This is really great data! Thank you for collecting it and sharing the results. I would make a couple of observations based on this better quality information:
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The sim is not correctly interpreting METAR winds. If winds are reported as 19017G28KT, the plots show that the sim is creating a varying wind between a minimum of 17 knots and a maximum of 28 knots. That is incorrect. 17 knots is the average wind speed (over a 2 minute interval in the US METAR standard), and 28 knots is the maximum wind gust (recorded over a 10 minute interval in the US). In order for 17 knots to be the average, there would need to be lulls where the wind speed drops below 17 knots.
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Gusts to near the maximum reported value seem excessively frequent. Over the course of three minutes, the charts show several gusts to at least 27 knots (within 1 knot of the 10 minute maximum).
I spent a little while searching for high-resolution real-world wind data to compare, and I found a couple of interesting academic papers. The following plot shows an example of wind speed measured over a 10-minute interval with the peak gust highlighted:
This comes from a 2022 paper in Applied Sciences entitled “Characterization of Wind Gusts: A Study Based on Meteorological Tower Observations” by Yan, Chan, et al. In this case, the 10-minute maximum gust was a clear outlier, with other gusts of widely varying magnitudes throughout the 10 minute period.
The same paper also includes the following histograms showing the relative frequency of a variety of wind speed parameters (including gusts and gust amplitudes) in observed data. The histograms show that gusts tend to follow a distribution with small gusts more common and large gusts less common:
