# Where can robots work the most days a year?

**Verdict:** Phoenix. Of the nine robot corridors scored against NOAA climate normals, Phoenix has the most estimated operating days at 340 a year (22 precipitation days, 0 snow days). Miami has the fewest, 230. The estimate is conservative: it counts a day out for any measurable precipitation, so the real operable figure is likely higher.

## The full comparison

| Corridor | Operating days | Precip days | Snow days | Jan low | Jul high | Basis |
|---|---|---|---|---|---|---|
| Phoenix | 340 | 22 | 0 | 46F | 107F | derived |
| LA West Side | 330 | 33 | 0 | 48F | 85F | derived |
| SF Core | 300 | 68 | 0 | 46F | 68F | derived |
| Austin | 280 | 82 | 0 | 38F | 97F | derived |
| Dallas-Fort Worth | 280 | 78 | 1 | 34F | 96F | derived |
| Alexandria, VA | 270 | 100 | 7 | 27F | 89F | derived |
| Chicago | 260 | 88 | 15 | 16F | 85F | derived |
| Atlanta | 260 | 107 | 1 | 33F | 89F | derived |
| Miami | 230 | 135 | 0 | 60F | 91F | derived |

## Method

Operating days = 365 minus precipitation days minus snow days. Source: NOAA 1991-2020 Climate Normals (published, public domain) (https://www.ncei.noaa.gov/products/land-based-station/us-climate-normals). The precipitation, snow, and temperature inputs are measured normals; the operating-days figure is a transparent derivation over them.

## Related answers

- [Which robot corridors have the best connectivity?](/which-robot-corridors-have-the-best-connectivity.md)
- [LA Westside robot operability](/la-westside-robot-operability.md)
- [Do US cities map where robots stage and charge?](/do-us-cities-map-where-robots-stage-and-charge.md)

_Derived from NOAA open data, not a reviewed DEPLOY registry record. canonical URL: /where-can-robots-work-the-most-days_