Temperature and Rainfall Trends for Mt. Roskill, Auckland

With the ever increasing concern over Global Warming, I decided it would be worthwhile to start recording overall temperature and rainfall trends here at The Sanctuary. Obviously it's going to take a long time before a pattern starts to emerge and, of course, results will be localised. Those of you who are regular visitors to this site will be able to watch as the pattern gradually builds. Please Note: Trends are based solely on data recorded at Sanctuary Weather Sation since 2010.

Annual Temperature Trend
Month Average since 2010 Current Month Difference
January 20.0°C 22.1°C (2018) 2.1°C2.1°C Warmer than All-Time Average Temperature.
February 20.3°C 21.1°C (2018) 0.8°C0.8°C Warmer than All-Time Average Temperature.
March 19.1°C 19.8°C (2018) 0.7°C0.7°C Warmer than All-Time Average Temperature.
April 17.6°C 17.2°C (2018) -0.4°C0.4°C Colder than All-Time Average Temperature.
May 15.2°C 14.5°C (2018) -0.7°C0.7°C Colder than All-Time Average Temperature.
June 13.3°C 11.8°C (2018) -1.5°C1.5°C Colder than All-Time Average Temperature.
July 11.4°C 11.4°C (2018) 0.0°C 
August 12.0°C 11.6°C (2017) -0.4°C0.4°C Colder than All-Time Average Temperature.
September 13.3°C 0.0°C (2017) -13.3°C13.3°C Colder than All-Time Average Temperature.
October 14.7°C 0.0°C (2017) -14.7°C14.7°C Colder than All-Time Average Temperature.
November 16.3°C 17.9°C (2017) 1.6°C1.6°C Warmer than All-Time Average Temperature.
December 18.8°C 20.5°C (2017) 1.7°C1.7°C Warmer than All-Time Average Temperature.
Average 12 Month Temperature since 2010: 16°C
Current 12 Month Temperature: 13.9°C
Current 12 Month Temperature Trend: -2.1°C2.1°C Colder than All-Time Average Temperature.

Annual Rainfall Trend
Month Average since 2010 Current Month Difference
January 75.8 mm 154.6 mm (2018) 78.80 mm78.8 mm more than All-Time Average Rainfall.
February 88.8 mm 206.2 mm (2018) 117.40 mm117.4 mm more than All-Time Average Rainfall.
March 124.2 mm 82.8 mm (2018) -41.40 mm41.4 mm Colder than All-Time Average Temperature.
April 101.4 mm 156.8 mm (2018) 55.40 mm55.4 mm more than All-Time Average Rainfall.
May 157.2 mm 153.8 mm (2018) -3.40 mm3.4 mm less than All-Time Average Rainfall.
June 156.5 mm 196.2 mm (2018) 39.70 mm39.7 mm more than All-Time Average Rainfall.
July 148.2 mm 80.4 mm (2018) -67.80 mm67.8 mm less than All-Time Average Rainfall.
August 145.2 mm 129.6 mm (2017) -15.60 mm15.6 mm less than All-Time Average Rainfall.
September 150.2 mm 118.8 mm (2017) -31.40 mm31.4 mm less than All-Time Average Rainfall.
October 75.5 mm --- mm (2017) -75.50 mm75.5 mm less than All-Time Average Rainfall.
November 79.8 mm 124.6 mm (2017) 44.80 mm44.8 mm more than All-Time Average Rainfall.
December 88.5 mm 17.8 mm (2017) -70.70 mm70.7 mm less than All-Time Average Rainfall.
Average 12 Month Rainfall since 2010: 1,391.30 mm
Rainfall for last 12 months: 1,485.40 mm
Current 12 Month Rainfall difference: 94.10 mm94.1 mm more than All-Time Average Rainfall.
This data is reflective of 12 month trending at the Sanctuary Weather Sation Weather Station location. This is not official scientific data. The weather data presented here is based on data collected since 2010. Script courtesy of  Michael Holden from Relay Weather. Script calculations courtesy of Murry Conarroe of Wildwood Weather.