2019
       Y-12 Mixing Height
               Average Std Dev       By Local Daylight Time       By Local Daylight Time and Season
       January   440.3   427.1       Hour   Annual  Std Dev  Winter Avg Spring Avg Summer Avg   Fall Avg
       February  539.3   521.5       1       366.5    209.8       416.0      363.1      294.3      394.0
       March     755.6   679.8       2       389.6    321.5       448.2      424.1      294.0      393.4
       April     936.8   823.1       3       368.0    254,2       421.1      379.3      295.4      377.7
       May      1098.1  1314.8       4       375.5    265.8       429.9      412.8      288.1      372.3
       June     1170.4  1535.0       5       368.0    249.5       424.4      406.6      288.4      353.6
       July     1137.2  1379.2       6       355.0    249.1       387.3      396.7      283.6      353.2
       August   1041.5  1315.5       7       355.1    286.4       359.6      387.7      296.6      376.8
       September 980.9  1316.2       8       357.0    268.7       340.5      409.6      332.3      345.0
       October   659.7   693.7       9       403.9    267.1       365.6      498.3      375.0      374.5
       November  540.9   373.8       10      635.3    595.3       418.0      773.9      895.6      446.7
       December  493.5   329.5       11     1115.5   1071.5       510.4     1163.0     1910.2      862.7
                                     12     1379.3   1169.3       582.8     1517.8     2181.8     1215.9 
       Annual   812.9                13     1640.9   1298.0       764.6     1759.8     2592.6     1425.2
       Max     7902.7                14     1760.3   1321.3       823.7     1888.2     2719.3     1587.7
       Min      150.0                15     1870.1   1345.3       911.5     2025.7     2881.5     1638.4
       Std Dev 1022.5                16     1887.7   1379.7       997.3     2077.6     2773.6     1680.6
                                     17     1931.9   1492.4       989.7     2050.8     3043.3     1620.2
                                     18     1525.1   1523.1       609.1     1715.8     2681.2     1069.5
                                     19      615.4    842.8       404.4      628.4      923.7      502.5
                                     20      359.7    289.4       386.0      330.1      289.1      434.9
                                     21      361.0    260.6       385.8      354.0      280.1      425.4
                                     22      359.2    259.0       379.6      383.4      284.6      389.9
                                     23      365.9    298.4       399.0      380.0      282.7      403.0
                                     24      364.5    217.2       396.2      382.4      288.7      391.9
                                                 
       2019
       Synoptic Pressure Gradient     ORNL-NAM Boundary Layer Wind (kts)  ORNL-NAM Boundary Layer Wind (kts)
       mb/km   Average  Std Dev       850-mb    Average  Std Dev          925-mb   Average   Std Dev
       January   0.012    0.008       January    23.4     12.3            January   14.9       9.3
       February  0.012    0.008       February   26.5     14.0            February  18.2       9.1
       March     0.012    0.007       March      20.1     11.9            March     15.0       8.1
       April     0.009    0.006       April      21.2     11.7            April     15.5       8.8
       May       0.006    0.003       May        16.6      8.1            May       13.3       6.9
       June      0.006    0.004       June       15.9      8.5            June      12.9       7.1
       July      0.004    0.003       July        9.7      6.3            July       9.2       5.9
       August    0.004    0.003       August      9.3      6.1            August     7.8       4.1
       September 0.005    0.003       September   7.9      5.1            September  8.0       4.4
       October   0.009    0.007       October    15.1     11.2            October   11.7       8.4
       November  0.010    0.008       November   18.4      9.4            November  13.7       8.1
       December  0.012    0.008       December   23.6     19.4            December  16.1       9.0
                                      
       Annual    0.008    0.007       Annual     17.3     12.4            Annual    13.0       8.2