diff --git a/fhem/FHEM/92_FileLog.pm b/fhem/FHEM/92_FileLog.pm
index cb7611f88..ffe15fd61 100755
--- a/fhem/FHEM/92_FileLog.pm
+++ b/fhem/FHEM/92_FileLog.pm
@@ -599,7 +599,7 @@ FileLog_Get($@)
   # last2: last delta value recorded (for the very last entry)
   # last3: last delta timestamp (d or h)
   my (@d, @fname);
-  my (@min, @max, @sum, @cnt, @lastv, @lastd, @mind, @maxd);
+  my (@min, @max, @sum, @cnt, @lastv, @lastd, @mind, @maxd, @firstv, @firstd);
 
   for(my $i = 0; $i < int(@a); $i++) {
     my @fld = split(":", $a[$i], 4);
@@ -635,6 +635,8 @@ FileLog_Get($@)
     $cnt[$i] = 0;
     $lastv[$i] = 0;
     $lastd[$i] = "undef";
+    $firstv[$i] = 0;
+    $firstd[$i] = "undef";
     $mind[$i] = "undef";
     $maxd[$i] = "undef";
   }
@@ -729,6 +731,10 @@ RESCAN:
       }
       $sum[$i] += $val;
       $cnt[$i]++;
+      if($firstd[$i] eq "undef") {
+        $firstv[$i] = $val;
+        $firstd[$i] = $dte;
+      }
       $lastv[$i] = $val;
       $lastd[$i] = $dte;
       map { $cnt[$i]++; $min[$i] = 0 if(0 < $min[$i]); } @missingvals;
@@ -818,6 +824,8 @@ RESCAN:
     $data{"cnt$j"} = $cnt[$i] ? $cnt[$i] : "undef";
     $data{"currval$j"} = $lastv[$i];
     $data{"currdate$j"} = $lastd[$i];
+    $data{"firstval$j"} = $firstv[$i];
+    $data{"firstdate$j"} = $firstd[$i];
     $data{"mindate$j"} = $mind[$i];
     $data{"maxdate$j"} = $maxd[$i];
     $data{"lastraw$j"} = $h->{last2} if($h->{last2});
diff --git a/fhem/FHEM/98_SVG.pm b/fhem/FHEM/98_SVG.pm
index 2b0736951..b56ce8fe4 100755
--- a/fhem/FHEM/98_SVG.pm
+++ b/fhem/FHEM/98_SVG.pm
@@ -1105,7 +1105,8 @@ SVG_getData($$$$$)
 {
   my ($d, $f,$t,$srcDesc,$showData) = @_;
   my (@da, $ret, @vals); 
-  my @keys = ("min","max","avg","cnt","currval","mindate","maxdate","lastraw");
+  my @keys = ("min","mindate","max","maxdate","currval","currdate",
+              "firstval","firstdate","avg","cnt","lastraw");
 
   foreach my $src (@{$srcDesc->{order}}) {
     my $s = $srcDesc->{src}{$src};
@@ -2331,8 +2332,10 @@ plotAsPng(@)
       expression, so you have access e.g. to the Value functions.<br><br>
 
       If the plotmode is gnuplot-scroll or SVG, you can also use the min, max,
-      mindate, maxdate, avg, cnt, sum, currval (last value) and currdate (last
-      date) values of the individual curves, by accessing the corresponding
+      mindate, maxdate, avg, cnt, sum, firstval, firstdate, currval (last
+      value) and currdate (last date) values of the individual curves, by
+      accessing the corresponding
+
       values from the data hash, see the example below:<br>
 
       <ul>