2020
       Y-12 Mixing Height
                Average Std Dev     By Local Daylight Time       By Local Daylight Time and Season
       January    596.9   373.5      Hour   Annual  Std Dev  Winter Avg Spring Avg Summer Avg   Fall Avg
       February   599.1   305.5      1       449.5    182.3       509.6      517.0      390.6      380.5
       March      645.0   406.8      2       462.3    203.2       565.8      496.6      392.4      394.8
       April      875.1   773.3      3       463.7    216.2       565.3      509.4      385.2      395.4
       May        929.7   928.4      4       444.5    157.0       514.2      489.8      375.0      399.5
       June       981.4   970.3      5       440.8    193.8       545.4      463.5      371.0      384.0
       July       821.9   721.3      6       429.8    204.9       517.7      446.5      364.9      390.5
       August     857.7   817.3      7       424.9    204.5       478.5      450.6      378.6      392.1
       September  666.2   601.6      8       430.1    196.2       460.2      473.7      407.9      378.6
       October    633.1   514.2      9       484.7    286.4       491.6      506.1      528.5      412.1
       November   606.7   414.3      10      647.5    493.6       535.7      627.7      857.8      566.7
       December   618.9   350.6      11      906.1    640.9       629.1      960.6     1220.6      810.0
                                     12     1187.0    818.5       718.6     1423.4     1605.6      993.1
       Annual   736.2                13     1298.3    849.6       769.5     1525.0     1748.6     1142.7
       Max     6170.2                14     1390.2    864.9       818.7     1598.1     1897.0     1239.3
       Min       80.0                15     1448.6    844.2       868.6     1647.2     2015.0     1255.2
       Std Dev  654.5                16     1435.6    886.4       863.9     1627.9     1946.7     1296.2
                                     17     1322.3    849.9       875.3     1522.6     1682.1     1202.7
                                     18     1033.3    843.3       609.5     1037.7     1649.4      829.6
                                     19      640.7    549.2       482.1      664.0      944.2      468.7
                                     20      485.0    351.9       525.2      550.5      479.1      389.0
                                     21      448.4    231.8       530.9      477.5      429.5      355.3
                                     22      467.9    285.6       551.4      524.8      411.8      383.6
                                     23      468.1    206.3       540.1      526.8      400.7      404.7
                                     24      456.9    201.7       549.0      515.5      380.7      382.9
                                             

       2020
       Synoptic Pressure Gradient     Y-12-NAM Boundary Layer Wind (kts)  Y-12-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   26.0     13.6             January   17.5     10.1 
       February  0.012    0.007       February  24.6     13.0             February  18.3      9.7
       March     0.011    0.006       March     23.0     11.2             March     18.8      9.7
       April     0.011    0.007       April     20.5     13.6             April     15.2      9.2
       May       0.008    0.004       May       17.3      9.1             May       13.7      7.0
       June      0.006    0.004       June      14.9      9.0             June      12.9      7.4
       July      0.003    0.003       July       9.1      5.2             July       8.0      4.8
       August    0.005    0.003       August    10.8      8.1             August     8.5      6.3
       September 0.008    0.005       September 12.8      7.3             September 11.5      6.7
       October   0.008    0.006       October   15.3      8.5             October   12.3      6.9
       November  0.011    0.008       November  17.7     11.8             November  14.0      8.8
       December  0.012    0.008       December  22.7     11.2             December  15.7      8.2
                                      
       Annual    0.009    0.007       Annual    17.9     11.7             Annual    13.9      8.7