Tag Archives: NSW

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.

 

Cool, very cloudy January 2012

Posted in Manilla NSW, Monthly weather by

The daily weather logWeather log January 2012.

As in December, nearly all the days and nights of January were cooler than normal. Normally, about twelve days are warmer than 35°, but this time only three were. Sunday the 15th reached only 23°, which is 11° below normal. There were eleven rain days, but the highest rainfall reading, on the 25th, was only 11.2 mm.
The month ended with eleven cloudy mornings in a row. Seven mornings in the month were overcast.

Comparing January monthsClimate January 2012.

All mean temperatures and the Dew Point were lower than in other Januaries shown on the second graph. They were also the lowest on the 13-year record, except that January 2000 had a lower mean minimum of 15.5° and Dew Point of 12.4°. This month’s mean maximum was 3.7° below normal. This extremely low value does not match December’s, which was 4.6° below normal.
Subsoil temperature was not low, but normal. This made the subsoil more than 2° warmer than the air, which is unusual in January.
Fifty-five percent cloudy mornings is a new record for January, and twice as cloudy as usual. Due to that, the mean daily temperature range (13.8°) is near the January record narrow value: 13.7° in 2008.
The rainfall of 60.7 mm is in the 40th percentile for January, well below the long-term average of 86.7 mm. Due to the November deluge, rain totals for groups of months from 3 months up to 24 months remain very high indeed: above the 80th 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.

Very cool December 2011; wet year

Posted in Manilla NSW, Monthly weather by

The daily weather logWeather log December 2011.

Nearly all the days and nights of December were several degrees cooler than normal. None of them were very cold, but no days and few nights were above normal either. As in much of NSW, cool weather continued for the whole month. In a normal December, most days are warmer than 30°, but this time only four were. There were eleven rain days, often with cloud on the hills and sometimes valley fog (in summer!). The highest rainfall (2 day) reading was 22.0 mm.

 Comparing December monthsClimate December 2011.

This December was even cooler than the last. It set new post-1998 record lows for mean daily maximum temperature (27.0°), mean daily mean temperature (20.4°), and mean daily minimum temperature (13.9°). This December’s days and nights were cooler than those of November, by 2.8° and 2.1° respectively.
Mean early morning Dew Point (11.1°) was also a record low value.
The mean daily temperature range (13.2°) was a bit wider than last years record narrow value (11.7°). The sky was rather cloudy, and the mean subsoil temperature (24.0°) normal.
The rainfall of 79.0 mm is in the 58th percentile for December, above the long-term average of 74 mm. Totals for groups of months up to 24 months are now all extremely high: above the 80th percentile. The greatest rainfall “shortage” is in the 12-year total, which has the lowest percentile value (41st percentile): in the last 12 years 7621 mm of rain fell, which is just 82 mm short of the median 12-year total of 7703 mm.

The year 2011

After a very dry winter, record-breaking spring rain made this an extremely wet year. The rainfall for the year, 839 mm, is in the 86th percentile. It was not quite as wet as 1998 (919 mm; the 6th wettest) or 1996 (890 mm; the 10th wettest). These three years (1996, 1998, 2011) are the wettest in the third of a century since 1978, which had 979 mm.
In other ways, the year was nearer to normal than 2010. There were 91 rain days, fewer than last year’s record 112 rain days. It was much less cloudy, which allowed days to become warmer and nights cooler than last year, when the climate had been more equable: like that on the coast.

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.

 

November 2011 was the wettest

Posted in Manilla NSW, Monthly weather by
This was the wettest November, and the fifth-wettest month in the 129-year record.

The daily weather logWeather log November 2011.

After eight sunny dry days, half the remaining days were cloudy and wet. At first it was stormy, with over 60 mm falling in half an hour on the 13th. Persistent steady rain fell later in the month, with daily readings of 47.8, 25.0 and 62.8 mm.. The total reached 242.9 mm.
Some days in the middle of the month were rather warm, balanced later by cool days with the rain. Most nights were a little warm. Taking days and nights together, the weather was warm until the last week.

 Comparing November monthsClimate November 2011.

The record total rainfall of 242.9 mm is more than 100 mm higher than the very high November rainfalls of 2008 (132 mm), 2001 (133 mm) and 2000 (132 mm). All these are far above the November average, which is 67 mm.
Totals for groups of months up to 18 months are all very high. For longer periods, totals are not so high, but all are above the median (the 50th percentile) except for the 10-year total (43rd percentile) and the 12-year total (39th percentile).
Mean daily temperatures are above normal, especially the daily minimum, which is 2° up. However, temperatures in the heat-wave of November 2009 were much higher. This month was humid, with a morning Dew Point a degree higher than 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.