Tag Archives: hot week

Spring 2018 warm

Posted in Manilla NSW, Season Weather by
Native vine blossoms

Wonga wonga in spring

This spring was marked by very high temperature in the first week of November. Both days and nights were about five degrees above normal, as hot as expected in mid-summer. Less extreme warmth also occurred in the second half of October and in the second week of September. Periods of very dry air (marked “ARID”) came in mid-September, late November, and at the time of very high temperature.
There were 23 rain days (normally 19), but there was one rainless period of 17 days in September. No day had more than 17 mm of rain.

Weather log spring 2018

The season’s rainfall of 114 mm was at the 24th percentile, about 50 mm below average (166 mm). [The highest rainfall on this graph, spring 2016, is only 45 mm above average.] Other measures of moisture this spring (cloud, dew point, and low daily temperature range) were similar to those of spring 2017 and 2016. They were much moister than those of spring 2013.
The season was warm, with days 0.5° above average and nights 1.5° above average. Spring 2016 had been three degrees cooler. The subsoil temperature was below normal, as it was in the three previous spring seasons.

Climate for spring 2018

Data. A Bureau of Meteorology automatic rain gauge operates in the museum yard. From 17 March 2017, 9 am daily readings are published as Manilla Museum, Station 55312.  These reports use that rainfall data when it is available. Station 55312 recorded no readings in spring 2018. I used my own readings for the whole season.

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

November 2018 began hot

Posted in Manilla NSW, Monthly weather by
A King Parrot feeding in a Hopbush

King Parrot in Hop Bush

The month began hot, with the weekly temperature more than six degrees above normal. On the 6th, the maximum reached 39.4° after a warm overnight low of 22.1°. However, rain brought a maximum of only 21.5° on the 8th. In the rest of the month temperatures were near normal. Just one morning (the 24th) had an exceptionally low dew point that was 14° below normal.
There were eight rain days, with the highest reading 17.2 mm, on the 22nd.

Weather log November 2018

Comparing November months

Although the month began so hot, the average temperature (22.7°) was only 1° above normal, and not nearly as high as in November 2014 (25.4°) or November 2009 (26.0°).
Despite the continuing drought, the only indicator showing low moisture was the early morning dew point (7.3°). There was quite a lot of cloud (43%) and a rather narrow daily temperature range (14.4°).
The rainfall total of 50.2 mm (estimated) is at the 36th percentile for November, somewhat below the average (67 mm).
I have reported the drought in another post.

Climate in November months

Data. A Bureau of Meteorology automatic rain gauge operates in the museum yard. From 17 March 2017, 9 am daily readings are published as Manilla Museum, Station 55312.  These reports use that rainfall data when it is available.  The record was again defective in November 2018. No 9 am readings were recorded. I have substituted my non-standard gauge readings for all days.
All other data, including subsoil at 750 mm, are from 3 Monash Street, Manilla.

February 2017 had the hottest day

Posted in Manilla NSW, Monthly weather by

February 2017 was a month of extreme heat and hardly any rain.

Rainbow

No-rain Rainbow

The temperature rose to 44.9° on the 11th, the highest reading in this record from 1999. The next day, at 43.8°, was the next highest, beating readings of 43.7° on 3/01/2014 and 43.2° on 12/01/2013. These extremely hot days were part of a long heat-wave. Every day reached above 30° for 64 days up to the 19th, and the average weekly temperature was above 30° (4° above normal) from the 1st to the 15th.
Nights also remained warmer than normal until, abruptly, the temperature fell to 9.5° on the 20th: the 4th coldest February night! After that, day and night temperatures were normal.
Rain showers were seen frequently, but the only daily readings (unofficial) were 1.1 mm on the 20th and 3.0 mm on the 27th.

Weather log February 2017

Comparing February months

This was by far the hottest February of the new century, with highest values of all three temperatures: mean maximum temperature (36.8°), mean average temperature (28.4°) and mean minimum temperature (20.0°). Subsoil temperature was normal.
While cloudiness was normal, a rather low dew point and rather wide daily temperature range reflect low moisture, while the rainfall was very low indeed.
The estimated monthly rainfall total of 4.1 mm exceeds that of just a very few February months: 1901 (2 mm), 1932 (3 mm), and perhaps 1923 and 1938 (both 4 mm), but no others. However, this extremely low rainfall for the month has not brought any serious rainfall shortages for totals of more than one month. The four-month total of 123 mm is at the 17th percentile, which is not even as bad as the five-year total (2844 mm) which is at the 14th percentile.

Climate for February 2017.

Data. Rainfall figures are usually from the automatic rain gauge at Manilla, published on the internet by the Bureau of Meteorology as Station 55031. However, the gauge ceased recording four months ago (8/10/16), and this month’s readings are from my non-standard gauge. All data, including subsoil at 750 mm, are from 3 Monash Street, Manilla.

January 2017 had the hottest night

Posted in Manilla NSW, Monthly weather by
Cumulus congestus at 130 km

Showers at 130 kilometres

The daily weather log

In the early morning on the 14th, the minimum temperature was 28.2°, the hottest night in this record from 1999. That beat 27.8° set on November the 28th, 2009. Of January months, only this month and January 2006 had no nights as cool as 15°. There were no cool days either: like January 2002, no days were as cool as 30° (and none since 16/12/16). However, only two days this month went over 40°: the 12th with 41.4° and the 13th with 41.2°. That hardly compares with January 2003, which had five. The weekly average temperature was over 30° (4.7° above normal) from the 11th to the 15th. Late in the month, it got as low as 28°, then climbed again.
Showers and storms brought rain on 8 days, but the maximum was only 19.8 mm.

Weather log January 2017

Comparing January months

As in December, this was the hottest January of the new century. It easily beat January 2013 in mean daily maximum (36.4°), mean average (28.7°), and especially mean daily minimum (hot nights: 21.0°). As this months days and nights were both so warm, the daily temperature range was quite normal (15.4°).
Contradicting the high air temperatures, the subsoil temperature was below normal, at 25.1°.
The month was more humid than usual. Afternoon humidity, at 36%, was the highest January value in twelve years (normally 28%), and early morning dew point was the highest in eleven years.
The monthly rainfall total of 48.5 mm is in the 30th percentile, well below the average of 87 mm. Rainfall totals for more than one month still show no shortages. The 48-month total of 2320 mm (down 280 mm) has the lowest percentile value (23rd percentile) as a legacy of dry months around 2013.

Climate for January

 

Data. Rainfall figures are usually from the automatic rain gauge at Manilla, published on the internet by the Bureau of Meteorology as Station 55031. However, the gauge ceased recording four months ago (8/10/16), and this month’s readings are from my non-standard gauge. All data, including subsoil at 750 mm, are from 3 Monash Street, Manilla.