Tag Archives: weather

In 2012, Autumn Weather Normal Again

Posted in Manilla NSW, Season Weather by

Weather log autumn 2012.
After the cold, wet summer, autumn weather was normal, like last year. Days were warm in early April, and nights cold in mid-May. Rain was rather light: the four days with more than 10 mm of rain came in late April.
Average air temperatures were close to normal, but the early morning Dew Point was 2.1 degrees down, showing very dry air, as in autumn 2008. The subsoil was very warm.
While the percentage of mornings with more than 4/8 cloud (39%) was lower than in the last two autumns, it is still nearly twice that of autumns in the previous decade, which averaged just 25%.
Rain fell on 16 days (normally 12), but the total rainfall of 87.4 mm is only on the 35th percentile for autumn. Like autumns in 2009 and 2010, it is about 45 mm below the average (133 mm). Nevertheless, an enormous amount of rain fell in spring, summer, and autumn taken together: 852 mm! Only 1956 and 1890 had more rain in those three seasons: 1012 mm and 939 mm.Climate autumn 2012

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.

Very dry air in May 2012

Posted in Manilla NSW, Monthly weather by

The daily weather logWeather log May 2012.

Most days were fine, and only two or three were cool and overcast. There were 13 frosts, twice the usual number, but May 2006 had 14. Rain totalling 13.8 mm fell on five rain days, with a maximum reading of 6.2 mm on the 25th.

 Comparing May monthsClimate May 2012.

This was a very dry month, marked by dew points four degrees below normal, but it was not as dry as May 2006, as is clear from the graph.
The rainfall total is well below the May average of 40.3 mm: it is in the 24th percentile (3/4 of May months have been wetter). In extreme contrast, the nine-month rainfall total of 852 mm is extra-ordinarily high. Only 13 nine-month totals have been higher, and then only in the four years 1890, 1928, 1956 and 2012 (April). The record for a nine-month rainfall total was 1030 mm, set in June 1956.

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.

 

April 2012 cloudy and wet

Posted in Manilla NSW, Monthly weather by

The daily weather logWeather log April 2012.

Most days had normal temperatures, but several were cool and overcast. Cold nights came during sunny spells, the coldest, on the 11th, being nine degrees below normal, but not a frost. Rain totalling 58.2 mm fell on seven rain days, mainly late in the month, with a maximum reading of 14.2 mm on the 24th.

 Comparing April monthsClimate April 2012.

All the mean temperatures were near normal, except that subsoil temperature was the highest for April on this record: 2.1 degrees above normal.

There were more cloudy days than recorded in earlier Aprils.
The rainfall total of 58.2 mm is well above the April average of 39.3 mm: it is in the 80th percentile. The total for March and April taken together (73.6 mm) is exactly on the average. As in March, totals for periods from five months to twenty-four months are still near record high values, and no totals up to the thirty-year total are below normal.

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.

 

March 2012 a bit dry and cool

Posted in Manilla NSW, Monthly weather by

The daily weather logWeather log March 2012

Apart from a cold snap about the 9th, March was just a little cooler than usual. There were four rain days, with a maximum reading less than 7 mm. Late in the month, the weather was showery, but none of that rain fell here.

 Comparing March monthsClimate March 2012.

All the mean temperatures, and the Dew Point, were about a degree low. However, this month was not nearly as cold or as dry as March 2008, which had only 2.2 mm of rain, and barely escaped a frost.
The month was very cloudy, but not as cloudy as last year. The subsoil was very warm.
The rainfall total of 15.4 mm is well below the March average of 53.3 mm. It is in the 26th percentile: about one quarter of all March months have been drier than this one. This rather low reading hardly affects the high totals for groups of months. Totals for periods from five months to twenty-four months are still near record high values. No totals up to the thirty-year total are below normal.

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.

 

2011-12 Summer Cold and Wet

Posted in Manilla NSW, Season Weather by

Weather log summer 2011-12.In the whole of this summer, only 3 days went over 35° (usually 23) and only 5 nights went over 20° (usually 19).

The smoothed curves of temperature reached up as high as normal only twice. In early January both days and nights were normal. Later, with persistent rain around the 1st of February, nights warmed to normal, but days were extremely cold.
All the mean daily temperatures were the lowest in 13 summers: maximum 28.9°, mean 22.2°, and minimum 15.4°. Summer ’07-’08 had been just slightly warmer.
Daily temperature range this summer (13.5°) was very narrow, as in ’07-’08 and ’10-’11; all wet summers with very cloudy skies. Strangely, this cloudy wet summer had very low humidity, with morning Dew Point (12.7°) the lowest on this record.
While this was a very wet summer, at 333 mm, it was only the 19th wettest (86th percentile), and not much wetter than summers 4, 6, and 8 years ago.Climate summer 2011-12.

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.