{
 "slug": "precipitation-in-london-in-september",
 "title": "Precipitation in London in September?",
 "url": "https://polymarkettrader.com/odds/precipitation-in-london-in-september/",
 "polymarket_url": "https://polymarket.com/event/precipitation-in-london-in-september",
 "category": "tech",
 "closed": false,
 "updated": "2026-09-24T17:47:06+00:00",
 "end_date": "2026-12-08T04:59:00+00:00",
 "volume": 26613.26,
 "volume_24h": 813.73,
 "liquidity": 4843.9,
 "outcomes": [
  {
   "name": "30-40mm",
   "probability": 0.495,
   "change_24h": 0.04,
   "volume": 2412.58,
   "closed": false
  },
  {
   "name": "<30mm",
   "probability": 0.32,
   "change_24h": -0.025,
   "volume": 16541.81,
   "closed": false
  },
  {
   "name": "40-50mm",
   "probability": 0.154,
   "change_24h": 0.004,
   "volume": 3563.29,
   "closed": false
  },
  {
   "name": "50-60mm",
   "probability": 0.0395,
   "change_24h": 0.0105,
   "volume": 1722.62,
   "closed": false
  },
  {
   "name": "80mm+",
   "probability": 0.031,
   "change_24h": 0.0225,
   "volume": 394.1,
   "closed": false
  },
  {
   "name": "60-70mm",
   "probability": 0.025,
   "change_24h": -0.0055,
   "volume": 1591.02,
   "closed": false
  },
  {
   "name": "70-80mm",
   "probability": 0.0025,
   "change_24h": null,
   "volume": 387.83,
   "closed": false
  }
 ],
 "history": {
  "30-40mm": [
   [
    1788220829,
    0.175
   ],
   [
    1788264019,
    0.245
   ],
   [
    1788307217,
    0.23
   ],
   [
    1788350435,
    0.175
   ],
   [
    1788393621,
    0.305
   ],
   [
    1788436820,
    0.27
   ],
   [
    1788480017,
    0.075
   ],
   [
    1788523217,
    0.095
   ],
   [
    1788566417,
    0.055
   ],
   [
    1788609619,
    0.16
   ],
   [
    1788652823,
    0.04
   ],
   [
    1788696017,
    0.11
   ],
   [
    1788739231,
    0.165
   ],
   [
    1788782418,
    0.23
   ],
   [
    1788825615,
    0.275
   ],
   [
    1788868818,
    0.265
   ],
   [
    1788912023,
    0.26
   ],
   [
    1788955220,
    0.26
   ],
   [
    1788998417,
    0.275
   ],
   [
    1789041617,
    0.27
   ],
   [
    1789084819,
    0.275
   ],
   [
    1789128020,
    0.23
   ],
   [
    1789171219,
    0.245
   ],
   [
    1789214420,
    0.235
   ],
   [
    1789257618,
    0.275
   ],
   [
    1789300821,
    0.275
   ],
   [
    1789344015,
    0.245
   ],
   [
    1789387214,
    0.285
   ],
   [
    1789430414,
    0.27
   ],
   [
    1789473615,
    0.3
   ],
   [
    1789516816,
    0.255
   ],
   [
    1789560021,
    0.225
   ],
   [
    1789603216,
    0.27
   ],
   [
    1789646416,
    0.24
   ],
   [
    1789689620,
    0.155
   ],
   [
    1789732820,
    0.125
   ],
   [
    1789776020,
    0.23
   ],
   [
    1789819220,
    0.225
   ],
   [
    1789862419,
    0.205
   ],
   [
    1789905617,
    0.275
   ],
   [
    1789948816,
    0.345
   ],
   [
    1789992012,
    0.46
   ],
   [
    1790035217,
    0.435
   ],
   [
    1790078416,
    0.455
   ],
   [
    1790121618,
    0.455
   ],
   [
    1790164823,
    0.455
   ],
   [
    1790208029,
    0.455
   ],
   [
    1790251218,
    0.44
   ],
   [
    1790272631,
    0.495
   ]
  ],
  "<30mm": [
   [
    1788220827,
    0.18
   ],
   [
    1788264017,
    0.08
   ],
   [
    1788307215,
    0.055
   ],
   [
    1788350432,
    0.115
   ],
   [
    1788393619,
    0.125
   ],
   [
    1788436817,
    0.225
   ],
   [
    1788480016,
    0.31
   ],
   [
    1788523215,
    0.245
   ],
   [
    1788566416,
    0.26
   ],
   [
    1788609617,
    0.205
   ],
   [
    1788652822,
    0.275
   ],
   [
    1788696015,
    0.295
   ],
   [
    1788739230,
    0.27
   ],
   [
    1788782416,
    0.205
   ],
   [
    1788825614,
    0.21
   ],
   [
    1788868817,
    0.265
   ],
   [
    1788912021,
    0.265
   ],
   [
    1788955218,
    0.27
   ],
   [
    1788998416,
    0.265
   ],
   [
    1789041616,
    0.245
   ],
   [
    1789084817,
    0.22
   ],
   [
    1789128018,
    0.225
   ],
   [
    1789171217,
    0.225
   ],
   [
    1789214418,
    0.235
   ],
   [
    1789257616,
    0.22
   ],
   [
    1789300820,
    0.205
   ],
   [
    1789344014,
    0.215
   ],
   [
    1789387213,
    0.21
   ],
   [
    1789430413,
    0.38
   ],
   [
    1789473614,
    0.205
   ],
   [
    1789516815,
    0.45
   ],
   [
    1789560018,
    0.48
   ],
   [
    1789603215,
    0.465
   ],
   [
    1789646415,
    0.485
   ],
   [
    1789689618,
    0.675
   ],
   [
    1789732818,
    0.63
   ],
   [
    1789776018,
    0.58
   ],
   [
    1789819218,
    0.605
   ],
   [
    1789862418,
    0.615
   ],
   [
    1789905615,
    0.615
   ],
   [
    1789948814,
    0.385
   ],
   [
    1789992011,
    0.365
   ],
   [
    1790035215,
    0.395
   ],
   [
    1790078415,
    0.33
   ],
   [
    1790121616,
    0.37
   ],
   [
    1790164820,
    0.325
   ],
   [
    1790208027,
    0.375
   ],
   [
    1790251217,
    0.32
   ],
   [
    1790272693,
    0.31
   ]
  ],
  "40-50mm": [
   [
    1788220836,
    0.175
   ],
   [
    1788264026,
    0.19
   ],
   [
    1788307223,
    0.2
   ],
   [
    1788350443,
    0.2
   ],
   [
    1788393628,
    0.2
   ],
   [
    1788436828,
    0.2
   ],
   [
    1788480020,
    0.215
   ],
   [
    1788523221,
    0.215
   ],
   [
    1788566421,
    0.205
   ],
   [
    1788609624,
    0.185
   ],
   [
    1788652827,
    0.17
   ],
   [
    1788696021,
    0.235
   ],
   [
    1788739235,
    0.28
   ],
   [
    1788782423,
    0.27
   ],
   [
    1788825617,
    0.255
   ],
   [
    1788868821,
    0.07
   ],
   [
    1788912026,
    0.13
   ],
   [
    1788955224,
    0.17
   ],
   [
    1788998421,
    0.18
   ],
   [
    1789041621,
    0.17
   ],
   [
    1789084823,
    0.15
   ],
   [
    1789128025,
    0.245
   ],
   [
    1789171224,
    0.245
   ],
   [
    1789214425,
    0.19
   ],
   [
    1789257622,
    0.26
   ],
   [
    1789300826,
    0.205
   ],
   [
    1789344019,
    0.19
   ],
   [
    1789387217,
    0.2
   ],
   [
    1789430418,
    0.19
   ],
   [
    1789473618,
    0.145
   ],
   [
    1789516819,
    0.13
   ],
   [
    1789560029,
    0.115
   ],
   [
    1789603221,
    0.115
   ],
   [
    1789646421,
    0.055
   ],
   [
    1789689624,
    0.0205
   ],
   [
    1789732825,
    0.0445
   ],
   [
    1789776026,
    0.0445
   ],
   [
    1789819226,
    0.052
   ],
   [
    1789862425,
    0.0715
   ],
   [
    1789905622,
    0.0815
   ],
   [
    1789948821,
    0.104
   ],
   [
    1789992016,
    0.148
   ],
   [
    1790035222,
    0.158
   ],
   [
    1790078421,
    0.0995
   ],
   [
    1790121624,
    0.1375
   ],
   [
    1790164834,
    0.1455
   ],
   [
    1790208034,
    0.1515
   ],
   [
    1790251224,
    0.153
   ],
   [
    1790272696,
    0.154
   ]
  ]
 },
 "license": "CC BY 4.0",
 "license_url": "https://creativecommons.org/licenses/by/4.0/",
 "attribution": {
  "required": true,
  "text": "Odds data: PolymarketTrader.com",
  "url": "https://polymarkettrader.com/odds/precipitation-in-london-in-september/",
  "html": "<a href=\"https://polymarkettrader.com/odds/precipitation-in-london-in-september/\">Odds data: PolymarketTrader.com</a>"
 },
 "source": "Polymarket public Gamma and CLOB APIs; not affiliated with Polymarket."
}
