Page 28 of 52
Field Offset
Size Dash
Value
Explanation
Inside Humidity
22
1
255
Inside Humidity at the end of the archive period
Outside Humidity
23
1
255
Outside Humidity at the end of the archive period
Average Wind Speed
24
1
255
Average Wind Speed over the archive interval. Units
are (MPH)
High Wind Speed
25
1
0
Highest Wind Speed over the archive interval. Units
are (MPH)
Direction of Hi Wind Speed
26
1
32767
Direction code of the High Wind speed. 0 = N, 1 =
NNE, 2 = NE, … 14 = NW, 15 = NNW, 255 =
Dashed
Prevailing Wind Direction
27
1
32767
Prevailing or Dominant Wind Direction code. 0 = N,
1 = NNE, 2 = NE, … 14 = NW, 15 = NNW, 255 =
Dashed
Firmware before July 8, 2001 does not report
direction codes of 255. Software should substitute
the dash value whenever the High Wind Speed is
zero.
Average UV
28
1
255
Average UV Index. Units are (UV Index / 10)
ET
29
1
0
ET accumulated over the last hour. Only records "on
the hour" will have a non-zero value. Units are (in /
1000)
Invalid data
30
1
This byte is contains invalid data in Rev A data
records
Soil Moistures
31
4
255
4 Soil Moisture values. Units are (cb)
Soil Temperatures
35
4
255
4 Soil Temperatures. Units are (°F + 90)
Leaf Wetnesses
39
4
255
4 Leaf Wetness values. Range is 0 – 15
Extra Temperatures
43
2
32767
2 Extra Temperature values. Units are (°F + 90)
Extra Humidities
45
2
255
2 Extra Humidity values
Reed Closed
47
2
0
Count of the number of time the anemometer reed switch
was closed
Reed Opened
49
2
0
Count of the number of time the anemometer reed switch
was opened
Unused Byte
51
1
Contents of the Rev "B" archive record.
Field Offset
Size Dash
Value
Explanation
Date Stamp
0
2
Not applicable These 16 bits hold the date that the archive was
written in the following format:
Year (7 bits) | Month (4 bits) | Day (5 bits) or:
day + month*32 + (year-2000)*512)
Time Stamp
2
2
Not applicable Time on the Vantage that the archive record was
written:
(Hour * 100) + minute.
Outside Temperature
4
2
32767
Either the Average Outside Temperature, or the
Final Outside Temperature over the archive period.
Units are (°F / 10)
High Out Temperature
6
2
-32768
Highest Outside Temp over the archive period.
Low Out Temperature
8
2
32767
Lowest Outside Temp over the archive period.
Rainfall
10
2
0
Number of rain clicks over the archive period
High Rain Rate
12
2
0
Highest rain rate over the archive period, or the rate
shown on the console at the end of the period if there
was no rain. Units are (rain clicks / hour)
Barometer
14
2
0
Barometer reading at the end of the archive period.
Units are (in Hg / 1000).
