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Climate Watch Main Page All data in the Climate Watch is provisional and subject to change. Monthly Weather Summaries Main Page January 2005 February 2005 March 2005 April 2005 May 2005 June 2005 July 2005 August 2005 September 2005 For 2004 summaries, click here |
MONTHLY WEATHER SUMMARY By Jan Null Golden Gate Weather Services September 2005 Read the full California Climate Watch newsletter here: PDF format September 2005 was a cool month statewide with all basins checking in with below normal average maxima, minima and mean readings for the month as a series of upper levels troughs kept relatively cool air over the region. The largest negative anomalies were in the far north where the mean temperature anomalies were -3.5 degrees for the North Coast and -4.5 for the Northeast. Both of these regions had 4.4 degree negative anomalies for their average max. On the Central Coast the maxima was -4.4 degrees while the mean anomaly was -2.8, held up in part by extensive stratus and relatively mild minima. The Northeast and San Joaquin had the largest negative anomalies of their average minima at -4.5 and -4.2 degrees respectively. The month was relatively dry except for a surge of subtropical moisture from Eastern Pacific Hurricane Max that spread showers and thundershowers across much of southern and south Central California. Thunderstorms in the San Joaquin Valley produced 3/4 inch hail and a wind gust to 64 mph. Gusty winds from the storms also produced blowing dust with visibilities reduced to 100 feet. Coalinga received .93 inches of rain and Yosemite had .60 inches. In southern California Big Bear Lake received .83 inches while much of the LA Basin was between 1/4 and 1/3 inch with a number of daily records. Another surge of tropical moisture results in a few more South Coast showers on the 27th when San Luis Obispo set a record for the day with .05 inches. The mild pattern led to a scarcity of maximum temperature records. On the 28th warm Santa Ana winds not only fueled many wildland fires in the south state but also pushed the mercury into record territory. Ramona had a record for the day of 101 with Escondido setting a record 99. Camarillo and Oxnard had record maxima also. Ramona set another record on the 29th with 103 degrees while Santa Barbara set a record with 101 degrees. There were a number of record minimums for the month. Ramona was a record setter again with 45 on the 2nd and again on the 6th, followed by 44 degrees on the 7th. September 6th also saw Oceanside break the 52 year-old record for the date with 52 degrees. The 24th through the 26th saw another spate of record minima with another blast of mild air. Eureka's 42 degrees on the 24th set a record as did 38 in Paso Robles and 46 degrees in Santa Barbara. On the 25th Oakland broke their record for the date with 51, and on the 26th Mount Shasta City dipped to 30. Page last updated 10/17/05. |
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