In total agreement with accepting your reading.
However, be very wary of wind multipliers.
There are multiple formulas available on the net.
The cumulus wiki example is very simple, it is based on a power law and has no compensating factor for what is known as roughness.
A more widely used formula is
V theoretical = V measured * Log e(Ideal Height/Roughness length )/Log e(Measured Height /Roughness length )
Where roughness length is based on degree and proximity of obstruction.
Table
Roughness Class Roughness Length m Landscape Type
0 0.0002 Water surface
0.5 0.0024 Open terrain, grass, concrete
1 0.03 Scattered buildings
1.5 0.055 8 metre obstructions within 1250 metres
2 0.1 8 metre obstructions within 500 metres
2.5 0.2 8 metre obstructions within 250 metres
3 0.4 Small towns
3.5 0.8 Cities
4 1.6 Large cities
The problem for most of us, our location is never ideal, more so the obstruction are not equally disposed around our anemometer(s).
In my own situation, my anemometers are placed at 3 metres, in the most open area of my property.
From the SW to SE, I have virtually no obstruction, so a roughness class of 1. This gives a multiplier of 1.26.
In contrast.
From the NE to NW, I have my own and neighbours trees (approx 10m, 30ft) within 10m. This would give a multiplier of between 1.6 and 1.9.
Between these extremes, I have varying degrees of obstruction.
There is no size fits all.
Also if you are just using a console or gateway, you only have 1 multiplier available.
As mentioned in the cumulus wiki, wind gusts don't obey the rules.
Personally, I'd stick with what you have, but by all means experiment. After all, it's your device