JULY        2002

 

Weather Report, Climatic conditions Recorded from Raymond Terrace

Using a WM-918 Electronic Weather Station, and Nylex Rain Gauge 1000.

© 2002          by:  Grant Burgess          Circulation: 24 +          Frequency:  Monthly          Issue #:  79

 

My Daily Min/Max Air Temperatures & Rainfall Readings can be Found Weekly

in the Port Stephens Examiner.          Circulation: 26 400

 


The Average Max Temp was .……….…. 18.45 °C

     (A Record High For Jul)

   (which is 1.15 °C Above average)

The Highest Max Temp was …...…..……. 21.3 °C

     (recorded on the 20th at 1324)

The Lowest Max Temp was ..………….... 14.6 °C

     (recorded on the 30th at 1412)

 

The Average Min Temp was ……….......... 4.56 °C

      (A Record Low For Jul & is also the Lowest Average

Minimum Temperature that I have Ever Recorded In 1 Month)

  (which is 2.19 °C Below average)

The Highest Min Temp was ......……...…. 12.5 °C

   (recorded on the 5th at 0407)

The Lowest Min Temp was ………........... 0.3 °C

      (A Record Low For Jul & is also the Lowest

Minimum Temperature that I have Ever Recorded)

      (recorded on the 3rd at 0730)

 

The Avg Max Relative Humidity was ……… 79.97 %

     (A Record Low For Jul)

 (which is 12.47 % Below average)

The Avg Min Relative Humidity was ……… 33.35 %

     (A Record Low For Jul)

 (which is 12.30 % Below average)

The Avg Max Dew-Point Temp was ……..… 5.32 °C

  (A Record Low For Jul & is also the Lowest Average Maximum

  Dew-Point Temperature that I have Ever Recorded In 1 Month)

       (which is 4.20 °C Below average)

The Avg Min Dew-Point Temp was …….… -1.65 °C

  (A Record Low For Jul & is also the Lowest Average Minimum

  Dew-Point Temperature that I have Ever Recorded In 1 Month)

       (which is 4.91 °C Below average)

 

The Avg Max Wind Gust was …………. 24.02 km/h

   (which is 0.24 km/h Above average)

The Prevailing Wind Direction was …….. SW

   (the average wind direction is SW)

The Max Wind Gust was ……………..…. 41.4 km/h

   (recorded from the SW on the 10th at 1331)

 

The Avg Min Wind Chill was ………..…… 2.06 °C

  (A Record Low For Jul & is also the Lowest Average Minimum

  Wind Chill Temperature that I have Ever Recorded In 1 Month)

   (which is 1.57 °C Below average)

The Min Wind Chill was ………………… -3.0 °C

  (A Record Low For Jul & is also the Equal Lowest 

Minimum  Wind Chill Temperature that I have Ever Recorded)

        (recorded on the 19th at 0851)

 

The Median Monthly Rainfall is …....….. 59.10 mm

The Total Monthly Rainfall was …..…….. 44.3 mm

    (which is 30.87 mm Below average)

The Highest Daily Rainfall was .……........ 17.0 mm

         (recorded on the 31st)

 

 

MISCELLANEOUS:  (Number Of)

 

Rain Days ……..... 4                                 Avg =         8.00

Thunderstorms …. 0                                Avg =         0.60

Distant Ts’s …..… 3                                Avg =         2.33

Dew Days  …... 21                                Avg =       24.50

Fog Days ………… 6                                Avg =       11.25

Frost Days …...... 14                                Avg =         1.50


 

NOTE        The Average Minimum Dew-Point Temperature could be a little out due to my weather stations range only going as low as 0°C (only for Dew-Point Temps). I have set an out-of-range value of -3.0°C for this (still my default value). I recorded 24 days which were out of the Dew-Point Temperature range for the month of July.

 

RECENT ADDITIONS TO STATISTICS LIST

 

1.   I have now included the Monthly Prevailing Wind Direction in my monthly weather summaries (as you may have noticed).

2.   I have changed the wording from Minimum Ground Temperature to be Minimum Grass Temperature as I think that this is more technically correct and it should be less likely to be misunderstood.

 


 

Random Weather Data Additions:                   

 

 1 July 2002 - Manual Data Collection

 2 July 2002 - Manual Data Collection

11 July 2002 - Manual Data Collection

12 July 2002 - Automatic Data Collection

13 July 2002 - Automatic Data Collection

14 July 2002 - Automatic Data Collection


 

FURTHER                       I recorded an average Minimum Grass Temperature of -0.98°C with 23 days being recorded below 0°C. I recorded a Minimum Grass Temperature of -6.4°C on the 12th, -5.2°C on the 3rd & 19th & -4.7°C on the 13th.

 

The Lowest Minimum Temperature of 0.3°C was recorded on a morning where it was reported to be windy in many areas. This resulted in no minimum temperatures (that I’ve heard) being recorded below 5.0°C within at least 50 km. I however recorded virtually no wind until about 1330 (1.30 pm) that afternoon. The morning frost that morning was (and still is) the thickest that I have ever seen on the ground with it even occurring on leaves as high off the ground as 1.6 metres. Cars appeared white as well, amazing.