Strange symbols on lcd 2004 16x4

i got strange symbols on my lcd.Any ideas where they coming from?
A picture of my lcd :
my code :
#include <LiquidCrystal.h>
#include <DHT.h>

#define DHTPIN 6
#define DHTTYPE DHT22 //DHT11, DHT21, DHT22

DHT dht(DHTPIN, DHTTYPE);

LiquidCrystal lcd(12, 11, 10, 5, 4, 3, 2);
int backLight = 9; // pin 13 will control the backlight

void setup()
{
pinMode(backLight, OUTPUT); //set pin 13 as output
analogWrite(backLight, 254); //controls the backlight intensity 0-254
dht.begin();
lcd.begin(16,4); // columns, rows. size of display
lcd.clear(); // clear the screen
lcd.setCursor(0,0); // set cursor to column 0, row 0 (first row)
lcd.print(“Luftfeuchte:”); // input your text here
lcd.setCursor(0,1); // move cursor down one
lcd.print(“Temperatur:”); //input your text here
}

void loop()
{
float h = dht.readHumidity(); //Luftfeuchte auslesen
float t = dht.readTemperature(); //Temperatur auslesen
if (isnan(t) || isnan(h))
{
Serial.println(“DHT22 konnte nicht ausgelesen werden”);
}
else
{
lcd.setCursor(0,0);
lcd.print(“Luftfeuchte: “);
lcd.print(h);
lcd.print(” %”);
lcd.setCursor(0,1);
lcd.print(“Temperatur: “);
lcd.print(t);
lcd.println(” C”);
lcd.setCursor(0,0);
}
}

i got strange symbols on my lcd.Any ideas where they coming from?

Your trouble is right here: lcd.println(" C")

Look for the documentation on lcd.println(). Hint: You won't find any.

Don

Thx man no it works :D