July is the hottest month all over Northern Hemisphere. Exceptions being the Monsoon lands and the west coast of US notably the cities of San Francisco and Los Angeles in California. In the southern Hemisphere, it’s the coldest month. Let us discuss it in a bit more detail.
Conditions in Northern Hemisphere
All over the Northern Hemisphere, July records the highest temperatures of year. In the temperature buckle temperatures up to 95 F has to be expected. Even as far North as 60 N, temperatures of over 80 F are the norm. The nigh time lows are around 75 F in the tropical belt, 65 in temperate zone and 55 F in the arctic zone.
The monsoon lands are a major exception to this general rule, however. Here June is the hottest Month, particularly in South Asia where India and Pakistan are situated. The cool monsoon winds hit most parts of the Indian sub-continent at the end of June and prevent additional rising of the temperatures. As a result July is much cooler than if there were no monsoon.
The second exception is the Californian coast, here due the trendy pacific current, the temperatures grow very slowly and reach their peak by the month of August.
As the seasons are inverse in southern hemisphere, so the areas located here are passing through their mid-winter. The major difference being that the winter is much milder than the winter of the Northern Hemisphere since this hemisphere has no vast continents such as Asia and no station is located very far away from the oceans. Thus the continental effect isn’t so pronounced and the temperatures are very mild. For instance, if we have a close look at some of the famous cities located in Southern Hemisphere, we discover that the winter is much less severe than that of the Northern Hemisphere. Sydney, in Australia records a high of 60 F in July (Animal-Pros) and a low of 40 F; that is quite equable. Even at Auckland, in New Zealand, which is located further south, the day time temperature rarely falls below 50 F and the nights are around 35 F.
In Summary, July is the hottest month in the Northern Hemisphere and the coldest in the Southern Hemisphere. The temperatures recorded at a particular station is extremely determined by its distance from the closest water body may it be a sea or an ocean.