Stockholm · 21 september 2026 · källa

Bondepraktikan

Rådata från verktyget get_almanac_data.

{
  "toolName": "get_almanac_data",
  "data": {
    "marker_day_name": "Matteusdagen",
    "rules": [
      {
        "rule_text": "Matteusdagen stänger sommaren – köld nu ger kall vinter.",
        "horizon": "season",
        "scientific_basis": false,
        "source_url": "https://tjornbo.se/bondepraktikan/manaderna/september-enligt-bondepraktikan/"
      }
    ],
    "monthly_rules": [],
    "phenology_rules": [
      {
        "species_name": "Grus grus",
        "rule_text": "Tranan varslar vårens ankomst – kommer hon tidigt blir sommaren lång och varm.",
        "horizon": "season",
        "scientific_basis": false,
        "timing": "sen",
        "observed_date": "2026-08-01",
        "location": "Upplands-Bro, Stockholm",
        "source_type": "traditional_proverb"
      }
    ],
    "marker_day_history": {
      "temp_type": "daily_mean",
      "station_name": "Stockholm-Observatoriekullen A",
      "day": 21,
      "month": 9,
      "years_of_data": 167,
      "avg_mean_temp_c": 10.9,
      "median_mean_temp_c": 11,
      "min_mean_temp_c": 3.5,
      "min_mean_temp_year": 1883,
      "max_mean_temp_c": 18.1,
      "max_mean_temp_year": 2023,
      "rain_probability_pct": 48,
      "avg_precip_mm": 2,
      "max_precip_mm": 44,
      "max_precip_year": 2014
    }
  },
  "city": "Stockholm",
  "date": "2026-09-21"
}