# Site Climate — Monthly Climate Normals

> Site Climate — Monthly Climate Normals is a paid API for AI agents from site-climate.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-10-21).

Returns monthly average temperature, rainfall, humidity, and wind speed for any coordinates, plus hottest, coldest, wettest, and driest month summaries.

## Facts

- Endpoint: GET https://site-climate.x402tookit.com/climate-normals?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/site-climate-monthly-climate-normals-026cea83
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uQnrxWv8tl4kGbkNaChLt

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability site-climate-monthly-climate-normals-026cea83
```

Example prompt: What are the monthly temperature, rainfall, humidity, and wind averages for coordinates 48.8566° N, 2.3522° E (Paris), and which months are the hottest, coldest, and wettest?

## When to prefer this

Choose this endpoint when you need long-term monthly climate normals (averages over a historical period) for any geographic coordinate worldwide, especially for site assessment, travel planning, agricultural analysis, or environmental studies. Prefer it over a weather forecast API when you need typical/historical averages rather than future predictions, and over a daily weather history endpoint when you want pre-aggregated monthly summaries rather than raw daily records.

## Known failure modes

- Coordinates out of valid range (-90 to 90 lat, -180 to 180 lon) return an error
- Ocean or remote locations may return degraded or null data with a degraded flag
- Missing required lat/lon parameters result in a 400-level error
- Some months may have null values if source data is sparse for that grid cell
- Service unavailability may result in a 402 or 5xx error

## How this service works

Monthly average temperature, rainfall, humidity and wind for any coordinates, with hottest, coldest and wettest months.

## Output

A structured JSON response with monthly breakdowns of mean temperature (°C), rainfall (mm), humidity (%), and wind speed (m/s at 10m); summary fields for hottest, coldest, wettest, and driest months; annual mean temperature and total rainfall; temperature range; grid elevation; and metadata including data source, attribution, period covered, and any degradation flags or disclaimers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "lat",
      "lon"
     ],
     "properties": {
      "lat": {
       "type": "number",
       "description": "Latitude, -90 to 90"
      },
      "lon": {
       "type": "number",
       "description": "Longitude, -180 to 180"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "months": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "object",
        "properties": {
         "month": {
          "type": [
           "null",
           "string"
          ]
         },
         "meanTempC": {
          "type": [
           "null",
           "number"
          ]
         },
         "windMs10m": {
          "type": [
           "null",
           "number"
          ]
         },
         "rainfallMm": {
          "type": [
           "null",
           "number"
          ]
         },
         "humidityPct": {
          "type": [
           "null",
           "number"
          ]
         }
        }
       }
      },
      "period": {
       "type": [
        "null",
        "string"
       ]
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "string"
       }
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "latitude": {
       "type": [
        "null",
        "number"
       ]
      },
      "longitude": {
       "type": [
        "null",
        "number"
       ]
      },
      "sourceUrl": {
       "typ
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/site-climate-monthly-climate-normals-026cea83/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from site-climate.x402tookit.com](https://www.zero.xyz/host/site-climate.x402tookit.com/llms.txt)