May Summary

Near average temperature, below average wind run and rainfall.

  • May was close to my average temperature of 9.3C with 9.5C. The warmest May I've recorded was 2007 with 11.7C, the coolest May is 2001 and 2009 with 7.5C.
    • The warmest temperature was 21.1C, my May record is 25.4C in 2002
    • The coldest temperature was -1.3C, only 1 day recorded an air temperature at or below 0, my average is 4. The lowest May temperature I've recorded is in 2001 with -6.2C.
    • Two days failed to reach 10C, my average is 3.
    • Fifteen days reached or exceeded 15C, my average is 11.
    • Three days reached or exceeded 20C, equalling my average.
  • Wind run was 81% of my average of 3763km with 3033km. The windiest May I've recorded was 2009 with 5291km.
  • The barometer recorded close to average pressure for the month with 1010.1hPa. My average is 1011.9hPa.
  • Rainfall was 86% of my average expected total of 80mm with 68.5mm.
    • The wettest May was 2009 with 192.8mm, the driest 2015 with 12.5mm
May 2018 Summary
Temperature
Mean 9.5 C
Mean Maximum 14.8 C
Mean Minimum 5.1 C
Maximum High 21.1 C (6th)
Maximum Low 10.8 C (5th)
Minimum High 6.9 C (29th)
Minimum Low -1.3 C (25th)
Wind Speed and Direction
Maximum Gust 54 km/h (27th)
Mean 4.3 km/h
Wind Run 3033 km
Max Daily Windrun 272 km (27th)
Prevailing Direction East North East
Barometer
Maximum 1028.8 hPa (28th and 29th)
Minimum 974.1 hPa (22nd)
Mean 1010.1 hPa
Max Daily Change -23.6 hPa (22nd)
Rainfall
Days with Measured Rainfall
(0.5mm or more)
15
Max Daily Rainfall 10.0 mm (28th)
Monthly Rainfall 68.5 mm
Humidity
Maximum 100 % (Several days)
Minimum 34 % (19th)

 

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 5.5 17.6 10.7 1.1 20 25 South Sth West 0 0 1002.3 1012.9 +10.6
Sunny and mild in the afternoon with light breezes tending southerly.
2 6.1 17.0 10.6 1.0 24 22 East Nth East 0 0 1013.0 1021.4 +8.4
Few clouds but mostly sunny with light winds tending NE.
3 5.7 16.3 10.6 4.3 27 99 East Nth East 0 0 1021.1 1025.7 +4.6
Some cloud but mostly sunny, cool NE wind.
4 10.4 15.9 12.6 9.4 34 214 East Nth East 0 0 1023.3 1026.4 -3.1
mostly cloudy with some sunny intervals, cool NE wind.
5 10.8 17.5 14.0 6.1 31 139 East Nth East 0 0 1009.0 1023.4 -14.4
Variable cloud with a NE wind, cool at times.
6 7.3 21.1 13.6 3.7 36 85 North Nth East 0 0 1004.7 1011.9 -7.2
Some high cloud in the afternoon but mostly sunny and mild with northerly winds from late morning.
7 6.0 20.8 12.4 1.8 24 41 East Nth East 0 0 1009.4 1014.1 +4.7
Mild from late morning, high cloud increasing to overcast in the afternoon. Light winds tending NE.
8 6.6 18.6 12.8 3.1 34 70 East Nth East 0 0 1009.6 1014.7 -5.1
Mostly cloudy with mild northerly winds from midday.
9 5.4 19.1 12.7 5.0 35 114 East Nth East 0 0 1012.1 1025.5 +13.4
Sunny with a few high clouds, NE winds freshening in the evening.
10 7.6 20.7 12.6 3.2 24 73 East Nth East 0 0 1019.2 1023.9 -4.7
Variable cloud but mostly sunny from late morning. Variable winds turning NE in the afternoon.
11 7.1 17.7 12.9 5.8 34 131 East Nth East 0 0 1000.1 1019.6 -19.5
Variable cloud, NE wind.
12 9.4 14.5 11.4 7.4 32 170 South Sth West 0.5 1.0 1004.9 1025.4 +20.5
Early light rain and drizzle clearing and a few sunny intervals around midday. Cloud increasing in the afternoon with a change to NE winds in the evening.
13 8.7 12.4 10.0 4.9 23 112 East Nth East 0.5 6.0 1017.5 1025.0 -7.5
Overcast and cool with NE winds turning southerly with drizzle from mid afternoon. 
14 8.3 13.7 10.1 1.9 16 43 East Nth East 0.5 1.0 1020.4 1023.3 +2.7
Early drizzle and mist clearing to a dry but cool day with light winds tending NE.
15 9.6 12.6 10.7 1.2 15 27 West 0.5 9.0 1004.4 1021.9 -17.5
Overcast and misty with light rain and drizzle. Light breezes tending westerly.
16 6.1 10.3 8.7 3.9 45 90 West 0.5 5.5 996.5 1004.4 -7.9
Overcast with morning fog. A period of rain in the afternoon and later in the evening. Westerly breezes turning southerly in the afternoon.
17 4.3 13.1 8.1 3.5 29 79 East Nth East 0.5 2.5 1000.0 1005.6 -5.6
Showers clearing before dawn with cloud breaking and clearing to a sunny day with cool NE winds from afternoon.
18 2.7 18.8 9.3 1.6 21 36 North Nth West 0 0 1000.9 1005.5 +4.6
Sunny and mild in the afternoon with northerly breezes.
19 3.7 19.8 10.1 2.3 24 54 North Nth West 0 0 997.1 1003.6 -6.5
Sunny with some high cloud, winds turning mild northerly from late morning.
20 3.0 18.1 9.5 5.0 37 114 North Nth East 0.5 2.0 984.1 1001.4 -17.3
Mostly cloudy with mile northerly winds from early afternoon.
21 3.8 13.8 9.3 4.4 30 99 South Sth West 0 0 986.9 999.4 +12.5
Few clouds but mostly sunny with light southerly winds turning NE in the afternoon.
22 2.8 16.1 9.5 7.2 47 164 East Nth East 0 0 974.1 997.7 -23.6
Cloudy with with north to NE winds tending southerly in the evening.
23 0.6 11.9 5.8 2.9 32 65 South Sth West 1.5 6.5 977.1 997.4 +20.3
Early showers clearing by dawn then sunny but cool. Afternoon shower with hail.
24 0.1 13.7 6.6 5.2 44 119 North Nth West 0.5 0.5 983.7 997.1 -13.4
Variable cloud, NE winds turning northerly from late morning. 
25 -1.3 10.8 4.5 5.9 37 134 West 1.5 7.0 986.8 1008.4 +21.6
Morning frost, sunny till midday, showers from midday with west to SW winds.
26 2.7 10.1 6.8 4.3 31 98 East Nth East 1.0 6.5 1000.5 1011.6 -11.1
Showers clearing by dawn, variable cloud with cool NE wind.
27 2.7 10.5 6.4 11.8 54 272 South Sth West 1.0 9.0 1004.2 1016.2 +12.0
Cold southerly wind from late morning with showers from afternoon, some with hail.
28 3.3 7.4 4.9 11.1 53 254 South Sth West 0.5 10.0 1015.9 1028.0 +12.1
Showers with cold southerly winds.
29 3.3 6.9 4.9 1.3 15 30 South Sth West 0.5 1.0 1025.2 1028.0 -2.8
Cloudy and cold with light breezes.
30 1.1 10.5 5.6 1.2 14 28 South Sth West 0 0 1022.7 1026.6 -3.9
Sunny morning, cloud increasing in the afternoon, light southerly breezes.
31 3.7 10.4 6.5 0.7 10 15 West Nth West 0 0 1022.9 1025.8 +2.9
Mostly cloudy but a few sunny intervals. Light breezes.


May 2018  Temperature Graph
May 2018 Wind Dir Graph
May 2018 Wind Dir Graph
May 2018 Wind Speed Graph
May 2018 Rainfall Graph
May 2018 Barograph
May 2018 Humidity Graph