September summary
Above average temperature, 48% of expected rainfall, 87% of average wind run.
(September compared to my records from the past 10 years.)
- September was above my average temperature of 9.9C with 10.3C.
- The coldest temperature was -3.0C, my average September minimum is -1.1C.
- The highest temperature was 24.1C, my average September maximum is 24.5C.
- Three air frosts (air temperature at or below 0) were recorded, my average is 3.
- Two days failed to reach 10C, my average is 1.
- Eighteen days reached or exceeded 15C, my average is 16.
- Seven days reached or exceeded 20C, my average is 5.
- Wind run was 87% of my average of 4518km with 3929km.
- The barometer recorded well above average pressure for the month with 1018.1hPa. My average is 1010.4hPa.
- Rainfall was 48% of the average expected total of 41.4mm with 20.0mm, making this September the driest in the past 10 years.
- The wettest September on the past 10 years is 2014 with 70.5mm
| September 2022 Summary Temperature | |
|---|---|
| Mean | 10.3 C |
| Mean Maximum | 16.6 C |
| Mean Minimum | 5.3 C |
| Maximum High | 24.1 C (29h) |
| Maximum Low | 9.5 C (19th) |
| Minimum High | 10.6 C (6th) |
| Minimum Low | -3.0 C (7th) |
| Wind Speed and Direction | |
| Maximum Gust | 48 km/h (26th) |
| Mean | 5.7 km/h |
| Wind Run | 3929 km |
| Max Daily Windrun | 349 km (26th) |
| Prevailing Direction | East North East |
| Barometer | |
| Maximum | 1035.2 hPa (9th) |
| Minimum | 988.9 hPa (12th) |
| Mean | 1018.1 hPa |
| Max Daily Change | -22.1 hPa (11th) |
| Rainfall | |
| Days with Measured Rainfall (0.2mm or more) |
8 |
| Max Daily Rainfall | 11.2 mm (13th) |
| Monthly Rainfall | 20.0 mm |
| Humidity | |
| Maximum | 100 % |
| Minimum | 32 % (4th) |
| September 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 | 6.4 | 23.0 | 13.8 | 1.8 | 19 | 41 | East Nth East | 0 | 0 | 1023.0 | 1026.5 | -3.5 |
| Mild and sunny with increasing high cloud and light breezes Why your spring is likely to be warmer - and sunnier Christchurch surpasses 21C on first day of spring, narrowly missing record |
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| 2 | 8.4 | 18.2 | 13.3 | 2.1 | 33 | 47 | East Nth East | 0 | 0 | 1008.9 | 1023.1 | -14.2 |
| Overcast with light winds. New Zealand just had its warmest, wettest winter on record |
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| 3 | 6.7 | 21.8 | 13.1 | 5.7 | 36 | 131 | West Nth West | 0 | 0 | 1001.6 | 1008.7 | -7.1 |
| Partly cloudy with mild north to nor 'west winds. | ||||||||||||
| 4 | 3.2 | 19.0 | 10.7 | 6.8 | 36 | 155 | East Nth East | 0 | 0 | 994.5 | 1006.5 | -12.0 |
| Sunny and mild with nor 'west winds from late morning. Cooler southerly change in the evening. How a massive weather data project could help predict tornado activity |
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| 5 | 2.2 | 14.6 | 6.9 | 8.4 | 39 | 193 | South Sth West | 0.2 | 0.4 | 1001.5 | 1008.0 | +6.5 |
| Cloudy with a cold southerly change around midday and occasional light showers. | ||||||||||||
| 6 | -0.4 | 10.6 | 4.0 | 4.8 | 29 | 110 | South Sth West | 0.2 | 2.8 | 1008.2 | 1014.7 | +6.5 |
| Light snow showers early morning. Cloud clearing to a sunny but cold day with a southerly wind. Short and sweet: Christchurch's first snow dump in nearly a decade done and dusted |
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| 7 | -3.0 | 16.7 | 6.9 | 1.5 | 18 | 34 | East Nth East | 0 | 0 | 1014.0 | 1023.7 | +9.7 |
| Morning frost, sunny with light breezes, cloud increasing later in the day. Christchurch wakes to -4.5C as cold snap settles in across the country |
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| 8 | 6.0 | 15.2 | 9.2 | 2.9 | 20 | 65 | East Nth East | 0 | 0 | 1023.9 | 1032.5 | +8.6 |
| 9 | 1.8 | 14.7 | 8.5 | 4.3 | 28 | 98 | East Nth East | 0 | 0 | 1032.2 | 1035.2 | +3.0 |
| Morning fog lifting to a sunny day with a cool NE wind. | ||||||||||||
| 10 | 6.1 | 13.9 | 10.2 | 7.1 | 33 | 162 | East Nth East | 0 | 0 | 1027.1 | 1033.5 | -6.4 |
| Morning fog lifting and clearing to a partly cloudy day with a cool NE wind | ||||||||||||
| 11 | 9.2 | 14.1 | 10.9 | 8.3 | 35 | 190 | East Nth East | 0.2 | 0.6 | 1005.7 | 1026.8 | -21.1 |
| Cloudy with a few sunny intervals, light showers earlier in the morning and from mid afternoon. | ||||||||||||
| 12 | 8.5 | 18.0 | 11.3 | 2.6 | 20 | 59 | East Nth East | 0 | 0 | 988.9 | 1005.3 | -16.4 |
| Morning mist, cloudy with light winds tending NE. | ||||||||||||
| 13 | 3.8 | 16.5 | 9.9 | 7.4 | 44 | 169 | North Nth West | 1.4 | 11.2 | 991.9 | 1011.1 | +19.2 |
| A mostly sunny day with nor 'west winds changing southerly at night with a period of rain. | ||||||||||||
| 14 | 1.9 | 11.7 | 6.0 | 5.6 | 44 | 127 | South Sth West | 0.8 | 3.0 | 1011.9 | 1024.2 | +12.3 |
| Any showers clearing before dawn, cloud breaking to a sunny day with a cool southerly wind dying out in the evening. | ||||||||||||
| 15 | 0.0 | 15.6 | 7.4 | 3.1 | 21 | 88 | East Nth East | 0 | 0 | 1007.0 | 1020.1 | -13.1 |
| Morning frost, clear and sunny with light NE wind. | ||||||||||||
| 16 | 1.9 | 11.6 | 7.7 | 5.8 | 29 | 132 | South Sth West | 0 | 0 | 1009.7 | 1022.4 | +12.7 |
| Some light showers in the morning. Mostly cloudy with some sunny intervals, southerly wind. | ||||||||||||
| 17 | 3.1 | 16.7 | 9.6 | 3.1 | 21 | 89 | East Nth East | 0 | 0 | 1020.1 | 1026.9 | +5.2 |
| Sunny with increasing cloud in the afternoon, NE wind. | ||||||||||||
| 18 | 5.4 | 14.8 | 10.2 | 8.6 | 37 | 197 | East Nth East | 0 | 0 | 1016.9 | 1026.4 | -9.4 |
| Mostly cloudy with some sunny intervals, fresh NE wind. | ||||||||||||
| 19 | 9.5 | 20.9 | 13.9 | 5.8 | 27 | 132 | East Nth East | 0 | 0 | 1008.9 | 1016.5 | -7.6 |
| Light morning shower. Some cloud but a mostly sunny and mild afternoon with a NE wind dying out in the evening | ||||||||||||
| 20 | 7.3 | 22.7 | 13.4 | 3.3 | 26 | 75 | East Nth East | 0 | 0 | 1009.7 | 1015.1 | +5.4 |
| Some morning cloud breaking to a sunny afternoon with light winds. | ||||||||||||
| 21 | 8.6 | 15.5 | 10.7 | 8.9 | 28 | 202 | South Sth West | 0 | 0 | 1015.3 | 1027.6 | +12.3 |
| Mostly cloudy but some sunny intervals in the afternoon, cool southerly wind. | ||||||||||||
| 22 | 2.7 | 16.1 | 9.5 | 4.6 | 25 | 105 | East Nth East | 0 | 0 | 1027.0 | 1033.0 | +6.0 |
| Sunny with a few clouds, NE wind. | ||||||||||||
| 23 | 6.6 | 13.6 | 9.9 | 7.4 | 28 | 169 | East Nth East | 0 | 0 | 1019.8 | 1032.8 | -12.6 |
| Morning cloud breaking to a sunny day with a cool NE wind. | ||||||||||||
| 24 | 8.1 | 13.9 | 10.3 | 7.4 | 34 | 181 | South Sth West | 0 | 0 | 1014.9 | 1023.1 | +8.2 |
| Overcast with drizzle in the afternoon. Southerly wind. | ||||||||||||
| 25 | 8.1 | 15.7 | 10.5 | 6.3 | 35 | 137 | East Nth East | 0 | 0 | 1023.2 | 1031.0 | +7.8 |
| Overcast with a NE picking up in the afternoon. | ||||||||||||
| 26 | 9.3 | 13.0 | 10.9 | 15.3 | 48 | 349 | East Nth East | 0 | 0 | 1026.6 | 1030.8 | -4.2 |
| Overcast with a fresh cool NE wind. Sunny intervals later in the day. | ||||||||||||
| 27 | 9.2 | 20.3 | 13.8 | 5.4 | 27 | 122 | East Nth East | 0 | 0 | 1024.2 | 1027.0 | -2.8 |
| Some high cloud but mostly sunny and mild with a NE wind. | ||||||||||||
| 28 | 8.9 | 22.2 | 13.5 | 4.8 | 30 | 109 | East Nth East | 0.2 | 0.6 | 1013.2 | 1024.7 | -11.5 |
| Mostly cloudy with a period of rain in the afternoon. Variable breezes changing NE in the afternoon | ||||||||||||
| 29 | 8.8 | 24.1 | 15.1 | 6.5 | 44 | 148 | East Nth East | 0.2 | 0.6 | 1009.0 | 1020.6 | +11.6 |
| Cloudy morning, sunny spells in the afternoon. A southerly change from mid afternoon with showers in the evening. | ||||||||||||
| 30 | 2.0 | 12.2 | 7.9 | 4.4 | 26 | 98 | South Sth West | 0.2 | 0.4 | 1020.7 | 1029.6 | +8.9 |
| Early showers clearing but remaining cold with a light southerly. Cloud breaking later in the afternoon. Weather forecast: What's in store for the rest of 2022 |
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