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The climate of Central Valley (California - United States of America)
Central Valley is a valley which stretches almost the entire length of the state of California. The valley consists of two parts: Sacramento Valley and San Joaquin Valley. San Joaquin Valley consists of the southern part of Central Valley. This part of the valley is mainly used for agriculture. Among several large cities in this region are: Stockton, Modesto and Fresno. Sacramento Valley consists of the northern part of Central Valley. On this side of the Sacramento Dam the main source of income is also agriculture. Mainly fruit trees and walnut trees are cultivated here. The largest cities in this area are Redding, Sacramento and Davis. Because Central Valley is completely surrounded by mountains there is a high chance of smog in this region.
The northern part of Central Valley has a warm Mediterranean climate the climate in the southern part, in the Fresno region is dry enough to be classified as a Mediterranean Sea climate or even a desert climate in the regions southeast from Bakersfield. Summers here are hot and dry, winters are cool and wet. During the summer daytime temperatures may rise up to 32 degrees Celsius (89.6 degrees Fahrenheit). During heat waves temperatures may even rise up to 46 degrees Celsius (115 degrees Fahrenheit). The rainy season is during early spring. During this period heavy storms and floods are not uncommon. These phenomena mainly occur in the southern part of the San Joaquin Valley and to a lesser degree in Sacramento Valley. Precipitation figures are higher in the northern part of the valley than in the southern part. During the winter subzero temperatures are not uncommon. However, snowfall is uncommon. Central Valley is often shrouded in mist which is known here as Tule Mist.

 

Climate information
The figures below are based on long term weather and climate records. They are an average for Central Valley:

average
 maximum
temperature (įC)

average
minimum

temperature (įC)
average
hours of sunshine

per
day
average days with precipitation
per month
average
mm
precipitation
per month
average
sea
temperature (įC)
January 11 3 5 9 n/a
February 16 5 7 8 n/a
March 18 6 9 9 n/a
April 22 7 11 6 n/a
May 26 10 13 3 n/a
June 31 13 14 2 n/a
July 34 15 14 0 n/a
August 34 15 13 1 n/a
September 31 13 11 2 n/a
October 25 10 10 4 n/a
November 17 6 7 8 n/a
December 11 3 5 9 n/a
= 0-5 mm ● = 6-30 mm ● = 31-60 mm ● = 61-100 mm ● = 101-200 mm ● = over 200 mm
= 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches

More climate information
Climate figures are very useful but donít present a general impression of the climate and the eventual weather circumstances within a certain period. The figures donít always reflect the chance of wintry weather, extreme heat or hurricanes. That is why we offer useful extra climate information for each month of the year:
 

chance of
(very) hot

weather

chance of
(very) cool
weather
chance of
long-term

precipitation
chance of
hurricanes
(cyclones)
chance of
sunny days

UV-index

January
February
March
April
May
June
July
August
September
October
November
December
click here for the explanation of the symbols

Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. ďMore climate infoĒ is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, itís up to the reader to use it to itís benefit.

 

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