About the Visual Crossing Weather Calendar
Weather Calendar is a month-at-a-glance weather explorer powered by the Visual Crossing Timeline Weather API. It turns daily weather data into a color-scaled calendar so users can quickly spot hot/cold swings, wet periods, wind events, and cloud patterns for any location.
For each selected month and location, the component requests daily timeline data for the exact month start and end dates, then renders a full 7-column calendar.
Color can be mapped to one metric at a time: mean temperature, max temperature, min temperature, precipitation amount, precipitation probability, wind speed, or cloud cover.
Scale modes
- Absolute: colors represent the actual daily value.
- Relative: colors represent change from normal for that day, based on normal/statistical data returned with the timeline response.
Preview vs signed-in behavior
- Preview mode uses a timeline preview route and may return only a partial sample of days.
- Signed-in mode uses the authenticated timeline route and unlocks full-month coverage.
- Hidden preview days are shown in the calendar and can be clicked to open sign-in.
- Monthly summary text automatically indicates when stats are based on visible preview days only.
Displayed data includes
- Daily fields such as date, temperature, max/min temperature, precipitation, precipitation probability, wind speed, cloud cover, humidity, conditions, and icon.
- A selected-day detail panel with key daily metrics.
- A monthly statistics panel (mean temp, highest/lowest temp with dates, total precip, wettest day, average precip probability, average wind, windiest day, average cloud cover).
Quick instructions
- Enter a location (or use current location).
- Choose month, year, and units.
- Pick Color by and Scale to change the map.
- Tap/click any day to inspect details.
- Use the API Preview URL to see or copy the generated Timeline Weather API request.

