Tag Archives: 2014

Warm humid nights in April 2014

Posted in Manilla NSW, Monthly weather by

The daily weather log

April-blooming Deane's wattle

April-blooming Deane’s wattle

After a cool wet week at the end of March, April began warm, especially at night. The night of the 5th, at 18.8°, was the second warmest April night. Rain fell overnight, and the dew point, 18.5°, was an April record. The third week was sunny but cool, and the fourth week nearly four degrees warmer than usual. The last day of the month was suddenly cold (16.9°) and overcast, with drizzle.Weather log April 2014

Comparing April months

The mean minimum temperature was a record 1.7° above normal for the month, warmer than in April 2005, and the mean maximum temperature was also slightly up. The subsoil, after more than two years above normal (by as much as 2.4° in winter 2013), finally cooled down in March and April.
Moisture was near normal, with low rainfall offset by cloudy skies.
Although the total rainfall of 13.0 mm was below the April average (40 mm), it was not unusually low but in the 28th percentile. Taking rainfall totals for more than one month, the greatest shortages are not serious (i.e. not below the 10th percentile). The nine month total (336 mm) is in the 14th percentile. Other totals have higher percentile values, and most totals for 30 months or more are above normal. Pools still survive in Greenhatch Creek.Climate April 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.

3-year trends to March 2014

Posted in 3-year climate trends, Manilla NSW by

Parametric plots of smoothed climate variables at Manilla

“Plunge toward ‘flooding rains’ *“Trends to March 2014.

Raw values of climate anomalies for March 2014 are nearly all in the bottom left corner “flooding rains” after months in the opposite corner “droughts”. Daily minimum temperature remains high: nights are warm.
Fully-smoothed values for September 2013 show that the drought was becoming as severe as in 2002. The dew point anomaly reached a new record low value of -3.94°.

* By arrangement with the Licensor, The Dorothea Mackellar Estate, c/- Curtis Brown (Aust) Pty Ltd.

Note: Fully smoothed data – Gaussian smoothing with half-width 6 months – are plotted in red, partly smoothed data uncoloured, and raw data for the last data point in orange. January data points are marked by squares. Blue diamonds and the dashed blue rectangle show the extreme values in the fully smoothed data record since September 1999.

Rainy March 2014

Posted in Manilla NSW, Monthly weather by

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.

 

3-year trends to February 2014

Posted in 3-year climate trends, Manilla NSW by

Parametric plots of smoothed climate variables at Manilla

“Drought advanced in winter; now retreating”Trends to February 2014

Raw values of climate anomalies for February 2014 moved positively away from the high temperature and low moisture of “droughts”. Daily minimum temperature increased but this, too, goes with more moisture.
Data points for the three months of winter 2013 are now fully-smoothed. They show a steady progress towards drought in increasing maximum temperature and daily temperature range, and reducing rainfall, cloudiness, and humidity (dew point). Daily minimum temperature and subsoil temperature  peaked already in July.

Note: Fully smoothed data – Gaussian smoothing with half-width 6 months – are plotted in red, partly smoothed data uncoloured, and raw data for the last data point in orange. January data points are marked by squares. Blue diamonds and the dashed blue rectangle show the extreme values in the fully smoothed data record since September 1999.

Warm Dry February 2014

Posted in Manilla NSW, Monthly weather by

The daily weather logWeather log February 2014.

The month began sunny and dry, with extremely low humidity. The second week brought a warm spell, which became humid and cloudy, leading to rain. There were eight rain days, with 18.8 mm recorded on the 17th. The fourth week was fine, with normal temperatures.

Comparing February monthsClimate February 2014.

Like February 2011, this month was very warm, but not quite as warm as February 2006. February 2008 had been five degrees cooler, and February 2012 and 2013 also very cool.
The humidity, shown by early morning dew point, has fallen steadily for four February months. It was 15.6° in 2010, and is now a record low of 10.3°. February mean relative humidity values, which had been steady from 2006 to 2013, fell sharply to 2014: afternoon values fell from 31% to 16% and morning values from 80% to 58%.
The total rainfall of 37.4 mm is well below the February average of 67 mm and far below that for February 2012 (194 mm), the fifth wettest on record. This is the forty-fourth driest, and in the 35th percentile. Taking rainfall totals for more than one month, the greatest shortages are not serious (i.e. not below the 10th percentile). The two month total (39 mm) and the twelve-month total (452 mm) are both in the 12th percentile. Other totals have higher percentile values, and most totals for 30 months or more are above normal. Pools survive in Greenhatch Creek.

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.