What format is tempest's historical data in API?

[Best_codes]

What format is tempest’s historical data in API?

Question:

If I visit the tempest API (historical) at say
https://swd.weatherflow.com/swd/rest/stats/device/291045?api_key=...&build=...&token=...etc...

I get a response like this:

{
    "device_id": XXXXXX,
    "type": "device_stats_st",
    "first_ob_day_local": "YYYY-MM-DD",
    "last_ob_day_local": "YYYY-MM-DD",
    "stats_day": [
        [
            "YYYY-MM-DD",
            977.4,
            978.4,
            976.5,
            27.8,
            33.5,
            23,
            58,
            72,
            41,
            22746,
            119657,
            0,
            2,
            10.79,
            0,
            190,
            997,
            0,
            1.2,
            4.91,
            0,
            2,
            3,
            0,
            null,
            751,
            2.7,
            6.19345,
            0.130062,
            12,
            12,
            2,
            1
        ],
        [
            "YYYY-MM-DD",
            985.7,
            988.2,
            978.3,
            27.2,
            33.6,
            21,
            70,
            82,
            54,
            35558,
            115046,
            0,
            3.3,
            10.57,
            0,
            296,
            959,
            0,
            1.6,
            4.85,
            0,
            63,
            3,
            0,
            null,
            1433,
            2.7,
            0,
            0,
            0,
            0,
            0,
            0
        ]
   ]
}

But my question is, what is each number? I see for UDP docs that the data for it is formatted like

Index	Field	Units
0	Time Epoch	Seconds
1	Wind Lull (minimum 3 second sample)	m/s
2	Wind Avg (average over report interval)	m/s
3	Wind Gust (maximum 3 second sample)	m/s
4	Wind Direction	Degrees
5	Wind Sample Interval	seconds
6	Station Pressure	MB
7	Air Temperature	C
8	Relative Humidity	%
9	Illuminance	Lux
10	UV	Index
11	Solar Radiation	W/m^2
12	Rain amount over previous minute	mm
13	Precipitation Type	0 = none, 1 = rain, 2 = hail, 3 = rain + hail (experimental)
14	Lightning Strike Avg Distance	km
15	Lightning Strike Count
16	Battery	Volts
17	Report Interval	Minutes

https://weatherflow.github.io/Tempest/api/udp/v171/

So what is each number in the historical version? Is it each one’s high and low, is it in the same order, etc. See below:

Thanks in advance!

[mabeatty1978]

@Best_codes

https://swd.weatherflow.com/swd/r

It’s documented in a different location. I’m can say I understand why there are two sources of documentation, but the one below seems to be a “new” version.

Statistics for a Station

TLDR;

Index	Parameter	Description
0	Pressure	(mb)
1	Pressure (high)	(mb)
2	Pressure (low)	(mb)
3	Temperature	(°C)
4	Temperature (high)	(°C)
5	Temperature (low)	(°C)
6	Humidity	(%)
7	Humidity (high)	(%)
8	Humidity (low)	(%)
9	Lux	(lx)
10	Lux (high)	(lx)
11	Lux (low)	(lx)
12	UV	(index)
13	UV (high)	(index)
14	UV (low)	(index)
15	Solar radiation	(W/m²)
16	Solar radiation (high)	(W/m²)
17	Solar radiation (low)	(W/m²)
18	Wind (average)	(m/s)
19	Wind (gust)	(m/s)
20	Wind (lull)	(m/s)
21	Wind direction	(°)
22	Wind interval
23	Strike count
24	Strike average distance	(km)
25	Record count
26	Battery
27	Local precipitation accumulation (today)	(mm)
28	Local precipitation accumulation (final)	(mm)
29	Local precipitation minutes (today)
30	Local precipitation minutes (final)
31	Precipitation type	0 = none, 1 = rain, 2 = hail, 3 = rain + hail (experimental)
32	Precipitation analysis type	0 = none, 1 = Nearcast value with display on, 2 = Nearcast value with display off

[Best_codes]

Thanks, @mabeatty1978, that fixed the issue. Just wondering, is the

@mabeatty1978

0 Pressure (mb)

@mabeatty1978

3 Temperature (°C)

etc. Just the average since it isn’t a high or a low?

Thanks so much, again!

[iladyman]

Hi @Best_codes,

I doubt that they are averages.
Simple to confirm though.
What do you see when you look at what is returned compared to your days history?
Let us know what you discover.

cheers Ian

[Best_codes]

The API says something like this:

[
            "2023-08-17",
            977.4,
            978.4,
            976.5,
            27.8,
            33.5,
            23,
            58,
            72,
            41,
            22746,
            119657,
            0,
            2,
            10.79,
            0,
            190,
            997,
            0,
            1.2,
            4.91,
            0,
            2,
            3,
            0,
            null,
            751,
            2.7,
            6.19345,
            0.130062,
            12,
            12,
            2,
            1
        ],
        [
            "2023-08-18",
            985.7,
            988.2,
            978.3,
            27.2,
            33.6,
            21,
            70,
            82,
            54,
            35558,
            115046,
            0,
            3.3,
            10.57,
            0,
            296,
            959,
            0,
            1.6,
            4.85,
            0,
            63,
            3,
            0,
            null,
            1433,
            2.7,
            0,
            0,
            0,
            0,
            0,
            0
        ],

But I can’t find where the daily stats are for those days on tempestwx.com.

So, I don’t know…

[iladyman]

Hi @Best_codes,
If you do that again but for yesterdays data and supply the link to your station assuming it is public then I can have a look for you.
Cheers Ian

[Best_codes]

Sorry, @iladyman, my station is not public.

Here is yesterday’s data from the API:

[
            "2023-12-06",
            792.5,
            793.6,
            791.5,
            9.7,
            16.8,
            3,
            54,
            73,
            35,
            14683,
            64377,
            0,
            0.7,
            2.91,
            0,
            122,
            536,
            0,
            2.2,
            8.29,
            0,
            144,
            3,
            0,
            null,
            1435,
            2.7,
            0.011624,
            0.000244,
            1,
            1,
            1,
            1
        ],
        [
            "2023-12-07",
            793.1,
            794,
            792.4,
            13.9,
            19.8,
            9,
            63,
            80,
            54,
            14899,
            63170,
            0,
            0.7,
            2.86,
            0,
            124,
            526,
            0,
            4.3,
            13.54,
            0,
            175,
            3,
            0,
            null,
            1328,
            2.7,
            0,
            0,
            0,
            0,
            0,
            0
        ]

If you can access the link (if you are an admin or something), it is https://tempestwx.com/station/116095/. I have gone to the history chart for temp:

Historical data for station 116095

But it goes by minute, not daily.

[Best_codes]

@iladyman @mabeatty1978 Aha! I went to
https://tempestwx.com/history/116095/day/2023/12/6
I see this (after changing my settings to degrees C):

[
            "2023-12-06",
            792.5,
            793.6,
            791.5,
            9.7,
            16.8,
            3,
            54,
            73,
            35,
            14683,
            64377,
            0,
            0.7,
            2.91,
            0,
            122,
            536,
            0,
            2.2,
            8.29,
            0,
            144,
            3,
            0,
            null,
            1435,
            2.7,
            0.011624,
            0.000244,
            1,
            1,
            1,
            1
        ]

Which matches the data in the API for high, low, and average. Thanks, everyone, for your help!

[vinceskahan]

Nice. Sure wish @wfsupport would link this one into their WeatherFlow Tempest API & Developer Platform page next to the current link to the swagger play around page they point to now for REST.

[mabeatty1978]

Those are current observations.

[Best_codes]

I think they are the average for the day, actually.

@Best_codes

@iladyman @mabeatty1978 Aha! I went to
https://tempestwx.com/history/116095/day/2023/12/6
I see this (after changing my settings to degrees C):

[
            "2023-12-06",
            792.5,
            793.6,
            791.5,
            9.7,
            16.8,
            3,
            54,
            73,
            35,
            14683,
            64377,
            0,
            0.7,
            2.91,
            0,
            122,
            536,
            0,
            2.2,
            8.29,
            0,
            144,
            3,
            0,
            null,
            1435,
            2.7,
            0.011624,
            0.000244,
            1,
            1,
            1,
            1
        ]

Which matches the data in the API for high, low, and average. Thanks, everyone, for your help!

Do you see something specific in the docs that states otherwise?

[mabeatty1978]

No, you’re right. Freudian slip. My brain was on the observations/ endpoint, not the stats

[Best_codes]

No problem We have it all figured out now, I guess. Thanks, all, for your help!