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Weather & Climate in Witherlea, New Zealand
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Witherlea enjoys a temperate climate with an average annual temperature of 56°F (13°C). Winters average 63°F in January while summers reach 47°F in July / relatively mild seasonal variation. The area gets 298 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 29.5 inches (drier than the 38-inch national average). The city sits at an elevation of 43 feet.
Temperature
63°F Jan (17°C)
47°F Jul (8°C)
| Annual Average | 55.6°F |
| 3% above US avg | |
| January Average | 63°F (17°C) |
| July Average | 47°F (8°C) |
| Sunny Days | 298 days/yr |
Geography
| Elevation | 43 ft (13 m) |
| Area | 7,329.1 sq mi (18,982.3 km²) |
| Population Density | 1/sq mi |
| Coordinates | -41.5283°N, 173.9502°W |
| Timezone | Pacific/Auckland |
Precipitation & Snow
Air Quality
Earthquake History
1,148 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M6.5.
| Aug 16, 2013 | 29 km SE of Blenheim, New Zealand | M6.5 | 28 km | 8 km |
| Jul 21, 2013 | 38 km ESE of Blenheim, New Zealand | M6.5 | 38 km | 17 km |
| Apr 24, 2015 | 73 km S of Wakefield, New Zealand | M6.1 | 98 km | 48 km |
| May 27, 1992 | 21 km WSW of Blenheim, New Zealand | M6.0 | 21 km | 85 km |
| Feb 10, 1990 | 90 km N of Amberley, New Zealand | M6.0 | 132 km | 10 km |
| Jul 20, 2013 | 38 km ESE of Blenheim, New Zealand | M5.9 | 38 km | 14 km |
| Aug 16, 2013 | 30 km ESE of Blenheim, New Zealand | M5.9 | 30 km | 14 km |
| Aug 16, 2013 | 26 km SSE of Blenheim, New Zealand | M5.9 | 25 km | 9 km |
| Mar 22, 1995 | 27 km N of Picton, New Zealand | M5.8 | 54 km | 87 km |
| Feb 10, 1990 | 90 km N of Amberley, New Zealand | M5.7 | 144 km | 10 km |
| Feb 15, 2023 | 55 km NW of Raumati Beach, New Zealand | M5.7 | 119 km | 78 km |
| Oct 4, 1990 | 25 km SE of Brooklyn, New Zealand | M5.6 | 84 km | 37 km |
| Aug 16, 2013 | 30 km SSE of Blenheim, New Zealand | M5.5 | 30 km | 6 km |
| Oct 6, 1990 | 24 km SW of Waipawa, New Zealand | M5.5 | 116 km | 39 km |
| Jul 18, 2013 | 38 km E of Blenheim, New Zealand | M5.5 | 38 km | 18 km |
| Aug 16, 2013 | 25 km SSE of Blenheim, New Zealand | M5.4 | 24 km | 9 km |
| Jan 5, 2017 | 36 km SSE of Blenheim, New Zealand | M5.4 | 35 km | 17 km |
| Jan 20, 2005 | 16 km SE of Upper Hutt, New Zealand | M5.3 | 111 km | 39 km |
| Jul 21, 2013 | 34 km E of Blenheim, New Zealand | M5.3 | 35 km | 13 km |
| Aug 17, 2013 | 29 km SSE of Blenheim, New Zealand | M5.2 | 28 km | 20 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tsunami History
4 tsunamis recorded within 500 km. Highest wave on record: 11.0 m (36 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1855 | NORTHERN ISLAND | Earthquake | 11.0 m | — | 93 km |
| 2013 | WELLINGTON | Earthquake | 0.1 m | — | 28 km |
| 2013 | COOK STRAIT | Earthquake | 0.1 m | — | 38 km |
| 1855 | WHARANUI | Earthquake | — | — | 46 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 63°F (17°C) | 3.1 in | Warmest |
| February | 63°F (17°C) | 2.1 in | Driest |
| March | 60°F (16°C) | 3.4 in | |
| April | 55°F (13°C) | 2.8 in | |
| May | 50°F (10°C) | 3.4 in | |
| June | 45°F (7°C) | 2.8 in | Coldest |
| July | 47°F (8°C) | 3.4 in | |
| August | 46°F (8°C) | 3.7 in | Wettest |
| September | 50°F (10°C) | 3.0 in | |
| October | 53°F (12°C) | 3.6 in | |
| November | 57°F (14°C) | 3.4 in | |
| December | 60°F (16°C) | 3.3 in |
Witherlea has a seasonal temperature swing of 18°F / from 45°F in June to 63°F in January. Total annual precipitation is 38.1 inches, with August being the wettest month (3.7") and February the driest (2.1").