July Summary

Warmest July in my records, above average rainfall.

(July compared to my records from the past 10 years.)

  • This July was the warmest I've recorded with an average temperature of 8.0C, my July 10 year average is 6.5C
    • The warmest temperature was 19.4C, my July record is 21.6C set in 2014
    • The coldest temperature was -3.3C, the lowest July temperature I've recorded is -3.6C in 2015.
    • Five days recorded a temperature of 0C or below, my average is 9.
    • Six days failed to reach 10C maximum daily temperature, my average is 12.
    • Three days reached or exceeded 15C, my average is 4.
  • Wind run was 106% of my average of 3197km with 3359km.
    • The windiest July was 2008 with 4727km.
  • The barometer recorded below average pressure for the month with 1008.9hPa. My average is 1012.6hPa.
  • Rainfall was 126% of the average expected total of 57mm with 72.4mm.
    • The wettest July in my records is 2008 with 195mm.
    • The driest July I've recorded is 2016 with 32.5mm in 2011 and 2018.
July 2019 Summary
Temperature
Mean 8.0 C
Mean Maximum 12.4 C
Mean Minimum 4.0 C
Maximum High 19.4C (3rd)
Maximum Low 8.6 C (21st)
Minimum High 7.4 C (5th)
Minimum Low -1.7 C (7th)
Wind Speed and Direction
Maximum Gust 53 km/h (31st)
Mean 4.7 km/h
Wind Run 3359 km
Max Daily Windrun 351 km (31st)
Prevailing Direction East North East
Barometer
Maximum 1031.3 hPa (6th)
Minimum 978.7 hPa (14th)
Mean 1008.9 hPa
Max Daily Change `-23.6 hPa (7th)
Rainfall
Days with Measured Rainfall
(0.2mm or more)
11
Max Daily Rainfall 18.6 mm (20th)
Monthly Rainfall 72.4 mm
Humidity
Maximum 99 % (Several days)
Minimum 43 % (30th)

 

July 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 5.0 10.8 8.0 3.4 24 76 East Nth East 0 0 1022.5 1027.6 +5.1
Overcast with high cloud. NE wind dying away in the morning.
'Not the coldest of winters': get ready, spring-like warm spells are on the way
2 3.3 13.6 9.8 4.5 23 103 East Nth East 0 0 1019.2 1028.2 -9.0
Mostly cloudy, light NE winds.
Long, dry spell pleases South Canterbury farmers
3 8.0 19.4 13.9 6.3 28 142 East Nth East 0 0 1010.8 1018.9 -8.1
Morning cloud clearing to a sunny and mild afternoon with light northerly winds.
Near-record temperatures in Canterbury 'significantly' above July average
No end in sight for Auckland water shortage after record low rainfall
4 3.4 13.0 8.2 6.3 29 143 South Sth West 0.8 0.8 1016.0 1028.9 +12.9
Maximum temperature recorded at 00:10. Southerly winds from midday with increasing cloud and showers later in the afternoon.
Driest June on record for Waimate, Oamaru
5 4.6 7.4 6.2 11.3 38 258 South West 1.4 9.8 1023.5 1029.0 -5.5
Showers with cold southerly winds.
6 0.4 10.5 6.2 6.3 35 143 South Sth West 0.4 3.0 1024.8 1031.3 +6.5
Morning showers with southerly winds. Cloud and shower clearing during the afternoon.
7 -1.7 12.0 3.6 1.3 14 29 East Nth East 0.2 0.2 1004.5 1028.1 -23.6
Morning frost, sunny with some cloud in the afternoon, light winds.
8 -1.0 9.8 4.1 2.4 27 54 South Sth West 0 0 1004.5 1010.7 +6.2
Morning frost, cloud increasing during the day, light southerly winds.
9 1.9 14.6 7.7 2.9 18 66 East Nth East 0 0 1002.4 1007.9 +5.5
Some high cloud but mostly sunny and feeling mild in the afternoon. Light breezes tending NE from late afternoon.
10 6.1 14.1 9.4 4.8 21 110 East Nth East 0 0 1002.6 1008.0 -5.4
Cloudy and cool in the morning. Cloud breaking in the afternoon, light NE winds.
11 5,6 14.8 9.6 3.0 24 68 East Nth East 0 0 1004.2 1012.6 +8.4
Variable cloud, clearing in the afternoon, light variable winds tending southerly during the day then turning NE in the evening
12 5.5 11.7 8.8 5.6 25 127 East Nth East 0 0 998.2 1011.0 -12.8
Cloudy and cool with light NE wind dying away in the evening. Maximum temperature recorded at 5:40pm.
13 1.3 16.4 9.3 4.5 34 103 East Nth East 0 0 992.0 1005.8 -13.8
Light frost, sunny morning, cloud increasing in the afternoon, wind picking up in the evening.
14 4.4 13.6 10.2 4.6 34 106 East Nth East 1.0 3.8 978.7 991.9 -13.2
Early rain clearing by dawn then a few morning showers. Cloud breaking in the afternoon. Light NE winds with a southerly change in the evening. Maximum temperature recorded at 3:40am.
15 0.0 10.8 6.5 4.8 26 109 East Nth East 0 0 985.0 996.5 -11.5
Mostly sunny morning, cloud increasing in the afternoon. Light cool NE wind.
16 4.2 13.1 7.4 1.8 19 40 East Nth East 0 0 979.3 984.5 -5.2
Mostly cloudy but sunny intervals in the afternoon. Variable winds tending NE during the day,
17 -0.3 8.8 5.0 4.7 30 107 West 0.6 3.6 981.3 994.1 +12.8
Morning cloud with some sunny intervals later in the morning. Cloud increasing in the afternoon with a period of rain. Cold variable winds tending westerly.
18 -1.0 12.9 6.1 2.9 18 65 East Nth East 0 0 993.9 1000.2 +6.3
Morning frost then sunny but cloud increasing in the afternoon. Light NE winds
19 7.2 9.5 8.3 5.8 24 132 East Nth East 0.6 14.6 997.4 999.6 -2.2
Overcast and dull with rain from mid morning. Light NE winds turning southerly by midday.
20 7.1 9.4 8.0 8.4 28 191 South West 0.8 18.6 997.4 1000.9 +3.5
Overcast with low cloud, rain or drizzle for much of the day. South to SW winds.
21 8.6 12.9 10.0 5.9 34 135 South Sth West 0.2 1.4 999.7 1013.8 +14.1
Overcast with light showers in the morning. Cloud breaking from midday with sunny intervals. Southerly winds dying away in the afternoon.
22 5.5 10.9 8.5 2.8 24 64 East Nth East 0 0 1013.6 1018.6 +5.0
Morning fog then overcast with a cool NE wind.
23 7.3 11.4 9.0 2.5 17 57 South Sth West 0.2 1.4 1018.6 1021.8 +3.2
Overcast with showers from later in the afternoon.
24 8.3 12.2 9.3 3.1 22 70 East Nth East 0.2 1.6 1026.7 1021.0 -4.3
Morning low cloud and mist with light showers. Cloud breaking from midday with sunny intervals in the afternoon.
A mild end to July but will winter return in August?
25 5.8 11.5 8.6 4.5 23 102 Easy Nth East 0 0 1016.3 1021.8 +5.5
Morning mist and low cloud breaking with sunny intervals in the afternoon. Cool NE wind.
26 3.9 10.1 6.7 3.9 23 89 East Nth East 0 0 1021.5 1024.4 +2.9
Morning fog clearing late morning to a mostly sunny afternoon, cool NE wind.
Skifields reliant on man-made snow
Early morning fog disrupts Christchurch travellers
27 3.9 14.6 7.7 2.1 18 47 East Nth East 0 0 1021.2 1024.9 +3.7
Morning fog lifting and clearing about 11am. Variable light breezes tending NE morning and evening.
28 2.4 14.4 6.9 1.4 16 31 East Nth East 0 0 1018.2 1024.3 -6.1
Overcast morning, cloud breaking in the afternoon with some sunny spells, light NE breezes 
29 4.7 14.8 9.3 3.9 21 88 East Nth East 0 0 1002.6 1018.0 -15.4
Variable high cloud with sunny intervals and light NE winds.
30 6.7 16.5 11.0 6.1 25 138 East Nth East 0 0 990.3 1002.2 -11.9
Morning cloud breaking to a mild afternoon with mostly light NE winds.
31 4.3 8.4 6.4 15.3 53 351 South Sth West 1.6 13.0 991.3 1002.2 +10.9
Cold with early rain then showers, some with hail. Southerly winds. Maximum temperature recorded at 2:00 am.
'First big dump' of snow hits the South Island, closing highways, skifields


July 2019  Temperature Graph
July 2019 Wind Dir Graph
July 2019 Wind Dir Graph
July 2019 Wind Speed Graph
July 2019 Rainfall Graph
July 2019 Barograph
July 2019 Humidity Graph