January Summary
Well above average temperature, above average rainfall.
- January was well above my average temperature of 16.8C with 19.2C, the warmest January was 2018 with 19.5C, the coldest was 2001 with 13.3C.
- The warmest temperature was 34.7C, my January record is 37.2C set in 2009
- The coldest temperature was 6.1C, the lowest January temperature I've recorded is 3.5C in 2003.
- Twenty nine days reached or exceeded 20C, my average is 22, a new January record.
- Eighteen days reached or exceeded 25C, my average is 10.
- Eleven days reached or exceeded 30C. my average is 3. This is a new January record which exceeds last years record January which had 9 days at or over 30C.
- Wind run was 96% of my average of 5626km with 5422km.
- The windiest January was 2017 with 6451km.
- The southerly gust of 76km/h recorded on the 23rd was a new wind speed record for January.
- The barometer recorded near average pressure for the month with 1009.4hPa. My average is 1010.3hPa.
- Rainfall was 136% of the average expected total of 43mm with 58.2mm.
- The wettest January in my records was 2018 with 104mm.
- The driest January I've recorded is 2015 with 12mm.
January 2019 Summary Temperature | |
---|---|
Mean | 19.2 C |
Mean Maximum | 26.8 C |
Mean Minimum | 13.6 C |
Maximum High | 34.7 C (23rd) |
Maximum Low | 18.1 C (31st) |
Minimum High | 18.0 C (14th) |
Minimum Low | 6.1 C (24th) |
Wind Speed and Direction | |
Maximum Gust | 76 km/h (23rd) |
Mean | 7.6 km/h |
Wind Run | 5422 km |
Max Daily Windrun | 307 km (14th) |
Prevailing Direction | East North East |
Barometer | |
Maximum | 1028.6 hPa (12th) |
Minimum | 985.9 hPa (23rd) |
Mean | 1009.4 hPa |
Max Daily Change | -22.3 hPa (13th) |
Rainfall | |
Days with Measured Rainfall (0.2mm or more) |
8 |
Max Daily Rainfall | 33.6 mm (14th) |
Monthly Rainfall | 58.2 mm |
Humidity | |
Maximum | 100 % (14th) |
Minimum | 22 % (20th) |
January Daily Observations | ||||||||||||
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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 | 15.3 | 25.3 | 18.6 | 5.3 | 27 | 121 | East Nth East | 0.8 | 1.8 | 1005.3 | 1016.2 | -10.9 |
Early showers and morning drizzle clearing by midday with sunny intervals in the afternoon. | ||||||||||||
2 | 14.6 | 34.1 | 24.8 | 6.3 | 38 | 145 | North Nth West | 0 | 0 | 999.0 | 1005.3 | -6.3 |
Variable high cloud but mostly sunny and very warm in the afternoon. North to NW winds. | ||||||||||||
3 | 13.1 | 33.9 | 20.9 | 5.4 | 40 | 123 | East Nth East | 0 | 0 | 999.3 | 1008.1 | +8.8 |
Sunny and very warm until a cooling southerly change in the afternoon arrived with increasing cloud. A few spots of drizzle in the evening. | ||||||||||||
4 | 12.8 | 28.1 | 18.5 | 7.1 | 34 | 162 | East Nth East | 0 | 0 | 1007.1 | 1017.6 | +10.5 |
Light variable winds in the morning turning cooler NE in the afternoon, some cloud but mostly sunny. | ||||||||||||
5 | 15.3 | 28.3 | 21.8 | 9.7 | 37 | 222 | East Nth East | 0 | 0 | 1003.8 | 1017.1 | -13.3 |
Sunny and very warm with nor'east winds turning nor'west in the evening with increasing high cloud. | ||||||||||||
6 | 14.0 | 27.6 | 20.8 | 10.3 | 39 | 233 | West | 0.8 | 3.0 | 1001.6 | 1010.2 | +8.6 |
Warm morning, maximum temperature recorded at 8am. A cooler southerly change arriving just after 8am with cloud increasing in the afternoon and a period of rain in the evening. Near record warm overnight temperature recorded according to this Stuff article Canterbury sweats through one of its hottest nights on record. | ||||||||||||
7 | 13.4 | 21.8 | 17.2 | 8.7 | 33 | 198 | East Nth East | 0.4 | 2.8 | 1010.4 | 1014.7 | +4.3 |
Morning drizzle clearing by midday to a sunny afternoon with NE winds. | ||||||||||||
8 | 12.5 | 26.6 | 18.2 | 7.6 | 36 | 173 | East Nth East | 0 | 0 | 1013.8 | 1021.9 | +8.1 |
Cloud breaking to s mostly sunny afternoon. Warm with southerly winds turning NE from mid afternoon. | ||||||||||||
9 | 16.0 | 29.6 | 20.8 | 12.3 | 41 | 282 | East Nth East | 0 | 0 | 1005.5 | 1021.5 | -16.0 |
Hazy with variable cloud and a fresh NE wind easing in the afternoon and turning warm nor'west. | ||||||||||||
10 | 15.3 | 33.5 | 22.1 | 7.3 | 34 | 168 | South Sth West | 0.2 | 0.2 | 1003.6 | 1009.0 | +5.4 |
Morning showers clearing to a sunny and very warm morning with the maximum temperature recorded at 11:30am. Southerly winds from midday but remaining fine. | ||||||||||||
11 | 12.3 | 22.6 | 16.1 | 5.4 | 26 | 123 | South Sth West | 0.4 | 4.2 | 1009.3 | 1025.7 | +16.4 |
Morning fog clearing with broken cloud with westerly winds turning southerly in the morning. Afternoon shower with light rain and drizzle in the evening. | ||||||||||||
12 | 11.7 | 18.6 | 14.9 | 6.3 | 32 | 142 | East Nth East | 0.4 | 2.8 | 1020.6 | 1028.6 | -8.0 |
Morning light rain and drizzle clearing by midday but remaining overcast with NE a wind. | ||||||||||||
13 | 13.6 | 30.2 | 19.5 | 8.1 | 34 | 185 | East Nth East | 1.8 | 4.4 | 998.1 | 1020.4 | -22.3 |
Broken cloud in the morning with NE winds, a brief change to warm northerly winds around 1 pm pushed the temperature up to 30,2C. Cloud increasing in the afternoon with a few spots of rain and further showers later in the evening. | ||||||||||||
14 | 10.4 | 18.0 | 12.8 | 13.4 | 41 | 307 | South Sth West | 2.4 | 33.6 | 1003.1 | 1015.4 | +12.3 |
Morning rain with fresh westerly winds turning southerly. Rain easing by late morning and clearing in the afternoon with cloud breaking. Cloud returning in the evening but remaining dry. | ||||||||||||
15 | 12.2 | 20.8 | 15.1 | 6.3 | 25 | 144 | South Sth West | 0 | 0 | 1014.8 | 1019.0 | +4.2 |
Morning cloud breaking in the afternoon with increasing sunny spells, light southerly winds. | ||||||||||||
16 | 9.1 | 20.8 | 15.7 | 7.6 | 37 | 175 | East Nth East | 0 | 0 | 1008.3 | 1019.0 | -10.7 |
Mostly clear and sunny with some high cloud in the afternoon. NE wind. | ||||||||||||
17 | 14.2 | 23.4 | 18.2 | 8.1 | 30 | 185 | East Nth East | 0 | 0 | 1003.8 | 1008.3 | -4.5 |
Variable cloud but mostly sunny, NE wind. | ||||||||||||
18 | 15.5 | 22.4 | 18.3 | 6.1 | 24 | 138 | West | 0 | 0 | 1007.7 | 1013.0 | +5.3 |
Mostly cloudy but sunny intervals in the afternoon, westerly winds turning southerly in the afternoon and to NE in the evening. | ||||||||||||
19 | 15.6 | 32.0 | 21.8 | 9.4 | 50 | 215 | East Nth East | 0 | 0 | 989.5 | 1011.5 | -22.2 |
Variable high cloud with sunny intervals. NE winds with a change to very warm nor'west from mid afternoon. | ||||||||||||
20 | 11.0 | 30.0 | 20.5 | 6.5 | 34 | 149 | North Nth West | 0 | 0 | 990.3 | 1000.8 | +10.5 |
Some high cloud but mostly sunny and warm with variable winds tending warm northerly from midday. | ||||||||||||
21 | 13.2 | 27.3 | 18.9 | 4.5 | 27 | 102 | East Nth East | 0 | 0 | 993.4 | 1006.0 | +12.6 |
Variable high cloud with sunny intervals and mostly light north to NE winds. | ||||||||||||
22 | 12.9 | 32.3 | 21.9 | 7.5 | 38 | 171 | East Nth East | 0 | 0 | 998.9 | 1006.8 | -7.9 |
Morning cloud clearing by midday. NE winds turning warm north to nor'west from mid afternoon. | ||||||||||||
23 | 10.7 | 34.7 | 22.9 | 11.3 | 76 | 259 | North Nth West | 0.8 | 4.8 | 985.9 | 1004.0 | +18.1 |
Very warm nor'west winds from morning with the temperature reaching 30C but about 10am. Wind strong and gusty in the afternoon. A strong colder southerly change in the evening with a period of rain arriving in the evening. The maximum gust of 76km/h when the southerly arrived is the highest wind speed I've recorded since 29 May 2014. In pictures: Southwesterly squall brings high winds and damage in South Island |
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24 | 6.1 | 22.1 | 14.2 | 5.8 | 34 | 131 | East Nth East | 0.2 | 0.2 | 1004.3 | 1017.5 | +13.2 |
Chilly morning. Partly cloudy with southerly winds turning NE in the afternoon. Evening shower. | ||||||||||||
25 | 10.0 | 20.8 | 15.7 | 6.2 | 33 | 140 | East Nth East | 0 | 0 | 1012.9 | 1017.6 | -4.7 |
Mostly overcast with high cloud but some sunny intervals. NE wind. | ||||||||||||
26 | 14.8 | 22.5 | 18.1 | 6.2 | 39 | 140 | East Nth East | 0 | 0 | 1000.5 | 1013.8 | -13.3 |
Partly cloudy morning, overcast in the afternoon, NE wind. | ||||||||||||
27 | 16.7 | 31.0 | 20.9 | 8.9 | 40 | 203 | East Nth East | 0 | 0 | 999.5 | 1010.2 | +10.7 |
Maximum, temperature recorded at 9am before a cooler NE wind cooled things down to about 23C for the reset of the day. Sunny with variable high cloud. | ||||||||||||
28 | 16.7 | 31.7 | 21.8 | 7.4 | 38 | 170 | East Nth East | 0 | 0 | 1003.9 | 1019.3 | +15.4 |
Some cloud at times but mostly sunny with southerly winds in the morning turning NE early afternoon. | ||||||||||||
29 | 16.6 | 23.4 | 19.5 | 7.7 | 35 | 175 | East Nth East | 0 | 0 | 1019.2 | 1020.6 | +1.4 |
Cloud increasing in the morning and overcast by midday with a NE wind. | ||||||||||||
30 | 16.6 | 33.9 | 22.5 | 4.2 | 24 | 95 | East Nth East | 0 | 0 | 1018.3 | 1022.3 | +4.0 |
Morning mist and fog clearing to a warm and sunny day with light breezes in the morning turning cooler NE in the afternoon. NZ Herald story - Revealed: Where in New Zealand the heatwave is now an official one |
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31 | 18.1 | 24.7 | 20.7 | 10.0 | 39 | 229 | East Nth East | 0 | 0 | 1007.9 | 1021.9 | -14.0 |
Sunny with NE wind freshening in the afternoon. |
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