 1/2SM FZFG VV002 FM051300 03015KT P6SM BKN004 OVC040 FM051600 04015KT 6SM -RA -DZ BR OVC004 PROB30 0518/0602 2SM -FZRA BR FM060200 04015KT 1/2SM -DZ FG VV002 PROB30 0602/0606 1/4SM -FZDZ FG RMK NXT FCST BY 051200Z
Upcoming Changes (Next 12 Hours)
07:22Z BASE
+0h
VFR 30° 10 kt
Visibility: >6SM
Ceiling: 10,000 ft
13:00Z FM051300
+6h
LIFR 30° 15 kt
Visibility: >6SM
Ceiling: 400 ft
16:00Z FM051600
+9h
LIFR 40° 15 kt
Visibility: 6SM
Ceiling: 400 ft
Light Rain, Light Drizzle, Mist
18:00Z PROB30
+11h
IFR
Visibility: 2SM
Light Freezing Rain, Mist

24-Hour Weather Evolution

Loading weather data...
Data Sources
  • • Current conditions from METAR observations
  • • Historical data from past 24 hours
  • • No forecast or predicted data included
  • • Data updated with each new METAR report
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Note: Future values beyond current TAF validity are estimates based on climatological data and trends. Always verify with current forecasts before flight operations.

Airport Runway Layout

N
YHM
06 ✈️
24
12
30

Runway Information

Runway Length Width Surface Heading Wind Component
✈️ 06/24
Active: 06
6,010 ft 150 ft ASP 49°
7.8 kt 4.5 kt
30° angle
12/30 10,006 ft 200 ft ASP 107°
2.0 kt 8.8 kt
77° angle
🟢 Active Runway: Best headwind component for current conditions
⬆️ Headwind: Favorable wind component
↔️ Crosswind: ≤10kt Safe, 11-15kt Caution, >15kt Challenging

Weather Statistics - CYHM

4,957 observations | Sep 2025 - Mar 2026

Flight Rules Distribution

VFR
62.6%
MVFR
23.8%
IFR
8.2%
LIFR
5.5%

John C. Munro Hamilton International Airport typically experiences VFR conditions 62.6% of the time, though instrument-rated pilots will find IFR weather present approximately 13.7% of observations. Prevailing winds are from the SW averaging 9.5 knots, with gusts recorded up to 35 knots. Temperature extremes range from -25°C to 28°C, reflecting significant seasonal variation. The best months for VFR flying are October, March, September.

Wind Analysis

Prevailing Direction: SW (225°)
Average Speed: 9.5 kt
Maximum Recorded: 35 kt
Calm Winds: 1.1%
Direction Distribution:
N
7.9%
NE
13.7%
E
3.5%
SE
2%
S
12.7%
SW
32%
W
20.9%
NW
6.2%

Temperature Range

Average: 1°C
Range: -25°C to 28°C
-25°C 28°C

Visibility

Average: 11.9 SM
Below 3 SM: 4.2%
Fog Frequency: 6.9%

Best Months for VFR

October March September

Runway Wind Analysis

Runway 06/24
Favorable wind: 100%
Avg crosswind: 4 kt
Runway 12/30
Favorable wind: 100%
Avg crosswind: 7.5 kt

Statistics computed from 4,957 METAR observations (Sep 2025 - Mar 2026). Data sourced from official aviation weather services. Updated daily.

John C. Munro Hamilton International Airport - Airport Information

Airport Details

ICAO Code: CYHM
IATA Code: YHM
Type: medium airport
Status: active
Elevation: 780 ft MSL

Location

City: Hamilton
Country: CA
Latitude: 43.173599°
Longitude: -79.934998°
Time Zone: Etc/GMT+5

Runway Information

Runway 06/24
Length: 6,010 ft
Width: 150 ft
Surface: ASP
ILS: No
Runway 12/30
Length: 10,006 ft
Width: 200 ft
Surface: ASP
ILS: No

About John C. Munro Hamilton International Airport

Overview

John C. Munro Hamilton International Airport serves as a critical medium-sized airport located in Hamilton, Ontario, Canada. Situated at 780 feet above mean sea level with coordinates 43.173599, -79.934998, the airport provides important regional aviation infrastructure with two substantial asphalt runways capable of handling diverse aircraft operations.

Flying Conditions

Weather conditions at CYHM demonstrate significant variability, with visual flight rules (VFR) predominating at 64.5% of observed periods. Pilots should anticipate prevailing southwest winds averaging 9.6 knots, with temperature ranges extending from -17°C to 28°C. Seasonal visibility averages 12.2 statute miles, though periods of reduced visibility occur, with fog present in 5.8% of observations and conditions dropping below 3 statute miles in 3.7% of reports.

Notable Features

The airport features two parallel runways: 06/24 measuring 6,010 feet and 12/30 extending 10,006 feet, both constructed of asphalt surface. Both runways demonstrate 100% favorable wind alignment, with Runway 12/30 experiencing a slightly higher average crosswind of 7.6 knots compared to Runway 06/24's 4-knot average crosswind. September, October, and November consistently provide the most favorable visual flying conditions.

Approach Considerations

Pilots should plan approaches considering the prevailing southwest winds at 225 degrees. With wind speeds typically around 9.6 knots and potential gusts up to 35 knots, careful wind assessment is crucial during arrival and departure. The longer Runway 12/30 offers additional operational flexibility, particularly during variable wind conditions.

Data Sources & Accuracy: Airport information sourced from OurAirports.com, a collaborative database of worldwide airport data. Weather data from official aviation weather services including NOAA Aviation Weather Center and international METAR/TAF providers. Information is updated regularly but pilots should always verify current conditions and NOTAMs through official channels before flight operations.

Official Data Sources

Weather NOAA Aviation Weather Center • International METAR/TAF Network
Airports OurAirports.com • Public domain airport database
NOTAMs FAA NOTAM System • ICAO NOTAM Distribution
Last updated: Jan 1, 1970 12:00 AM UTC

Disclaimer: Data is provided for informational purposes only. Pilots must verify all information through official sources before flight operations. Weather conditions change rapidly; always obtain a current briefing from approved weather services.