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
TemperatureWindRainfallBarometer
DateMinMaxMeanMean
(Km/h)
Gust
(Km/h)
Run (km)Prevailing Dir10 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
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
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
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?
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
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
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
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?
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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May 2019  Temperature Graph
May 2019 Wind Dir Graph
May 2019 Wind Dir Graph
May 2019 Wind Speed Graph
May 2019 Rainfall Graph
May 2019 Barograph
May 2019 Humidity Graph