From a6f1773492f499dfe60fdb8ef20939650a99ced1 Mon Sep 17 00:00:00 2001
From: MatsNl <37705266+MatsNl@users.noreply.github.com>
Date: Sat, 10 Aug 2019 23:45:47 +0200
Subject: [PATCH] Update sensor.py (#25825)

exclude "unknown" values from measurements
---
 homeassistant/components/statistics/sensor.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/homeassistant/components/statistics/sensor.py b/homeassistant/components/statistics/sensor.py
index 30e112fdfbf..252a29591c9 100644
--- a/homeassistant/components/statistics/sensor.py
+++ b/homeassistant/components/statistics/sensor.py
@@ -12,6 +12,7 @@ from homeassistant.const import (
     CONF_ENTITY_ID,
     EVENT_HOMEASSISTANT_START,
     STATE_UNKNOWN,
+    STATE_UNAVAILABLE,
     ATTR_UNIT_OF_MEASUREMENT,
 )
 from homeassistant.core import callback
@@ -131,7 +132,7 @@ class StatisticsSensor(Entity):
 
     def _add_state_to_queue(self, new_state):
         """Add the state to the queue."""
-        if new_state.state == STATE_UNKNOWN:
+        if new_state.state in [STATE_UNKNOWN, STATE_UNAVAILABLE]:
             return
 
         try: