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The driest months, July and August, have on average two days of precipitation (4–6 mm (0.16–0.24 in) of which 50% is drizzle), and the wettest months, November and December, have on average 12–15 days of precipitation and around 127 mm (5.0 in). [20] December is the rainiest month of which half the days receive some form of precipitation.
The following list presents the official temperature extremes recorded in Portugal by the Portuguese meteorological ... 18 November 2007 −10.8 °C (12.6 °F) [28 ...
Porto has generally moderate temperatures. The average annual high is around 20 °C (68 °F) and average low around 11 °C (52 °F). The climate is also only mildly seasonal, from a maxima of 14 °C (57 °F) in January to 25–26 °C (77–79 °F) in August, while minima is around 5–6 °C (41–43 °F) in January and 15–16 °C (59–61 °F) in July and August.
The standard measuring conditions for temperature are in the air, 1.25 metres (4.1 ft) to 2.00 metres (6.6 ft) above the ground, [5] and shielded from direct sunlight intensity (hence the term x degrees "in the shade"). [6]
The temperature on a summer day may be in the 80s or 90s. So why does it feel so much hotter? That's the heat index. Here's how it works.
When Kari Leibowitz moved to the Arctic in 2014, she braced herself for the impact of long, dark, freezing winters. The temperature in Tromsø, Norway, plunges to subarctic levels on the coldest ...
A heat wave is usually measured relative to the usual climate in the area and to normal temperatures for the season. [1]: 2911 Temperatures that humans from a hotter climate consider normal, can be regarded as a heat wave in a cooler area. This would be the case if the warm temperatures are outside the normal climate pattern for that area. [2]
Last year, a third of Americans bought their Christmas trees during the week after Thanksgiving and another 33% made the purchase during the first week of December, according to a poll of 1,499 ...