is it just that much data?

src/main/java/sensor2graph/Main.java

@@ -96,7 +96,7 @@ public class Main {
 	}
 
 	private static void run() throws Exception {
-		var tables = influxDBClient.getQueryApi().query("from(bucket:\"openforecast\") |> range(start: -600d, stop: -599d) |> mean() |> yield(name: \"_results\")");
+		var tables = influxDBClient.getQueryApi().query("from(bucket:\"openforecast\") |> range(start: -600d1m, stop: -600d) |> mean() |> yield(name: \"_results\")");
 		
 		System.out.println("starting influx query");
 		for (var fluxTable : tables) {