Belmont, CA Weather

Posted by: BelmontJeff, 11:24 PM GMT on April 06, 2013 +0
Yet another dry month in 2013. The January-March total of 1.65" is the least amount ever recorded to begin a calendar year, and is only 11.5% of the Normal of 14.29" for this 3-month period. After a decent start to the rainy season in late 2012, the Water-Year total is up to 13.33" but is still only 56.5% of the Normal of 23.59" for the period July 1, 2012-March 31, 2013. The bulk of the precipitation occurred at the beginning and again at the end of the month, resulting in 93.2% of the total.

With the lack of rain, skies were unusually clear, resulting in mild daytime temperatures and cooler minimum temperatures (until the last few days of the month). The diurnal average was 21.2°, higher than a normal March. The greatest diurnal range of 33.5° occurred on the 12th, the least diurnal range was 9.8° on the 6th.

The wind was dominant from the west even more than usual. All but 4 days saw peak wind gusts of 10 MPH or higher, topping out at 30 MPH on the 6th as a storm system moved through the area.

Heavy Fog occurred on 4 days, scattered throughout the month.








Updated: 7:13 PM GMT on April 09, 2013   Permalink | A A A
Posted by: BelmontJeff, 4:46 AM GMT on April 06, 2013 +0
Rainbow from shower just after sunrise.
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Posted by: BelmontJeff, 4:01 PM GMT on March 17, 2013 +0
Sunrise burning off the morning fog.
Categories:Fog
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Posted by: BelmontJeff, 8:41 PM GMT on March 16, 2013 +0
The very dry weather continues here in NorCal. Through March 15th, here in Belmont, we have received only 1.34" of rain over the first 74 days of 2013. Monthly totals: January 0.35", February 0.57", and March 0.42" (so far). We did quite well with rainfall Oct.-Dec. 2012 so the current Water Year (July 1, 2012-June 30, 2013) could be a lot worse. The Water Year total is currently at 13.02". We have a long way to go in catching our average annual total of 26.33" and...
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Posted by: BelmontJeff, 6:19 PM GMT on February 24, 2013 +0
After a surprise overnight shower yielding 0.02", the remainder of Saturday was clear and mild, with temps topping out around 60° under full sun. This shower was probably the month's final rainfall, which has, thus far, totaled 0.57". Combined with January's 0.35", our 2013 total is a very dry 0.92", only 8.6% of the 30-year Normal of 10.66" for these combined months.

Looking further back in the current Water Year (July 1, 2012-June 30, 2013), we are fa...
Updated: 6:53 PM GMT on February 24, 2013   Permalink | A A A

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About BelmontJeff
I live in the San Francisco Bay Area and have always had a fascination with weather, its extremes, and stats. I'm also in CoCoRaHS: Belmont 0.7 WSW.

Personal Weather Stations
Belmont - Arroyo View
Belmont, CA
Elevation: 482 ft
Temperature: 50.0 °F
Dew Point: 38.3 °F
Humidity: 64%
Wind: Calm
Wind Gust: 1.0 mph
Updated: 7:55 AM PDT on May 22, 2013