May Weather Notes;

  • Temperature was just below my May average of 9.2C with 9.0C. There were 8 days where the temperature reached or exceeded 15C,my May average is 10. Two days reached or exceeded 20C which is equal to my May average.
  • Wind run in May was the second lowest I've recorded, the lowest being 3185km in 2003. My May average is 3990km.
  • The barometer was the highest both in highest pressure for the month and average pressure for May.
  • It was very dry with just 14% of the average 92mm expected over 12 days.

May 2012 Summary
Temperature
Mean 9.0 C
Mean Maximum 13.9 C
Mean Minimum 4.6 C
Maximum High 21.1 C (27th)
Maximum Low 11.3 C (27th)
Minimum High 9.8 C (16th)
Minimum Low -2.1 C (20th)
Wind Speed and Direction
Maximum Gust 53 km/h (28th)
Mean 4.8 km/h
Wind Run 3370 km
Max Daily Windrun 280 km (1st)
Prevailing Direction East Nth East
Barometer
Maximum 1037.6 hPa (5th)
Minimum 985.1 hPa (15th)
Mean 1014.6 hPa
Max Daily Change -16.4 hPa (26th)
Rainfall
Days with Measured Rainfall
(Greater than 0.2mm)
9
Max Daily Rainfall 4.0 mm (15th)
Monthly Rainfall 13.0 mm
Humidity
Maximum
100 % (12th)
Minimum 38 % (13th)

May 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 2.4 11.1 7.9 12.6 52 280 South Sth West 0.5 0.5 1015.5 1028.3 +12.8
Broken cloud with a few showers and cold southerly winds.
2 2.4 10.9 6.8 4.7 32 105 South Sth West 0.5 0.5 1028.1 1031.5 +3..4
Early showers clearing and cloud breaking in the afternoon. Cool southerly winds.
3 2.1 14.5 6.9 0.8 18 19 South Sth West 0 0 1029.2 1034.9 +5.7
Clear and sunny with light southerly winds.
4 4.5 17.0 10.5 2.2 19 51 East Nth East 0 0 1033.1 1035.8 +2.6
Cloud clearing in the afternoon with light variable breezes turning NE. Cloud returning in the evening.
5 10.3 12.4 11.2 4.7 21 108 East Nth East 0 0 1035.2 1037.6 +2.4
Overcast with a few spots of drizzle, cool NE winds
6 9.9 12.4 10.7 8.3 34 189 East Nth East 0 0 1027.2 1037.6 -10.4
Cloudy and cool with NE winds, cloud breaking in the afternoon.
7 6.3 15.2 10.9 8.0 31 182 East Nth East 0 0 1013.2 1027.7 -14.5
Morning cloud clearing to a sunny day with NE winds easing during the afternoon.
8 3.7 16.8 10.1 2.1 21 47 East Nth East 0 0 1008.3 1016.5 +8.2
Mostly cloudy with light winds tending NE.
9 6.6 13.3 9.6 2.0 18 44 East Nth East 0 0 1015.2 1018.3 -3.1
Overcast with a cool NE breeze. Some drizzle from late afternoon.
10 7.9 12.8 9.7 1.0 15 22 South Sth West 0.5 1.5 1012.9 1015.4 -2.5
Overcast and cool with light rain and drizzle morning and evening. Light variable breezes.
11 6.4 11.1 8.9 2.5 20 56 East Nth East 0 0 1009.5 1013.3 -3.8
Overcast with some drizzle at times. Light north to NE winds.
12 4.7 12.9 9.4 5.0 22 114 East Nth East 0.5 0.5 1000.6 1009.3 -8.7
Variable cloud with some sunny intervals, cool NE wind.
13 9.6 20.4 13.1 2.3 16 53 East Nth East 0 0 998.3 1001.6 +3.3
Morning cloud clearing to a mild and sunny day with light northerly winds.
14 10.2 16.9 12.9 3.7 25 83 East Nth East 0 0 989.0 1000.0 -11.0
Mostly cloudy but some sunny intervals. Light NE wind turning southerly from late afternoon.
15 6.9 14.6 9.8 2.9 20 65 South Sth West 1.0 4.0 985.1 990.0 -4.9
Early showers. Variable cloud with sunny intervals. Cloud increasing from late afternoon with cooler southerly winds and showers.
16 3.1 9.8 6.7 9.9 49 216 South St hWest 0.5 1.5 989.2 999.7 +10.5
Morning showers clearing, cold southerly winds.
17 2.6 15.5 8.8 2.2 24 48 East Nth East 0 0 998.2 1003.7 -5.5
Some cloud but mostly sunny from midday with light winds.
18 2.3 12.3 7.9 10.5 52 237 South Sth West 0 0 998.8 1010.6 +11.8
Broken cloud and mostly sunny with a cold southerly wind strengthening during the day.
19 4.0 10.3 7.8 11.9 48 267 South Sth West 0 0 1010.4 1015.1 +4.7
Morning cloud breaking and clearing in the afternoon. Cold southerly winds easing and dieing out in the evening.
20 -2.1 11.8 4.6 0.9 14 20 East Nth East 0 0 1011.9 1015.5 +3.6
First frost of the year. Sunny with light breezes. Some high cloud in the afternoon.
21 0.0 14.4 7.0 2.4 15 53 South Sth West 0 0 1015.1 1022.1 +7.0
Variable cloud but mostly sunny with southerly breezes tending NE from mid afternoon.
22 1.4 12.2 7.1 3.7 24 85 East Nth East 0 0 1022.1 1024.8 +2.7
Sunny with light NE winds.
23 4.3 13.6 8.3 3.5 20 81 East Nth East 0 0 1022.4 1025.9 -3.5
Clear and sunny, light NE winds.
24 0.0 14.9 7.0 1.4 15 32 East Nth East 0 0 1013.2 1022.6 -9.4
Some thin high cloud but mostly sunny with light breezes tending NE.
25 6.5 12.9 9.4 5.8 46 132 East Nth East 0 0 1013.0 1025.8 +12.8
Early strong southerly change easing during the morning and turning NE in the afternoon with clearing skies..
26 8.8 13.2 10.9 9.6 34 221 East Nth East 0 0 1008.7 1025.1 -16.4
Overcast with low cloud. Cool NE wind.
27 11.3 21.1 15.9 11.3 44 260 East Nth East 0.5 1.5 992.9 1008.6 -15.7
Morning shower then sunny with mild north to nor'west winds.
28 4.3 16.6 10.5 5.5 53 126 South Sth West 1.0 2.5 997.2 1013.3 +16.1
Sunny with light winds tending NE in the morning. Increasing cloud with a cool southerly change in the afternoon. Colder in the evening with showers.
29 -0.2 10.6 3.9 0.7 15 16 South Sth West 0.5 0.5 1013.6 1019.3 +5.7
Morning frost. mostly clear and sunny with light breezes.
30 -0.2 14.1 6.9 3.5 21 80 East Nth East 0 0 1009.9 1016.4 -6.5
Sunny, cloud increasing from mid afternoon. Light NE winds.
31 2.6 13.8 8.0 2.7 22 62 South Sh West 0 0 1013.8 1026.1 +12.3
Mostly sunny with variable breezes in the morning turning light southerly in the afternoon.

May 2012 Temperature Graph
May 2012 Wind Dir Graph
May 2012 Wind Dir % Graph
May 2012 Wind Speed Graph
May 2012 Rainfall Graph
May 2012 Barograph
May 2012 Humidity Graph