diff --git a/pkg/weather/enrich.go b/pkg/weather/enrich.go
index 5a3d2f7..7b958e5 100644
--- a/pkg/weather/enrich.go
+++ b/pkg/weather/enrich.go
@@ -13,7 +13,7 @@ func (u *WeatherUpdate) Enrich() {
 		u.WindChillF = CalculateWindChill(u.TempOutdoorF, u.WindSpeedMPH)
 	}
 
-	if u.DewPointF == 0 {
+	if u.DewPointF == 0 && (u.TempOutdoorF != 0 && u.HumidityOudoor != 0) {
 		u.DewPointF = CalculateDewPoint(u.TempOutdoorF, float64(u.HumidityOudoor))
 	}