What is the difference between partly cloudy and mostly sunny?
Believe it or not, there is a difference. It relates to the average amount of cloud cover expected. Would you believe partly sunny means more cloud cover than partly cloudy? Can be confusing to the public...mostly sunny means more sun than partly cloudy does, while partly sunny means more clouds than partly cloudy does. Anyway, from least cloud cover to most, the scale is: sunny, mostly sunny, partly cloudy, partly sunny, mostly cloudy, cloudy. Mostly sunny means more sun than clouds, partly sunny means more clouds than sun, and partly cloudy generally means an equal amount of clouds and sun.
Partly Sunny and partly cloudy are synonyms. The only difference is that partly sunny is used for daytime clouds, and partly cloudy is used for night and/or day. They both mean the same thing, over all. That, up there, that answer is wrong. Partly sunny means some sun. Partly cloudy means some clouds. They are not the some thing!
In terms of the weather and sky conditions what is the difference between mostly clear and partly clear?
Sunny, Mostly Sunny, Partly Sunny, Partly Cloudy, Overcast, Mostly Cloudy, Cloudy, Breezy, Windy, Gusty, Fog, Showers, Rain Showers, Rain, Drizzle, Light Rain, Moderate Rain, Heavy Rain, Thunderstorm, Thundershower, Heavy Thunderstorm, Snow, Light Snow, and Heavy Snow. You can also use scattered or isolated to tell where. In severe weather such as tornados, fires, floods, droughts, dust storms, blizzards, and earthquakes, you need to take cover (seek shelter).
Weather is associated with both kinds of fronts, just different kinds of weather. A warm front will typically have increasing temperatures, partly to mostly cloudy skies with low cloud base heights and sometimes a gentle, uniform rainfall. A cold front will typically have decreasing temperatures, partly to mostly cloudy skies with moderate to high cloud base heights, and sometimes heavy, showery rain.