August 2014 normal but with dry air

The daily weather log

Purple flowers

Early-blooming Hardenbergia

The weekly temperature was normal throughout, but the first half of the month had sunny warm days, cold nights and very dry air. The night of the 3rd (-4.0°) was the coldest August night this century, and the early morning of the 12th had the lowest August dew point (-8.7°). Two brief overcast and rainy spells began on the 16th and 26th, yielding 54.4 mm in five rain days. The reading of 26.6 mm on the 17th was one of the highest for August in recent years.
The number of frosts (12) was a little below normal (15).

Weather log August 2014

 Comparing August months

While August 2008 had been the coolest, and August 2009 the warmest in the 21st century, nearly all averages this month were near normal. As exceptions, the daily maximum temperature was slightly low and the dew point (as in the two previous August months) was very low. Few mornings had dew on the grass.
The total rainfall of 54.4 mm is in the 75th percentile, well above the August average (40 mm). This rain also raised the rainfall totals for periods of more than one month, so that only the 18-month total of 691 mm now remains as a serious shortage (9th percentile).

Climate August 2014  


Data. Rainfall data is from Manilla Post Office, courtesy of Phil Pinch. Temperatures, including subsoil at 750 mm, and other data are from 3 Monash  Street, Manilla.

Rainy March 2014

The daily weather log

Towering cumulus cloud.

Shower on the Tablelands

Three weeks of normal March weather were followed by six days that were cool, humid, overcast and rainy. While the wettest day had only 26.4 mm, the 14 rain days would be a record for March, but for the 16 rain days in March 1894. (Manilla never had a month with more rain days than June 1950, which had 18.)Weather log March 2014.

Comparing March months

Unlike recent arid months, March was near normal in day-time temperature, humidity and cloudiness. Nights were very warm, however .

The total rainfall of 101.6 mm is almost twice the March average of 53 mm, and in the 85th percentile. March has been wetter in nineteen years, including 2001 (103 mm) and 2007 (114 mm). Taking rainfall totals for more than one month, the greatest shortages are not serious (i.e. not below the 10th percentile). The twelve-month total (469 mm) is in the 14th percentile. Other totals have higher percentile values, and most totals for 30 months or more are above normal.

Climate March 2014


Data. Rainfall data is from Manilla Post Office, courtesy of Phil Pinch. Temperatures, including subsoil at 750 mm, and other data are from 3 Monash Street, Manilla.

 

Rain came back in November 2013

The daily weather logWeather log November 2013

By November the 11th, there had been only 70 mm of rain since the deluge in June. The humidity had been getting lower by the month. From that day, rain and high humidity returned. Days and nights became cooler than normal, with more cloudy skies. Most of the seven wet days were showery, but the 29th had steady rain.

Comparing November monthsClimate November 2013.

The weather change on the 11th returned most monthly average values closer to normal. However, despite the rain, this was still an “Arid” month, with a record low November mean morning dew point, a wide daily temperature range, and few cloudy mornings. The mean subsoil temperature (23.8°) was 1.9° above normal, exceeded (in the 21st century) only by 24.7° in November 2002.
The total rainfall of 95.6 mm was in the 80th percentile, well above the average of 67 mm. This disposes of all serious shortages in rainfall totals. The worst figure now is the 5-month total of 166 mm, which is 56 mm below normal (19th percentile).


Data. Rainfall data is from Manilla Post Office, courtesy of Phil Pinch. Temperatures, including subsoil at 750 mm, and other data are from 3 Monash Street, Manilla.

June 2013: Extreme Cloud and Rain

The daily weather logWeather log June 2013.

The first weeks were warmer than usual, including a Queen’s Birthday Saturday that reached a pleasant 23°. In contrast, Tuesday the 25th reached only 9.7° making it the fifth coldest day of the century.

There were hardly any sunny mornings in the month, and most were close to overcast. Cloud kept the nights warm, limiting the number of frosts to only eight. The night of the 7th had a minimum of 12.6°, nine degrees above normal.

The wettest of 10 rain days had 38.0 mm, almost as high as a 38.2 mm reading in June 2008.

Comparing June MonthsClimate June 2013.

Extreme cloudiness and rain lead this month’s climate values. Having 73% of mornings with cloud covering more than half the sky makes this the cloudiest month in the 21st century by far. July 2010 and March 2011 reached only 61%. This month’s figure is over twice the June average of 33% cloudy mornings.

With a rainfall total of 98.0 mm, this is the eighth wettest June in 131 years. The wettest was June 1920, with 173 mm. That was the first of a cluster of four extremely wet Junes, ending with June 1931, that were among the ten wettest. Only eight years ago, June 2005 was the sixth wettest on record, at 109 mm.
This month’s rainfall defers any shortage. Among totals for more than one month, the driest is the 34th percentile for the last three months (Total 3-month rain: “only” 116 mm).
The mean daily maximum temperature, 17.3°, is just 0.5° below normal, but the mean daily minimum, 5.7°, is very high, 2.9° above normal (as in 2005, 2008 and 2009). The subsoil remains very warm.


Data. Rainfall data is from Manilla Post Office, courtesy of Phil Pinch. Temperatures, including subsoil at 750 mm, and other data are from 3 Monash Street, Manilla.

Autumn 2013 began wet

Weather log Autumn 2013Three quarters of the rain this autumn fell in the first two days: 31 mm and 45.4 mm. After that, the heaviest falls were 6.2 and 6.8 mm late in May. Days were cool with the rain, and warm in late March and late April. The warm days in late March came with warm nights, but the warm days in late April brought very wide daily temperature ranges instead.

This autumn was like autumn last year. That is, it was near average in most respects, but with high subsoil temperature and plenty of cloud. Dew points were even lower, reaching a record low value of 6.1°.
Rain fell on 11 days (normal), totalling 103 mm. This is below the 125-year autumn average of 133 mm, and in the 46th percentile.Climate autumn 2013

Data. Rainfall data is from Manilla Post Office, courtesy of Phil Pinch. Temperatures, including subsoil at 750 mm, and other data are from 3 Monash Street, Manilla.