April 2010 Print

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.

April 2010 Temperature Graph
April 2010 Wind Dir Graph
April 2010 Wind Dir % Graph
April 2010 Wind Speed Graph
April 2010 Rainfall Graph
April 2010 Barograph
April 2010 Humidity Graph
 

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