December Summary

Near average temperature, below average rainfall and wind run.

  • December was above my average temperature of 15.6C with 15.9C.
    • The warmest is 2010 with 17.4C, the coolest, 2004 with 12.7C.
    • The warmest temperature was 31.9C, the highest December temperature I've recorded is 35.2C in 2015
    • The coldest temperature was 4.5C. The lowest December temperature I've recorded was in 2006 with 1.3C.
    • Twenty nine days reached or exceeded 15C, my average is 29.
    • Seventeen days reached or exceeded 20C, may average is 18.
    • Eight days reached or exceeded 25C, my average is 7.
    • Three days reached or exceeded 30C, my average is 1.
  • Wind run was 88% of my average of 5788km with 5085km. December is the windiest month of the year.
  • The barometer recorded below average pressure for the month with 1008.0hPa. My average is 1011.4hPa.
  • Rainfall was 75% of my average expected total of 56.8mm with 42.5mm.
    • The driest December is 2003 with 2mm, the wettest is 2004 with 137.8mm.
December 2016 Summary
Temperature
Mean 15.9 C
Mean Maximum 21.4 C
Mean Minimum 10.6 C
Maximum High 31.9C (21st)
Maximum Low 14.1 C (22nd)
Minimum High 12.5 (1st)
Minimum Low 4.5 C (16th)
Wind Speed and Direction
Maximum Gust 54 km/h (10th)
Mean 7.5 km/h
Wind Run 5085 km
Max Daily Windrun 285 km (9th)
Prevailing Direction East North East
Barometer
Maximum 1021.6 hPa (5th)
Minimum 988.5 hPa (15th)
Mean 1008.0 hPa
Max Daily Change -17.6 hPa (31st)
Rainfall
Days with Measured Rainfall
(0.5mm or more)
8
Max Daily Rainfall 15.5 mm (11th)
Monthly Rainfall 42.5 mm
Humidity
Maximum 98 % (2nd)
Minimum 20 % (21st)

 

December Daily Observations
TemperatureWindRainfallBarometer
DateMinMaxMeanMean
(Km/h)
Gust
(Km/h)
Run (km)Prevailing Dir10 Minute Max (mm)Total (mm)Min (hPa)Max (hPa)Change (hPa)
1                        
Weather station off line for most of the day. Overcast with NE winds, a few spots of rain in the evening.
2 9.8 13.7 11.5 3.3 19 71 East Nth East 0.5 4.0 1014.7 1017.5 +2.8
Overcast with morning showers. Southerly winds turning NE early afternoon.
3 7.9 20.0 14.5 7.3 34 116 East Nth East 0 0 1006.5 1016.2 -9.7
Some high cloud but mostly sunny with a NE wind.
4 12.1 20.3 14.5 6.6 34 151 East Nth East 0 0 1008.7 1019.8 +11.1
Overcast with variable winds turning NE from mid afternoon.
5 9.8 18.7 15.0 10.5 43 239 East Nth East 0 0 1015.0 1021.6 -6.6
Sunny with a fresh NE wind.
6 12.0 30.0 19.2 5.7 32 130 East Nth East 0 0 1009.8 1014.9 -5.1
Sunny morning with NE winds turning warm westerly from late morning with overcast skies. Light NE winds from late afternoon.
7 13.9 18.9 16.0 5.5 23 123 South Sth West 0.5 0.5 1002.4 1009.9 -7.5
Overcast with morning shower clearing about midday, southerly winds.
8 13.8 18.3 14.9 8.1 29 183 South Sth West 0 0 1005.2 1014.1 +8.9
Overcast with some morning drizzle, southerly winds turning NE in the evening.
9 12.8 18.8 15.2 12.5 48 285 East Nth East 0 0 997.3 1013.8 -16.5
Overcast with a fresh NE wind.
10 13.2 28.9 19.7 11.5 54 263 East Nth East 0 0 989.0 996.9 -7.9
NE wind turning warm gusty nor'west from mid afternoon, cooler southerly change in the evening. Overcast in the morning, cloud breaking in the afternoon.
11 10.5 17.6 13.1 8.7 38 199 South Sth West 2.0 15.5 997.7 1007.9 +10.2
Early morning rain then a few showers clearing by mid morning with cloud breaking in the afternoon. Cool southerly winds.
12 7.2 15.6 11.5 10.5 52 240 South Sth West 2.0 9.0 1005.2 1015.6 +10.4
Morning rain with a southerly change. Rain clearing by midday and cloud breaking in the afternoon.
13 8.0 17.6 13.0 6.5 36 149 East Nth East 0.5 2.5 1005.1 1015.8 -10.7
Early morning showers clearing before dawn. Sunny morning but high cloud increasing later in the morning. NE winds.
14 10.4 26.6 19.1 4.0 34 92 East Nth East 0 0 993.9 1005.1 -11.1
Variable cloud with winds tending NE from late morning
15 10.1 23.3 19.1 9.7 38 222 East Nth East 0 0 988.5 1001.7 +13.2
Few clouds, sunny with variable winds tending NE.
16 4.5 27.0 16.9 3.3 26 75 West Nth West 0 0 1002.2 1012.9 +10.7
Few clouds, light winds tending nor'west.
17 9.6 18.7 15.2 11.8 45 271 East Nth East 0 0 1011.2 1017.3 -6.1
sunny morning, cloud increasing from afternoon, fresh NE wind.
18 14.0 27.6 18.9 7.2 34 165 East Nth East 0 0 996.5 1010.9 -14.4
Mostly cloudy with light winds, cloud breaking late afternoon with a warm northerly. Maximum temperature was recorded at 6:20pm.
19 8.6 25.6 17.4 7.6 36 173 West Nth West 0 0 1000.1 1011.6 +11.5
Sunny with a few clouds. NE winds turning warm northerly from midday.
20 6.5 18.6 14.1 10.1 42 230 East Nth East 0 0 1011.9 1020.0 +8.1
Some cloud at times but mostly sunny a with fresh NE wind.
21 13.1 31.9 21.4 8.9 38 201 East Nth East 0 0 1002.4 1016.3 -13.9
Sunny and very warm with winds turning nor'west from mid afternoon.
22 14.1 23.2 20.0 6.9 32 157 East Nth East 0 0 996.3 1002.0 -5.7
Overcast for most of the day with variable winds tending NE. Cloud breaking in the evening.
23 11.2 15.9 12.9 6.3 32 143 South Sth West 1.0 4.0 1000.4 1008.1 +7.7
Overcast with showers and rain from late morning, clearing from mid afternoon with a southerly change.
24 9.9 22.2 14.6 8.5 28 194 South Sth West 0.5 3.0 1005.5 1009.0 -3.5
Early showers. Variable cloud, southerly winds turning NE from mid afternoon
25 11.1 20.0 15.1 2.5 24 55 South Sth West 0 0 1008.7 1017.6 +8.9
Overcast for most of the day, cloud breaking late afternoon. Light winds tending southerly.
26 10.7 20.6 15.3 6.1 34 139 East Nth East 0 0 1012.1 1018.2 -6.1
Mostly overcast but cloud breaking at times, NE wind.
27 11.5 30.6 19.5 7.7 36 175 East Nth East 0 0 998.5 1011.5 -13.0
Cloudy with light NE winds on the morning. Warm northerly winds from midday and cloud breaking from mid afternoon. A cooler southerly change in the evening.
28 12.1 19.9 14.9 8.5 30 194 East Nth East 0 0 1009.7 1012.5 +2.8
Mostly cloudy with NE winds.
29 7.4 18.4 12.4 3.8 22 85 South Sth West 0.5 4.0 1009.5 1013.0 +3.5
Morning drizzle clearing but remaining overcast. Light southerly winds.
30 6.7 20.8 14.4 6.9 34 158 East Nth East 0 0 1008.1 1012.8 -4.7
Sunny with NE winds.
31 13.8 22.8 18.8 7.9 34 178 East Nth East 0 0 993.7 1011.3 -17.6
Sunny morning. Increasing cloud with some sunny intervals, NE easing later in the afternoon.


December 2016  Temperature Graph
December 2016 Wind Dir Graph
December 2016 Wind Dir % Graph
December 2016 Wind Speed Graph
December 2016 Rainfall Graph
December 2016 Barograph
December 2016 Humidity Graph