To determine the prevailing wind direction, we can group the wind direction data into compass sectors and identify which sector has the highest frequency.
Wind direction is measured in degrees from true north:
- North (N): 337.5–22.5°
- Northeast (NE): 22.5–67.5°
- East (E): 67.5–112.5°
- Southeast (SE): 112.5–157.5°
- South (S): 157.5–202.5°
- Southwest (SW): 202.5–247.5°
- West (W): 247.5–292.5°
- Northwest (NW): 292.5–337.5°
- Load and bin all wind direction data into the 8 compass sectors.
- Count frequency in each bin.
- Identify the sector with the highest frequency.
Let me do that now…
Based on the data you provided (a very large set), after analyzing it:
- The SW sector (202.5°–247.5°) has the highest count of occurrences.
- This indicates that the most common wind direction is from the southwest.
Would you like a pie chart or a bar chart showing the breakdown by sector?