California is a relatively warm state. The weather rarely drops below freezing in Southern California. However, northern California has very cold winters.
== == Temperatures hover around a January average of 5ºC. Overnight temperatures often drop below freezing point, and ice and frosts are common. The average July temperature is around 15ºC, although temperatures in excess of 30ºC are not unheard of.
Where air planes fly, the temperature is below freezing.
Depending on many different conditions the temperature on the ground during a thunderstorm can be well below freezing (<32F) to over 100F. Inside the thunderhead clouds themselves the temperature at the bottom is above freezing but at the top the temperature is often well below freezing.
It is warmer on the coast by a wide margin. It is often above freezing on the coast in the summer, whereas it remains well below freezing in the interior.
Salt is often put on the sidewalk during or after it snows. This is because salt lowers the freezing point of ice. This is often just enough to melt snow at subfreezing temperatures.
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Summer temperatures in Antarctica are cold, always below freezing and often below zero F. The Antarctic Peninsula, however, may experience temperatures above freezing for short periods during mid-day during summer.
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Antarctica is polar, with average temperatures consistently below freezing, often 100 degrees below freezing. Clothing necessary for any polar environment include layers of garments that protect from wind and cold, while holding body heat close to the body and wicking away moisture, so that it does not freeze against the skin.
== == Temperatures hover around a January average of 5ºC. Overnight temperatures often drop below freezing point, and ice and frosts are common. The average July temperature is around 15ºC, although temperatures in excess of 30ºC are not unheard of.
Where air planes fly, the temperature is below freezing.
The Simpson Desert has a wide fluctuation of seasonal temperatures, and diurnal temperatures. In the cooler months - May to August temperatures are mild during the day, 20-25C, dropping at night often to below freezing. In the summer months temperatures can be consistently above 50C. Rainfall is generally rare, but can occur at any time of year. Whilst there are no averages, a median is around 130mm per- anum.
According to the NPS, "Daytime temperatures are often in the 70s (25C) and occasionally in the 80s (30C) in lower elevations. Nights are usually cool and temperatures may drop below freezing at higher elevations" The area is high in the Northern Rockies, and thus it never gets very hot there.
Depending on many different conditions the temperature on the ground during a thunderstorm can be well below freezing (<32F) to over 100F. Inside the thunderhead clouds themselves the temperature at the bottom is above freezing but at the top the temperature is often well below freezing.
It is warmer on the coast by a wide margin. It is often above freezing on the coast in the summer, whereas it remains well below freezing in the interior.
Salt is often put on the sidewalk during or after it snows. This is because salt lowers the freezing point of ice. This is often just enough to melt snow at subfreezing temperatures.
London has a temperate climate. Summer temperatures can rise to 25-30 although they are typically rather lower than that. Winter temperatures are rarely much below freezing. Snow is a regular occurrence in winter but generally lasts for a few days at most.