Fix erroneous F-to-C offset.

diff --git a/icu4c/source/data/misc/units.txt b/icu4c/source/data/misc/units.txt
index de5c75abd7a670d1f7cd2366eeaeaa9723fd9f57..d029e9005c8bd99ff8ae6b64a8dc79edf1767415 100644 (file)
--- a/icu4c/source/data/misc/units.txt
+++ b/icu4c/source/data/misc/units.txt
@@ -29,7 +29,7 @@ supplementalData:table(nofallback){
         celsius{
             fahrenheit:table{
                 factor{"5/9"}
-                offset{"273.15"}
+                offset{"-160/9"}
             }
             kelvin:table{
                 factor{"1"}