A typical July based on the past 10 years of my records (2009 to 2018);

  • An average temperature of 6.3C
    • Maximum temperature expected about 18C.
    • Minimum temperature expected about -3.0C.
    • There are 9 frosts on average, air temperature at or below 0C.
    • Twelve days fail to reach 10C.
    • Four days are expected to reach or exceed 15C
    • No days on average are expected to reach or exceed 20C though the 31st July 2014 is the only July day I've recorded at or above 20C with 21.6C with nor'west winds.
  • Wind run would be around 3200km with the windiest day expected to have a wind run of 300km.
    • Maximum wind gust would be in the region of 55km/h.
  • There would be rain on 12 days with the monthly total of around 60mm.
    • Maximum daily rainfall is expected to be around 18mm

Rain totals for the month and year along with temperature and wind comparisons can be found here.

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                        
 
22                        
 
23                        
 
24                        
 
25                        
 
26                        
 
27                        
 
28                        
 
29                        
 
30                        
 
31