Temperature:
The mean temperature for the month was 6.5C, slightly above my average of 6.4C. The warmest June I've recorded was 2004 with an average temperature of 8.3C, the coldest, 2006 with 4.9C.
The warmest day was the 19th with 16.9C, the minimum was -2.4C on the 14th. My coldest June temperature to date is -6.2C on 1st June 2002
Many June days were overcast and damp. This is reflected in the few frosts recorded and greater number of days where less than 10C was recorded.
There were just 6 days where the temperature was at or below 0, my average is 13. There were 14 days where the maximum temperature for the day was less than 10C, my average is 11. There was just 1 day where the temperature was at or above 15C where my average is 6.
Wind: (Records from 2001)
The monthly wind run of 3750km is 124% of my June average of 3336km making this June the third windiest June I've recorded. The least windy to date was 2006 with 2840km. The windiest June was 2008 with 3917km. The highest gust was 58km/h from the south west on the 7th.
Rainfall:
June had 114.5mm of rain over 17 days, 182% of my 63mm June average, the 3rd wettest June I've recorded. The wettest day was the 7th with 18mm. My wettest June day was 12th June 2006 with 56mm. The wettest June was also 2006 with 118.6mm, the driest, 2004 with 11.6mm.
Barometer: (Records from 2006)
The average pressure for the month was close to my June average of 1013.4 hPa with 1013.1 hPa. Maximum pressure change of -27.2 hPa is above my June average of 22.2 hPa and the highest recorded to date.
NIWA monthly climate summaries can be seen here.
| June 2010 Summary Temperature |
|
|---|---|
| Mean | 6.5 C |
| Mean Maximum | 10.3 C |
| Mean Minimum | 2.7 C |
| Maximum High | 16.9 C (19th) |
| Maximum Low | 10.4 C (19th) |
| Minimum High | 5.8 C (13th) |
| Minimum Low | -2.4 C (14th) |
| Wind Speed and Direction | |
| Maximum Gust | 58 km/h (7th) |
| Mean | 5.5 km/h |
| Wind Run | 3750 km |
| Max Daily Windrun | 431 km (7th) |
| Prevailing Direction | South Sth West |
| Barometer | |
| Maximum | 1037.8 hPa (24th) |
| Minimum | 982.9 hPa (7th) |
| Mean | 1013.1 hPa |
| Max Daily Change | -27.7 hPa (6th) |
| Rainfall | |
| Days with Measured Rainfall (Greater than 0.2mm) |
17 |
| Max Daily Rainfall | 18.0 mm (7th) |
| Monthly Rainfall | 114.5 mm |
| Humidity | |
| Maximum |
100 % (Several Days) |
| Minimum | 46 % (12th) |
| June 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 | 4.7 | 9.6 | 6.7 | 2.4 | 14 | 53 | South Sth West |
0.5 | 2.0 | 1017.1 | 1023.6 | -6.5 |
| Mostly cloudy with occasional drizzle turning to light rain in the evening. Light southerly winds. |
||||||||||||
| 2 | 5.8 | 8.9 | 7.6 | 4.5 | 20 | 101 | South Sth West | 0.5 | 4.0 | 1016.2 | 1019.3 | +3.1 |
| Overcast with light showers and drizzle, southerly winds. | ||||||||||||
| 3 | 1.4 | 11.0 | 7.1 | 3.1 | 16 | 71 | South Sth West | 0 | 0 | 1019.0 | 1026.6 | +7.6 |
| Morning low cloud and some drizzle. Cloud breaking and clearing in the afternoon. Light southerly winds. | ||||||||||||
| 4 | -0.8 | 12.3 | 5.1 | 2.0 | 14 | 44 | East Nth East | 0.5 | 0.5 | 1023.7 | 1027.1 | -3.4 |
| First air frost of the year, the second latest frost in my records and equal with 2007. Clear and sunny with light NE winds. Rain recorded from frost condensation. |
||||||||||||
| 5 | 3.8 | 12.5 | 8.1 | 4.6 | 26 | 105 | East Nth East | 0 | 0 | 1011.5 | 1023.4 | -11.9 |
| Morning low cloud clearing to a bright day, some thin high cloud for much of the day. NE winds light in the afternoon. | ||||||||||||
| 6 | 3.6 | 9.9 | 6.7 | 3.6 | 31 | 82 | East Nth East | 0.5 | 3.0 | 984.1 | 1011.8 | -27.7 |
| Overcast and dull with periods of rain. NE winds turning southerly in the evening | ||||||||||||
| 7 | 5.1 | 7.9 | 6.7 | 19.2 | 58 | 431 | South Sth West | 0.5 | 18.0 | 982.9 | 1001.9 | +19.0 |
| Overcast with periods of rain and strong cold southerly winds. | ||||||||||||
| 8 | 3.0 | 8.1 | 5.0 | 12.5 | 50 | 279 | South Sth West | 1.5 | 13.5 | 1002.2 | 1013.0 | +10.8 |
| Showers, some with hail. Cold southerly winds. | ||||||||||||
| 9 | 0.5 | 9.5 | 4.9 | 2.5 | 20 | 52 | East Nth East | 0.5 | 2.5 | 1009.9 | 1014.4 | -4.5 |
| Some morning cloud. Sunny with light NE winds. | ||||||||||||
| 10 | 1.5 | 12.3 | 7.3 | 5.8 | 29 | 133 | East Nth East | 0 | 0 | 989.7 | 1009.7 | -20.0 |
| Some cloud with sunny intervals, NE wind. | ||||||||||||
| 11 | 3.1 | 11.9 | 7.5 | 4.9 | 36 | 113 | South Sth West | 0 | 0 | 986.4 | 993.8 | +7.4 |
| Variable cloud, cool southerly winds. | ||||||||||||
| 12 | 2.8 | 14.3 | 8.2 | 3.4 | 29 | 78 | North West | 0 | 0 | 991.1 | 996.0 | +4.9 |
| Some cloud but mostly sunny and feeling mild compared to recent days. Light north to NW winds. | ||||||||||||
| 13 | -2.2 | 5.8 | 1.9 | 3.9 | 38 | 86 | South West | 1.0 | 6.5 | 996.2 | 1004.2 | +8.0 |
| Morning showers, some with hail and a cold southerly wind. Clearing in the afternoon with wind easing. Frosty in the evening. | ||||||||||||
| 14 | -2.4 | 11.5 | 4.0 | 7.7 | 54 | 175 | South Sth West | 1.0 | 6.0 | 1000.6 | 1015.1 | +14.5 |
| Morning frost. Variable cloud in the morning. Afternoon showers with a southerly change. Showers with hail in the evening. | ||||||||||||
| 15 | 2.3 | 9.6 | 6.1 | 7.7 | 49 | 176 | South Sth West | 1.0 | 12.5 | 1013.8 | 1023.2 | +9.4 |
| Rain and cold southerly winds clearing during the afternoon. | ||||||||||||
| 16 | -0.8 | 11.8 | 4.3 | 0.9 | 13 | 21 | East Nth East | 0 | 0 | 1023.3 | 1028.8 | +5.5 |
| Morning frost. Sunny with light breezes. | ||||||||||||
| 17 | -0.4 | 10.2 | 5.0 | 4.1 | 24 | 95 | East Nth East | 0 | 0 | 1024.1 | 1028.9 | -4.8 |
| Weak winter sun through some thin high cloud. Cloud increasing in the afternoon. Cool NE wind. | ||||||||||||
| 18 | 3.6 | 12.4 | 9.2 | 6.1 | 25 | 138 | East Nth East | 0.5 | 0.5 | 1014.8 | 1024.0 | -9.2 |
| Mostly cloudy and cool during the day, max temperature recorded at 8pm. 0.5mm of "rain" from condensation. | ||||||||||||
| 19 | 10.4 | 16.9 | 13.4 | 6.0 | 25 | 138 | East Nth East | 0 | 0 | 1011.1 | 1016.0 | +4.9 |
| Mostly overcast with mild north to NE winds. | ||||||||||||
| 20 | 7.7 | 11.8 | 9.8 | 6.6 | 27 | 151 | South Sth West | 0.5 | 2.5 | 997.7 | 1014.7 | -17.0 |
| Overcast with showers morning and evening. Southerly winds turning NE from about mid morning to mid afternoon. | ||||||||||||
| 21 | 0.7 | 10.3 | 6.1 | 3.2 | 44 | 67 | South Sth West | 1.0 | 6.5 | 1003.3 | 1019.5 | +16.2 |
| Morning rain and cold southerly winds clearing in the afternoon. Frosty in the evening. | ||||||||||||
| 22 | -1.4 | 11.0 | 4.7 | 4.7 | 49 | 108 | East Nth East | 0.5 | 0.5 | 1012.7 | 1019.4 | -6.7 |
| Morning frost. Some high cloud but mostly sunny with NE winds. A strong cold southerly change at night. | ||||||||||||
| 23 | 1.6 | 7.8 | 4.9 | 9.1 | 34 | 206 | South Sth West | 1.0 | 9.5 | 1019.8 | 1033.9 | +15.1 |
| Rain and drizzle with cold southerly winds. Reports of snow on some part of the Port Hills in the morning. | ||||||||||||
| 24 | 3.4 | 9.4 | 6.9 | 4.7 | 28 | 106 | South Sth West | 0.5 | 0.5 | 1033.1 | 1037.8 | +4.7 |
| Overcast with some drizzle, cool southerly winds. | ||||||||||||
| 25 | 1.9 | 10.3 | 5.4 | 1.2 | 19 | 27 | South West | 0 | 0 | 1027.9 | 1036.1 | -8.2 |
| Overcast with a little drizzle at times. Light southerly breezes turning easterly in the afternoon. | ||||||||||||
| 26 | 3.6 | 6.9 | 5.6 | 8.4 | 35 | 190 | South Sth West | 0.5 | 12.0 | 1013.9 | 1027.9 | -14.0 |
| Overcast and dull with drizzle turning to rain toward evening. Southerly winds. | ||||||||||||
| 27 | 6.0 | 7.9 | 7.0 | 13.0 | 40 | 296 | South West | 0.5 | 9.0 | 1009.3 | 1013.7 | -4.4 |
| Light rain and drizzle, misty low cloud. Southerly winds easing during the day. | ||||||||||||
| 28 | 5.6 | 9.0 | 7.2 | 3.9 | 18 | 87 | South Sth West | 0.5 | 4.0 | 1006.8 | 1009.5 | -2.7 |
| Light rain and drizzle, cloud breaking in the afternoon for a time. Light southerly winds. | ||||||||||||
| 29 | 6.3 | 10.1 | 7.5 | 2.4 | 13 | 53 | South Sth West | 0 | 0 | 1005.3 | 1007.8 | -2.5 |
| Overcast with morning low cloud and mist. Light southerly breezes. | ||||||||||||
| 30 | 1.2 | 9.4 | 5.4 | 3.1 | 27 | 71 | South Sth West | 0 | 0 | 1007.7 | 1015.3 | +7.6 |
| Morning drizzle clearing and cloud breaking with some sunny intervals. Southerly winds. | ||||||||||||
