My CRS317 running v6.44 seems to be missing the temperature oid .1.3.6.1.4.1.14988.1.1.3.10.0 when i run snmpget it returns No Such Object available on this agent at this OID. i seem to recall that this worked in a prevoius versions it does show when i run /system health print oid output below.
/system health print oid
temperature: .1.3.6.1.4.1.14988.1.1.3.10.0
cpu-temperature: .1.3.6.1.4.1.14988.1.1.3.11.0
psu1-state: .1.3.6.1.4.1.14988.1.1.3.15.0
psu2-state: .1.3.6.1.4.1.14988.1.1.3.16.0