diff --git a/homeassistant/components/sensor/lacrosse.py b/homeassistant/components/sensor/lacrosse.py
index 3e0a5af283f..034f0be49f6 100644
--- a/homeassistant/components/sensor/lacrosse.py
+++ b/homeassistant/components/sensor/lacrosse.py
@@ -157,7 +157,7 @@ class LaCrosseSensor(Entity):
             self._expiration_trigger = async_track_point_in_utc_time(
                 self.hass, self.value_is_expired, expiration_at)
 
-        self._temperature = round(lacrosse_sensor.temperature * 2) / 2
+        self._temperature = lacrosse_sensor.temperature
         self._humidity = lacrosse_sensor.humidity
         self._low_battery = lacrosse_sensor.low_battery
         self._new_battery = lacrosse_sensor.new_battery