December Summary;

A close to average month for temperature and wind but had higher average barometric pressure and low rainfall.

  • December was almost equal to my average temperature of 15.6C with 15.5C.
    • The warmest December is 2010 with 17.4C, the coolest 2004 with 12.7C.
    • The coldest temperature was 5.4C. The lowest December temperature I've recorded was in 2006 with 1.3C.
    • No frosts were recorded
    • Twenty nine days reached or exceeded 15C, equalling my average.
    • Seventeen days reached or exceeded 20C, my average is 18.
    • Seven days reached or exceeded 25C, equalling my average.
    • One day reached or exceeded 30C, equalling my average.
  • Wind run was 98% of my average of 5902 with 5798km.
  • The barometer recorded above average pressure for the month with 1015.0 hPa. My average is 1011.3hPa.
  • Rainfall was 43% of my average expected rainfall of 60mm with 26mm which made this the second driest I've recorded.
    • The driest December I've recorded was 2003 with 2mm, the wettest was 2004 with 138mm.
December 2014 Summary
Temperature
Mean 15.5 C
Mean Maximum 20.9 C
Mean Minimum 11.2 C
Maximum High 31.5 C (27th)
Maximum Low 16.7 C (20th)
Minimum High 14.2 C (1st)
Minimum Low 5.4 C (3rd)
Wind Speed and Direction
Maximum Gust 53 km/h (10th)
Mean 8.6 km/h
Wind Run 5798 km
Max Daily Windrun 323 km (17th)
Prevailing Direction East North East
Barometer
Maximum 1028.0 hPa (29th)
Minimum 991.6 hPa (31st)
Mean 1015.0 hPa
Max Daily Change +20.6 hPa (7th)
Rainfall
Days with Measured Rainfall
(0.5mm or more)
11
Max Daily Rainfall 5.5 mm (21st)
Monthly Rainfall 26.0 mm
Humidity
Maximum 97 % (Several Days)
Minimum 25 % (27th)

 

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 6.3 14.2 9.6 8.2 39 181 South Sth West 0.5 4.5 1005.8 1019.1 +13.3
Morning showers clearing and cloud breaking in the afternoon. Showers returning in the evening. Cool southerly winds.
2 6.8 16.0  11.2  6.7  30  148  South Sth West  0.5  2.5  1018.5  1025.2  +6.7 
Morning showers clearing early and cloud breaking to a mostly sunny afternoon. Cool southerly winds easing in the evening.
3 5.4  16.9  11.9  7.6  35  174  East Nth East  1014.7  1024.9  -10.2 
Some cloud but mostly sunny with NE winds.
4 10.0 27.1  15.8  5.8  40  129  South Sth West  1.0  2.5  1010.7  1019.9  +9.2 
Variable breezes turning warm northerly then southerly later in the afternoon. Cloud increasing during the day, rain in the evening.
5 9.0 15.9  11.5  8.9  32  200  South Sth West  0.5  1.5  1019.1  1023.1  +4.0 
Light rain and drizzle clearing in the morning and cloud breaking in the afternoon. Cool southerly winds.
6 10.8 16.7  13.8  10.6  44  243  East Nth East  1009.2  1022.6  -13.4 
Mostly cloudy with a few sunny intervals, NE winds.
7 10.4 28.5 16.6  9.9  46  218  South Sth West  1005.8 1026.4  +20.6
Mostly cloudy but some sunny intervals. Warm northerly breezes in the morning turning cooler fresh southerly from late morning.
8 8.2  15.9  12.3  7.6  39  172  East Nth East  1019.5  1026.6  -7.1 
Mostly cloudy with some sunny intervals in the afternoon, NE winds
9 12.1 25.4  17.5  8.0  36  182  East Nth East  1003.0  1019.3  -16.3 
Mostly cloudy, NE winds turning warm north to NW in the afternoon with a few spots of rain.
10 9.5 16.6  12.0  9.1  53  185  South  1.0  4.0  1001.8  1015.7  +13.9 
Maximum temperature recorded at midnight. Southerly change arrived at 3am. Overcast and cool with light rain and showers in the morning. Showers clearing in the afternoon and wind easing.
11 8.6 14.5  11.3  8.0  37  182  East Nth East  0.5  0.5  1006.9  1015.3  -8.4 
Overcast with morning drizzle clearing by midday. NE winds.
12 10.9 19.4  13.8  6.1  27  122  South 0 0 1005.3  1012.7  +7.4 
Cloudy with some drizzle from late morning. Cloud breaking to a mostly sunny afternoon but cloud returning in the evening. Southerly winds dying away in the evening.
13 8.0 16.5  11.8  6.3  40  131  South  0.5 1.0  1011.4  1020.2  +8.8 
Mostly cloudy with light rain in the morning clearing by midday. cool southerly winds.
14 5.9 17.6  12.6  7.1  34  163  East Nth East  1015.1  1020.1  -5.0 
Few clouds, sunny with NE winds in the afternoon.
15 8.6 18.5  14.3  9.7  38  221  East Nth East  1014.3  1017.5  +3.2 
Few clouds, sunny with NE wind.
16 12.4 19.4  15.3  12.9  42  295  East Nth East  1014.9  1017.9  -3.0 
Morning cloud clearing to a sunny day with fresh NE winds.
17 13.7 19.7  15.5  14.4  45  323  East Nth East  0.5  0.5  1005.1  1015.8  -10.7 
Cloudy with a few breaks early afternoon, showers from late afternoon Fresh NE wind.
18 13.5 20.9  16.1  9.9  36  177  South  1003.3  1011.6  +8.3 
Overcast with light rain and drizzle at times. Cloud breaking later in the afternoon.
19 10.7 26.1  18.0  6.2  30  134  East Nth East  1009.0  1013.0  -4.0 
Sunny with some high cloud at times, mild with NE winds.
20 16.7 28.3  22.6  7.5  31  171  East Nth East  1001.0  1011.1  -10.1 
Overcast with high cloud, warm northerly winds from late morning.
21 11.9 22.7  17.2  9.6  32  159  South  2.0  5.5  1001.2  1015.9  +14.7 
Variable cloud but mostly sunny. Cloud increasing later in the afternoon with showers.
22 11.8 20.3  15.7  7.0  34  157  East Nth East  1014.5  1022.8  +8.3 
Cloud morning and evening but mostly sunny through the day with NE winds.
23 14.9 21.8  17.4  6.7  32  153  East Nth East  0 1022.3  1027.7  +5.4 
Morning cloud breaking midday but returning in the evening, NE winds.
24 14.8 21.1  17.4  12.8  42  292  East Nth East  1018.2  1027.2  -9.0 
Morning cloud clearing to a sunny day with NE winds.
25 10.8 20.5  16.0  8.9  37  162  South  1019.5  1023.9  +4.4 
Overcast with a few drizzle patches in the morning. Cloud breaking from midday to a mostly sunny afternoon. Southerly winds.
26 11.2 23.5  18.0  6.8  31  154  East Nth East  1016.3  1023.3  -7.0 
Early cloud clearing to a sunny and mild day with NE winds.
27 12.9 31.5 22.3  4.3  34  43  North Nth West  1013.6  1017.6  -4.0 
Sunny and warm from morning, overcast with high cloud in the afternoon, northerly winds during the day dying out in the evening.
28 15.5 20.4  17.5  8.5  40  147  South  0.5  1.0  1014.8  1027.8  +13.0 
Early showers clearing before dawn. Mostly cloudy but a few sunny intervals, southerly winds dying away in the evening.
29 14.1 20.6  17.1  11.0  42  250  East North East  1019.9  1028.0  -8.1 
Clear and sunny for most of the day, cloud increasing from late afternoon. NE winds, fresh in the afternoon.
30 15.3 24.5  18.8  9.4  32  214  East Nth East  1006.6  1019.8  -13.2 
Variable high cloud with some sunny intervals, NE winds.
31 16.2 27.3  20.7  11.2  40  249  East Nth East  0.5  2.5  991.6  1006.4  -14.8 
Variable cloud in the morning with NE winds. A period of rain after midday. Skies clearing later in the afternoon with winds turning warm northerly. Maximum temperature recorded at 5:30pm.


December 2014  Temperature Graph
December 2014  Wind Dir Graph
December 2014  Wind Dir % Graph
December 2014  Wind Speed Graph
December 2014  Rainfall Graph
December 2014  Barograph
December 2014  Humidity Graph