${f.properties.NAME}\n${f.properties.STATE}\n${v.min}

2e:null 2f:["$","title",null,{"children":"Where The Seasons Are | Mike Bostock | Observable"}] 34:[{"id":"9303d40a1285125b7dfa6f296a659a96bda0e7683b6fe7c04ef6a68bc12a0a547dd32da584cfe9c987b0c69b2ec5f08a4d30d5c3036f0b614b7d31f24f62dc9b","href":"https://static.observableusercontent.com/files/9303d40a1285125b7dfa6f296a659a96bda0e7683b6fe7c04ef6a68bc12a0a547dd32da584cfe9c987b0c69b2ec5f08a4d30d5c3036f0b614b7d31f24f62dc9b","name":"states-10m.json","type":"application/octet-stream","lastModified":1572923029302.014,"size":80991},{"id":"d6a715bcf16a8546f5063810a02e2ee2df9ed0f7e27e4fed0550d34040bf46282abd11414de5dd294ad8156fb5196713f4bf5c20f3ca96e4f35e41c31ae2fbf5","href":"https://static.observableusercontent.com/files/d6a715bcf16a8546f5063810a02e2ee2df9ed0f7e27e4fed0550d34040bf46282abd11414de5dd294ad8156fb5196713f4bf5c20f3ca96e4f35e41c31ae2fbf5","name":"climdiv.json","type":"application/octet-stream","lastModified":1572923022229.382,"size":487609},{"id":"d7f66ae2623af613976a58c663d5feb133b30b354306c031ee9750e0071b8b0f250074b183d12d1f98353a91768b9e58c4c85e0ba0a9a06010c8611e06f56a79","href":"https://static.observableusercontent.com/files/d7f66ae2623af613976a58c663d5feb133b30b354306c031ee9750e0071b8b0f250074b183d12d1f98353a91768b9e58c4c85e0ba0a9a06010c8611e06f56a79","name":"temperatures.csv","type":"application/octet-stream","lastModified":1572923011487.17,"size":26959}] 32:{"id":"531e165ab24f74f9","slug":"where-the-seasons-are","title":"Where The Seasons Are","thumbnail":"69237ad8957f14fd6034c1931b3159161925c5df3e0d0a386b094f3f72044cfb","access_level":"public","create_time":"$D2019-08-25T19:49:14.983Z","update_time":"$D2019-11-05T03:03:51.398Z","view_time":null,"first_public_time":"$D2019-08-25T19:58:20.735Z","has_unpublished_edits":null,"fork":false,"stars":17,"starred":false,"owner":{"type":"team","id":"8c2e47252fd4995c","login":"mbostock","name":"Mike Bostock","avatar_url":"https://avatars-next.observableusercontent.com/7dbba99ced40bd5ab8013c99b1a11da61231bce321ba1148a9d16ad0f121550a","tier":"pro_2026"},"version":167,"publish_version":167,"role":null,"authored":false,"authors":[{"type":"individual","id":"074c414ad1d825f5","login":"mbostock","name":"Mike Bostock","avatar_url":"https://avatars-next.observableusercontent.com/7dbba99ced40bd5ab8013c99b1a11da61231bce321ba1148a9d16ad0f121550a","tier":null}],"members":[{"type":"individual","id":"074c414ad1d825f5","login":"mbostock","name":"Mike Bostock","avatar_url":"https://avatars-next.observableusercontent.com/7dbba99ced40bd5ab8013c99b1a11da61231bce321ba1148a9d16ad0f121550a","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":11,"collection":null,"type":"notebook","body":{"title":"Where The Seasons Are","cells":[{"id":0,"value":"md`# Where The Seasons Are\n\nThis map shows the difference between the highest and lowest monthly average temperature per year, from 1895 to the present. The least annual variation is in the Florida Keys, ranging from ${Math.round(d3.min(least.properties.values))}°F in ${formatMonth(d3.minIndex(least.properties.values))} to ${Math.round(d3.max(least.properties.values))}°F in ${formatMonth(d3.maxIndex(least.properties.values))}, while the greatest is in northwest Minnesota, ranging from ${Math.round(d3.min(greatest.properties.values))}°F (*brr!*) in ${formatMonth(d3.minIndex(greatest.properties.values))} to ${Math.round(d3.max(greatest.properties.values))}°F in ${formatMonth(d3.maxIndex(greatest.properties.values))}.\n\nData: [National Climatic Data Center](https://www.climate.gov/maps-data/data-snapshots/data-source-average-monthly-temperature)`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":21,"value":"legend({color, title: \"Mean annual temperature variation (°F)\"})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":28,"value":"html``","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":18,"value":"md`---\n\n## Appendix`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":62,"value":"least = {\n const f = d3.least(divisions.objects.divisions.geometries, f => temperatures.get(f.properties.CLIMDIV).variation);\n const values = temperatures.get(f.properties.CLIMDIV);\n return {...f, properties: {...f.properties, values}};\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":84,"value":"greatest = {\n const f = d3.greatest(divisions.objects.divisions.geometries, f => temperatures.get(f.properties.CLIMDIV).variation);\n const values = temperatures.get(f.properties.CLIMDIV);\n return {...f, properties: {...f.properties, values}};\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":118,"value":"formatMonth = {\n const format = d3.utcFormat(\"%B\");\n return i => format(Date.UTC(2019, i));\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":160,"value":"path = d3.geoPath()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":23,"value":"color = d3.scaleSequential(d3.extent(temperatures.values(), v => v.variation), t => d3.interpolatePiYG(1 - t))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":6,"value":"temperatures = new Map((d3.csvParse(await FileAttachment(\"temperatures.csv\").text(), d3.autoType)).map(({id, ...values}) => {\n const [min, max] = d3.extent(values = Object.values(values));\n return [id, Object.assign(values, {min, max, variation: max - min})];\n}))","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":9,"value":"divisions = FileAttachment(\"climdiv.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":11,"value":"states = FileAttachment(\"states-10m.json\").json()","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":14,"value":"topojson = require(\"topojson-client@3\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":5,"value":"d3 = require(\"d3@5\", \"d3-array@2\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":16,"value":"import {legend} from \"@d3/color-legend\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W34","stdlib":"1","titling":"auto"}} 33:"$32:body"