diff --git a/src/view/frm_stream_gage_docwidget.py b/src/view/frm_stream_gage_docwidget.py
index e07f6da..8a25c2a 100644
--- a/src/view/frm_stream_gage_docwidget.py
+++ b/src/view/frm_stream_gage_docwidget.py
@@ -159,6 +159,8 @@ def load_discharge_plot(self):
         disch = [item[1] for item in data]
         # remove empty string values
         disch = [item if item != '' else None for item in disch]
+        # Remove non float values
+        disch = [item if item is None or isinstance(item, (int, float)) else None for item in disch]
         self._static_ax.plot(dates, disch, ".")
         self._static_ax.set_ylabel('Discharge (CFS)')
         self._static_ax.set_xlabel('Date')