Tag Archives: weather

November 2015 had warm days and nights

Posted in Manilla NSW, Monthly weather by
Photo of seeding clematis

“Old Man’s Beard”

By the last week of October, the weather had cooled down to normal. In November, this continued until the 15th, with rain falling on eight of the days. The highest rainfall reading was 30.0 mm on the 5th.
After that, the weather was fine. Both days and nights were warm, but no day got to 40°. The weekly average temperature reached about four degrees above normal, as it had done early in October.

Weather log November 2015

 Comparing November months

This was a warm November, by day and by night. However, November 2014 had been hotter, and November 2009 very much hotter. The average daily maximum temperature in November 2009 (34.3°) was nearly 3° higher than in this month (31.5°).
Moisture indicators for this month were close to normal, although there was not much cloud. The dew point is no longer very low, as in the last three Novembers.
The rainfall of 73.8 mm was above average, in the 63rd percentile. The climate graph still includes the phenomenally high rainfall of November 2011: 242.9 mm, the highest November rainfall since the record began in 1883. (The next highest was 226 mm in November 1961.)
There are now no serious shortages in rainfall totals for ANY number of months. For the last 30 years, Manilla has enjoyed rainfalls close to normal. The 30-year total of 19,449 mm to this date is within 100 mm from the median 30-year total of 19,360 mm. In all that time, the most extreme major rainfall events were the 2002 winter-spring drought, and the 2011-2012 summer deluge.

Climate for November 2015

Data. All data, including subsoil at 750 mm, are from 3 Monash Street, Manilla. Rainfall data up to 26/3/15 is from Manilla Post Office, Station 055031.

October 2015 very warm

Posted in Manilla NSW, Monthly weather by
Photo of native jasmine

Sweetest Jasmine

The first 30-degree day of the season came on the 3rd. That was ten days late, but the first 35-degree day followed soon after, on the 6th. Most days and nights were warm through the month, and the weekly mean temperature was three or four degrees above normal until the last week.
Ten sunny days were followed by days with much more cloud, and four rain days (usually seven). On the 22nd and 23rd, I recorded 17.4 and 8.0 mm.

Weather log for October

 Comparing October months

This was the warmest October of the new century for all daily temperatures: maximum, mean and minimum. The mean temperature of 21.7° was 3° above average, and much higher than in the other warm Octobers of 2014 (20.6°) and 2007 (20.4°).
The graph shows the curious fact that October months have warmed steadily since 2011. Since 2012, Octobers have not become drier: rainfall, cloudiness and humidity have increased rather than decreased.
The rainfall of 35.0 mm was below average, in the 29th percentile. As in last month’s report, there are no serious shortages in rainfall totals for small numbers of months. The only serious shortages are in the 30 month total (6th percentile) and in the 42 month total (7th percentile). There are still deep ponds in Greenhatch Creek.

Climate for October 2015

Data. All data, including subsoil at 750 mm, are from 3 Monash Street, Manilla. Rainfall data up to 26/3/15 is from Manilla Post Office, Station 055031.

September 2015 cold and dry

Posted in Manilla NSW, Monthly weather by
Photo of native clematis

Native clematis

Few days or nights in September were warmer than normal. The 23rd was a very cold day (17.1°) and the 24th had a very cold morning (-0.1°). The weekly temperature was near normal in the third week, but it had been cool in the first. It was cold (4.7 below normal) in the fourth week, and was rising through normal at the month’s end.
As is usual in September, most days were fine, and they were much warmer than the nights. The afternoon humidity was low (24%), but not nearly as low as in 2013 (15%).
Rain fell on only four days, with the highest reading 8.6 mm on the 4th.

Weather log for September 2015

 Comparing September months

In a dramatic change from August, both days and nights were very cold, as they were in September 2004.
The aridity was not quite as bad as in 2013, when the dew point was lower and there was less cloud.
Such cold, dry conditions are not those of an El Niño event (hot and dry) or of a La Niña event (cold and wet). If more extreme, they would be those of a glacial period.
The rainfall of 15.9 mm was well below average, in the 22nd percentile. There are still no serious shortages in rainfall totals for small numbers of months. A severe shortage (4th percentile) has appeared in the 30 month total (1186 mm). There are still deep ponds in Greenhatch Creek.

Climate for September 2015

Data. All data, including subsoil at 750 mm, are from 3 Monash Street, Manilla. Rainfall data up to 26/3/15 is from Manilla Post Office, Station 055031.

Winter 2015 like winter 2014

Posted in Manilla NSW, Season Weather by
A low-level lenticular cloud

Low Level Lennie

Weather log for winter 2014There was one short spell of rather cold days in mid-July this year, and another at the very end of August.
Otherwise, this winter was very like the winter before. In mid-June and late August there were humid spells with heavy rain and very warm nights. By contrast, early August had cold nights with very low humidity and no rain. In both years, July had very light falls of rain.
The number of frosts in each season (38; 42) was near normal (44), but in this winter the coldest night (minus 2.1°) was the warmest so far this century.

Weather log for winter 2015

Like last winter, the average night temperature and the cloudiness were a little high, and the dew point very low. Average day temperature was half a degree low, making the daily temperature range narrow.
The winter rainfall, 133 mm, was just above the average (125 mm) and in the 62nd percentile.

Climate for winter 2015

 Temperature, including subsoil at 750 mm, and other data are from 3 Monash Street, Manilla.

August 2015 normal weather

Posted in Manilla NSW, Monthly weather by
Vine blossom photo

Wonga-Wonga Vine

Up to the 24th of August, there had been no rainfall readings above 6 mm for 67 days, and none at all for 29 days. Then storms brought 34 mm one day and 4 mm the next. A little more fell on the 28th. Overcast skies came with the rain, and one morning had fog until after 9 am.
Two days were unusually cool: the 5th was 6° below normal and the 27th was 7° below normal. By contrast, the minimum temperature on the warm rainy morning of the 24th (13.5°) was 9.4° above normal. There were 15 frosts (normal), but the coldest morning, the 5th, reached only minus 2.1°.
The weekly average temperature was a little low in the sunny first half of the month. It was high just before and during the rain, then low again.

Weather log for August 2015

 Comparing August months

This month was close to normal, and very like August last year.
Days were a bit cool. That made the daily temperature range rather low, in line with rather cloudy skies.
The rainfall of 40.1 mm was on average, and in the 57th percentile. As happened last month, only one rainfall total was as low as the 9th percentile. That serious shortage had now moved back to the 30-month total (1255 mm). Water is flowing in Greenhatch Creek.

Climate for August 2015

Data. All data, including subsoil at 750 mm, are from 3 Monash Street, Manilla. Rainfall data up to 26/3/15 is from Manilla Post Office, Station 055031.