Tuesday, March 11, 2014

BLOG POST #1

Weather and Climate Data Blog Post #1

Location:  Stockton, California USA
Latitude: 37.97 degrees N     
Longitude:  121.31 degrees W     
Elevation:  13ft (4m)
Station Location:  Garden Acres Weather Station           (www.wunderground.com)

Geographic Setting:

     The city of Stockton, CA has a total area of 64.8 square miles (168 km2).  61.7 square miles (160 km2) is land and 3.1 square miles (8.0 km2) (4.76%) is composed of water.  The city is located in the northern area of the San Joaquin Valley.  It sits 50 miles south of the state capital of Sacramento.  Stockton's climate is classified as a Mediterranean climate.  Characteristics of this climate include hot and dry summers and mild winters.  During the winter months there are approximately 20 days of at or below freezing temperatures.  The San Joaquin Valley also experiences a thick dense ground fog during the winter months.  The fog is named Tule after the tule grass wetlands.  July is generally the warmest month with December being the coldest.  January is the month that Stockton sees the most precipitation throughout the year.  The hottest temperature on record is 112 degrees Fahrenheit in 2006.  The coldest temperature on record is 13 degrees Fahrenheit in 1989.  The estimated Bowen Ratio's differ from the city to the agricultural areas.  The city has a Bowen ratio of approximately 1.5 and the rural areas have an approximate Bowen Ratio of .5 (irrigated land) - 1.0 (non-irrigated land).

General Info:  http://en.wikipedia.org/wiki/Stockton,_California
Bowen Ratio: http://www.arb.ca.gov/ch/communities/ra/westoakland/documents/appendixb_final.pdf  (pg. B-12)

Average Monthly Temperatures/Precipitation for Stockton, CA

Month High  (°F) Low (°F) Precip. (in.)
January 56 38 3.41
February 63 41 3.2
March 68 45 2.68
April 74 47 1.41
May 82 53 0.56
June  89 57 0.1
July 94 59 0
August 93 58 0.02
September 90 56 0.29
October 80 50 0.99
November 67 42 2.16
December 57 37 3.05
Source:  http://www.weather.com/weather/wxclimatology/monthly/USCA1100

Average Temperatures/Precipitation for Sacramento, CA

 

Source: http://www.world-climates.com/city-climate-sacramento-california-usa-north-america/

As there was no graph for Stockton, CA; I decided to use the Sacramento, CA graph as it was the nearest locale.  As you can see there is an inverse relationship of temperature to precipitation.  The warmer the temperature equals lesser precipitation and vice versa.