Fix bugs related to cache-only pulling of weather data

[ssuffian]

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• [x] Make sure you are requesting to pull a feature/bugfix branch (right side). Don't request your master!
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Description

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[codecov[bot]]

Codecov Report

Merging #44 into master will not change coverage. The diff coverage is 100%.

@@          Coverage Diff          @@
##           master    #44   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files          32     32           
  Lines        2630   2656   +26     
=====================================
+ Hits         2630   2656   +26

Impacted Files	Coverage Δ
eeweather/ranking.py	100% <ø> (ø)	:arrow_up:
eeweather/stations.py	100% <100%> (ø)	:arrow_up:
tests/test_stations.py	100% <100%> (ø)	:arrow_up:
tests/snapshots/snap_test_ranking.py	100% <100%> (ø)	:arrow_up:

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