diff --git a/index.html b/index.html
index 4f7fcc8..e4112c1 100644
--- a/index.html
+++ b/index.html
@@ -120,6 +120,13 @@
         tempgraphs[tempgraphs.length-1].id = "tempscale";
         humidgraphs[humidgraphs.length-1].id = "humidscale";
 
+	humidgraphs.push(
+		{"type": "column", "valueField": "rainfall",
+                "fixedColumnWidth": 1,
+                "fillColors": colorss,
+		"title": "降水量(三田)", "valueAxis": "v2",
+		"balloonText": "<b>降水量 [[value]]mm</b>" });
+
     var tempchart= AmCharts.makeChart("tempdiv", {
         "type": "serial",
         "dataProvider": data,
@@ -134,7 +141,10 @@
 		fillAlpha: 0.1,
 		lineAlpha: 0
 		}]
-	    }],
+	    }, {
+            id: 'v2',
+            position: "right",
+            }],
         "chartScrollbar": {
             "autoGridCount": true,
             "graph": "tempscale",
@@ -243,7 +253,12 @@
 		inside: true,
 		fillAlpha: 0.1,
 		lineAlpha: 0
-		}]}],
+		}]}, {
+                 id: 'v2',
+                 axisAlpha: 0,
+                 labelsEnabled: false,
+                 maximum:100,
+        }],
         "listeners": [{
             "event": "zoomed",
             "method": syncZoom
diff --git a/merge.py b/merge.py
index d1d313c..25f0965 100755
--- a/merge.py
+++ b/merge.py
@@ -25,7 +25,7 @@
         tmp=filter(lambda x: x["datetime"] >= frm_s and x["datetime"] <= to_s, r1)
         if tmp == []: continue
         result+=(tmp)
-    r1 = csv.DictReader(lzma.LZMAFile("JMA.csv.xz"), fieldnames=["datetime", "temp-jma", "humid-jma"])
+    r1 = csv.DictReader(lzma.LZMAFile("JMA.csv.xz"), fieldnames=["datetime", "temp-jma", "humid-jma", "rainfall"])
     tmp=filter(lambda x: x["datetime"] >= frm_s and x["datetime"] <= to_s, r1)
     result += (tmp)