Average daytime summer temperatures range from approximately 55 to 78 degrees Fahrenheit (13 to 26 degrees Celsius); average daytime winter temperatures are about 5 to 30 degrees Fahrenheit (−15 to −1 degree Celsius). Anchorage has a frost-free growing season that averages slightly over 100 days. Average January low and high temperatures at Ted Stevens Anchorage International Airport (PANC) are 11 / 23 °F (−12 / −5 °C) with an average winter snowfall of 75.5 inches (192 cm). The weather on any given day and indeed for entire seasons can be very unpredictable.