diff --git a/definitions/grib2/name.legacy.def b/definitions/grib2/name.legacy.def
index 21a90fb5d..b7be70b1a 100644
--- a/definitions/grib2/name.legacy.def
+++ b/definitions/grib2/name.legacy.def
@@ -186,3 +186,15 @@
  parameterCategory = 0 ;
  parameterNumber = 2 ;
 }
+#Maximum temperature
+'Maximum temperature' = {
+ discipline = 0 ;
+ parameterCategory = 0 ;
+ parameterNumber = 4 ;
+}
+#Minimum temperature
+'Minimum temperature' = {
+ discipline = 0 ;
+ parameterCategory = 0 ;
+ parameterNumber = 5 ;
+}
diff --git a/definitions/grib2/paramId.legacy.def b/definitions/grib2/paramId.legacy.def
index 2b26c1398..d7dfd01da 100644
--- a/definitions/grib2/paramId.legacy.def
+++ b/definitions/grib2/paramId.legacy.def
@@ -186,3 +186,15 @@
  parameterCategory = 0 ;
  parameterNumber = 2 ;
 }
+#Maximum temperature
+'3015' = {
+ discipline = 0 ;
+ parameterCategory = 0 ;
+ parameterNumber = 4 ;
+}
+#Minimum temperature
+'3016' = {
+ discipline = 0 ;
+ parameterCategory = 0 ;
+ parameterNumber = 5 ;
+}
diff --git a/definitions/grib2/shortName.legacy.def b/definitions/grib2/shortName.legacy.def
index ffd6469d2..f716c3179 100644
--- a/definitions/grib2/shortName.legacy.def
+++ b/definitions/grib2/shortName.legacy.def
@@ -186,3 +186,15 @@
  parameterCategory = 0 ;
  parameterNumber = 2 ;
 }
+#Maximum temperature
+'tmax' = {
+ discipline = 0 ;
+ parameterCategory = 0 ;
+ parameterNumber = 4 ;
+}
+#Minimum temperature
+'tmin' = {
+ discipline = 0 ;
+ parameterCategory = 0 ;
+ parameterNumber = 5 ;
+}
diff --git a/definitions/grib2/units.legacy.def b/definitions/grib2/units.legacy.def
index 3a102bd06..d540ec19c 100644
--- a/definitions/grib2/units.legacy.def
+++ b/definitions/grib2/units.legacy.def
@@ -186,3 +186,15 @@
  parameterCategory = 0 ;
  parameterNumber = 2 ;
 }
+#Maximum temperature
+'K' = {
+ discipline = 0 ;
+ parameterCategory = 0 ;
+ parameterNumber = 4 ;
+}
+#Minimum temperature
+'K' = {
+ discipline = 0 ;
+ parameterCategory = 0 ;
+ parameterNumber = 5 ;
+}