Returns a summary of the observed weather history for yesterday.
Note: replace {{key}} with Your_Key
http://api.wunderground.com/api/Your_Key/yesterday/q/CA/San_Francisco.json
Show Response
{
"response": {
"version": "0.1",
"termsofService": "http://www.wunderground.com/weather/api/d/terms.html",
"features": {
"yesterday": 1
}
},
"history": {
"date": {
"pretty": "July 2, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "12",
"min": "00",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "July 2, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "19",
"min": "00",
"tzname": "UTC"
},
"observations": [{
"date": {
"pretty": "12:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "00",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "7:56 AM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "07",
"min": "56",
"tzname": "UTC"
},
"tempm": "15.0",
"tempi": "59.0",
"dewptm": "11.7",
"dewpti": "53.1",
"hum": "81",
"wspdm": "9.3",
"wspdi": "5.8",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "240",
"wdire": "WSW",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1012.3",
"pressurei": "29.90",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Overcast",
"icon": "cloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 020756Z 24005KT 10SM SCT007 BKN011 OVC014 15/12 A2989 RMK AO2 SLP123 T01500117 402000144 $"
}, {
"date": {
"pretty": "1:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "01",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "8:56 AM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "08",
"min": "56",
"tzname": "UTC"
},
"tempm": "15.0",
"tempi": "59.0",
"dewptm": "11.7",
"dewpti": "53.1",
"hum": "81",
"wspdm": "9.3",
"wspdi": "5.8",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "220",
"wdire": "SW",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1012.0",
"pressurei": "29.89",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Mostly Cloudy",
"icon": "mostlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 020856Z 22005KT 10SM SCT007 BKN011 BKN019 15/12 A2989 RMK AO2 SLP120 T01500117 58008 $"
}, {
"date": {
"pretty": "2:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "02",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "9:56 AM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "09",
"min": "56",
"tzname": "UTC"
},
"tempm": "15.0",
"tempi": "59.0",
"dewptm": "11.1",
"dewpti": "52.0",
"hum": "78",
"wspdm": "13.0",
"wspdi": "8.1",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "230",
"wdire": "SW",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1011.7",
"pressurei": "29.88",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Mostly Cloudy",
"icon": "mostlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 020956Z 23007KT 10SM SCT007 BKN011 BKN019 15/11 A2988 RMK AO2 SLP117 T01500111 $"
}, {
"date": {
"pretty": "3:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "03",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "10:56 AM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "10",
"min": "56",
"tzname": "UTC"
},
"tempm": "14.4",
"tempi": "57.9",
"dewptm": "11.1",
"dewpti": "52.0",
"hum": "81",
"wspdm": "7.4",
"wspdi": "4.6",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "300",
"wdire": "WNW",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1011.4",
"pressurei": "29.87",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Mostly Cloudy",
"icon": "mostlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021056Z 30004KT 10SM SCT007 BKN011 BKN019 14/11 A2987 RMK AO2 SLP114 T01440111 $"
}, {
"date": {
"pretty": "4:03 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "04",
"min": "03",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "11:03 AM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "11",
"min": "03",
"tzname": "UTC"
},
"tempm": "14.0",
"tempi": "57.2",
"dewptm": "11.0",
"dewpti": "51.8",
"hum": "82",
"wspdm": "7.4",
"wspdi": "4.6",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "290",
"wdire": "WNW",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1011.4",
"pressurei": "29.87",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Partly Cloudy",
"icon": "partlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "SPECI KSFO 021103Z 29004KT 10SM FEW011 14/11 A2987 RMK AO2 $"
}, {
"date": {
"pretty": "4:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "04",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "11:56 AM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "11",
"min": "56",
"tzname": "UTC"
},
"tempm": "13.9",
"tempi": "57.0",
"dewptm": "11.1",
"dewpti": "52.0",
"hum": "83",
"wspdm": "13.0",
"wspdi": "8.1",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "270",
"wdire": "West",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1011.8",
"pressurei": "29.88",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Mostly Cloudy",
"icon": "mostlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021156Z 27007KT 10SM FEW007 BKN013 14/11 A2988 RMK AO2 SLP118 T01390111 10156 20139 55002 $"
}, {
"date": {
"pretty": "5:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "05",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "12:56 PM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "12",
"min": "56",
"tzname": "UTC"
},
"tempm": "13.9",
"tempi": "57.0",
"dewptm": "10.6",
"dewpti": "51.1",
"hum": "81",
"wspdm": "9.3",
"wspdi": "5.8",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "230",
"wdire": "SW",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1012.3",
"pressurei": "29.90",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Mostly Cloudy",
"icon": "mostlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021256Z 23005KT 10SM FEW007 BKN013 BKN015 14/11 A2990 RMK AO2 SLP123 T01390106 $"
}, {
"date": {
"pretty": "6:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "06",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "1:56 PM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "13",
"min": "56",
"tzname": "UTC"
},
"tempm": "14.4",
"tempi": "57.9",
"dewptm": "10.6",
"dewpti": "51.1",
"hum": "78",
"wspdm": "13.0",
"wspdi": "8.1",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "230",
"wdire": "SW",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1012.6",
"pressurei": "29.91",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Mostly Cloudy",
"icon": "mostlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021356Z 23007KT 10SM FEW007 BKN013 14/11 A2990 RMK AO2 SLP126 T01440106 $"
}, {
"date": {
"pretty": "7:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "07",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "2:56 PM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "14",
"min": "56",
"tzname": "UTC"
},
"tempm": "14.4",
"tempi": "57.9",
"dewptm": "10.6",
"dewpti": "51.1",
"hum": "78",
"wspdm": "-9999.0",
"wspdi": "-9999.0",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "0",
"wdire": "North",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1012.9",
"pressurei": "29.91",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Mostly Cloudy",
"icon": "mostlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021456Z 10SM FEW006 BKN011 BKN014 14/11 A2991 RMK AO2 SLP129 T01440106 51010 $"
}, {
"date": {
"pretty": "8:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "08",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "3:56 PM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "15",
"min": "56",
"tzname": "UTC"
},
"tempm": "15.6",
"tempi": "60.1",
"dewptm": "11.1",
"dewpti": "52.0",
"hum": "75",
"wspdm": "20.4",
"wspdi": "12.7",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "270",
"wdire": "West",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1013.1",
"pressurei": "29.92",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Mostly Cloudy",
"icon": "mostlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021556Z 27011KT 10SM FEW006 BKN011 BKN014 16/11 A2992 RMK AO2 SLP131 T01560111 $"
}, {
"date": {
"pretty": "9:08 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "09",
"min": "08",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "4:08 PM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "16",
"min": "08",
"tzname": "UTC"
},
"tempm": "16.0",
"tempi": "60.8",
"dewptm": "11.0",
"dewpti": "51.8",
"hum": "72",
"wspdm": "22.2",
"wspdi": "13.8",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "270",
"wdire": "West",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1013.1",
"pressurei": "29.92",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Scattered Clouds",
"icon": "partlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "SPECI KSFO 021608Z 27012KT 10SM FEW007 SCT016 16/11 A2992 RMK AO2 $"
}, {
"date": {
"pretty": "9:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "09",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "4:56 PM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "16",
"min": "56",
"tzname": "UTC"
},
"tempm": "16.1",
"tempi": "61.0",
"dewptm": "10.6",
"dewpti": "51.1",
"hum": "70",
"wspdm": "27.8",
"wspdi": "17.3",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "270",
"wdire": "West",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1013.3",
"pressurei": "29.93",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Scattered Clouds",
"icon": "partlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021656Z 27015KT 10SM FEW006 SCT014 16/11 A2993 RMK AO2 SLP133 T01610106"
}, {
"date": {
"pretty": "10:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "10",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "5:56 PM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "17",
"min": "56",
"tzname": "UTC"
},
"tempm": "16.7",
"tempi": "62.1",
"dewptm": "10.6",
"dewpti": "51.1",
"hum": "67",
"wspdm": "24.1",
"wspdi": "15.0",
"wgustm": "35.2",
"wgusti": "21.9",
"wdird": "270",
"wdire": "West",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1013.3",
"pressurei": "29.93",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Partly Cloudy",
"icon": "partlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021756Z 27013G19KT 10SM FEW007 17/11 A2993 RMK AO2 SLP133 T01670106 10172 20139 51004"
}, {
"date": {
"pretty": "11:56 AM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "11",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "6:56 PM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "18",
"min": "56",
"tzname": "UTC"
},
"tempm": "17.8",
"tempi": "64.0",
"dewptm": "10.6",
"dewpti": "51.1",
"hum": "63",
"wspdm": "25.9",
"wspdi": "16.1",
"wgustm": "-9999.0",
"wgusti": "-9999.0",
"wdird": "260",
"wdire": "West",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1013.2",
"pressurei": "29.92",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Partly Cloudy",
"icon": "partlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021856Z 26014KT 10SM FEW008 18/11 A2992 RMK AO2 SLP132 T01780106"
}, {
"date": {
"pretty": "12:56 PM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "12",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "7:56 PM GMT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "19",
"min": "56",
"tzname": "UTC"
},
"tempm": "18.3",
"tempi": "64.9",
"dewptm": "10.6",
"dewpti": "51.1",
"hum": "61",
"wspdm": "25.9",
"wspdi": "16.1",
"wgustm": "37.0",
"wgusti": "23.0",
"wdird": "260",
"wdire": "West",
"vism": "16.1",
"visi": "10.0",
"pressurem": "1013.2",
"pressurei": "29.92",
"windchillm": "-999",
"windchilli": "-999",
"heatindexm": "-9999",
"heatindexi": "-9999",
"precipm": "-9999.00",
"precipi": "-9999.00",
"conds": "Partly Cloudy",
"icon": "partlycloudy",
"fog": "0",
"rain": "0",
"snow": "0",
"hail": "0",
"thunder": "0",
"tornado": "0",
"metar": "METAR KSFO 021956Z 26014G20KT 10SM FEW008 18/11 A2992 RMK AO2 SLP132 T01830106"
}, {
"date": {
"pretty": "1:56 PM PDT on July 02, 2012",
"year": "2012",
"mon": "07",
"mday": "02",
"hour": "13",
"min": "56",
"tzname": "America/Los_Angeles"
},
"utcdate": {
"pretty": "8:56 PM GMT on July 02, 2012",
"year": "2012",
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}
}
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