diff --git a/pool.js b/pool.js
index 72fb4ab..24d852f 100644
--- a/pool.js
+++ b/pool.js
@@ -180,8 +180,8 @@ function update_temp(temp) {
   }
   status.lock_update = true;
 
-  status.temp = temp;
-  status.temp_today = Math.max(status.temp_today, temp);
+  status.temp = Math.round(temp * 10) / 10;
+  status.temp_today = Math.max(status.temp_today, status.temp);
   status.temp_max   = Math.max(status.temp_today, status.temp_yesterday);
 
   print("[POOL] update_temp - max:", status.temp_max, "today:", status.temp_today, "yesterday:", status.temp_yesterday);