A typical January from my records;
- An average temperature of 17.4C.
- Maximum temperature expected about 34C.
- Minimum temperature expected about 6C.
- Twenty four days are expected to reach or exceed 20C.
- Twelve days are expected to reach or exceed 25C.
- Five days are expected to reach or exceed 30C.
- No days are expected to reach or exceed 35C on average though 4 January days have done in 2009,2016 and 2 days in 2018
- Wind run would be around 5400km with the windiest day expected to have a wind run of 320km.
- Maximum wind gust would be in the region of 60km/h.
- There would be rain on 8 days with the monthly total of around 50mm.
Rain totals for the month and year along with temperature and wind comparisons can be found here.
January 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 | 14.6 | 22.6 | 17.3 | 8.1 | 37 | 182 | East Nth East | 0 | 0 | 1010.7 | 1018.5 | -7.8 |
Morning cloud breaking with sunny intervals, cloud increasing later in the afternoon, NE winds freshening in the afternoon. | ||||||||||||
2 | 15.0 | 20.0 | 16.3 | 6.3 | 25 | 144 | East Nth East | 0.4 | 2.0 | 1008.5 | 1012.6 | -4.1 |
Overcast with morning drizzle and occasional afternoon showers, NE wind. Wild weather: South Island flooding causes havoc, more than 1000 lightning strikes detected across the North Island |
||||||||||||
3 | 13.7 | 25.6 | 18.6 | 4.1 | 26 | 92 | East Nth East | 0.2 | 0.4 | 1008.8 | 1013.4 | +4.6 |
Morning cloud breaking. A few spots of rain around midday but a mostly sunny and warm afternoon. Light NE winds. Severe thunderstorm brings torrential rain and hail to Timaru and Waimate |
||||||||||||
4 | 10.0 | 27.2 | 17.5 | 6.2 | 33 | 141 | East Nth East | 0 | 0 | 1013.7 | 1021.4 | +7.7 |
Warm morning with variable breezes tending northerly. Cooler NE wind from midday. | ||||||||||||
5 | 13.5 | 21.0 | 16.7 | 7.2 | 34 | 164 | East Nth East | 0 | 0 | 1013.7 | 1021.9 | -8.2 |
Cloud increasing and a few spots of rain in the afternoon. NE winds freshening in the evening. | ||||||||||||
6 | 13.5 | 21.4 | 17.2 | 7.1 | 32 | 162 | East Nth East | 0.2 | 0.6 | 1009.0 | 1017.2 | -8.2 |
Morning drizzle clearing and cloud breaking by midday to a sunny and mild afternoon. NE wind. | ||||||||||||
7 | 15.4 | 31.3 | 20.8 | 7.7 | 31 | 176 | East Nth East | 0.2 | 1.0 | 999.4 | 1008.7 | -9.3 |
Morning cloud breaking then sunny and hot with light southerly winds from midday. Showers in the afternoon and evening. Hey, Niwa – what happened to our long, hot summer? |
||||||||||||
8 | 12.3 | 19.0 | 14.6 | 11.0 | 35 | 251 | South Sth West | 0.2 | 1.6 | 1002.9 | 1011.4 | +8.5 |
Overcast with morning drizzle. Cloud breaking with sunny intervals in the afternoon, cool southerly winds. | ||||||||||||
9 | 11.6 | 22.2 | 16.3 | 5.0 | 32 | 112 | East Nth East | 0 | 0 | 1008.8 | 1013.3 | +4.5 |
Overcast and calm morning. Cloud breaking with NE wind in the afternoon. | ||||||||||||
10 | 12.4 | 21.3 | 16.6 | 7.3 | 33 | 162 | East Nth East | 0.6 | 1.4 | 1004.1 | 1013.5 | -9.4 |
Morning showers and drizzle clearing and cloud breaking to a sunny and mild afternoon. NE wind. | ||||||||||||
11 | 12.3 | 18.3 | 15.1 | 6.5 | 29 | 147 | East Nth East | 0 | 0 | 1007.2 | 1021.4 | +14.2 |
Cloudy with a southerly wind turning NE about midday. | ||||||||||||
12 | 14.6 | 20.8 | 17.1 | 10.6 | 41 | 243 | East Nth East | 0 | 0 | 1019.8 | 1022.4 | -2.6 |
Morning cloud with some drizzle. Cloud breaking in the afternoon with a freshening NE wind. 47 months and counting without a colder-than-normal month - when will it break? |
||||||||||||
13 | 14.9 | 29.9 | 20.3 | 3.9 | 24 | 88 | East Nth East | 0 | 0 | 1017.6 | 1021.1 | -3.5 |
Morning low cloud breaking and clearing by midday. Sunny and warm with light variable winds tending NE. | ||||||||||||
14 | 15.4 | 27.5 | 18.8 | 5.9 | 25 | 134 | East Nth East | 0 | 0 | 1013.8 | 1018.1 | -4.3 |
Low cloud breaking and clearing after midday to a sunny afternoon, hazy with increasing cloud later in the afternoon. west to SW winds turning NE later in the afternoon. Christchurch residents restricted to watering gardens on alternate days |
||||||||||||
15 | 15.6 | 24.7 | 18.8 | 6.5 | 34 | 148 | East Nth East | 0 | 0 | 1010.2 | 1015.6 | -5.4 |
Morning cloud breaking to a sunny day with NE winds freshening later in the afternoon. | ||||||||||||
16 | 16.0 | 20.7 | 17.9 | 13.1 | 47 | 299 | East Nth East | 0 | 0 | 1000.4 | 1010.9 | -10.5 |
Cloudy with a fresh NE wind. | ||||||||||||
17 | 15.1 | 27.9 | 20.1 | 10.4 | 44 | 248 | East Nth East | 1.2 | 3.2 | 984.5 | 1000.0 | -15.5 |
Morning cloud and a period or rain before midday. Cloud breaking and winds turning warm northerly in the afternoon. | ||||||||||||
18 | ||||||||||||
19 | ||||||||||||
20 | ||||||||||||
21 | ||||||||||||
22 | ||||||||||||
23 | ||||||||||||
24 | ||||||||||||
25 | ||||||||||||
26 | ||||||||||||
27 | ||||||||||||
28 | ||||||||||||
29 | ||||||||||||
30 | ||||||||||||
31 | ||||||||||||