NOAA Weather Data – JFK Airport

STATION

Weather Station Number

STATION_NAME

Weather Station Name

ELEVATION

Weather Station Elevation

LATITUDE

Weather Station Latitude

LONGITUDE

Weather Station Longitude

DATE

Date (day of month given in two digits) and Time of observation

REPORTTPYE

Indicates type of weather observation

HOURLYSKYCONDITIONS

A report of each cloud layer (up to 3)

HOURLYVISIBILITY

The horizontal distance an object can be seen and identified given in whole miles. Note visibilities less than 3 miles are usually given in smaller increments (e.g. 2.5).

HOURLYPRSENTWEATHERTYPE

Weather types describe precipitation or obstructions to vision occurring at the time of observation. These are reported by automated sensors (AU or AW) and manually (MW) by human observation. AU elements are listed first and followed by “|” and followed by AW elements. After the AW elements there will be another “|” followed by the MW elements (e.g. “-RA:02|RA:61|RA:61”). In the preceding example -RA:02 is an AU element, RA:61 is an AW element and RA:61 is an MW element. Note that precipitation types often use “-“ for light intensity or “+” for heavy intensity. If a precipitation type has no “-“ or “+” it is considered to be moderate intensity. It is not uncommon for one type of element to be reported without another. In other words, it is possible to have an AU element without an AW element or MW element.

HOURLYDRYBULBTEMPF

This is the dry-bulb temperature and is commonly used as the standard air temperature reported. It is given here in whole degrees Fahrenheit.

HOURLYDRYBULBTEMPC

This is the dry-bulb temperature and is commonly used as the standard air temperature reported. It is given here in tenths of a degree Celsius.

HOURLYWETBULBTEMPF

This is the wet-bulb temperature. It is given here in whole degrees Fahrenheit.

HOURLYWETBULBTEMPC

This is the wet-bulb temperature. It is given here in tenths of a degree Celsius.

HOURLYDewPointTempF

This is the dew point temperature. It is given here in whole degrees Fahrenheit.

HOURLYDewPointTempC

This is the dew point temperature. It is given here in tenths of a degree Celsius.

HOURLYRelativeHumidity

This is the relative humidity given to the nearest whole percentage.

HOURLYWindSpeed

Speed of the wind at the time of observation given in miles per hour (mph).

HOURLYWindDirection

Wind direction from true north using compass directions (e.g. 360 = true north, 180 = south, 270 =west, etc.). Note: A direction of “000” is given for calm winds.

HOURLYWindGustSpeed

Wind gusts occurring during time of observation. Given in miles per hour (mph).

HOURLYStationPressure

Atmospheric pressure observed at the station during the time of observation. Given in inches of Mercury (in Hg).

HOURLYPressureTendency

Pressure tendency (In general a 0 through 3 here indicates an increase in pressure over previous 3 hours and a 5 through 8 indicates a decrease over the previous 3 hours and 4 indicates no change during the previous 3 hours).

HOURLYPressureChange

Difference in pressure over the past 3 hours. Prefixed with a “+” or “-” to indicate increase or decrease in pressure respectively. Given in inches of Mercury (in Hg).

HOURLYSeaLevelPressure

Sea level pressure given in inches of Mercury (in Hg).

HOURLYPrecip

Amount of precipitation in inches to hundredths over the past hour. For certain automated stations, precipitation will be reported at sub-hourly intervals (e.g. every 15 or 20 minutes) as an accumulated amount of all precipitation within the preceding hour. A “T” indicates a trace amount of precipitation.

HOURLYAltimeterSetting

Atmospheric pressure reduced to sea level using temperature profile of the “standard” atmosphere. Given in inches of Mercury (in Hg).

DAILYMaximumDryBulbTemp

Maximum temperature for the day (in whole degrees Fahrenheit). An asterisk (*) is used to designate when a daily maximum temperature is also the extreme maximum for the month.

DAILYMinimumDryBulbTemp

Minimum temperature for the day (in whole degrees Fahrenheit). An asterisk (*) is used to designate when a daily minimum temperature is also the extreme minimum for the month.

DAILYAverageDryBulbTemp

Average temperature for the day (in whole degrees Fahrenheit). This is based on the arithmetic average of the maximum and minimum temperature for the day.

DAILYDeptFromNormalAverageTemp

Average temperature’s departure from (1981-2010) normal temperature (in whole Fahrenheit degrees using “-” to indicate below normal)

DAILYAverageRelativeHumidity

Average daily relative humidity (in whole percent)

DAILYAverageDewPointTemp

Average daily dew point temperature (in whole degrees Fahrenheit)

DAILYAverageWetBulbTemp

Average daily wet-bulb temperature (in whole degrees Fahrenheit)

DAILYHeatingDegreeDays

Heating degree days (in whole degrees using a 65 degree F base)

DAILYCoolingDegreeDays

Cooling degree days (in whole degrees using a 65 degree F base)

DAILYSunrise

Time of sunrise using a 24-hour clock (Local Standard Time – Daylight Savings Time is not used)

DAILYSunset

Time of sunset using a 24-hour clock (Local Standard Time – Daylight Savings Time is not used)

DAILYWeather

Daily occurrences of weather types. The 2-digit number in each designation corresponds to the WT (weather type code) used in GHCN-Daily dataset.

DAILYPrecip

Water equivalent amount of precipitation for the day (in inches to hundredths). This is all types of precipitation (melted and frozen). T indicates trace amount of precipitation. If left blank, precipitation amount is unreported.

DAILYSnowfall

Daily amount of snowfall (in inches to the tenths). T indicates trace amount.

DAILYSnowDepth

Daily reading of snow on ground (in whole inches). T indicates trace amount.

DAILYAverageStationPressure

Daily average station pressure (in inches of mercury, to hundredths)

DAILYAverageSeaLevelPressure

Daily average sea level pressure (in inches of mercury, to hundredths)

DAILYAverageWindSpeed

Daily average wind speed in miles per hour miles per hour, to tenths)

DAILYPeakWindSpeed

Peak wind speed for the day (in whole miles per hour)

PeakWindDirection

Direction of wind during peak wind speed for the day given as direction from which wind was blowing using a 360 degree compass with respect to true north (e.g north = 360, south = 180, etc.)

DAILYSustainedWindSpeed

Maximum sustained wind speed for the day (in whole miles per hour). Note: For U.S. locations this is the fastest reported speed for the day that is sustained for at least 2 minutes for years 1994 and later. For earlier years it is the fastest reported speed sustained for at least 1 minute.

DAILYSustainedWindDirection

Direction of wind during maximum sustained wind speed for the day given as direction from which wind was blowing using a 360 degree compass with respect to true north"

MonthlyMaximumTemp

Maximum temperature for the month (in whole degrees Fahrenheit).

MonthlyMinimumTemp

Minimum temperature for the month (in whole degrees Fahrenheit).

MonthlyMeanTemp

Mean temperature for the month (in whole degrees Fahrenheit).

MonthlyAverageRH

Average monthly relative humidity (in whole percent)

MonthlyDewpointTemp

Monthly dew point temperature (in whole degrees Fahrenheit)

MonthlyWetBulbTemp

Monthly wet-bulb temperature (in whole degrees Fahrenheit)

MonthlyAvgHeatingDegreeDays

Average monthly heating degree days (in whole degrees using a 65 degree F base)

MonthlyAvgCoolingDegreeDays

Average monthly Cooling degree days (in whole degrees using a 65 degree F base)

MonthlyStationPressure

Monthly station pressure (in inches of mercury, to hundredths)

MonthlySeaLevelPressure

Monthly sea level pressure (in inches of mercury, to hundredths)

MonthlyAverageWindSpeed

Monthly average wind speed in miles per hour miles per hour, to tenths)

MonthlyTotalSnowfall

Monthly amount of snowfall (in inches to the tenths). T indicates trace amount.

MonthlyDeptFromNormalMaximumTemp

Monthly departure from normal - maximum temperature

MonthlyDeptFromNormalMinimumTemp

Monthly departure from normal - minimum temperature

MonthlyDeptFromNormalAverageTemp

Monthly departure from normal - average temperature

MonthlyDeptFromNormalPrecip

Monthly departure from normal - precipitation

MonthlyTotalLiquidPrecip

Water equivalent amount of precipitation for the month (in inches to hundredths).

MonthlyGreatestPrecip

The month’s greatest amount of precipitation to fall in 24 hours - precip value

MonthlyGreatestPrecipDate

The month’s greatest amount of precipitation to fall in 24 hours - precip date

MonthlyGreatestSnowfall

24 hour greatest snowfall

MonthlyGreatestSnowfallDate

24 hour greatest snowfall - date

MonthlyGreatestSnowDepth

Highest snow depth - height

MonthlyGreatestSnowDepthDate

Highest snow depth - date

MonthlyDaysWithGT90Temp

Monthly totals temperature greater than 90 (departures from 1981-2010 normal)

MonthlyDaysWithLT32Temp

Monthly totals temperature less than 32 (departures from 1981-2010 normal)

MonthlyDaysWithGT32Temp

Monthly totals temperature greater than 32 (departures from 1981-2010 normal)

MonthlyDaysWithLT0Temp

Monthly totals temperature less than 0 (departures from 1981-2010 normal)

MonthlyDaysWithGT001Precip

Monthly totals precipitation greater than 0.01 (departures from 1981-2010 normal)

MonthlyDaysWithGT010Precip

Monthly totals precipitation greater than 0.10 (departures from 1981-2010 normal)

MonthlyDaysWithGT1Snow

Monthly totals snow greater than 1 (departures from 1981-2010 normal)

MonthlyMaxSeaLevelPressureValue

Monthly highest sea level pressure value

MonthlyMaxSeaLevelPressureDate

Monthly highest sea level pressure value date

MonthlyMaxSeaLevelPressureTime

Monthly highest sea level pressure value time

MonthlyMinSeaLevelPressureValue

Monthly lowest sea level pressure value

MonthlyMinSeaLevelPressureDate

Monthly lowest sea level pressure value date

MonthlyMinSeaLevelPressureTime

Monthly lowest sea level pressure value time

MonthlyTotalHeatingDegreeDays

Monthly and season to-date totals for heating degree data

MonthlyTotalCoolingDegreeDays

Monthly and season to-date totals for cooling degree data

MonthlyDeptFromNormalHeatingDD

Monthly departure from normal heating degree data

MonthlyDeptFromNormalCoolingDD

Monthly departure from normal cooling degree data

MonthlyTotalSeasonToDateHeatingDD

Season-to-date totals for heating degree data

MonthlyTotalSeasonToDateCoolingDD

Season-to-date totals for cooling degree data