February Climate Anomalies Log

Heat indicators log for February

This post is the twelfth in a set for the 12 calendar months that began with March. Graphs are sixteen-year logs of the monthly mean anomaly values of nine climate variables for Manilla, NSW, with fitted trend lines. I have explained the method in notes at the foot of the page.

Raw anomaly values for February

Extreme values of February anomalies were as follows:

Daily Maximum Temperature Anomalies (3) -4.2 deg: February 2008; -3.3 deg: February 2012; -3.3 deg: February 2013;
Daily Mean Temperature Anomalies (1) -3.3 deg: February 2008;
Rainfall Anomalies (1) +120 mm: February 2012;
Dew Point Anomalies (2) -4.6 deg: February 2014; -4.6 deg: February 2015.

Trend lines for February

Heat Indicators

All heat indicator quartic trends began slightly low and ended slightly low. They had a low peak about 2004, and a trough later. The trough was deepest and earliest for daily maximum temperature (2011), followed by daily mean temperature in 2012, daily minimum temperature in 2014, and subsoil temperature in 2015 or later.

Moisture indicators log for February

Continue reading

January Climate Anomalies Log

Heat indicators log for January

This post is the eleventh in a set for the 12 calendar months that began with March. Graphs are sixteen-year logs of the monthly mean anomaly values of nine climate variables for Manilla, NSW, with fitted trend lines. I have explained the method in notes at the foot of the page.

Raw anomaly values for January

Extreme values of January anomalies were as follows:

Daily Maximum Temperature Anomalies (1) -3.7 deg: January 2012;
Rainfall Anomalies (5) -70 mm: January 2002; -75 mm: January 2003; +80 mm: January 2004; +94 mm: January 2006; -85 mm: January 2014;
Dew Point Anomalies (2) +3.1 deg: January 2006; -7.4 deg: January 2014.

Trend lines for January

Heat Indicators

All heat indicator quartic trends began low and ended slightly high, and had a low peak in 2003, -05, or -06, and a shallow trough about 2012.

Moisture indicators log for January

Continue reading

December Climate Anomalies Log

Heat indicators log for December

This post is the tenth in a set for the 12 calendar months that began with March. Graphs are sixteen-year logs of the monthly mean anomaly values of nine climate variables for Manilla, NSW, with fitted trend lines. I have explained the method in notes at the foot of the page.

Raw anomaly values for December

Extreme values of December anomalies were as follows:

Daily Maximum Temperature Anomalies (2) -3.6 deg:
December 2010; -4.7 deg: December 2011;
Rainfall Anomalies (1) +80 mm: December 2004;
Minus (Temperature Range Anomaly) (1) +3.7 deg: December
2010;
Dew Point Anomalies (1) -4.4 deg: December 2013.

Trend lines for December

Heat Indicators

All heat indicator quartic trends began low and ended high, and had a peak in 2003 or 2004 and a trough in 2010. The range from peak to trough was greatest for maximum anomalies and least for minimum and subsoil anomalies.

Moisture indicators log for December

Continue reading

November Climate Anomalies Log

Heat indicators log for November

This post is the ninth in a set for the 12 calendar months that began with March. Graphs are sixteen-year logs of the monthly mean anomaly values of nine climate variables for Manilla, NSW, with fitted trend lines. I have explained the method in notes at the foot of the page.

Raw anomaly values for November

Extreme values of November anomalies were as follows:

Daily Maximum Temperature Anomalies (4) +3.6 deg: November 2002; +5.5 deg: November 2009; +3.0 deg: November 2012; +5.0 deg: November 2014;
Daily Mean Temperature Anomalies (2) +4.6 deg: November 2009; +4.0 deg: November 2014;
Daily Minimum Temperature Anomalies (1) +3.8 deg: November 2009;
Rainfall Anomalies (4) +65 mm: November 2000; +66 mm: November 2001; +65 mm: November 2008: +176 mm!: November 2011;
Dew Point Anomalies (2) -5.4 deg: November 2013; -4.1 deg: November 2014;
Moisture Index (1) +3.3 deg: November 2011.

Trend lines for November

Heat Indicators

All heat indicator quartic trends began low and ended high. The trends for daily maximum and for subsoil had a peak in 2003 or 2004 and a trough in 2008 or 2010. The trend for daily mean was constant from 2004 to 2008, while the trend for daily minimum persistently rose, at a reducing rate.

Moisture indicators log for November

Continue reading

October Climate Anomalies Log

Heat Indicators log for October months

This post is the eighth in a set for the 12 calendar months that began with March. Graphs are sixteen-year logs of the monthly mean anomaly values of nine climate variables for Manilla, NSW, with fitted trend lines. I have explained the method in notes at the foot of the page.

This series of posts gets more than its share of views. This is strange, as they contain little information. Comparing graphs for adjacent months shows widely different values and trends. In due course, I will compare all twelve months with each other. Perhaps that will yield interesting results, or perhaps not.

Raw anomaly values for October

Extreme values of October anomalies in this period were all in the “Moisture Indicators” group:

Cloudy days % anomalies (2) +31%: October 2010, 2011;
Dew Point Anomalies (5) +3.9°: October 1999, -3.9°: October 2002, -6.6°: October 2012, -7.8°: October 2013, -5.9°: October 2014.
Moisture Index (2) -3.1°: October 2012, -3.2°: October 2013.

Trend lines for October

Heat Indicators

The trend lines of daily maximum, mean and minimum temperature anomalies all had an early trough in 2001, a peak near 2006, and a trough near 2011. The daily minimum trend had the longer period and the larger amplitude. The subsoil temperature trend peaked early, in 2001, and had a very broad trough around 2009.

Moisture Indicators log for October months

Continue reading