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100° Days


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2014 has produced 9 days of 100+ temperatures at my location.  Data going back 5 years shows only 2012 had more [10 days].  Interesting that 2010 had only 4 days that included 111° [9/27] and 100° on Nov 3 :o

 

°

 

2010

Days: 4

9/25 [first day

111 9/27

100 11/3

 

2011

Days: 5

8/26 [first

10/13 [last

106° [10/13

 

2012

Days: 10

8/9 [1st day

10/2 [last

107° [9/14

 

2013

Days: 5

8/29 [1st

9/6

102° [9/2 & 9/6]

 

2014

Days: 9

5/14 [1st day

107° [9/14

 

Late spring heat waves [May] this year has produced a very long summer in places like the Central Valley [Fresno # 100° days: 50.

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I've only been here 8 years and my record high temp is 92 from last summer, before that was 88. This year the hottest was 86 but with more days ~80 and much higher minimum temps we had a warmer average summer temp.

 

I'm heading up to Mt Wilson this morning.  Visibility has been 70+ miles this weekend but there is some stratus over Santa Monica bay so the view will be a little impaired.  Mt Wilson is 5712' but I noticed the temps yesterday were 86/ 63.  I'm hoping today will be cooler.

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Happ - on my way to dropping my daughter off to school I get a panoramic view of the valleys and the past few days or more has been pristine viewing! Notably this morning.

 

A good benchmark I use to see how deep the marine layer is by how much the twin peaks of saddleback in the Santa ana mountains are covered.

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I pulled up additional temperature data going back from 1990 to 2009.  Every year recorded triple digit maximums though only one day in 2001 and 2005.  There were thirteen 100°+ days in 1990 & 1998 and 10 days in 1995.  Most years averaged between 4 and 8 days.  Warmest day over the past 25 years was 112° [June 26, 1990]; most year's warmest maximums were between 104-108.

 

Earliest 100°days occurred in April in 2004 & 2009; most 100° maximums were between late July and October.  November 2, 1997 was 100°

 

Statistically the last 100° reading should be over by mid October so hopefully we will not experience any more intense heat this year. 

 

These readings were taken in 2 locations about a block apart at around 900' elevation in the foothills of northeast metro Los Angeles approximately 15-20 miles from the ocean.

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I will count my number to compare, but I know my peak was 105 for a max temp. I would guess probably about 7 days above 100 this year here.

Winter 23-24: Total Snow (3.2")    Total Ice (0.2")     Coldest Low: 1F     Coldest High: 5F

Snow Events: 0.1" Jan 5th, 0.2" Jan 9th, 1.6" Jan 14, 0.2" (ice) Jan 22, 1.3" Feb 12

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