Yes, it's frozen, discard and replace it.
I'm not sure about mold but yeast will die at 100 degrees Fahrenheit.
The ideal temperature for yeast growth is 100 to 115 degrees F, but for leavening purposes, the ideal temperature is 80 to 95 degrees F. If the yeast grows too quickly, it will produce large bubble pockets in the bread. Yeast begins to die at 120 degrees F. So it's important to let your yeast dough rise in a spot where the temperature is stable. The cooler the temperature, the slower the yeast grows. It will grow in the refrigerator, but very slowly. I don't know the minimum temperature for it to grow.
76 - 30 = 46 degrees F.
0
Usually, dough rises by the action of yeast producing carbon dioxide as a waste product of it's metabolism. Warmer temperatures ( up to about 106 degrees F ) cause the yeast's metabolism to speed up, above about 106 degrees F yeast will die, so no rise. I think the optimum temperature range is 95 F to 102 F or so. About human body temp.
30 degrees F because 30 degrees C is about 90 degrees F and you would not have much ice on the lake!
(-30) degrees Celsius = -22 degrees Fahrenheit [°F] = [°C] × 9⁄5 + 32
30 degrees Celsius = 86 degrees FahrenheitFormula: [°F] = [°C] × 1.8 + 32
(-30) degrees Fahrenheit = -34.4 degrees Celsius[°C] = ([°F] − 32) × 5⁄9
30 degrees Celsius = 86 degrees Fahrenheit.
30 degrees Fahrenheit is -1.11 degrees Celsius.
30°F is equivalent to -1.1 degrees Celsius.