Kevin Shaw next to current VP2 station below my apartment balcony on the 4th floor. Also set as featured image is a picture of my cocorahs rain gauge in a unique tubular green holder that makes the operation of data retrieval and measurement much easier. Having fun with text colors and font styles on this message. Hope it all comes out. Plus the 2 pictures. Hope you will enjoy! 

JUNE 2017 – ROCKVILLE 2.8 WNW MARYLAND
CLIMATE STATISTICS FOR WEATHERQUACK 
by Kevin Shaw, Observer in charge

Average high temperature 83.9°
Average low temperature 67.0°
Mean temperature 75.5°

Precipitation 1.34″
Greatest daily amount(date) 0.60″ (19)
Snow 0.0″
Year to date precipitation 17.55″

High temperature for the month (date) 93° (13)
Low temperature for the month (date) 54° (8)

Highest barometric pressure (date) 30.20” (28)
Lowest barometric pressure (date) 29.55” (24)

Peak wind gust (date/direction): N/A

Heating degree days for the month: 4
Cooling degree days for the month: 318

Greatest diurnal range (date): 25.2° (4)
Least diurnal range (date) 7.5° (5)

Number of days:

Fog 2
Thunder: 1
Cloudy 7
Partly Cloudy 13
Sunny/Clear 10

JUNE 2017 – BRIEF CLIMATE SUMMARY
ROCKVILLE 2.8 WNW MARYLAND
by Kevin Shaw, observer in charge

June 2017 reversed the May pattern of wet and cool as it was quite dry and
warm. Contrasting the major highlight statistic in May of 20 days of measurable
precipitation, June had only 5 such days. Precipitation totaled 1.34″ for the month,
with the heaviest daily amount recorded on the 19th (0.60″) due to the one and
only thunderstorm of the month. The only other real rainy period was over 2
mornings on the 23rd and 24th with a total of 0.58” from the weakening remnants
of Tropical Storm Cindy. As a predictable by-product of this TS passage, the
the lowest pressure reading of the month (29.55″) was recorded.

The coolest temperatures of the month occurred near the beginning, when 54° was
reached on the 8th. 7 of the first 10 days of the month had maximum temperatures
below 80°, but thereafter only 2 more days managed to remain below 80° as the
heat started to really crank up. The hottest period of the month (June 11-13) as
usual followed right behind this relatively “cool” spell with the highest temperature
of the month reaching 93° on the 13th. That three day period was fortunately our
only “heat wave” of the month, which is defined as 3 days in a row (or more) of 90°
or greater maximum temperatures.

There were 4 heating degree days (HDD) and 318 cooling degree days (CDD)
during the month

My maximum temperature frequencies included 7 days of 90° or more, 15 days
between 80° and 89°, 7 days between 70° and 79°, and 1 day between 60°
and 69°. On the minimum temperature frequency side of things, there were 4
days between 50° and 59°, 13 days between 60° and 69°, and 13 days of 70°
or over.

The diurnal range daily monthly average was 16.8°. Though I have no normals
for this location as yet, I have been exhibiting generally low diurnal ranges
due to my station’s elevated location above ground, but that changed in July
and I suspect that pattern will not continue. The maximum daily range of 25.2°
occurred on the 4th (85.6°- 60.4°). There were 7 days total with daily ranges at
or above 20.0°. The lowest daily temperature range of 7.5° (76.6°- 69.1°)
which occurred on the 5th interestingly enough occurred one day after the
maximum daily range occurred, on one of our few wet days of the month,
and the beginning of our coolest period of the month (5th-9th) , when maximum
temperatures each day all held below 80°.There were only a total of 2 days with
minimum daily temperature ranges less than 10.0°.

June started what has been yet another hot summer. At least the dryness of
June has not persisted into July, which has been much wetter. Major improvements
to my instrument sitings have occurred recently, including a ground based cocorahs
rain gauge site that does not get sprinkled on, and my ground based, shielded
VP2 temperature, etc system that is giving me more accurate representation
at what the elevation above the ground (~ 5 feet) should be. Please ask me any
questions you want at any time through any means you can.