The nailer does not have a published temperature range. There is a specific temperature tolerance for this nailer. That said, it’s important the user follow the steps outlined in the manual to ensure the best chance at proper performance in harsh cold conditions.

It's highly recommended below: 

Cold Weather Operation WARNING: Read the section titled Important Safety Instructions at the beginning of this manual. Always wear eye and ear protection when operating this tool. Keep the nailer pointed away from yourself and others. For safe operation, complete the following procedures and checks before each use of the nailer. When operating tools at temperatures below freezing, complete preparation procedures outlined above and follow the directions below. 1. Make sure compressor tanks have been properly drained prior to use. Always drain the compressor tanks at least once daily while using the nailer. This is especially important in cold weather because any moisture in the air in the tanks will condense in the cold temperature. English 11 2. Keep the tool as warm as possible prior to use. 3. Make certain all fasteners have been removed from canister. 4. Put 5 to 7 drops of DeWALT Pneumatic Tool Oil or winter weight pneumatic oil containing ethylene glycol in the end cap. 5. Lower air pressure to 80 psi (5.5 bar) or less. 6. Reconnect air and load nails into canister. 7. Actuate the tool 5 or 6 times into scrap lumber to lubricate o-rings. 8. Turn pressure up to operating level (not to exceed 120 psi) and use tool as normal. 9. Re-lubricate with DeWALT Pneumatic Tool Oil or winter weight pneumatic oil containing ethylene glycol in the end cap at least twice a day or after 4 hours of use.