`jma_climate_normals`

Pack: jma · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/jma_climate_normals for the schema, then POST the same URL with its arguments for the data.

Official JMA climate normals (30-year averages, currently 1991-2020) for one station: for each month and the year, precipitation, mean temperature, mean daily max and min temperature, wind, sunshine and, where the station observes snow, snowfall total and mean annual-maximum snow depth. Use for questions like typical late-January snowfall or temperature at a resort. Takes a station name, station_id or block number. Sourced from the Japan Meteorological Agency, climate normals.

Parameters

Name	Type	Required	Description
`station`	string	yes	Station name (“Nozawa Onsen”), station_id (“48-0393”) or block number.
`prefecture`	string	no	Optional prefecture to disambiguate a station name.

Example call

Arguments

{
  "station": "Nozawa Onsen"
}

curl

curl -X POST https://gateway.pipeworx.io/jma/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"jma_climate_normals","arguments":{"station":"Nozawa Onsen"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('jma_climate_normals', {
  "station": "Nozawa Onsen"
});

More examples

{
  "station": "48-47610"
}

Response shape

Field	Type	Description
`found`	boolean	false when nothing matched; see reason
`reason`	string	Why nothing was returned
`data_as_of`	string	Date the data is current to (ISO)
`source`	string	Publisher and dataset
`notes`	string	Interpretation notes
`station_id`	string
`station_type`	string
`station_title`	string \| null
`normals_period`	string \| null	e.g. 1991-2020
`years_of_record`	array
`elements_present`	array
`months`	array
`candidates`	array

Full JSON Schema

{
  "type": "object",
  "properties": {
    "found": {
      "type": "boolean",
      "description": "false when nothing matched; see reason"
    },
    "reason": {
      "type": "string",
      "description": "Why nothing was returned"
    },
    "data_as_of": {
      "type": "string",
      "description": "Date the data is current to (ISO)"
    },
    "source": {
      "type": "string",
      "description": "Publisher and dataset"
    },
    "notes": {
      "type": "string",
      "description": "Interpretation notes"
    },
    "station_id": {
      "type": "string"
    },
    "station_type": {
      "type": "string"
    },
    "station_title": {
      "type": [
        "string",
        "null"
      ],
      "description": ""
    },
    "normals_period": {
      "type": [
        "string",
        "null"
      ],
      "description": "e.g. 1991-2020"
    },
    "years_of_record": {
      "type": "array",
      "items": {
        "type": "number"
      }
    },
    "elements_present": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "months": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "month": {
            "type": [
              "number",
              "string"
            ],
            "description": "1-12 or \"annual\""
          },
          "pressure_local_hpa": {
            "type": [
              "number",
              "null"
            ],
            "description": ""
          },
          "pressure_sea_level_hpa": {
            "type": [
              "number",
              "null"
            ],
            "description": ""
          },
          "precipitation_mm": {
            "type": [
              "number",
              "null"
            ],
            "description": "Monthly total"
          },
          "temp_mean_c": {
            "type": [
              "number",
              "null"
            ],
            "description": ""
          },
          "temp_daily_max_mean_c": {
            "type": [
              "number",
              "null"
            ],
            "description": ""
          },
          "temp_daily_min_mean_c": {
            "type": [
              "number",
              "null"
            ],
            "description": ""
          },
          "humidity_mean_pct": {
            "type": [
              "number",
              "null"
            ],
            "description": ""
          },
          "wind_mean_ms": {
            "type": [
              "number",
              "null"
            ],
            "description": ""
          },
          "sunshine_hours": {
            "type": [
              "number",
              "null"
            ],
            "description": ""
          },
          "snowfall_cm": {
            "type": [
              "number",
              "null"
            ],
            "description": "Monthly snowfall total"
          },
          "snow_depth_max_cm": {
            "type": [
              "number",
              "null"
            ],
            "description": "Mean of yearly maximum snow depth"
          },
          "snow_days": {
            "type": [
              "number",
              "null"
            ],
            "description": ""
          },
          "flags": {
            "type": "object",
            "additionalProperties": true
          }
        },
        "additionalProperties": true
      }
    },
    "candidates": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": true
      }
    }
  },
  "additionalProperties": true
}

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the jma pack

{
  "mcpServers": {
    "jma": {
      "url": "https://gateway.pipeworx.io/jma/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

jma_climate_normals