Current Weather
Raw METAR
Clouds - Visual Profile
Weather Briefing
VFRCalaveras Co Maury Rasmussen Field is currently reporting visual flight rules (VFR) conditions with broken clouds at 4,200 feet and 10 SM visibility. Note: This observation is 5.5 hours old and conditions may have changed.
Wind Analysis
Winds are from the southeast (140°) at 10 knots. Runway 13/31 is favored with a 10-knot headwind and 2-knot crosswind component.
Visibility & Ceiling
Visibility is 10 SM. The ceiling is 4200 feet AGL (broken), well above standard VFR minimums.
Temperature & Moisture
Temperature is 10°C (50°F) with a dewpoint of 7°C. The narrow temperature-dewpoint spread suggests high humidity and potential for visibility restrictions, especially during cooling periods.
Pilot Recommendations
Conditions are favorable for visual flight. The narrow temperature-dewpoint spread creates risk of fog formation, particularly during evening and early morning hours.
This briefing is generated from real-time METAR and TAF data. Always verify with official sources before flight.
24-Hour Weather Evolution
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Airport Runway Layout
Runway Information
| Runway | Length | Width | Surface | Heading | Wind Component |
|---|---|---|---|---|---|
|
✈️ 13/31
Active: 13
|
3,603 ft | 60 ft | ASP | 146° |
↑ 9.8 kt
•
↔ 1.7 kt
10° angle
|
Weather Statistics - KCPU
13,932 observations | Sep 2025 - Apr 2026Flight Rules Distribution
Calaveras Co Maury Rasmussen Field enjoys predominantly VFR conditions, with visual flight rules prevailing 81.7% of the time. Prevailing winds are from the S averaging 5.9 knots, with gusts recorded up to 32 knots. Calm conditions occur 36.4% of the time. Temperature extremes range from -1°C to 36°C, reflecting significant seasonal variation. The best months for VFR flying are March, September, April.
Wind Analysis
Temperature Range
Visibility
Best Months for VFR
Runway Wind Analysis
Statistics computed from 13,932 METAR observations (Sep 2025 - Apr 2026). Data sourced from official aviation weather services. Updated daily.
Calaveras Co Maury Rasmussen Field - Airport Information
Airport Details
Location
Runway Information
Flight Planning Tools
Nearby Airports
About Calaveras Co Maury Rasmussen Field
Calaveras Co Maury Rasmussen Field (KCPU) is located in San Andreas, US at an elevation of 1,325 feet MSL. The airport has 1 runway (13/31), with the longest at 3,603 feet.
Weather Profile
Analysis of 13,932 weather observations shows KCPU maintains VFR conditions 81.7% of the time, with marginal VFR accounting for 6.7% and IFR/LIFR conditions present in 11.5% of reports. Fog affects the airport in approximately 7.7% of observations, with visibility dropping below 3 statute miles 0.9% of the time.
Wind Patterns & Runway Selection
Prevailing winds at KCPU come from the S (180°) with an average speed of 5.9 knots and recorded gusts up to 32 knots. Calm wind conditions are common (36.4% of observations), allowing flexible runway selection. Runway 13/31 offers the lowest average crosswind component at 2.8 knots, making it the preferred choice in typical wind conditions.
Seasonal Considerations
The best months for VFR operations are March, September, April, when clear skies are most prevalent. Temperatures at the field range from -1°C (30°F) to 36°C (97°F), averaging 12.9°C (55°F). High temperatures can significantly impact aircraft performance through increased density altitude. Altimeter settings typically range from 29.49 to 30.52 inHg (999-1034 hPa).
Data Sources: Airport data from OurAirports.com. Weather statistics derived from 13,932 official METAR observations (Sep 2025 - Apr 2026). Pilots should always verify current conditions through official channels before flight.
Learn More
Recommended guides based on current conditions at KCPU
Official Data Sources
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.