AZMET offers two types of comma delimited (ASCII format) data files:
     Hourly and Daily.  These files can be loaded into a spreadsheet or
     database such as Lotus, Quatro, Paradox, Fox Pro, DBase, Surfer, etc.
     These data files can also be can also be utilized by a custom program
     written in Basic, Fortran, Pascal or C language.

     In all raw data files, the units of measurement are Metric.

Also please read : How AZMET data is gathered .

In 1999 we changed the depths of our soil temperature sensors : 1999 Soil Temperature Depths .

   DAILY FILES :
========================

DATA POINT
NUMBERS -->    1  2  3  4    5    6    7    8   9   10   11  12 13  14 
               |  |  |  |    |    |    |    |   |    |    |   |  |   | 
DATA -->      92,254,6,40.2,15.1,27.6,69.9,7.9,33.5,3.1,23.45,0,38,22.4,
                              29.3,34.1,24.7,29.1,1.3,.5,14,66,4.2,6.6,12
                                |    |    |    |   |  |   |  |  |   |   |
DATA POINT NUMBERS -->         15   16   17   18  19 20  21 22 23  24  25  

* NOTE: Daily data is actually all on one line per day,
        it has been put on two lines here to label each 
        data point by number.

    Data
    Point     Description
    -------  ------------------------
     1   A    Year (86,87,88,89,90 etc)
     2   B    Day of Year
     3   C    Station Number
     4   D    Air Temp - Max
     5   E    Air Temp - Min
     6   F    Air Temp - Mean
     7   G    RH - Max
     8   H    RH - Min
     9   I    RH - Mean
    10   J    VPD - Mean
    11   K    Solar Rad. - Total
    12   L    Precipitation - Total
    13   M    2" Soil Temp - Max  (moved to  4" in 1999)
    14   N    2" Soil Temp - Min  (moved to  4" in 1999)
    15   O    2" Soil Temp - Mean (moved to  4" in 1999)
    16   P    4" Soil Temp - Max  (moved to 20" in 1999)
    17   Q    4" Soil Temp - Min  (moved to 20" in 1999)
    18   R    4" Soil Temp - Mean (moved to 20" in 1999)
    19   S    Wind Speed - Mean
    20   T    Wind Vector Magnitude for Day
    21   U    Wind Vector Direction for Day
    22   V    Wind Direction Standard Deviation for Day
    23   W    Max Wind Speed
    24   X    Reference ET
    25   Y    Heat Units (30/12.8 C) (86/55 F)



                              STATION  NUMBERS
     --------------------------------------------------------------------
        1 = Tucson          11 = Litchfield        21 = Laveen
        2 = Yuma Valley     12 = Phx. Greenway     22 = Queen Creek
        3 = Yuma Mesa       13 = Marana            23 = Harquahala
        4 = Safford         14 = Yuma N. Gila      24 = Roll
        5 = Coolidge        15 = Phx. Encanto      25 = Ciudad Obregon 
        6 = Maricopa        16 = Eloy              26 = Roll
        7 = Aguila          17 = Dateland
        8 = Parker          18 = Scottsdale
        9 = Bonita          19 = Gila Bend
       10 = Citrus Farm     20 = Mohave

AZMET weather stations record and store data in metric units.
The data contained in our Raw Hourly and Daily files is in metric units.
The word 'English' here does not refer to the language.
'English' units are those units of measurements which were standardized
and used throughout Great Britain.


             
  METRIC                           ABBR.      UNITS
=============                     =================================
Air Temperature................... DegC .... Degrees Centigrade
Relative Humidity................. % ....... Percent
Vapor Pressure Deficit............ KPas .... Kilopascals
Solar Radiation................... MJ/Sq M . MegaJoules per Square Meter
Precipitation..................... MM ...... Millimeters
Soil Temperature.................. DegC .... Degrees Centigrade
Wind Speed........................ M/S ..... Meters per Second
Wind Vector Magnitude............. M/S ..... Meters per Second
Wind Vector Direction............. Deg ..... Degrees
Wind Direction Standard Deviation. Deg ..... Degrees
Reference Evapotranspiration...... MM ...... Millimeters
Heat Units........................ HU ...... Heat Units in Centigrade


 ENGLISH                            ABBR.    UNITS
=============                    ===================================
Air Temperature................... DegF ... Degrees Fahrenheit
Relative Humidity................. % ...... Percent
Vapor Pressure Deficit............ KPas ... Kilopascals
Solar Radiation................... -- ..... Langleys
Precipitation..................... In ..... Inches
Soil Temperature.................. DegF ... Degrees Fahrenheit
Wind Speed........................ MPH .... Miles per Hour
Wind Vector Magnitude............. MPH .... Miles per Hour
Wind Vector Direction............. Deg .... Degrees
Wind Direction Standard Deviation. Deg .... Degrees
Reference Evapotranspiration...... In ..... Inches
Heat Units........................ HU ..... Heat Units in Fahrenheit



                                   METRIC    CONVERSION     ENGLISH
                                    UNITS      ----->        UNITS
                                  ===================================
Air Temperature................... DegC      * 1.8 + 32     DegF
Relative Humidity................. %           -none-       %
Vapor Pressure Deficit............ KPas        -none-       KPas
Solar Radiation................... MJ/Sq M   * 23.89        Langleys
Precipitation..................... MM        * .03937        Inches
Soil Temperature.................. DegC      * 1.8 + 32     DegF
Wind Speed........................ M/S       * 2.237        MPH
Wind Vector Magnitude............. M/S       * 2.237        MPH
Wind Vector Direction............. Deg         -none-       Deg
Wind Direction Standard Deviation. Deg         -none-       Deg 
Reference Evapotranspiration...... MM        * .03937       Inches 
Heat Units........................ (C)       * 1.8           (F)

                                      The '*' symbol means "multiply by"