[
  {
    "label": "New York",
    "lat": 40.78, "lon": -73.97,
    "tz": "America/New_York",
    "settlement_source": "EXAMPLE ONLY: copy the source named in YOUR contract's rules",
    "contracts": [
      {"metric": "temperature_f", "op": "above", "threshold": 90, "note": "daily high above 90 F"}
    ]
  },
  {
    "label": "Chicago",
    "lat": 41.79, "lon": -87.75,
    "tz": "America/Chicago",
    "settlement_source": "EXAMPLE ONLY: copy the source named in YOUR contract's rules",
    "contracts": [
      {"metric": "temperature_f", "op": "below", "threshold": 32, "note": "daily low below 32 F"}
    ]
  },
  {
    "label": "Miami",
    "lat": 25.79, "lon": -80.32,
    "tz": "America/New_York",
    "contracts": [
      {"metric": "temperature_f", "op": "above", "threshold": 85, "note": "daily high above 85 F"}
    ]
  }
]