October 2013 - Belmont, CA

By: BelmontJeff , 7:39 PM GMT on November 02, 2013

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OCTOBER was a pleasant month, with 18 Clear days, 0 Cloudy days, and mild weather, for the most part, until near month's end. Only 2 days of AM Fog were observed 1st-18th (1 of these Heavy, Visibility <1/16 Mile); 10 more days w/ Fog occurred 19th-29th (3 being Heavy), except for the 25th.

TEMPERATURE:

Avg Max: 75.1°
Avg Min: 52.1°
Mean: 63.6°

Due to the many clear periods, the disparity between the Average Max. and Min. Temps. of 23.0° was, so far, greater than any other month this year, just beating out April's 22.8° difference.

The Average Max. Temp. over the first 20 days was 78.0° but only 69.6° from 21st-31st. Max. Temps. peaked on the 5th & 6th at 87.1° (2 of the 11 days in the month to reach ≥80°).

Min. Temps. differed only 14.6° from warmest to coldest readings. The Avg. Min. Temp. 1st-19th was 54.0°; from 20th-31st it was 49.1°. Following September, which had the year's warmest Avg. Min. Temp. at 57.5°, October's 52.1° was 5.4° cooler, though the Avg. Max. Temp. was only 4.1° lower (79.2° vs. 75.1°).

The sharpest day-to-day change was from the 26th-27th when the Max. Temp. went from 80.7° to 57.3°, a 23.4° drop. That Max. reading on the 27th was the Coolest since the 56.2° on Apr. 15, 2013.

PRECIPITATION: The average monthly rainfall for October is 1.34". We were far from that value this year as only 0.03" was recorded, just 2% of Normal.

The current Calendar-Year Total Rainfall also continues well below normal, now at 3.06" (Normal for the period January-October is 18.64"). At this point in the Calendar Year, this is probably the driest ever recorded.

WIND: Only 16 of the 31 days recorded peak gusts of ≥10 MPH, with 6 of these being ≥15 MPH, and 2 ≥20 MPH. Very light winds 13th-26th.

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3. BelmontJeff
8:20 PM GMT on December 02, 2013
Hello Dave! I'm sorry I took so long to respond to your comment - I hadn't check it since I posted it as I don't usually receive comments :-)

Thank you for the kind comment about my blog entry for Oct. 2013. I've since posted my Nov. 2013 blog entry.

It's nice to have contact with another Bay Area observer. I assume you have a personal weather station on Wunderground? If so, what is your station i.d.?

I've viewed your blog entries - lots of nice data to see! I will keep a lookout for your future bi-weekly entries.

BTW, if you want to add the degree symbol to your entries and don't know how, hold the Alt key down, and type the numbers 2-4-8. It will pop it in.
Member Since: June 18, 2012 Posts: 17 Comments: 2
2. WunderAlertBot (Admin)
5:13 PM GMT on December 01, 2013
BelmontJeff has created a new entry.
1. DaveFive
10:43 AM GMT on November 10, 2013
Hello BelmontJeff, I'm Dave Five from San Jose, CA. Your blog for Belmont is great. The weather here in San Jose, has been dry since April in my location which is close to Morgan Hill. The north part of San Jose received some rainfall, but not much. It looks as though that November will be the same. Dry. What do you think?
Member Since: August 16, 2013 Posts: 9 Comments: 311

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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.

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