Can someone explain why the “Total for the day” precipitation value in the Apple Weather app never matches the detailed “Precipitation Totals” shown on the same screen? For example, for my location tomorrow, the app shows a Total for the day of 0.6" with some snow expected. But the Precipitation Totals section lists 4–5" of snow and 0.1" of wintry mix. These numbers don’t align—what am I missing?
iPhone 15, iOS 18
ChatGPT says:
Here’s the breakdown:
1. “Total for the day” = Liquid equivalent
Apple reports precipitation totals in inches of liquid water, regardless of whether the sky drops rain, snow, hail, or frozen mystery bits.
So 0.6” is the amount of water you’d have if all the day’s snow and sleet melted.
2. “Precipitation Totals” for snow = Depth of snow, not liquid
Snow is fluffy (well, usually), so 4–5 inches of snow does NOT equal 4–5 inches of water.
Typical conversion:
Given your numbers:
ChatGPT says:
Here’s the breakdown:
1. “Total for the day” = Liquid equivalent
Apple reports precipitation totals in inches of liquid water, regardless of whether the sky drops rain, snow, hail, or frozen mystery bits.
So 0.6” is the amount of water you’d have if all the day’s snow and sleet melted.
2. “Precipitation Totals” for snow = Depth of snow, not liquid
Snow is fluffy (well, usually), so 4–5 inches of snow does NOT equal 4–5 inches of water.
Typical conversion:
Given your numbers:
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Inconsistent precipitation data in Apple Weather—am I reading this wrong?
