PILOTSMITH COLD TEMPERATURE RESTRICTIONS (Summary) :
Cirrus, or Cessna WITH Winterization Kit installed:
Below 0⁰F (M18)→ DO NOT FLY
0⁰F - 9⁰F (M17-M13)→ No pattern work, stalls, Emergency Procedures, or continuous high to low throttle.
Remove kit above 20⁰F (M7)
Observe limitations in AFM or POH as appropriate
Cessna WITHOUT Winterization Kit or not installed:
Below 10⁰F (M12)→ DO NOT FLY
10⁰F - 20⁰F (M12-M7)→ No pattern work, stalls, Emergency Procedures, or continuous high to low throttle.
Be sure to use cowl cover and plug engine heater in if able (T's with access to power) after parking, below 40⁰F (4)