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  2. Napa, California - Wikipedia

    en.wikipedia.org/wiki/Napa,_California

    The hottest temperature recorded in Napa was 114 °F (46 °C) on September 6, 2022, while the coldest temperature recorded was 14 °F (−10 °C) on December 22, 1990. The most rainfall in one year was 51.24 inches (1,301 mm) in 1983 and the least amount of rainfall was 6.74 inches (171 mm) in 2013.

  3. List of cities by average temperature - Wikipedia

    en.wikipedia.org/wiki/List_of_cities_by_average...

    This is a list of cities by average temperature (monthly and yearly). The temperatures listed are averages of the daily highs and lows. Thus, the actual daytime temperature in a given month may be considerably higher than the temperature listed here, depending on how large the difference between daily highs and lows is.

  4. Climate of California - Wikipedia

    en.wikipedia.org/wiki/Climate_of_California

    The highest reliably recorded temperature in the world, [6] [7] 134 °F (56.7 °C), was recorded in Death Valley on July 10, 1913. Temperatures of 130 °F (54 °C) or higher have been recorded as recently as 2005. The 24-hour average July temperature in Death Valley is 101.8 °F (38.8 °C) (1981–2010 NCDC Normals).

  5. St. Helena, California - Wikipedia

    en.wikipedia.org/wiki/St._Helena,_California

    The National Weather Service has a cooperative weather station in St. Helena. Winters are cool and wet, while summers have hot days and cool nights with little precipitation. Average temperatures in December, the coldest month, range from 58.3 °F (14.6 °C) to 39.6 °F (4.2 °C).

  6. List of countries by average yearly temperature - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    This is a list of countries and sovereign states by temperature. Average yearly temperature is calculated by averaging the minimum and maximum daily temperatures in the country, averaged for the years 1991 – 2020, from World Bank Group , derived from raw gridded climatologies from the Climatic Research Unit .

  7. Climate of San Diego - Wikipedia

    en.wikipedia.org/wiki/Climate_of_San_Diego

    Average monthly temperatures range from 57.3 °F (14.1 °C) in January to 72 °F (22 °C) in August. [citation needed] On average, 344 days a year are hotter than 60 °F (16 °C), but only 25 days are hotter than 80 °F (27 °C).

  8. Winkler index - Wikipedia

    en.wikipedia.org/wiki/Winkler_index

    How data are averaged (i.e., hourly, daily, or monthly) is also very important. While weather stations today can average data to an hour, a minutes or even seconds, historical data used to calculate growing degree-days has been done mostly on daily or monthly averages (the table above was done using monthly climatological normals).

  9. American Canyon, California - Wikipedia

    en.wikipedia.org/wiki/American_Canyon,_California

    American Canyon (previously known as Napa Junction [6]) is a city located in southern Napa County, ... with no average monthly temperatures above 71.6 °F (22 °C).