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Climate and Average Weather Year Round in Upland California, United States. In Upland, the summers are hot, arid, and clear and the winters are long, cool, and partly cloudy. Over the course of the year, the temperature typically varies from 43°F to 93°F and is rarely below 36°F or above 101°F.
Upland, California - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data.
Climate and Average Weather Year Round in Upland United States. In Upland, the summers are warm, humid, and wet; the winters are very cold and snowy; and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 25°F to 85°F and is rarely below 12°F or above 92°F.
average temperature by month Upland. With an average of 25.0 °C | 77.1 °F, August is the warmest month. On average, the month of December is considered to be the coldest time of year with temperatures averaging at around 10.0 °C | 50.0 °F.
Hottest Month: August (80 °F avg) Coldest Month: December (55 °F avg) Wettest Month: February (2.14" avg) Windiest Month: May (12 mph avg) Annual precip. 8.87"
Based on annual weather averages for Upland, the best month to go for holiday is April and May. The temperature hovers around 17°c. The table below displays max and min temperature and rain data for the whole year as an average taken from last 12+ years of historical data for Upland. Average Weather in Upland in August.
