shortcode to show F or C?

I’m using this shortcode:
[awesome-weather location=”Puerto Vallarta, MX” units=”C” owm_city_id=”3991328″ size=”tall” override_title=”Puerto Vallarta, MX” forecast_days=”5″ hide_stats=”0″ background=”http://x.jpg” custom_bg_color=”#cccccc” inline_style=”width: 450px; margin: 20px; float: left;” background_by_weather=”1″]

Works amazing, thank you!
But how can I show the letter C after the temperature?

https://wordpress.org/plugins/awesome-weather/