My April.
Temperature:
The mean temperature for the month was 13.2C, the 2nd warmest April I've recorded and well above my average of 11.5C. The warmest April I've recorded was 2006 with an average temperature of 13.8C.
No daily maximums of 10C or less were recorded. The warmest day was the 1st with 28.5C, a new record maximum for April, the minimum was 1.0C My coldest April temperature to date is -0.8C on 25th April 2001
There were 26 days where the temperature was at or above 15C which equals the 2006 record. My average is 20.
There were 12 days where the temperature was at or above 20C also equaling my current record in 2006, my average is 6. There were 4 days at or over 25C, a new record, previous record was 3 in 2009 and 2006, my average is 1.
Wind: (Records from 2001)
The monthly wind run of 3161km is 80% of my April average of 3956km making this April the second least windy I've recorded. The least windy to date was 2007 with 3039km. The windiest April was 2005 with 4696km. The highest gust was 41km/h from the north north east on the 25th. .
Rainfall:
April had 19.5mm of rain over 4 days, 33% of my 60mm April average. The wettest day was the 24th with 11mm. The wettest April was 2002 with 121.3mm, the driest, 2001 with 4.5mm. This is the third consecutive month with below average rainfall.
Barometer: (Records from 2006)
The average pressure for the month was s little below my April average of 1014.7 hPa with 1013.5 hPa. Maximum pressure change of +17.6 hPa is close to my April average of 18.2 hPa.
The NIWA climate summaries can be seen here.
| April 2010 Summary Temperature |
|
|---|---|
| Mean | 13.2 C |
| Mean Maximum | 19.5 C |
| Mean Minimum | 7.8 C |
| Maximum High | 28.5 C (1st) |
| Maximum Low | 12.5 C (25th) |
| Minimum High | 13.6 C (24th) |
| Minimum Low | 1.0 C (10th) |
| Wind Speed and Direction | |
| Maximum Gust | 41 km/h (25th) |
| Mean | 4.6 km/h |
| Wind Run | 3161 km |
| Max Daily Windrun | 216 km (25th) |
| Prevailing Direction | East Nth East |
| Barometer | |
| Maximum | 1029.9 hPa (7th) |
| Minimum | 992.4 hPa (4th) |
| Mean | 1013.5 hPa |
| Max Daily Change | +17.6 hPa (13th) |
| Rainfall | |
| Days with Measured Rainfall (Greater than 0.2mm) |
4 |
| Max Daily Rainfall | 11.0 mm (24th) |
| Monthly Rainfall | 19.5 mm |
| Humidity | |
| Maximum |
99 % (27th) |
| Minimum | 26 % (12th) |
| April 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 | 9.5 | 28.5 | 16.8 | 3.3 | 27 | 75 | East Nth East | 0 | 0 | 1021.8 | 1026.6 | +3.8 |
| Mostly sunny with some high cloud, warm in the afternoon, light breezes turning coolder southerly in the evening. |
||||||||||||
| 2 | 10.3 | 18.3 | 13.7 | 6.2 | 26 | 140 | East Nth East | 0 | 0 | 1015.4 | 1024.9 | -9.5 |
| Morning cloud clearing to a sunny day with NE wind. | ||||||||||||
| 3 | 6.3 | 26.7 | 16.2 | 2.9 | 24 | 64 | North Nth West | 0 | 0 | 1006.0 | 1015.4 | -9.4 |
| Sunny and warm with light breezes. | ||||||||||||
| 4 | 9.4 | 16.8 | 12.0 | 8.6 | 35 | 204 | South Sth West | 0 | 0 | 1006.2 | 1018.5 | +12.3 |
| Morning drizzle. Some breaks in the clouds in the afternoon. Cool southerly winds turning northerly in the evening. | ||||||||||||
| 5 | 8.2 | 13.8 | 10.7 | 5.2 | 33 | 120 | East Nth East | 0.5 | 0.5 | 1007.5 | 1018.4 | -10.9 |
| Early morning drizzle. Overcast with cool NE winds | ||||||||||||
| 6 | 8.0 | 14.0 | 10.2 | 3.9 | 30 | 88 | South Sth West | 0 | 0 | 1009.0 | 1022.3 | +13.3 |
| Mostly cloudy but a few sunny breaks. Light morning showers and cool southerly winds. | ||||||||||||
| 7 | 3.6 | 15.3 | 9.4 | 2.9 | 25 | 65 | South Sth West | 0 | 0 | 1021.3 | 1029.9 | +8.6 |
| Variable cloud but mostly sunny with cool southerly winds. | ||||||||||||
| 8 | 1.4 | 15.2 | 9.3 | 5.7 | 31 | 130 | East Nth East | 0 | 0 | 1024.3 | 1029.8 | -5.5 |
| Clear and sunny with a cool NE wind. | ||||||||||||
| 9 | 4.7 | 16.8 | 10.4 | 3.0 | 23 | 68 | East Nth East | 0 | 0 | 1021.4 | 1024.8 | -3.4 |
| Sunny with light winds. | ||||||||||||
| 10 | 1.0 | 16.2 | 9.9 | 6.2 | 29 | 141 | East Nth East | 0 | 0 | 1021.2 | 1024.9 | -3.7 |
| Clear andsunny with NE winds. | ||||||||||||
| 11 | 9.9 | 20.3 | 14.3 | 7.1 | 30 | 164 | East Nth East | 0 | 0 | 1014.0 | 1021.6 | -7.6 |
| Clear and sunny with NE winds. | ||||||||||||
| 12 | 8.7 | 26.1 | 16.0 | 1.7 | 21 | 38 | East Nth East | 0 | 0 | 1011.0 | 1016.3 | -5.3 |
| Sunny and warm in the afternoon with winds tending light northerly. | ||||||||||||
| 13 | 8.4 | 19.5 | 14.3 | 4.2 | 34 | 96 | East Nth East | 0 | 0 | 993.1 | 1010.7 | -17.6 |
| Overcast with north to NE winds. | ||||||||||||
| 14 | 10.3 | 21.0 | 14.5 | 3.9 | 32 | 88 | East Nth East | 0 | 0 | 992.4 | 997.7 | +5.3 |
| A few spots of rain before sunrise. A light southerly change in the mornning turning NE from around midday. Variable cloud, overcast at times. | ||||||||||||
| 15 | 9.9 | 24.5 | 16.4 | 6.4 | 36 | 147 | North Nth West | 0 | 0 | 996.0 | 1005.1 | +9.1 |
| Mild with north to NW winds, sunny but some high cloud at times. | ||||||||||||
| 16 | 4.8 | 14.6 | 9.9 | 7.7 | 35 | 176 | South Sth West | 1.0 | 7.5 | 1005.4 | 1019.1 | +13.7 |
| Rain before dawn. A sunny day with cool southerly winds turning NE mid afternoon. | ||||||||||||
| 17 | 4.8 | 22.6 | 11.9 | 1.5 | 24 | 34 | East Nth East | 0 | 0 | 1016.2 | 1023.0 | +6.8 |
| Cloudy and cool in the morning, mild and sunny in the afternoon. Light breezes tending NE later in the afternoon. | ||||||||||||
| 18 | 7.7 | 16.7 | 12.2 | 5.9 | 33 | 135 | East Nth East | 0 | 0 | 1010.3 | 1022.7 | -12.4 |
| Mostly sunny but some cloud from afternoon, cool NE wind. | ||||||||||||
| 19 | 7.0 | 19.2 | 12.8 | 1.5 | 21 | 34 | East Nth East | 0 | 0 | 1008.1 | 1011.6 | +3.5 |
| Sunny morning, becoming overcast in the afternoon. Light variable winds tending NE. | ||||||||||||
| 20 | 6.1 | 21.6 | 12.8 | 2.3 | 24 | 53 | East Nth East | 0 | 0 | 1010.2 | 1013.8 | +3.6 |
| Sunny with light southerly winds turning NE in the afternoon. | ||||||||||||
| 21 | 5.8 | 17.7 | 12.5 | 4.8 | 28 | 109 | East Nth East | 0 | 0 | 1013.0 | 1016.0 | +3.0 |
| Sunny with light NE winds | ||||||||||||
| 22 | 4.5 | 26.1 | 14.6 | 3.1 | 36 | 71 | East Nth East | 0 | 0 | 1011.2 | 1015.1 | -3.9 |
| Sunny and warm in the afternoon with light variable breezes. NE wind freshening for a time in the evening. | ||||||||||||
| 23 | 8.2 | 24.8 | 15.8 | 2.3 | 17 | 52 | East Nth East | 0 | 0 | 1006.3 | 1013.0 | -6.7 |
| Sunny until mid afternoon with warm variable breezes. | ||||||||||||
| 24 | 10.1 | 13.6 | 11.6 | 4.5 | 30 | 102 | East Nth East | 0.5 | 11.0 | 1011.3 | 1018.0 | +6.7 |
| Overcast with light rain from late morning. Southerly winds turning NE in the afternoon. | ||||||||||||
| 25 | 12.5 | 20.8 | 16.6 | 9.4 | 41 | 216 | East Nth East | 0 | 0 | 1007.8 | 1015.4 | -7.6 |
| Overcast with mild north to NE winds. | ||||||||||||
| 26 | 11.5 | 16.4 | 12.9 | 5.8 | 26 | 131 | South West | 0 | 0 | 1012.3 | 1021.9 | +9.6 |
| Overcast with low cloud, cool southerly winds. | ||||||||||||
| 27 | 10.8 | 15.5 | 12.5 | 4.6 | 29 | 104 | East Nth East | 0.5 | 0.5 | 1004.8 | 1021.3 | -16.5 |
| Low cloud and mistly drizzle at times clearing in the afternoon but remaining overcast. | ||||||||||||
| 28 | 11.6 | 19.2 | 15.5 | 7.2 | 39 | 164 | North Nth East | 0 | 0 | 1005.2 | 1012.3 | +7.1 |
| Mostly overcast but some sunny intervals. Miold north to NW winds. | ||||||||||||
| 29 | 9.1 | 18.0 | 13.8 | 2.4 | 25 | 53 | East Nth East | 0 | 0 | 1002.2 | 1021.1 | -9.9 |
| Overcast with high cloud, light breezes. | ||||||||||||
| 30 | 9.1 | 24.7 | 16.2 | 3.8 | 34 | 84 | north Nth East | 0 | 0 | 999.3 | 1007.7 | -8.4 |
| Some high cloud breaking in the afternoon, mild north to NW winds. | ||||||||||||
