If a plot is required, one can be easily done in a way the text-based forum supports it (as long as the screen width is sufficient):

                                                    Air pressure BME  
+                                                  
     991.28 +---------------------------------------------------------
+--------------------------------------+           
            |          +   ***   +          +          +         +    
+      +          +         +          |           
     991.26 |-+           *******                                     
+                                    +-|           
            | *****      **     ** ****                               
+                                      |           
     991.24 |**  *** *****       *** ****                             
+                                    +-|           
            |*     * ****         **   **                             
+                                      |           
            |*     ******         **   ****  **  *                    
+                                      |           
     991.22 |-+                           **********                  
+                                    +-|           
            |                                 * *  ****               
+**                                    |           
      991.2 |-+                                     *******       ** *
+***                                 +-|           
            |                                          * ******  **** 
+  **                                  |           
 hPa 991.18 |-+                                           **  ****    
+   *                                +-|           
            |                                                  **     
+   ***  ***                           |           
     991.16 |-+                                                       
+     ********                       +-|           
            |                                                         
+      **    ***                       |           
     991.14 |-+                                                       
+            ***                     +-|           
            |                                                         
+              *                       |           
            |                                                         
+              *****                   |           
     991.12 |-+                                                       
+                 ***                +-|           
            |                                                         
+                   **      *          |           
      991.1 |-+                                                       
+                    *********       +-|           
            |          +         +          +          +         +    
+      +          +    ******          |           
     991.08 +---------------------------------------------------------
+--------------------------------------+           
          27.10      27.10     27.10      27.10      27.10     27.10  
+    27.10      27.10     27.10      27.10         
          09:30      09:45     10:00      10:15      10:30     10:45  
+    11:00      11:15     11:30      11:45
[download]

I used Gnuplot to make this:

set title "Air pressure BME"
set datafile separator ";"

set terminal dumb size 120,30
#set output "bme_pressure.png"

set xlabel "Logtime UTC"
set ylabel "hPa"

set xdata time
#set timefmt "%Y-%m-%d"
#set xrange ["03/21/95":"03/22/95"]
set format x "%d.%m\n%H:%M"
set timefmt "%Y-%m-%d %H:%M:S"

set key autotitle columnhead outside

plot "bme_pressureonly.csv" using 1:2 title "" with lines
[download]

The magic line here is:

set terminal dumb size 120,30