For the fourth day in a row Denver’s temperature broke the 100 degree mark and once again set records in the process.  Not only did June 25, 2012 break the record high for the date, it also tied the highest temperature ever recorded in the Mile High City.

Weather record keeping began in Denver in November of 1871.  In the nearly 141 years since, only twice has Denver reached 105 degrees – until today.

At 3:34pm the mercury at Denver’s official monitoring station at Denver International Airport reached 105 degrees. This tied the highest temperature ever recorded in the Mile High City which has only been seen twice before. The two previous times were on July 20, 2005 and August 8, 1878.

This of course is a record for June 25 itself as well. The previous record high temperature for June 25 was 100 degrees set in 1991.

The 105 degree reading also is the warmest temperature ever recorded in June. The old record was 104 degrees set on June 26, 1994.

And finally this makes the fourth day in a row that Denver has seen 100+ degree temperatures. Only three other times have that many or more consecutive days recorded readings above the century mark. With forecasts calling for at least one more day of 100+ degree temperatures, the streak may live on.

Thornton sets high temperature marks too

Thornton’s temperatures climbed today as well and broke the 100 degree mark for the third time this month.  At 3:53pm ThorntonWeather.com recorded a high of 103° (102.9°).  This is the highest temperature recorded by our site since it came online in October 2006.

Denver’s Longest Streaks of 100 Degrees or more

• July 4 to July 8, 1989 – Five days (101, 101, 102, 102, 103)
• July 19 to July 23, 2005 – Five days (101, 105, 104, 102, 102)
• June 29 to July 2, 1990 – Four days (102, 102, 102, 100)
• June 22 to June 25, 2012 – Four days – and counting (102, 104, 101, 105)

Related: Denver’s 100+ degree days since 1871

As officially measured at Denver International Airport, the mercury in Denver today topped out at 102 degrees at 3:35pm.  This easily breaks the old record for June 24th of 100 degrees set in 2007.

Here in Thornton we fell just shy of the 100 degree mark today as we topped out at 99.3 degrees at 3:55pm.  This follows on 102.2 degrees on Saturday and 100.2 degrees on Friday.

This makes it the third day in a row with Denver seeing 100 degrees or warmer temperatures.  Only four other times since recordkeeping began in 1878 have there been three or more 100 degree days in a row in the Mile High City.

Denver has recorded 100 degrees or warmer only 73 times including today.  Weather forecasts currently call for 100+ degree temperatures for at least the first part of the week giving a chance that the current streak will continue.

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Saturday brought another extraordinarily hot day across northeastern Colorado.

In Denver the mercury climbed to 104° at 4:57pm.  This broke the record high temperature for June 23rd of 102° set back in 1954.

This also ties the mark for the warmest temperature ever recorded in Denver during the month of June.  The only other time 104° was also recorded was on June 26, 1994.

Here in Thornton we reached 102.2° at 4:09pm.  This is the highest temperature recorded by ThorntonWeather.com since we came online in October 2006.  Our previous highest temperature was 101.6° on July 17, 2010.

The heat wave continues the record-setting heat we have seen this month in the Mile High City.  High temperature records have been set on June 4, June 17, June 18, June 22 and now June 23.

A record-setting day in the Mile High City.  At 2:57pm today the temperature at DIA climbed to 100 degrees thus breaking the record high for the date.  The old record was 99 degrees last set in 1990.

Also, the date will go down in history as having had the record high minimum as the mercury dipped to only 69 degrees at 5:38am.  That handily beat the previous record of 66 degrees set in 1940.

Here in Thornton we weren’t quite as warm.  Our high temperature topped out at 97.5 degrees at 4:23pm.  On the other end, our morning low was considerably cooler as we dropped to 60.3 degrees at 6:08am.

The National Weather Service also points out some interesting information about today’s heat:

“Although official records are not recorded for an average daily temperature…a few interesting statistics have been found for today’s excessive warmth. Today’s average daily temperature was a very warm 84.5 degrees. When we look at the average daily temperatures for this date in history…today was by far the warmest for June 18th. The old warmest average daily high temperature for June 18th was 81.5 degrees set back in 1936.”

“The average daily temperature of 84.5 degrees also ties with June 24th, 1954 as the 2nd warmest daily average ever for the month of June in Denver.

“The warmest daily average temperature for the month of June is 85.5 degrees and it occurred on June 27th, 1990.”

A record breaking Sunday in Denver as the mercury topped out at 98 degrees at 4:25pm.  This breaks the high temperature record for the date of 97 degrees set in 2007.

Here in Thornton we were slightly cooler with the high reaching 97.1 degrees at 3:20pm.

More record-setting heat is forecast for Monday as the mercury is expected to soar to 100 degrees.  The record for June 18 is 99 degrees set in 1990 and could very well tumble.  Get the latest forecast here: http://www.thorntonweather.com/forecast.php