Following two hot and dry months in May and June, July brought some relief in the form of near normal temperatures and precipitation.
Cooler than normal temperatures started the month during the first couple of days of July. That changed for the following 10 days when temperatures bounced to above normal levels with Thornton recording eight 90+ degree days during the period.
The next few days from the 14th to the 16th brought much cooler conditions and much-needed precipitation. Seasonal temperatures then settled in through the 23rd. As the month came to a close, temperatures became more moderate and we even saw three days (the 27th, 28th, and 29th) with highs in the 70s. Most notably we once again saw some precipitation.
Thornton saw an average temperature during July of 72.1 degrees. This was a good bit below the long term Denver historical average of 74.3 degrees. Officially at DIA the average temperature for the month was 74.2 degrees.
We recorded 14 days with temperatures at or equal to 90 degrees. Temperatures ranged from a high of 98.5 degrees on the 11th down to a low of 52.6 degrees on the 27th.
A reasonable 1.61 inches of precipitation fell into Thornton’s rain bucket during the month. This was a bit below the average for July of 2.16 inches. Out at the airport, Denver fared a bit better with 1.98 inches.
Click here to view Thornton’s July 2013 climate summary.
CLIMATE REPORT
NATIONAL WEATHER SERVICE BOULDER, CO
210 AM MDT THU AUG 1 2013
...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF JULY 2013...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2013
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 105 07/20/2005
LOW 42 07/04/1903
07/31/1873
HIGHEST 100 07/11 105 -5 102 07/21
LOWEST 55 07/02 42 13 57 07/26
AVG. MAXIMUM 88.2 89.4 -1.2 94.4
AVG. MINIMUM 60.4 58.9 1.5 63.4
MEAN 74.3 74.2 0.1 78.9
DAYS MAX >= 90 17 16.0 1.0 27
DAYS MAX <= 32 0 0.0 0.0 0
DAYS MIN <= 32 0 0.0 0.0 0
DAYS MIN <= 0 0 0.0 0.0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 6.41 1965
MINIMUM 0.01 1901
TOTALS 1.98 2.16 -0.18 0.48
DAILY AVG. 0.06 0.07 -0.01 0.02
DAYS >= .01 7 8.3 -1.3 6
DAYS >= .10 4 4.3 -0.3 2
DAYS >= .50 2 1.4 0.6 0
DAYS >= 1.00 0 0.7 -0.7 0
GREATEST
24 HR. TOTAL 0.87 07/15 TO 07/15 07/06 TO 07/07
07/14 TO 07/15 07/31 TO 07/31
07/15 TO 07/15 07/31 TO 07/31
STORM TOTAL MM MM
(MM/DD(HH)) MM 07/07(00) TO 07/07(00)
07/31(00) TO 07/31(00)1
07/31(00) TO 07/31(00)1
SNOWFALL (INCHES)
RECORDS
TOTAL MM MM
TOTALS 0.0 0.0
DEGREE_DAYS
HEATING TOTAL 0 6 -6 0
SINCE 7/1 0 6 -6 0
COOLING TOTAL 295 289 6 438
SINCE 1/1 558 444 114 803
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST 10/07
LATEST 05/05
..................................................
WIND (MPH)
AVERAGE WIND SPEED 10.3
RESULTANT WIND SPEED/DIRECTION 3/163
HIGHEST WIND SPEED/DIRECTION 45/050 DATE 07/20
HIGHEST GUST SPEED/DIRECTION 58/040 DATE 07/20
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.60
NUMBER OF DAYS FAIR 5
NUMBER OF DAYS PC 24
NUMBER OF DAYS CLOUDY 2
AVERAGE RH (PERCENT) 50
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 3
LIGHT RAIN 13 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 6 FOG W/VIS <= 1/4 MILE 1
HAZE 13
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.