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April 2018 Statistics and Sumarries

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April - Hobart, Tasmania

A warmer and drier month than average. The mean temperature anomaly was +0.8c above 1981-2010 or +0.7c above 1961-1990. Rainfall this year is one-quarter down from the long-term average so far. Our annual trend over the last 20 years or so is: much warmer and drier.

Average maximum:  18.8 ( +1.0 )

Average minimum:  10.0 ( +0.6 )

Rainfall:  30mm ( average 50mm )

Rain days (+1mm):  7/from 13

Significant heat spread across most of Australia during the first half of the month, but Tasmania was much milder and cloudier during this time in a westerly weather pattern, with fronts and low pressure occasionally bringing rain periods and a few showers. 8mm on the 6th was the months wettest day, it took about four hours to accumulate. A significant cold front crossed on the 14th bringing a cold night with showers ( 5mm ) and snow settling to 600m into the morning.  Sunday the 15th was cold, windy and dry with a significant wind chill and with a snowcapped mountain it was pleasantly wintry, but it wasn't to last. Another intense low and front was approaching from the southwest, veering winds warmer and galeforce overnight from the opposite direction. The temperature rose from a Sunday maximum of 13c to a pre-dawn temperature of 17c on Monday, with gales bringing down trees and ripping away some loose structures.  Monday the 16th turned progressively colder behind the front with winds easing a lot, with a 9am maximum of 13.5c ( the month's coldest day ). A shower or two following behind with snow settling down near 800m. The 18th-30th was predominantly dry with broad high pressure across southern Australia. Inland frosts at first, quite severe. Only a shower or two on the 26th and 28th, associated with weak cold fronts.

Extremes in daily temperature for April ( records since 1882 😞

Highest maximum:  24.6.....4th ( record 31.0 in 2014 )

Lowest maximum:  13.5.....16th ( record 7.7 in 1967 )

Highest minimum: 14.1.....3rd ( record 18.6 in 1959 )

Lowest minimum:  5.1.....18th ( record 0.7 in 1888 )


Edited by Styx

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Disgusting year so far, already going to be one of the cloudiest years on record after just 4 months. Spring has been exceptionally wet and will be the 2nd cloudiest on record unless May records 170 hours of sun at least (which it won't).



Edited by B87
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April 2018


Max Temp: 22.7°C (20th)

Min Temp: 3.7°C (1st)

Mean Max: 13.2°C

Mean Min: 7.6°C

Air Frosts: 0


Total: 61.6mm

Wettest Day: 12.0mm (21st)

Max Rain Rate: 110.8mm/hr (21st)

Rain Days: 13

Dry Days: 17


Highest: 1027.37mb (18th)

Lowest: 990.89mb (4th)


Days with snow falling: 0

Days with snow lying: 0

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Cantley weather summary for April 2018


A variable month for temperatures, ranging from a mean of 4.3 C for the first two days to one of 18.0 C 17-21 inclusive. It was also a very wet month with almost three times the average.


Mean=10.2 (9.8)

Avge Max=14.3 (14.3) the warmest day, a record, 28.7 on the 19th, and the coldest day 6.3 on the 1st.

Avge Min=6.4 with the coldest night the 5th with 1.2 and the warmest night 18 th with 13.2


88.0 mm of rain the wettest day was 2 nd with 21.2 mm; there were 14 days with 0.2 mm or more and 11 with 1.0 mm or more.

One day with snow falling, nil days lying, no air frosts (1) and 3 (5) ground frosts.

No hail or thunder and 1 day with fog at 9am

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