Historical

Data fields for the historical weather API:

Field

Values (Metric, Imperial)

Availability

temperature

The "real" temperature measurement (at 2m)

Celsius [-90,60]
Fahrenheit

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

dewPoint

The temperature to which air must be cooled to become saturated with water vapor (at 2m)

Celsius [0,100]
Fahrenheit

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

humidity

The concentration of water vapor present in the air

%

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

windSpeed

The fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in temperature at 10m

m/s
mph

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

windSpeed100

The fundamental atmospheric quantity caused by air moving from high to low pressure, usually due to changes in temperature at 100m

m/s
mph

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

windDirection

The direction from which it originates, measured in degrees clockwise from due north at 10m

degrees or null

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ~

windDirection100

The direction from which it originates, measured in degrees clockwise from due north at 100m

degrees or null

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ~

windGust

The maximum brief increase in the speed of the wind, usually less than 20 seconds (at 10m)

m/s
mph

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

pressureSurfaceLevel

The force exerted against a surface by the weight of the air above the surface (at the surface level)

hPa
inHg

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

totalPrecipitationAccumulation

The total amount of precipitation that has occurred within a given timeframe.

mm
in

F: January 1st 2015 till -90 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

et0

ET0 (evapotranspiration)
The amount of water extracted from the different soil layers.

mm
in

F: January 1st 2015 till -90 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

snowAccumulation

The 'liquid water equivalent' of accumulated amount of new snowfall that has occurred over the last hour of the requested time

Will always return hourly data and does not aggregate - eg. if you request snowAccumulationMax over a daily timestep, the max hourly value of that day will be returned, not the accumulation for the whole day.

mm of LWE
in of LWE

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: ∧ ∨ ~ ⧖

Calculated daily fields:

Field

Values (Metric, Imperial)

Availability

sunriseTime

The daily appearance of the Sun on the horizon due to Earth's rotation

UTC ISO-8601

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S:

sunsetTime

The daily disappearance of the Sun below the horizon due to Earth's rotation

UTC ISO-8601

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S:

moonPhase

The shape of the directly sunlit portion of the Moon as viewed from Earth

0: New (0.0625-0.9375)
1: Waxing Crescent (0.0625-0.1875)
2: First Quarter (0.1875-0.3125)
3: Waxing Gibbous (0.3125-0.4375)
4: Full (0.4375-0.5625)
5: Waning Gibbous (0.5625-0.6875)
6: Third Quarter (0.6875-0.8125)
7: Waning Crescent (0.8125-0.9375)

F: January 1st 2015 till -7 days.
I: H
A: WW Land
S: