diff --git a/pkg/weather/metrics_init.go b/pkg/weather/metrics_init.go
index fe25409..ae9e041 100644
--- a/pkg/weather/metrics_init.go
+++ b/pkg/weather/metrics_init.go
@@ -71,7 +71,7 @@ func MustInitMetrics(appCtx context.Context) *WeatherMetrics {
 		metric.WithDescription("Count of lightning strikes for current day"))
 	wm.LightningLastDistance, _ = wm.meter.Int64Gauge(MetricPrefix+"_lightning_last_distance",
 		metric.WithDescription("Last measured lightning distance"),
-		metric.WithUnit("kph"))
+		metric.WithUnit("km"))
 	wm.LightningLastTime, _ = wm.meter.Int64Gauge(MetricPrefix+"_lightning_last_time",
 		metric.WithDescription("Last lightning time (epoch)"),
 		metric.WithUnit("s"))