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Welcome to the Pepperridge North Valley's First 100°F Days Page

Thunder Heads develop over the open Desert         A rain shaft descends from a Thunderstorm over the open Desert


Yearly 100°F Day occurance for Pepper Ridge # 1 North Valley in Phoenix, Arizona

YEAR First 100°F Day First 105°F Day First 110°F Day Last 110°F Day Last 105°F Day Last 100°F Day
1997 May 5th May 15th July 3rd Aug 19th Oct 2nd Oct 6th
1998 June 2nd June 28th July 10th Aug 31st Sept 18th Oct 12th
1999 May 29th June 19th ***** ***** Sept 13th Oct 12th
2000 May 21st May 22nd July 18th Sept 14th Sept 16th Oct 1st
2001 May 8th May 23rd June 29th Aug 26th Sept 23rd Sept 29th
2002 May 13th May 30th July 2nd July 2nd Sept 5th Sept 26th
2003 May 21st May 27th July 9th Aug 10th Sept 30th Oct 22nd**
2004 June 1st June 3rd July 12th Aug 8th Sept 11th Sept 16th
2005 May 20th May 21st June 20th Aug 28th Sept 7th Sept 27th
2006 May 14th June 1st June 4th July 24th Sept 1st Sept 2nd*
2007 Apr 28th June 14th July 4th Aug 29th Sept 13th Sept 15th
2008 May 18th May 19th June 20th Aug 1st Sept 6th Sept 25th
2009 May 8th June 24th July 11th Aug 28th Aug 31st Oct 17th
2010 June 5th June 6th July 1st Aug 24th Sept 19th Oct 2nd
2011 June 5th June 21st June 27th Aug 27th Sept 8th Sept 24th
2012 Apr 22nd* May 31st July 9th Aug 14th Aug 28th Oct 1st
2013 June 1st June 1st June 28th Aug 16th Sept 6th Sept 20th
2014 May 16th June 9th July 22nd July 24th Aug 30th Sept 24th
2015 May 30th June 15th June 17th Aug 15th Aug 29th Oct 1st
2016 May 4th June 3rd June 3rd July 27th Aug 30th Sept 18th
2017 May 4th May 5th June 18th July 8th Sept 12th Sept 13th
2018 May 5th June 3rd July 5th Aug 6th Sept 17th Sept 28th
2019 June 9th** June 10th July 11th Aug 21st Sept 13th Sept 14th
2020 Apr 29th May 27th May 29th Sept 6th Oct 1st Oct 16th
2021 May 13th June 12th June 13th
Earliest Date: Apr 22nd* May 5th May 29th July 2nd Aug 28th Sept 2nd*
Year Occured: 2012 2017 2020 2002 2012 2006
Lastest Date: June 9th** June 28th July 22nd Sept 14th Oct 2nd Oct 22nd**
Year Occured: 2019 1998 2014 2000 1997 2003
Avg/Normal: May 17th May 31st June 29th Aug 10th Sept 19th Oct 4th

Apr 22nd, 2012 Earliest 100°F Day Occurance --- Oct 22nd, 2003 Lastest 100°F Day Occurance

Normals are based on the years 1997- 2005

***** Indicates Year the temp did not occur or ---- Indicates Year with missing data

Page last updated on June 13th, 2021

Return to Historical Data Page

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 Pepper Ridge North Valley Random Weather Facts

Definition Humidex - Over the years, several measures have been proposed to relate various combinations of temperature and humidity into a single number to approximate what hot, humid weather feels like to the average person. Of these, humidex is the one most familiar to Canadians. Humidex was introduced into Canada in 1965. The index is a summer analogue of the wind chill factor in that it is an equivalent air temperature. Air of a given temperature and humidity is equated in comfort to air of a higher temperature that has a negligible moisture content. Comfort is quite subjective and largely dependent on the age and health of the individual. Weather conditions causing prickly heat in an infant may result in heat cramps in a teenager, heat exhaustion in a middle-aged and heat stroke in a senior. Humidex is also limited as an overall hot-weather comfort index because it does not consider other factors such as pressure, wind speed, precipitation, sunshine or pollen.

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Page layout last updated on Feb 1st, 2012