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BOM RAINFALL LINKS
Black Heath • Tepko • Pallamana
BOM Annual Medians (All Records) • Black Heath - 513.1mm • Tepko - 340.7mm • Pallamana - 302.3mm
ROCKLEIGH MONTHLY RAIN TOTALS
| ☆ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | TOTAL |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2018 | 12.4mm | 3.8mm | 5.2mm | 4.8mm | 22.4mm | 31.2mm | 29.2mm | 28.8mm | 5.4mm | 2.6mm | 42.2mm | 29.2mm | 217.2mm |
| 2019 | 0.4mm | 6.0mm | 3.8mm | 2.0mm | 44.2mm | 30.2mm | 16.2mm | 45.0mm | 20.8mm | 4.6mm | 5.2mm | 0.4mm | 178.8mm |
| 2020 | 40.4mm | 19.0mm | 3.4mm | 43.0mm | 29.2mm | 14.4mm | 17.8mm | 39.0mm | 31.2mm | 49.4mm | 5.4mm | 4.8mm | 297.0mm |
| 2021 | 17.0mm | 11.6mm | 9.4mm | 6.8mm | 21.4mm | 44.2mm | 61.6mm | 33.0mm | 57.6mm | 28.4mm | 57.2mm | 3.8mm | 352.0mm |
| 2022 | 31.6mm | 8.4mm | 5.0mm | 21.6mm | 38.6mm | 31.0mm | 19.0mm | 40.6mm | 49.0mm | 54.0mm | 56.8mm | 9.8mm | 365.4mm |
| 2023 | 20.8mm | 10.8mm | 7.8mm | 14.00mm | 19.4mm | 43.2mm | 16.8mm | 25.6mm | 6.2mm | 9.0mm | 41.6mm | 45.2-mm | 260.4mm |
| 2024 | 22.6mm | 0.0mm | 1.6mm | --.-mm | --.-mm | --.-mm | -.--mm | --.-mm | --.-mm | --.-mm | --.-mm | --.-mm | --.-mm |
THE ROCKLEIGH WEATHER STATION
Rockleigh's Station -: is Here @ 0 Kms @ 253 Mts / 830 Ft ASL @ Lat -34.996, Long 139.089 with an annual average rainfall of 283mm (Last 5 Years of data only). NOTE-: The BOM resets its daily rain totals at 9am, whereas the Rockleigh Weather Station resets it's rain totals at midnight & this is reflected in all of Rockleigh's rain totals.
BOM WX STATIONS
Black Heath's Station -: is NNW @ 6.6 Kms @ 318 Mts ASL @ Lat -34.939200, Long 139.069700 (Near the corner of Pym and Range Rd) with an annual average rainfall of 522mm (Approx. 54 years of data). Black Heath's lowest annual rainfall was 288mm in 1982 and its highest 1,000mm in 1992.
Tepko's Station -: is ENE @ 8.5 Kms @ 108 Mts ASL @ Lat -34.969200, Long 139.187400 (1.1 Kms East on Tepko Rd from Reedy Creek Rd) with an annual average rainfall of 351mm (Approx. 131 years of data). Tepko's lowest annual rainfall was 90mm in 1967 and its highest 655mm also in 1992. Tepko's records are by far the oldest & go way back to 1892.
Pallamana's Station -: is SSW @ 10 Kms @ 45 Mts ASL @ Lat -35.0650, Long 139.2273 (625 Mtrs East from Reedy Creek Rd) with a annual average rainfall of 310mm (Approx. 17 years of data). Pallamana's lowest annual rainfall was 202mm in 2008 and it's highest was 429mm in 2010. Pallamana is the only station that has it's rainfall records kept up to date.
The BOM's All Time annual average rainfall for Black Heath, Tepko and Pallamana combined is 394mm's. (Links Above)
MICROCLIMATES
Between the Tepko and Black Heath Weather Stations (WNW @ 10.5 Kms), for every kilometre you travel towards Black Heath the BOM annual average rainfall increases by approximately 16mm per Km. Between the Rockleigh Weather Station and the Black Heath Weather Station that is NNW @ 6.6 Kms & (assuming an average annual rainfall of 350mm for Rockleigh), there is an average annual rainfall increase of approx. 26mm per Kilometre, demonstrating the very high variability in the surrounding microclimates and the dramatic effects location has on weather! This figure could be as high, or even higher than 31mm per Km, if we assumed an average annual rainfall for Rockleigh of 320mm.
The prominent Ranges, Due East of Harrogate and West of Black Heath Road is likely the primary contributer to the rapidly increasing rainfall as you travel towards the Black Heath Weather Station. This range, with elevations in excess of 400 Mtrs ASL W of Black Heath & nearly non existent W of Rockleigh is possibly the reason?
RARE & INTERESTING WEATHER
Rockleigh had just 10.2mm of rain in the three months between Oct 1st & Dec 31st in 2019. On August the 7th 2020, the days temperature ranged from a minimum of 5° to a maximum of 6.7° when we had our first decent winter rain for the year! On the 29th of September 2021 we had 35.00mm @ a maximum Rain Rate of 142.2mm/Hr. The majority of other surrounding stations, including Black Heath also had very close to 35mm. On the 25th of January 1941, Tepko had 167.9mm of rain in just one day!
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