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December 2011 December 2011 Summary Temperature Mean 15.5 C Mean Maximum 20.3 C Mean Minimum 11.4 C Maximum High 28.2 C (28th) Maximum Low 15.0 C (14th) Minimum High 12.9 C (16th) Minimum Low 5.2 C (20th) Wind Speed and Direction Maximum Gust 51 km/h (11th) Mean 8.3 km/h Wind Run 5880 km Max Daily Windrun 375 km (11th) Prevailing Direction East Nth East Barometer Maximum 1029.6 hPa (21st) Minimum 999.0 hPa (15th) Mean 1015.4 hPa Max Daily Change +13.5 hPa (8th) Rainfall Days with Measured Rainfall (Greater than 0.2mm) 6 Max Daily Rainfall 23.5 mm (16th) Monthly Rainfall 60.0 mm Humidity Maximum 99 % (7th & 16th) Minimum 26 % (4th) December Daily Observations Temperature Wind Rainfall Barometer Date Min Max Mean Mean (Km/h) Gust (Km/h) Run (km) Prevailing Dir 10 Minute Max (mm) Total (mm) Min (hPa) Max (hPa) Change (hPa) 1 12.2 22.1 16.6 11.5 41 265 East Nth East 0 0 1020.2 1026.3 -6.1 Clear and sunny with mild NE winds 2 7.9 28.0 17.8 5.8 34 131 East Nth East 0 0 1018.3 1021.9 -3.6 Sunny with some thin high cloud in the afternoon. Light southerly winds turning NE in the afternoon. 3 9.2 24.7 19.1 6.4 33 143 East Nth East 0 0 1006.9 1018.7 -11.8 Warm and sunny for much of the day. Cloud increasing from afternoon and a few spots of rain in the evening. 4 12.8 26.4 19.5 9.4 34 200 East Nth East 0 0 1004.2 1011.4 +7.2 Warm and sunny morning. Cloud increasing from mid afternoon. NE winds turning south to SW from mid morning. 5 11.8 18.4 14.1 11.5 36 247 South West 0 0 1009.9 1012.1 +2.2 Cloudy with some breaks. Cloud lowering from late afternoon with drizzle. 6 11.3 13.9 12.3 9.0 24 200 South West 1.0 12.0 1002.8 1011.8 -9.0 Overcast with drizzle and light rain during the day. Heavier rain from evening. 7 9.7 13.2 10.8 14.7 42 332 South Sth West 1.0 19.0 1002.8 1008.1 +5.3 Overcast with rain in the morning clearing in the afternoon with cloud breaking. Cool southerly winds. 8 9.3 16.5 12.0 3.3 21 75 South Sth West 0 0 1008.2 1021.7 +13.5 Overcast with light southerly winds turning NE from late afternoon. 9 7.2 19.1 14.1 7.2 31 166 East Nth East 0 0 1021.7 1028.3 +6.6 Clear and sunny for much of the day. High cloud increasing from late afternoon, NE winds. 10 12.9 19.0 14.7 12.4 45 285 East Nth East 0 0 1024.7 1028.5 -3.8 Cloudy but some sunny spells. Fresh NE wind. 11 13.0 17.6 14.7 16.3 51 375 East Nth East 0 0 1015.2 1024.8 -9.6 Cloud breaking in the afternoon, fresh to strong NE wind. 12 14.0 21.8 17.2 11.7 37 268 East Nth East 0 0 1009.1 1015.4 -6.3 Mostly overcast with NE winds easing during the afternoon. 13 13.6 27.7 19.0 6.5 24 148 East Nth East 0 0 1010.0 1012.8 +2.8 Clear and sunny with southerly winds turning NE in the afternoon. Cloud increasing in the evening. 14 15.0 17.8 16.2 9.9 39 226 East Nth East 0.5 4.0 1000.4 1012.4 -12.0 Overcast with showers, NE winds. 15 12.9 19.4 16.4 10.1 31 232 East Nth East 0.5 0.5 999.0 1002.7 +3.7 Overcast with showers around midday. NE changing southerly in the evening. 16 9.2 12.9 11.2 15.3 47 349 South Sth West 2.0 23.5 1002.3 1009.9 +7.6 Overcast with morning rain easing in the afternoon. Cool southerly winds. 17 9.2 15.8 11.5 10.5 32 239 South Sth West 0 0 1010.0 1015.2 +5.2 Cloud breaking and southerly wind easing in the afternoon. Becoming overcast in the evening. 18 9.7 16.4 12.1 5.6 31 126 South Sth West 0 0 1014.9 1018.7 +3.8 Mostly cloudy with southerly winds. 19 7.8 18.1 12.8 5.0 24 113 South Sth West 0 0 1017.0 1019.6 +2.6 Cloud breaking and clearing in the afternoon. Southerly winds. 20 5.2 20.0 12.6 4.1 25 94 East Nth East 0 0 1019.8 1027.8 +8.0 Broken cloud with sunny intervals. Southerly winds turning NE in the afternoon. 21 10.5 18.9 14.3 6.2 29 142 East Nth East 0 0 1027.0 1029.6 +2.6 Morning cloud clearing to a sunny afternoon with NE winds. 22 12.0 21.7 15.9 6.8 27 156 East Nth East 0 0 1026.7 1029.4 -2.7 Morning cloud clearing by midday. Mild with mostly light NE winds. 23 10.0 21.5 15.8 6.4 28 146 East Nth East 0 0 1023.1 1028.7 -5.6 Sunny with some high cloud, NE winds. 24 11.8 20.3 16.2 9.1 34 209 East Nth East 0 0 1020.4 1024.4 -4.0 Clear and sunny for much of the day. Cloud increasing from later in the afternoon. NE winds. 25 14.3 20.5 17.0 10.3 34 236 East Nth East 0 0 1019.0 1022.3 -3.3 Morning cloud clearing to a sunny day. High cloud increasing in the evening, NE winds. 26 14.9 23.5 18.0 8.2 34 190 East Nth East 0 0 1014.1 1021.3 -7.2 Little cloud, sunny and mild with NE winds in the afternoon. 27 14.8 27.0 19.7 8.3 29 191 East Nth East 0 0 1007.7 1014.8 -7.1 Sunny and warm with NE winds in the afternoon. 28 13.9 28.2 20.5 3.9 24 90 East Nth Eat 0 0 1007.1 1011.3 +4.2 Overcast with high cloud. Light southerly breezes turning NE in the afternoon 29 12.6 23.0 18.1 3.3 24 75 East Nth East 0 0 1005.0 1009.8 -4.8 Overcast with a few spots of rain in the afternoon, light NE winds. 30 12.4 16.4 14.3 6.5 34 147 South Sth West 0.5 1.0 1007.4 1018.0 Overcast with early showers and some light showers during the day. Cooler with southerly winds, light breezes during the day turning NNE in the evening.. 31 12.0 19.8 14.6 3.0 19 68 East Nth East 0 0 1012.4 1017.8 -5.4 Overcast with light NE winds.   This work is licensed under a Creative Commons Attribution-Noncommercial 3.0 New Zealand License.