Fix #833

[aaronspring]

Description

Closes #833

[codecov]

Codecov Report

Merging #835 (1f491d8) into main (dafd1f3) will decrease coverage by 2.08%.
Report is 75 commits behind head on main.
The diff coverage is 90.68%.

@@            Coverage Diff             @@
##             main     #835      +/-   ##
==========================================
- Coverage   93.80%   91.73%   -2.08%     
==========================================
  Files          59       59              
  Lines        6235     6246      +11     
==========================================
- Hits         5849     5730     -119     
- Misses        386      516     +130     

Files	Coverage Δ
climpred/__init__.py	100.00% <100.00%> (ø)
climpred/conftest.py	96.18% <100.00%> (-1.80%)	⬇️
climpred/graphics.py	83.81% <100.00%> (-12.17%)	⬇️
climpred/horizon.py	96.55% <ø> (ø)
climpred/logging.py	90.90% <100.00%> (-9.10%)	⬇️
climpred/metrics.py	91.82% <100.00%> (+0.09%)	⬆️
climpred/options.py	81.48% <ø> (ø)
climpred/prediction.py	91.75% <100.00%> (-1.30%)	⬇️
climpred/reference.py	96.90% <100.00%> (-1.53%)	⬇️
climpred/stats.py	84.88% <100.00%> (+1.35%)	⬆️
... and 32 more

... and 1 file with indirect coverage changes