Since 1906, 67% of the years have had less than average rainfall in downtown Ojai. Average rainfall over this period was 21.33 inches. Since 1906, annual rainfall in downtown Ojai has ranged from a low of 6.88 inches in 1924 to a high of 49.20 inches in 1998-a sevenfold variation. Rainfall Average and Median (inches/year) The rainfall totals from the watershed’s three climate zones shown in the table below illustrate that, on average, the watershed’s upper areas receive over twice as much rainfall, almost 20 inches more, as its lower areas. The Ventura River watershed’s rainfall patterns vary geographically. Snowfall is generally minimal and short-lived. Rainfall typically occurs in just a few significant storms each year, which can come any time between October 15 and April 1, with 90% of the rainfall occurring between November and April. Rainfall is highly variable in the watershed-seasonally, and from year to year. Source: Ventura River Watershed Management Plan Rainfall Wet (blue) and Dry (orange) Periods in the Ventura River Watershed The storage capacity of Lake Casitas was designed by the Bureau of Reclamation based upon the longest dry period on record, the years 1944/45 to ’65. The Ventura River watershed has long experienced cycles of wetter years and drier years. Wet and Dry Cycles in the Ventura River Watershed Temperature and Precipitation, One-Month Outlook (Note: agricultural water demand is not included in these reports.) Complete (statewide) reports can be found at the State Water Resources Control Board's Conservation Reporting website. This report is an excerpt of the data for Ventura River watershed’s three large urban water suppliers: Casitas Municipal Water District, Ventura Water, and Golden State Water Company–Ojai. Monthly Water Conservation Data (June 2014 – Feb 2015) The state requires large urban water suppliers to report on their urban water production monthly. Note: "Normal" in this report is based upon the 35-year base period of 1957-1992.
Upper Ventura River Groundwater Basin Level Monthly report by Ventura River Water District (scroll to bottom of page, on left).Īnnual Rainfall To Date Automated daily report. Lake Casitas Water Level Monitored daily. The order outlines restrictions intended to achieve a statewide 25% reduction in potable urban water usage (compared to 2013) through February, 2016.Įmergency Regulations (schedule, documents, etc.): State Water Board Drought Year Water Actions websiteĭrought Breaking News: Department of Water Resources Drought Information website Watershed Conditions On Apthe Governor issued an Executive Order (B-29-15) outlining actions needed to respond to the severe drought in California, including - for the first time in California history - state requirements for mandatory cut-backs.
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