April Summary;

Above average temperature and near average rainfall.

  • April was above my average temperature of 11.8C with 13.0C.
    • The warmest April is 2006 with 13.8C, the coolest 2002 with 9.5C.
    • The coldest temperature was 2.1C. The lowest April temperature I've recorded was in 2011 with -1.7C.
    • No frosts were recorded
    • Twenty two days reached or exceed 15C, my average is 20.
    • Nine days reached or exceeded 20C, my average is 6.
    • Four days reached or exceeded 25C, my average is 1.
  • Wind run was 121% of my average of 3754km with 4544km.
  • The barometer recorded below average pressure for the month with 1013.7 hPa. My average is 1015.0 hPa.
  • Rainfall was 111% of my average expected rainfall of 65mm with 72.5mm.
    • The driest April was 2001 with 4.5mm, the wettest was 2014 with 201.5mm.
April 2015 Summary
Temperature
Mean 13.0 C
Mean Maximum 18.3 C
Mean Minimum 8.8 C
Maximum High 28.1 C (7th)
Maximum Low 13.5 C (26th)
Minimum High 10.4 C (14th)
Minimum Low 2.1 C (14th)
Wind Speed and Direction
Maximum Gust 59 km/h (15th)
Mean 7.2 km/h
Wind Run 4544 km
Max Daily Windrun 332 km (15th)
Prevailing Direction East North East
Barometer
Maximum 1033.8 hPa (22nd)
Minimum 982.2 hPa (13th)
Mean 1013.7 hPa
Max Daily Change +18.8 hPa (30th)
Rainfall
Days with Measured Rainfall
(0.5mm or more)
11
Max Daily Rainfall 22 mm (27th)
Monthly Rainfall 72.5 mm
Humidity
Maximum 100 % (Several Days)
Minimum 32 % (2nd)

 

April 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 6.5 19.3 13.3 5.6 30 129 East Nth East 0 0 1022.4 1025.7 -3.3
Few clouds, sunny with NE winds
2 9.1 26.0  16.9  3.2  24  67  South  1017.3  1022.9  -5.6 
Sunny with light southerly winds later in the morning, warm in the afternoon. Light NE winds from early evening.
3 11.5 22.6  16.5  5.9  32  135  East Nth East  1015.1  1023.2  -8.1 
Mild and mostly sunny with thin high cloud, NE winds.
4 9.7 26.8  15.9  5.0  53  102  South  0 1004.7  1018.0  +13.3 
Overcast in the morning with north to NE breezes. Cloud clearing from midday with mild temperatures in the afternoon before a brief gusty southerly change.
5 12.2 18.6  13.9  7.3  26  163  South  1018.3  1023.9  -5.6 
Few sunny intervals but mostly cloudy, southerly winds turning NE from midday 
6 13.4 21.4  17.1  10.2  30  232  East Nth East  1007.5  1022.3  -14.8 
Mild with variable cloud, north to NE winds, light showers in the evening. Maximum temperature recorded at 11:30pm
7 12.7 28.1  20.8  6.5  40  148  East Nth East  1005.5  1018.5  +13.0 
Mild with variable breezes turning cooler NE later in the afternoon. Second warmest April day I've recorded.
8 12.5 24.2  15.6  2.8  25  52  East Nth East  0.5  2.5  1011.5  1019.0  +7.6 
Morning showers. Mostly cloudy but some sunny intervals around midday. North to NE breezes turning southerly in the evening.
9 11.0 14.9  12.6  8.3  30  183  East Nth East  0.5  0.5  1010.9  1022.5  -11.6 
Cloudy and cool with drizzle late morning. Light southerly winds turning NE from midday. Showers in the evening.
10 9.6  16.9  12.1  6.6  38  125  South  1.0  9.0  1002.3  1011.2  -8.9 
Early showers clearing by dawn. Cloud increasing later in the morning with a southerly change with showers in the afternoon.
11 8.6 15.0  11.2  4.8  32  105  South  0.5  1.5  1003.5  1011.7  -8.2 
Morning showers clearing by dawn, overcast with light southerly breezes in the morning turning NE in the afternoon.
12 6.9 22.1  13.2  5.6  44  125  North Nth West  984.3  1002.9  -18.6 
Variable cloud with sunny intervals, north to NW winds.
13 2.5 11.8  7.8  11.5  44  215  South  1.5  11.0  982.2  998.2  +16.0 
Few spots of rain morning and afternoon, some cloud but mostly sunny with cold southerly wind. Colder with showers with hail in the evening.
14 2.1 10.4  5.9  14.8  57  275  South  0.5  5.0  997.8  1007.6  +9.8 
Showers in the morning with snow on the Port Hills. Sunny periods in the afternoon. Strong cold southerly winds.
15 3.8 13.3  9.5  15.7  59  332  South  1006.8  1020.0  +13.2 
Few clouds but mostly sunny with strong cold southerly winds.
16 2.7 15.9  9.4  3.7  21  75  South  1018.1  1022.3  -4.2 
 Sunny with a few clouds at times, light southerly breezes turning NE from mid afternoon
17 8.5 19.5  13.1  5.8  24  126  East Nth East  1011.2  1018.0  -6.8 
Mostly sunny morning, cloud increasing in the afternoon, NE winds turning southerly early evening with a few spots of rain.
18 9.0 15.7  12.1  6.0  24  116  South 1017.7  1026.0  +8.3 
Light showers or drizzle in the morning clearing and cloud breaking in the afternoon. light southerly breezes turning NE in the evening.
19 11.0 16.3  13.0  9.6  33  219  East Nth East  1018.2  1024.4  -6.2 
Some cloud but mostly sunny with NE winds.
20 7.8 18.7  12.7  6.2  40  115  South  1017.5  1029.0  +11.5 
Partly cloudy with southerly winds from mid morning easing in the afternoon with increasing cloud. A few spots of rain from late afternoon.
21 11.8 14.0  12.6  3.1  25  68  East Nth East  0.5  3.5  1025.0  1029.8  -4.8 
Overcast with light rain at times, NE breezes turning southerly in the evening.
22 11.3 14.0  12.1  3.4  18  73  South  0.5  1.5  1029.5  1033.8  +4.3 
Overcast with drizzle and light rain at times. Light southerly winds turning NE from mid afternoon.
23 11.3 16.0  12.9  8.5  29  193  East Nth East  1029.9  1033.2  -3.3 
Variable cloud with sunny intervals, NE winds
24 11.3 15.8  13.2  9.9  37  226  East Nth East  1021.7  1030.9  -9.2 
Some cloud but mostly sunny with NE winds.
25 10.2 25.1  16.3  4.4  23  99  East Nth East  1011.0  1021.4  -10.4 
Mild with light north to NE winds, cloud increasing in the afternoon.
26 13.5 21.2 17.9  7.1  40  160  East Nth East  998.3  1010.7  -12.4 
Light showers in the morning clearing to a mild and mostly cloudy day. NE winds tending northerly at times.
27 9.8 18.8  13.9  8.1  39  154  South  2.0  22.0  988.2  999.0  -10.8 
Overcast with light showers turning to rain from late afternoon, southerly winds.
28 7.4 13.0  9.3  6.1  38  110  South  1.5  14.5  992.2  1002.9  +10.7 
Morning rain clearing by midday and cloud breaking, variable winds tending southerly.
29 2.4 19.9  9.3  5.9  54  127  East Nth East  0.5 0.5  990.9 1002.9 -12.0
Sunny for much of the day with NE winds turning NW briefly from mid afternoon followed be a strong cool southerly change. Few light showers in the evening.
30 4.8 12.9  9.5  13.5  53  282  South  0 1001.7  1020.5  +18.8 
Mostly sunny with a strong cold southerly wind. Cloud increasing and wind easing later in the afternoon.


April 2015  Temperature Graph
April 2015  Wind Dir Graph
April 2015  Wind Dir % Graph
April 2015  Wind Speed Graph
April 2015  Rainfall Graph
April 2015  Barograph
April 2015  Humidity Graph