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.
| 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 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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? |
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| 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 |
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| 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 |
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