October Summary
Near average temperature, windiest October for 10 years, near average rainfall.
(October compared to my records from the past 10 years.)
- This October was near my average temperature of 12.2C with 12.4C.
- The coldest temperature was 1.0C which is close to the expected minimum for October, 0.7C.
- The highest temperature was 25.9C, my average October maximum is 27.7C.
- One day failed to reach or exceed 10C, my average is 1.
- Twenty six days reached or exceeded 15C, my average is 24.
- Ten days reached or exceeded 20C, my average is 12.
- Two days reached or exceeded 25C, may average is 4
- Wind run was 108% of my average of 4938km with 5328km, the windiest October since 2011 with 5631km.
- The 13th was the second windiest October day since 2005 and third windiest day in my records starting in 2001
- The barometer recorded above average pressure for the month with 1012.3hPa. My average is 1010.0hPa.
- Rainfall was 97% of the average expected total of 52mm with 50.4mm.
- The wettest October in the past 10 years is 2016 with 73mm and in all my records, 2006 with 120mm.
| October 2021 Summary Temperature | |
|---|---|
| Mean | 12.4 C |
| Mean Maximum | 18.8 C |
| Mean Minimum | 7.7 C |
| Maximum High | 25.9 C (18th) |
| Maximum Low | 12.0 C (29th) |
| Minimum High | 9.3 C (13th) |
| Minimum Low | 1.0 C (1st) |
| Wind Speed and Direction | |
| Maximum Gust | 59 km/h (13th) |
| Mean | 7.5 km/h |
| Wind Run | 5328 km |
| Max Daily Windrun | 509 km (13th) |
| Prevailing Direction | East North East |
| Barometer | |
| Maximum | 1038.7 hPa (22nd) |
| Minimum | 984.9 hPa (11th) |
| Mean | 1012.3 hPa |
| Max Daily Change | -23.5 hPa (11th) |
| Rainfall | |
| Days with Measured Rainfall (0.2mm or more) |
15 |
| Max Daily Rainfall | 13.2 mm (4th) |
| Monthly Rainfall | 50.4 mm |
| Humidity | |
| Maximum | 97 % |
| Minimum | 29 % (31st) |
| October 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 | 1.0 | 16.7 | 9.7 | 6.9 | 38 | 157 | East Nth East | 0 | 0 | 1018.2 | 1021.5 | +3.3 |
| Sunny with a fresh NE wind in the afternoon | ||||||||||||
| 2 | 4.0 | 19.2 | 10.4 | 5.0 | 23 | 113 | East Nth East | 0 | 0 | 1016.7 | 1021.4 | -4.7 |
| Low cloud and smoke/haze in the morning. Cloud breaking to a sunny and mild afternoon with variable breezes tuning NE. | ||||||||||||
| 3 | 6.1 | 18.6 | 11.8 | 4.8 | 33 | 110 | East Nth East | 0 | 0 | 1011.7 | 1018.7 | -7.0 |
| Mostly cloudy, cooler NE wind in the afternoon. | ||||||||||||
| 4 | 9.6 | 13.2 | 11.0 | 3.9 | 27 | 89 | East Nth East | 0.6 | 13.2 | 1007.7 | 1011.7 | -4.0 |
| Rain easing in the afternoon and turning to drizzle in the evening with variable winds turning NE. | ||||||||||||
| 5 | 10.1 | 14.5 | 11.6 | 12.0 | 39 | 272 | East Nth East | 0.2 | 1.6 | 1008.8 | 1011.6 | -2.8 |
| Low cloud breaking for a time around midday with a few sunny spells. Some drizzle at night. NE wind. | ||||||||||||
| 6 | 10.9 | 13.6 | 12.1 | 10.4 | 38 | 237 | East Nth East | 0.2 | 0.4 | 1005.9 | 1012.0 | -6.1 |
| Overcast with low cloud, light rain in the afternoon. Cool NE wind. | ||||||||||||
| 7 | 11.0 | 24.3 | 15.1 | 6.7 | 30 | 151 | East Nth East | 0.2 | 0.2 | 1001.8 | 1006.2 | -4.4 |
| Morning shower, cloud breaking from midday with mild northerly winds turning NE later in the afternoon. | ||||||||||||
| 8 | 7.0 | 24.1 | 16.3 | 4.3 | 30 | 97 | East Nth East | 0 | 0 | 1000.3 | 1004.1 | -3.8 |
| Mild and sunny with light NE winds turning northerly in the evening. | ||||||||||||
| 9 | 7.9 | 17.8 | 12.1 | 8.3 | 39 | 189 | South Sth West | 0.2 | 1.2 | 1003.0 | 1017.1 | +14.1 |
| Partly cloudy morning, cloud increasing in the afternoon with showers from evening. Southerly wind. | ||||||||||||
| 10 | 5.7 | 19.8 | 11.3 | 5.1 | 24 | 118 | East Nth East | 0.2 | 0.4 | 1008.5 | 1017.0 | -8.5 |
| Early showers clearing before dawn. Sunny with a few clouds. Southerly winds turning NE from mid afternoon. | ||||||||||||
| 11 | 8.3 | 19.7 | 13.5 | 6.1 | 23 | 139 | East Nth East | 0.2 | 0.4 | 984.9 | 1008.4 | -23.5 |
| Overcast with high cloud and light winds tending NE. Evening showers and winds changing to westerly at night. | ||||||||||||
| 12 | 5.5 | 11.6 | 7.7 | 20.2 | 58 | 462 | West | 1.0 | 11.4 | 985.0 | 997.2 | +12.2 |
| Morning rain and strong westerly winds turning southerly. Morning rain clearing in the afternoon with sunny spells. Showers in the evening. This is the third windiest October day since 2001. Why NZ faces 'elevated' ex-tropical cyclone risk |
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| 13 | 5.2 | 9.3 | 7.1 | 22.2 | 59 | 509 | South Sth West | 0.8 | 12.6 | 996.9 | 1017.4 | +20.5 |
| Overcast with rain and showers with a strong cold southerly wind. This is the second windiest October day since 2005 and third windiest day in my records starting in 2001 | ||||||||||||
| 14 | 3.2 | 15.0 | 8.6 | 5.4 | 31 | 124 | South Sth West | 0.4 | 1.0 | 1015.8 | 1018.4 | -2.6 |
| Early showers clearing before dawn. Morning cloud breaking to a mostly sunny afternoon with a southerly wind. | ||||||||||||
| 15 | 2.4 | 16.2 | 9.4 | 4.7 | 26 | 107 | East Nth East | 0 | 0 | 1013.6 | 1017.1 | -3.5 |
| Partly cloudy with NE a wind | ||||||||||||
| 16 | 3.8 | 20.0 | 11.6 | 4.8 | 23 | 108 | East Nth East | 0 | 0 | 1010.3 | 1016.9 | -6.6 |
| Sunny with high cloud, light winds. | ||||||||||||
| 17 | 10.5 | 24.9 | 16.5 | 8.7 | 38 | 200 | East Nth East | 0 | 0 | 995.6 | 1010.1 | -14.5 |
| Variable cloud but mostly sunny, NE wind turning warm Norwest in the afternoon. | ||||||||||||
| 18 | 8.9 | 25.9 | 15.9 | 5.8 | 37 | 132 | East Nth East | 0.4 | 1.8 | 997.0 | 1011.0 | +14.0 |
| Sunny and warm. Cloud increasing with a southerly change with showers later in the afternoon. | ||||||||||||
| 19 | 7.2 | 24.3 | 12.7 | 8.4 | 41 | 195 | South Sth West | 0.2 | 0.2 | 1009.1 | 1027.4 | +18.3 |
| Sunny and mild for much of the day. A southerly change from early afternoon with increasing cloud later and light rain in the evening. | ||||||||||||
| 20 | 2.9 | 16.0 | 9.4 | 3.1 | 20 | 72 | East Nth East | 0 | 0 | 1027.6 | 1033.2 | +5.6 |
| Cloud breaking in the afternoon with light southerly winds turning NE. | ||||||||||||
| 21 | 3.8 | 17.5 | 10.7 | 3.4 | 23 | 77 | East Nth East | 0 | 0 | 1031.9 | 1038.2 | +6.3 |
| Some cloud, mostly sunny with a light NE wind. | ||||||||||||
| 22 | 5.1 | 17.0 | 11.6 | 7.5 | 37 | 171 | East Nth East | 0 | 0 | 1034.7 | 1038.7 | -4.0 |
| Sunny with a cool NE wind freshening in the afternoon. | ||||||||||||
| 23 | 10.0 | 15.5 | 12.3 | 12.8 | 43 | 293 | East Nth East | 0 | 0 | 1019.6 | 1034.6 | -15.0 |
| Morning cloud breaking, sunny intervals in the afternoon a with fresh NE wind. | ||||||||||||
| 24 | 11.0 | 19.3 | 14.6 | 8.9 | 34 | 202 | East Nth East | 0 | 0 | 1006.6 | 1019.5 | -12.9 |
| Cloud breaking to a sunny afternoon with a NE wind | ||||||||||||
| 25 | 11.0 | 22.7 | 15.3 | 5.6 | 28 | 127 | West | 0 | 0 | 1008.0 | 1015.9 | +7.9 |
| Morning low cloud clearing to a sunny afternoon with high cloud increasing toward evening. Mostly light westerly winds. | ||||||||||||
| 26 | 10.9 | 19.2 | 13.3 | 3.7 | 23 | 83 | East Nth East | 0 | 0 | 1015.5 | 1018.2 | -2.7 |
| Overcast with low cloud, some light rain from mid afternoon. Light breezes tending NE. | ||||||||||||
| 27 | 11.8 | 24.5 | 14.5 | 4.3 | 22 | 97 | East Nth East | 0 | 0 | 1015.0 | 1018.2 | +3.2 |
| Low cloud breaking about midday with variable breezes turning NE from mid afternoon. Low cloud returning in the evening. NZ insurers counting cost of another extreme year for weather events |
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| 28 | 11.5 | 16.4 | 13.0 | 5.3 | 28 | 120 | East Nth East | 0 | 0 | 1013.1 | 1018.0 | -4.9 |
| Some morning drizzle, overcast with low cloud and a NE wind | ||||||||||||
| 29 | 12.0 | 19.1 | 13.9 | 6.0 | 31 | 137 | South Sth West | 0.4 | 5.0 | 1006.2 | 1012.9 | -6.7 |
| Morning rain then mostly dry with cloud breaking a little. Variable winds turning southerly from late morning. Cloud increasing later in the afternoon with light rain in the evening. Niwa predicts warmer than usual temperatures for next three months, drier in South Island |
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| 30 | 11.5 | 20.3 | 14.4 | 8.5 | 41 | 193 | East Nth East | 0.2 | 0.2 | 993.2 | 1008.6 | -15.4 |
| Early light rain clearing before dawn. Cloud breaking during the morning but returning later in the afternoon with a freshening NE wind. | ||||||||||||
| 31 | 10.1 | 25.2 | 17.2 | 10.2 | 42 | 233 | North Nth West | 0.2 | 0.4 | 989.9 | 1006.1 | +16.2 |
| Sunny and warm with nor'west winds. Cloud increasing in the afternoon with a southerly change and showers in the evening. Warming water: Is another intense marine heatwave coming? |
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