NYC Weather 2014

A d3js implementation of weather radials infographics. Data from WU.

The temperatures are represented by bars and the precipitations by circles.

<!DOCTYPE html>
<meta charset="utf-8">
<style>

body {
  font: 10px sans-serif;
}

.x.axis path {
  display: none;
}

</style>
<body>
<script src="https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js"></script>
<script>

var width = 960,
    height = 900,
    margin = 40,
    maxRadius = (height/2) - margin;

var formatDate = d3.time.format("%Y-%m-%d"),
	monthNameFormat = d3.time.format("%b");

var ticks = [-20,-10,0,10,20,30,40];

var x = d3.scale.linear()
  .domain([-20, 40])
  .range([120, maxRadius]);

var xAxis = d3.svg.axis()
  .scale(x).orient("left")
  .tickValues([-20,0,20,40])
  .tickFormat(function(d) { return d + "°C"; });

var r = d3.scale.linear()
  .domain([0,200])
  .range([0, maxRadius/4]);

var color = d3.scale.linear()
  .domain(ticks)
  .range(["#00375a","#1b6491","#52b7e7","#96d88c","#fbd65f","#e46c56","#9e3b2c"]);

var svg = d3.select('body').append("svg")
    .attr("width", width)
    .attr("height", height)
  .append("g")
    .attr("transform", "translate(" + width/2 + "," + height/2 + ")");

d3.csv("nyc.csv", function(error, data) {

data.forEach(function(d) {
    d["date"] = formatDate.parse(d["date"]);
    d["Min TemperatureC"] = +d["Min TemperatureC"];
	  d["Max TemperatureC"] = +d["Max TemperatureC"];
	  d["Mean TemperatureC"] = +d["Mean TemperatureC"];
	  d["Precipitationmm"] = (d["Precipitationmm"] === "T") ? 0 : +d["Precipitationmm"];
  });

var months = d3.map(data, function(d) {
    return monthNameFormat(d["date"]);
  }).keys();

var monthTicks = svg.append("g")
  	.attr("class","monthTicks");

monthTicks.selectAll(".monthTick")
	  .data(months)
   .enter().append("g")
	  .attr("class","monthTick")
	  .attr("transform", function(d, i) { return "rotate(" + (i * 360 / months.length) + ")"; });
 
  monthTicks.selectAll(".monthTick")
    .append("line")
    .attr("y1", -maxRadius - 5)
    .attr("y2", -maxRadius - 30)
    .style("stroke", "#d6d6d6")
    .style("stroke-width",2);

monthTicks.selectAll(".monthTick").append("text")
    .attr("x", 8)
    .attr("y", -maxRadius - 15)
    .style("font-size",15)
    .style("fill","#d6d6d6")
    .style("font-family","monospace")
    .style("text-anchor", "begin")
    .text(function(d) { return d; });

var tickCircles = svg.append("g")
    .attr("class","ticksCircle");
  	
  tickCircles.selectAll("circle")
    .data(ticks)
   .enter().append("circle")
	  .attr("r", function(d) {return x(d);})
    .style("fill", "none")
	  .style("stroke", "#d6d6d6")
    .style("stroke-width", function(d,i) { return ((i & 1) === 0) ? 1 : 0.25; });

var temperatures = svg.selectAll(".temperature")
    .data(data)
   .enter().append("g")
    .attr("class","temperature")
    .attr("transform", function(d, i) { return "rotate(" + (i * 360 / data.length) + ")"; });

temperatures.append("path")
    .style("stroke", "white")
    .style("stroke-width",1.2)
    .style("fill", function(d) { return color(d["Mean TemperatureC"]); })
    .attr("d", arc);
    
  var precipitations = svg.selectAll(".precipitation")
    .data(data)
   .enter().append("g")
    .attr("class","precipitation")
	  .attr("transform", function(d, i) { return "rotate(" + (i * 360 / data.length) + ")"; });

precipitations.append("circle")
    .attr("cx",0)
    .attr("cy",function(d) { return -x(d["Mean TemperatureC"]); })
	  .attr("r", function(d) { return r(d["Precipitationmm"]); })
	  .style("opacity", .15)
  	.style("fill", "#5c82b9");

var legend = svg.append("g")
    .attr("class", "legend");

legend.append("text")
    .attr("dy", ".35em")
  	.style("font-size",70)
  	.style("fill","#454545")
  	.style("font-family","monospace")
    .style("text-anchor", "middle")
    .text("New York");

svg.append("g")
    .attr("class", "x axis")
    .call(xAxis)
   .selectAll("text")
    .style("fill","#454545")
    .style("text-anchor","middle");

});

d3.select(self.frameElement).style("height", height + "px");

</script>

https://cdnjs.cloudflare.com/ajax/libs/d3/3.5.5/d3.min.js