High pressure was the general rule for much of the month of June 2017. This resulted in overall average temperatures that were warmer than normal and precipitation that fell a good ways short of average.
The month was largely short on weather excitement, beyond the temps and lack of precipitation. The National Weather Service said that 23 of the 30 days saw above normal temperature readings. Denver recorded only five days with precipitation while in Thornton we saw eight.
Thornton saw an overall average monthly temperature of 69.2 degrees. Out at DIA where Denver’s official measurements are taken, the Mile High City was close with an average of 69.5 degrees. Both locations’ readings were well above the long term June average of 67.4 degrees.
Temperatures in Thornton ranged from a high of 98.7 degrees on the 21st down to a low of 46.3 degrees on the morning of the 24th. Denver saw a maximum of 99 degrees on the 20th and a low of 42 degrees on the 13th.
In terms of precipitation, Denver averages 1.98 inches during the month of June. Thornton fell short of the mark with 1.20 inches falling into our rain bucket while Denver’s reading was far worse with a mere 0.33 inches falling there.
Neither Thornton nor Denver saw any snowfall during the month.
Click here to view Thornton’s June 2017 climate report.
From the National Weather Service:
CLIMATE REPORT
NATIONAL WEATHER SERVICE DENVER/BOULDER CO
729 AM MDT SAT JUL 1 2017
...................................
...THE DENVER CO CLIMATE SUMMARY FOR THE MONTH OF JUNE 2017...
CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1872 TO 2017
WEATHER OBSERVED NORMAL DEPART LAST YEAR`S
VALUE DATE(S) VALUE FROM VALUE DATE(S)
NORMAL
................................................................
TEMPERATURE (F)
RECORD
HIGH 105 06/26/2012
06/25/2012
LOW 30 06/02/1951
HIGHEST 99 06/20 96 3 98 06/21
LOWEST 42 06/13 42 0 49 06/02
AVG. MAXIMUM 85.5 82.4 3.1 85.5
AVG. MINIMUM 53.6 52.3 1.3 56.2
MEAN 69.5 67.4 2.1 70.8
DAYS MAX >= 90 9 7.9 1.1 12
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 4.96 1882
MINIMUM T 1890
TOTALS 0.33 1.98 -1.65 1.62
DAILY AVG. 0.01 0.07 -0.06 0.05
DAYS >= .01 5 8.4 -3.4 7
DAYS >= .10 2 4.6 -2.6 4
DAYS >= .50 0 1.4 -1.4 1
DAYS >= 1.00 0 0.3 -0.3 0
GREATEST
24 HR. TOTAL 0.13 06/29 TO 06/29 06/13 TO 06/13
SNOWFALL (INCHES)
RECORD 0.5 1953
TOTAL 0.0 2017 0.0
DEGREE_DAYS
HEATING TOTAL 25 62 -37 4
SINCE 7/1 5109 6058 -949 5560
COOLING TOTAL 167 133 34 185
SINCE 1/1 173 155 18 188
FREEZE DATES
RECORD
EARLIEST 09/08/1962
LATEST 06/08/2007
EARLIEST 04/01 10/07
LATEST 05/04 05/05
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WIND (MPH)
AVERAGE WIND SPEED 10.1
RESULTANT WIND SPEED/DIRECTION 2/135
HIGHEST WIND SPEED/DIRECTION 44/270 DATE 06/27
HIGHEST GUST SPEED/DIRECTION 66/270 DATE 06/27
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.50
NUMBER OF DAYS FAIR 6
NUMBER OF DAYS PC 22
NUMBER OF DAYS CLOUDY 2
AVERAGE RH (PERCENT) 47
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 10 MIXED PRECIP 0
HEAVY RAIN 2 RAIN 2
LIGHT RAIN 8 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 0 SLEET 0
FOG 3 FOG W/VIS <= 1/4 MILE 0
HAZE 1
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.