akvo / eswatini-droughtmap-hub / #213

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coveralls-python

[#222] Fix temperature ordering by enforcing minimum spread before rounding

Ensure tmin < tmean < tmax holds on stored values by rounding temperatures
first, then enforcing a minimum 0.1°C spread (one rounding step). Previously,
abs() kept unrounded draws apart, but spreads under 0.05°C could round to the
same tenth, causing tmin == tmean in storage. Test now runs multiple seeds
since the window is today-relative and a single seed only has ~33% chance of
catching rounding collisions.

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