diff --git a/scripts/run_historical_adsb_action.py b/scripts/run_historical_adsb_action.py
new file mode 100644
index 0000000..18c93f3
--- /dev/null
+++ b/scripts/run_historical_adsb_action.py
@@ -0,0 +1,175 @@
+#!/usr/bin/env python3
+"""
+Script to trigger historical-adsb workflow runs in 1-month chunks. Since github actions does not do well with downloading many artifacts for adsb-reduce
+
+Usage:
+    python scripts/run_historical_adsb_action.py --start-date 2025-01-01 --end-date 2025-06-01
+"""
+
+import argparse
+import subprocess
+import sys
+from datetime import datetime, timedelta
+
+
+def add_months(date, months):
+    """Add months to a date, handling month/year overflow."""
+    month = date.month + months
+    year = date.year + month // 12
+    month = month % 12
+    if month == 0:
+        month = 12
+        year -= 1
+    
+    # Handle day overflow (e.g., Jan 31 + 1 month = Feb 28/29)
+    day = min(date.day, [31, 29 if year % 4 == 0 and (year % 100 != 0 or year % 400 == 0) else 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31][month - 1])
+    
+    return date.replace(year=year, month=month, day=day)
+
+
+def generate_monthly_chunks(start_date_str, end_date_str):
+    """Generate monthly date ranges from start to end date."""
+    start_date = datetime.strptime(start_date_str, '%Y-%m-%d')
+    end_date = datetime.strptime(end_date_str, '%Y-%m-%d')
+    
+    chunks = []
+    current = start_date
+    
+    while current < end_date:
+        # Calculate end of current chunk (start of next month)
+        chunk_end = add_months(current, 1)
+        
+        # Don't go past the global end date
+        if chunk_end > end_date:
+            chunk_end = end_date
+        
+        chunks.append({
+            'start': current.strftime('%Y-%m-%d'),
+            'end': chunk_end.strftime('%Y-%m-%d')
+        })
+        
+        current = chunk_end
+    
+    return chunks
+
+
+def trigger_workflow(start_date, end_date, chunk_days=7, branch='main', dry_run=False):
+    """Trigger the historical-adsb workflow via GitHub CLI."""
+    cmd = [
+        'gh', 'workflow', 'run', 'historical-adsb.yaml',
+        '--ref', branch,
+        '-f', f'start_date={start_date}',
+        '-f', f'end_date={end_date}',
+        '-f', f'chunk_days={chunk_days}'
+    ]
+    
+    if dry_run:
+        print(f"[DRY RUN] Would run: {' '.join(cmd)}")
+        return True
+    
+    print(f"Triggering workflow: {start_date} to {end_date} (on {branch})")
+    result = subprocess.run(cmd, capture_output=True, text=True)
+    
+    if result.returncode == 0:
+        print(f"✓ Successfully triggered workflow for {start_date} to {end_date}")
+        return True
+    else:
+        print(f"✗ Failed to trigger workflow for {start_date} to {end_date}")
+        print(f"Error: {result.stderr}")
+        return False
+
+
+def main():
+    parser = argparse.ArgumentParser(
+        description='Trigger historical-adsb workflow runs in monthly chunks'
+    )
+    parser.add_argument(
+        '--start-date',
+        required=True,
+        help='Start date in YYYY-MM-DD format (inclusive)'
+    )
+    parser.add_argument(
+        '--end-date',
+        required=True,
+        help='End date in YYYY-MM-DD format (exclusive)'
+    )
+    parser.add_argument(
+        '--chunk-days',
+        type=int,
+        default=7,
+        help='Days per job chunk within each workflow run (default: 7)'
+    )
+    parser.add_argument(
+        '--branch',
+        type=str,
+        default='main',
+        help='Branch to run the workflow on (default: main)'
+    )
+    parser.add_argument(
+        '--dry-run',
+        action='store_true',
+        help='Print commands without executing them'
+    )
+    parser.add_argument(
+        '--delay',
+        type=int,
+        default=5,
+        help='Delay in seconds between workflow triggers (default: 5)'
+    )
+    
+    args = parser.parse_args()
+    
+    # Validate dates
+    try:
+        start = datetime.strptime(args.start_date, '%Y-%m-%d')
+        end = datetime.strptime(args.end_date, '%Y-%m-%d')
+        if start >= end:
+            print("Error: start_date must be before end_date")
+            sys.exit(1)
+    except ValueError as e:
+        print(f"Error: Invalid date format - {e}")
+        sys.exit(1)
+    
+    # Generate monthly chunks
+    chunks = generate_monthly_chunks(args.start_date, args.end_date)
+    
+    print(f"\nGenerating {len(chunks)} monthly workflow runs on branch '{args.branch}':")
+    for i, chunk in enumerate(chunks, 1):
+        print(f"  {i}. {chunk['start']} to {chunk['end']}")
+    
+    if not args.dry_run:
+        response = input(f"\nProceed with triggering {len(chunks)} workflows on '{args.branch}'? [y/N]: ")
+        if response.lower() != 'y':
+            print("Cancelled.")
+            sys.exit(0)
+    
+    print()
+    
+    # Trigger workflows
+    import time
+    success_count = 0
+    
+    for i, chunk in enumerate(chunks, 1):
+        print(f"\n[{i}/{len(chunks)}] ", end='')
+        
+        if trigger_workflow(
+            chunk['start'],
+            chunk['end'],
+            chunk_days=args.chunk_days,
+            branch=args.branch,
+            dry_run=args.dry_run
+        ):
+            success_count += 1
+        
+        # Add delay between triggers (except for last one)
+        if i < len(chunks) and not args.dry_run:
+            time.sleep(args.delay)
+    
+    print(f"\n\nSummary: {success_count}/{len(chunks)} workflows triggered successfully")
+    
+    if success_count < len(chunks):
+        sys.exit(1)
+
+
+if __name__ == '__main__':
+    main()