http://jsfiddle.net/gx8zLwma/

<!DOCTYPE html>
<html>
<meta charset="utf-8">
<body>
  <div id="chart">
      <svg width = "960px" height = "500px" style="border: 0.5px solid #ccc;">
      </svg>
  </div>
<script src="https://d3js.org/d3.v3.min.js"></script>  
<script>
var data = [
{month: 1, high:56.39, low:45.61, precipitations:4.39},
{month: 2, high:59.83, low:48, precipitations:3.87},
{month: 3, high:61.65, low:48.84, precipitations:2.79},
{month: 4, high:62.97, low:49.8, precipitations:1.37},
{month: 5, high:64, low:51.26, precipitations:0.56},
{month: 6, high:66.13, low:52.77, precipitations:0.15},
{month: 7, high:65.71, low:53.68, precipitations:0.02},
{month: 8, high:66.58, low:54.45, precipitations:0.06},
{month: 9, high:69.87, low:55.57, precipitations:0.23},
{month: 10, high:69.26, low:54.35, precipitations:1.02},
{month: 11, high:63.7, low:50.97, precipitations:2.59},
{month: 12, high:57.35, low:46.9, precipitations:4.06}
];

var margin = {top: 20, right: 20, bottom: 30, left: 40},
    width = 960 - margin.left - margin.right,
    height = 500 - margin.top - margin.bottom;

var x = d3.scale.linear()
    .range([0, width]);

var y = d3.scale.linear()
    .range([height, 0]);

var color = d3.scale.category10();

var xAxis = d3.svg.axis()
    .scale(x)
    .orient("bottom");

var yAxis = d3.svg.axis()
    .scale(y)
    .orient("left");

var svg = d3.select("svg")
    .attr("width", width + margin.left + margin.right)
    .attr("height", height + margin.top + margin.bottom)
  .append("g")
    .attr("transform", "translate(" + margin.left + "," + margin.top + ")");

data.forEach(function(d) {
    d.high = +d.high;
    d.precipitations = +d.precipitations;
  });

x.domain([d3.min(data, function(d) { return d.low; }),
            d3.max(data, function(d) { return d.high; })]
          ).nice();
  y.domain(
      [d3.min(data, function(d) { return d.precipitations; }),
      d3.max(data, function(d) { return d.precipitations; })]
  ).nice();

svg.append("g")
      .attr("class", "x axis")
      .attr("transform", "translate(0," + height + ")")
      .call(xAxis)
    .append("text")
      .attr("class", "label")
      .attr("x", width)
      .attr("y", -6)
      .style("text-anchor", "end")
      .text("high");

svg.append("g")
      .attr("class", "y axis")
      .call(yAxis)
    .append("text")
      .attr("class", "label")
      .attr("transform", "rotate(-90)")
      .attr("y", 6)
      .attr("dy", ".3em")
      .style("text-anchor", "end")
      .text("precipitations (in)")
  
  svg.select(".x path")
      .attr("fill", "none");

svg.select(".y path")
      .attr("fill", "none");

svg.selectAll(".dot")
      .data(data)
    .enter().append("circle")
      .attr("class", "dot")
      .attr("r", 5)
      .attr("cx", function(d) { return x(d.high); })
      .attr("cy", function(d) { return y(d.precipitations); })
      .style("fill", "orange");

svg.selectAll(".box")
      .data(data)
    .enter().append("rect")
      .attr("class", "box")
      .attr("height", 2)
      .attr("width", 2)
      .attr("x", function(d) { return x(d.low); })
      .attr("y", function(d) { return y(d.precipitations); })
      .style("fill", "blue");

var legend = svg.selectAll(".legend")
      .data(color.domain())
    .enter().append("g")
      .attr("class", "legend")
      .attr("transform", function(d, i) { return "translate(0," + i * 20 + ")"; });

legend.append("rect")
      .attr("x", width - 18)
      .attr("width", 18)
      .attr("height", 18)
      .style("fill", color);

legend.append("text")
      .attr("x", width - 24)
      .attr("y", 9)
      .attr("dy", ".35em")
      .style("text-anchor", "end")
      .text(function(d) { return d; });
</script>
</body>
</html>

https://d3js.org/d3.v3.min.js