diff --git a/libpov.js b/libpov.js
index 7fa7d7c..a1cb7e1 100644
--- a/libpov.js
+++ b/libpov.js
@@ -1681,6 +1681,10 @@ function updateCoordinateDisplay(pixelX, pixelY) {
 		heat_precision = 1;
 	} else if (heat_range >= 1) {
 		heat_precision = 2;
+	} else if (heat_range >= 0.1) {
+		heat_precision = 5;
+	} else if (heat_range >= 0.001) {
+		heat_precision = 10;
 	}
 
 	let humidity_precision = null;
@@ -1690,6 +1694,10 @@ function updateCoordinateDisplay(pixelX, pixelY) {
 		humidity_precision = 1;
 	} else if (humidity_range >= 1) {
 		humidity_precision = 2;
+	} else if (humidity_range >= 0.1) {
+		humidity_precision = 5;
+	} else if (humidity_range >= 0.001) {
+		humidity_precision = 10;
 	}
 
 	let heatStr, humidityStr;