May Summary
Above average temperature and well below average rainfall. The least windy May I've recorded.
(May compared to my records from the past 10 years.)
- May was above my average temperature of 9.5C with 10.5C.
- The warmest temperature was 22.1C, my May record is 25.4C set in 2002
- The coldest temperature was -1.1C, the lowest May temperature I've recorded is -6.2C in 2001.
- Only 1 day recored a temperature of 0C or below, my average is 3.
- No days failed to reach 10C maximum daily temperature.
- Seventeen days reached or exceeded 15C, my average is 12.
- Three days reached or exceeded 20C, my average is 3.
- Wind run was 76% of my average of 3609km with 2735km. This is the least windy May in my records.
- The windiest May was 2009 with 5291km.
- The barometer recorded above average pressure for the month with 1013.6hPa. My average is 1011.0hPa.
- Rainfall was 27% of the average expected total of 74mm with 20mm.
- The wettest May in my records is 2009 with 193mm.
- The driest May I've recorded is 2015 with 12.5mm.
May 2019 Summary Temperature | |
---|---|
Mean | 10.5 C |
Mean Maximum | 16.0 C |
Mean Minimum | 5.6 C |
Maximum High | 22.1 C (9th) |
Maximum Low | 12.2 C (9th) |
Minimum High | 11.1 C (17th) |
Minimum Low | -1.1 C (17th) |
Wind Speed and Direction | |
Maximum Gust | 58 km/h (16th) |
Mean | 3.9 km/h |
Wind Run | 2735 km |
Max Daily Windrun | 261 km (13th) |
Prevailing Direction | East North East |
Barometer | |
Maximum | 1033.0 hPa (6th) |
Minimum | 980.9 hPa (31st) |
Mean | 1013.6 hPa |
Max Daily Change | `+29.7 hPa (13th) |
Rainfall | |
Days with Measured Rainfall (0.2mm or more) |
6 |
Max Daily Rainfall | 6.4 mm (31st) |
Monthly Rainfall | 20.0 mm |
Humidity | |
Maximum | 98 % (Several days) |
Minimum | 44 % (2nd) |
May Daily Observations | ||||||||||||
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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 | 0.4 | 17.1 | 8.5 | 2.6 | 22 | 59 | East Nth East | 0 | 0 | 1025.5 | 1032.0 | -6.5 |
Light frost, clear and sunny with light winds. | ||||||||||||
2 | 4.2 | 19.9 | 11.7 | 2.0 | 19 | 44 | East Nth East | 0 | 0 | 1019.3 | 1025.1 | -5.8 |
Clear and sunny, mild in the afternoon with light breezes tending NE. | ||||||||||||
3 | 9.1 | 16.5 | 12.1 | 2.7 | 17 | 62 | East Nth East | 0 | 0 | 1023.8 | 1025.6 | -1.8 |
Clear and sunny with light breezes tending NE. | ||||||||||||
4 | 8.5 | 19.9 | 12.9 | 6.3 | 32 | 143 | East Nth East | 0 | 0 | 1014.8 | 1024.1 | -9.3 |
Variable high cloud thickening later in the afternoon. NE winds easing and dying away in the afternoon. | ||||||||||||
5 | 7.0 | 19.1 | 11.3 | 1.0 | 15 | 22 | North Nth East | 0 | 0 | 1017.5 | 1013.3 | +12.8 |
Overcast with high cloud, mild in the afternoon with light breezes. | ||||||||||||
6 | 7.3 | 15.6 | 12.3 | 5.8 | 27 | 131 | East Nth East | 0 | 0 | 1029.5 | 1033.0 | +3.5 |
Morning cloud breaking with some sunny intervals in the afternoon, NE wind. | ||||||||||||
7 | 12.1 | 14.1 | 13.0 | 7.9 | 28 | 181 | East Nth East | 0.4 | 1.2 | 1025.5 | 1032.3 | -6.8 |
Overcast with light rain and drizzle clearing in the afternoon but low cloud remaining. | ||||||||||||
8 | 11.2 | 16.1 | 13.3 | 6.2 | 26 | 140 | East Nth East | 0 | 0 | 1017.6 | 1025.5 | -7.9 |
Overcast with NE wind. | ||||||||||||
9 | 12.2 | 22.1 | 15.3 | 4.2 | 20 | 95 | East Nth East | 0.4 | 1.8 | 1011.4 | 1017.6 | -6.2 |
Sunny morning, cloud increasing in the afternoon with light showers in the afternoon and a period of rain in the evening. Mild with light NE winds. | ||||||||||||
10 | 8.3 | 19.6 | 13.1 | 2.2 | 15 | 51 | East Nth East | 0.2 | 0.2 | 1011.5 | 1021.4 | +9.9 |
Showers clearing before dawn, sunny and mild with light winds tending NE. | ||||||||||||
11 | 7.5 | 12.8 | 10.6 | 4.0 | 24 | 91 | East Nth East | 0 | 0 | 1011.7 | 1022.7 | -11.0 |
Morning fog lifting a little but remaining as low cloud for the day. Light NE winds. | ||||||||||||
12 | 8.6 | 17.7 | 12.3 | 4.6 | 36 | 104 | East Nth East | 0.2 | 0.2 | 988.4 | 1011.6 | -23.2 |
Cloud increasing with light showers in the afternoon. A southerly change in the evening with strengthening winds. | ||||||||||||
13 | 3.2 | 13.4 | 9.6 | 11.4 | 56 | 261 | South Sth West | 1.0 | 4.4 | 992.4 | 1022.1 | +29.7 |
Early morning southerly with strong winds and brief rain clearing by dawn. Cloud clearing in the afternoon and cool southerly winds dying away in the evening. | ||||||||||||
14 | 3.3 | 14.7 | 10.2 | 3.5 | 22 | 79 | East Nth East | 0 | 0 | 1004.7 | 1021.4 | -16.7 |
Cloud increasing in the morning, overcast in the afternoon. Light NE winds | ||||||||||||
15 | 3.7 | 18.4 | 10.5 | 4.3 | 44 | 98 | North Nth West | 0 | 0 | 995.1 | 1006.2 | -11.1 |
High nor'west arch cloud clearing in the afternoon with mild northerly winds. Wild weather hits the south with 120kmh wind gusts and heavy rain |
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16 | 3.8 | 15.7 | 7.4 | 7.9 | 58 | 181 | South Sth West | 0.8 | 4.6 | 996.8 | 1013.8 | +17.0 |
Cloud increasing with a cold southerly change from midday with a period of rain. Rain clearing in the evening and wind easing. Snow flurries in Dunedin as temperatures plummet |
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17 | -1.1 | 11.1 | 4.7 | 2.4 | 24 | 54 | South Sth West | 0 | 0 | 1014.3 | 1021.8 | +7.5 |
First frost of the year. Clear and sunny with a cool southerly breeze. Trouble-making jetstream eases but more gales to hit southerners this weekend |
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18 | 1.3 | 14.5 | 7.2 | 1.5 | 18 | 34 | East Nth East | 0 | 0 | 1001.8 | 1017.3 | -15.5 |
Overcast with high nor'west arch cloud for much of the day. Cloud breaking later in the afternoon. Light winds tending NE. | ||||||||||||
19 | 3.6 | 12.9 | 8.1 | 4.8 | 34 | South Sth West | 0 | 0 | 1010.5 | 1012.8 | +12.3 | |
Variable cloud with a southerly wind dying out by late afternoon. Marine heatwaves: Why do they make our seas scorch? |
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20 | 0.5 | 14.5 | 7.4 | 2.3 | 21 | 52 | East Nth East | 0 | 0 | 1010.9 | 1020.4 | +9.5 |
Light frost. Clear and sunny with light winds tending NE. Government report reveals MetService considering new hot weather warnings |
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21 | 5.5 | 13.8 | 10.0 | 3.4 | 18 | 78 | East Nth East | 0 | 0 | 1020.1 | 1022.8 | +2.7 |
Sunny with some thin high cloud, light NE winds. | ||||||||||||
22 | 4.7 | 13.1 | 8.7 | 1.1 | 13 | 25 | North Nth East | 0 | 0 | 1017.7 | 1021.3 | -3.6 |
Overcast with morning fog clearing late morning but remaining cloudy and cool with light breezes. | ||||||||||||
23 | 2.6 | 14.4 | 8.7 | 2.9 | 24 | 65 | East Nth East | 0 | 0 | 1020.4 | 1027.3 | +6.9 |
Fog clearing around midday to a sunny afternoon with light NE winds. | ||||||||||||
24 | 3.8 | 14.3 | 8.8 | 1.5 | 19 | 32 | East Nth East | 0 | 0 | 1020.5 | 1026.6 | -6.1 |
Morning fog clearing by midday to a sunny afternoon with light NE wind. | ||||||||||||
25 | 3.8 | 11.2 | 7.5 | 2.6 | 19 | 59 | East Nth East | 0 | 0 | 1013.2 | 1022.1 | -8.9 |
Fog lifting and clearing around midday to a sunny afternoon with cool NE wind. Flights cancelled, delayed in Christchurch |
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26 | 2.0 | 19.0 | 9.2 | 0.9 | 11 | 21 | East Nth East | 0 | 0 | 1010.4 | 1014.1 | -3.7 |
Clear and sunny, mild by midday. Light breezes tending NE. Warm, dry weather sees parts of the country on track for record or near-record autumn |
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27 | 7.0 | 15.1 | 11.3 | 1.4 | 13 | 32 | East Nth East | 0 | 0 | 1004.1 | 1010.2 | -6.1 |
Overcast and cool with light breezes tending NE. Rain, snow and southerlies due to arrive for start of Queen's Birthday weekend When does winter officially start in New Zealand? |
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28 | 7.6 | 17.0 | 12.7 | 5.2 | 26 | 119 | East Nth East | 0.4 | 1.2 | 981.1 | 1004.1 | -23.0 |
Overcast. Showers from late afternoon, NE wind. | ||||||||||||
29 | 6.3 | 18.3 | 13.0 | 4.3 | 30 | 97 | East Nth East | 0 | 0 | 982.7 | 997.4 | +14.7 |
Sunny and mild from midday with a few clouds. NE winds turning northerly from mid afternoon. | ||||||||||||
30 | 10.3 | 19.9 | 14.8 | 7.1 | 43 | 162 | North Nth East | 0 | 0 | 986.7 | 995.6 | -8.9 |
Variable cloud, a few spots of rain in the evening, mild northerly winds. | ||||||||||||
31 | 4.2 | 13.2 | 8.9 | 1.9 | 25 | 44 | South Sth West | 0.6 | 6.4 | 980.9 | 989.9 | -9.0 |
Variable morning cloud. Overcast in the afternoon with rain from evening. |
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