3-year trends to May 2014

Parametric plots of smoothed climate variables at Manilla
“Drought status not clear”

Trends to May 2014

May data (orange)

Raw data for May 2014 give mixed signals on whether the drought is fading. Daily maximum temperature is now on the high limit of the normal range and rainfall again well into the “drought” range. However, other variables do not agree: skies were very cloudy, and dew point and daily temperature range were back to normal.

Fully smoothed data (red)

The spring months (SON) of 2013 are now fully smoothed, with some variables showing a drought peak in that season.
Smoothed daily maximum temperature anomaly peaked in October, reaching a record high of +1.39°, beating +1.34° in November 2009 and +1.30° in September-October 2002. Through spring the smoothed rainfall anomaly decreased; it may have reached a minimum in January. Dew point also decreased, the smoothed anomaly reaching a new record low of -4.85° in November, and likely to reach a minimum in December.
Cloudiness reached a minimum in October, and daily minimum temperature and subsoil temperature anomalies had reached maximum values earlier, 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.

Normal values are based on averages for the decade from March 1999. They appear on these graphs as a turquoise (turquoise) circle at the origin (0,0). A range of anomalies called “normal” is shown by a dashed rectangle in aqua (aqua). For values in degrees, the assigned normal range is +/-0.7°; for cloudiness, +/-7%; for monthly rainfall, +/-14 mm.

 

3-year trends to April 2014

Parametric plots of smoothed climate variables at Manilla
“Are we coming out of drought?”

Trends to April 2014

After a very cool moist March, raw values of climate anomalies for April 2014 are nearly all back near the (slightly smoothed) values for February. However, neither month was as hot or dry as December or January.
Fully-smoothed values for October 2013 show the deepening drought. That month set a new 21st century record for smoothed daily maximum temperature anomaly of +1.39°, beating the value of +1.35° set in November 2009. It also set a new low record for dew point anomaly of -4.53°, far more arid than the record set the previous month: -3.53°.
These curves show clearly that the climate (at this site) consistently became warmer and drier through the two years from spring 2011 to spring 2013, except for a brief time of reversal in the six warm-season months from October 2012 to March 2013.

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.

3-year trends to December 2013

Parametric plots of smoothed climate variables at Manilla
“Still in drought”Trends to December 2013.

Raw anomaly values for climate variables for December 2013 are nearly all in the top right “droughts” corner.

Six months earlier, the fully-smoothed data point for June 2013 also moved towards drought. The value for subsoil anomaly reached a new record of 2.31 degrees.

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.

3-year trends to November 2013

Parametric plots of smoothed climate variables at Manilla
“Less droughty”

Trends to November 2013.

Most raw anomaly values (orange) for November climate variables remained on the “drought” side of normal, but less extreme than in October. As an exception, rainfall was very high.

Fully-smoothed data points (red) for autumn (MAM) of 2013 show a climate that was normal in the context of the decade beginning April 1999. Anomalies were high cloudiness, low dew point and warm subsoil. The last fully-smoothed data point, for May 2013, moved towards drought.

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.

3-year trends to October 2013

Parametric plots of smoothed climate variables at Manilla
“Even more arid”Trends to October 2013.

Of the raw values of climate anomalies in October 2013, daily maximum temperature, among others, fell back from the extreme high reached in September. However, rainfall and dew point became extremely low, and temperature range extremely wide, suggesting extreme drought.

Anomalies of fully-smoothed points for April 2013 were mainly near zero, like those of March. That is, the climate was quite normal.

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.