April Summary
Near average temperature, above average wind run and just 10% of expected rainfall.
(April compared to my records from the past 10 years.)
- This April is near my average temperature of 12.3C with 12.4C.
- The warmest temperature was 24.3C, my April record is 29.0C recorded in 2017.
- The coldest temperature was 1.5C, my lowest April temperature is -1.7 2011.
- Twenty eight days reached or exceeded 15C, my average is 23 days.
- Six days reached or exceeded 20C, my average is 8 days.
- No days reached or exceeded 25C, my average is 2 days.
- Wind run was 108% of my average of 3579km with 3879km.
- The barometer recorded below average pressure for the month with 1010.6hPa. My average is 1015.3hPa.
- Rainfall was the lowest for April in the past 10 years, just 10% of the average expected total of 78mm with 7.8m.
- 2001 is the driest April in my records with 4.5mm
- The wettest April in the past 10 years and in my 20 years of records is 2014 with 202mm.
April 2020 Summary Temperature | |
---|---|
Mean | 12.4 C |
Mean Maximum | 18.7 C |
Mean Minimum | 7.2 C |
Maximum High | 24.3 C (30th) |
Maximum Low | 13.1 C (6th) |
Minimum High | 13.3 C (15th) |
Minimum Low | 1.5 C (14th) |
Wind Speed and Direction | |
Maximum Gust | 49 km/h (14th) |
Mean | 5.7 km/h |
Wind Run | 3879 km |
Max Daily Windrun | 281 km (4th) |
Prevailing Direction | East North East |
Barometer | |
Maximum | 1031.3 hPa (29th) |
Minimum | 971.3 hPa (13th) |
Mean | 1010.6 hPa |
Max Daily Change | +23.5 hPa (12th) |
Rainfall | |
Days with Measured Rainfall (0.2mm or more) |
5 |
Max Daily Rainfall | 7.0 mm (18th) |
Monthly Rainfall | 7.8 mm |
Humidity | |
Maximum | 96 % (Several Days) |
Minimum | 28 % (30th) |
April 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 | 10.6 | 19.0 | 13.7 | 1.9 | 16 | 41 | South Sth West | 0 | 0 | 1019.1 | 1022.1 | +3.0 |
Low cloud breaking to a sunny and mild afternoon with light southerly breezes | ||||||||||||
2 | 10.1 | 18.2 | 13.3 | 3.9 | 23 | 87 | West | 0 | 0 | 1020.1 | 1023.5 | +3.4 |
Morning low cloud breaking to a sunny afternoon with light winds tending westerly. | ||||||||||||
3 | 8.7 | 18.2 | 12.4 | 4.2 | 24 | 95 | East Nth East | 0 | 0 | 1022.8 | 1026.5 | +3.7 |
morning low cloud lifting and breaking to a sunny afternoon, low cloud returning later in the afternoon. | ||||||||||||
4 | 11.3 | 17.1 | 13.7 | 12.4 | 42 | 281 | East Nth East | 0.2 | 0.2 | 1025.6 | 1027.7 | +1.9 |
Early drizzle clearing but remaining cloudy with a fresh NE wind History: Great problem of science resolved with help from botanic gardens |
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5 | 12.3 | 18.5 | 14.7 | 11.5 | 37 | 274 | East Nth East | 0 | 0 | 1023.1 | 1027.3 | -4.2 |
Few clouds, sunny with NE wind. | ||||||||||||
6 | 13.1 | 18.7 | 14.7 | 9.0 | 30 | 205 | East | 0 | 0 | 1012.5 | 1022.9 | -10.4 |
7 | 12.6 | 23.6 | 16.6 | 7.3 | 37 | 166 | East Nth East | 0 | 0 | 1001.4 | 1012.2 | -10.8 |
Cloudy with some sunny intervals, mild. A cooler southerly change from late afternoon with a few spots of drizzle in the evening. | ||||||||||||
8 | 11.1 | 17.1 | 13.5 | 5.3 | 29 | 122 | East nth East | 0 | 0 | 1006.4 | 1011.1 | -4.7 |
Few clouds, mostly sunny with NE wind. | ||||||||||||
9 | 6.6 | 18.6 | 12.1 | 2.9 | 31 | 66 | West Nth West | 0 | 0 | 1006.7 | 1014.1 | +7.4 |
Mostly cloudy with a few sunny intervals. Light breezes tending nor'west. | ||||||||||||
10 | 3.9 | 19.1 | 4.6 | 25 | 104 | East Nth East | 0 | 0 | 1012.7 | 1016.6 | -3.9 | |
Sunny and mild in the afternoon with mostly light NE winds. | ||||||||||||
11 | 11.1 | 172 | 13.8 | 9.5 | 36 | 219 | East Nth East | 0 | 0 | 1002.3 | 1012.7 | -10.4 |
Morning cloud breaking to mostly sunny day with NE wind | ||||||||||||
12 | 7.6 | 22.3 | 15.6 | 7.1 | 36 | 161 | East Ntn East | 0 | 0 | 978.6 | 1002.1 | -23.5 |
Mild with high cloud and NE winds. | ||||||||||||
13 | 6.7 | 19.6 | 13.9 | 7.5 | 39 | 172 | South Sth West | 0 | 0 | 971.3 | 992.5 | +21.2 |
Variable high cloud in the morning, a mostly sunny afternoon with wind turning more southerly. | ||||||||||||
14 | 1.5 | 13.9 | 8.2 | 11.6 | 49 | 266 | South Sth West | 0 | 0 | 992.9 | 1008.0 | +15.1 |
Variable cloud, few spots of rain in the morning. Cold southerly winds. | ||||||||||||
15 | 4.1 | 13.3 | 8.5 | 9.3 | 37 | 212 | South Sth West | 0 | 0 | 1005.0 | 1011.2 | -6.2 |
Variable cloud with sunny intervals in the morning, overcast in the afternoon. Cold southerly winds dying away in the evening. | ||||||||||||
16 | 3.7 | 18.8 | 10.6 | 3.4 | 21 | 78 | East Nth East | 0 | 0 | 996.9 | 1004.6 | -7.7 |
Sunny with high cloud. Light winds turning NE in the afternoon. | ||||||||||||
17 | 6.5 | 15.5 | 11.0 | 4.1 | 26 | 94 | East Nth East | 0.2 | 0.2 | 993.2 | 997.4 | -4.0 |
Mostly cloudy with morning showers clearing by midday. Mostly light NE winds. | ||||||||||||
18 | 8.5 | 19.4 | 13.1 | 7.0 | 33 | 154 | East Nth East | 0.8 | 7.0 | 989.1 | 994.2 | -5.1 |
Morning rain with NE winds. Rain clearing later in the morning to a sunny and mild afternoon with nor'west winds. | ||||||||||||
19 | 6.2 | 19.0 | 12.4 | 6.3 | 38 | 143 | North Nth West | 0 | 0 | 992.8 | 1006.7 | +13.7 |
Sunny and mild with nor'west winds. | ||||||||||||
20 | 4.2 | 19.5 | 10.2 | 1.5 | 24 | 35 | North Nth West | 0 | 0 | 1006.2 | 1014.0 | +7.8 |
Sunny morning with mild northerlies, cloud increasing in the afternoon. | ||||||||||||
21 | 1.6 | 16.5 | 9.2 | 3.5 | 21 | 79 | Eat Nth East | 0 | 0 | 1013.9 | 1017.1 | +3.2 |
Sunny with light winds. Christchurch residents wake to unusually chilly temperatures for April The coldest April temperature I've recorded was 28 April 2011 with -1.7C |
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22 | 8.1 | 18.4 | 12.7 | 3.3 | 21 | 74 | East Nth East | 0 | 0 | 1012.9 | 1015.4 | +2.5 |
Sunny with some cloud high in the afternoon, light variable breezes. | ||||||||||||
23 | 5.7 | 17.1 | 10.6 | 0.9 | 16 | 20 | East Nth East | 0.2 | 0.2 | 1007.4 | 1014.1 | -6.7 |
Morning fog clearing to a sunny morning. Overcast in the afternoon. Light breezes. | ||||||||||||
24 | 2.1 | 20.4 | 10.9 | 2.6 | 21 | 59 | East Nth East | 0 | 0 | 1008.0 | 1010.0 | +2.0 |
Sunny and mild with light NE winds in the afternoon. | ||||||||||||
25 | 8.1 | 23.0 | 14.1 | 4.0 | 44 | 92 | North Nth West | 0 | 0 | 1004.1 | 1017.4 | +13.3 |
Sunny and mild with gusty nor'west winds for a time. | ||||||||||||
26 | 6.6 | 15.8 | 11.5 | 6.8 | 36 | 155 | East Nth East | 0 | 0 | 1008.8 | 1018.3 | -9.5 |
Overcast with NE winds | ||||||||||||
27 | 10.2 | 22.9 | 15.7 | 8.2 | 44 | 186 | East Nth East | 0 | 0 | 1001.7 | 1013.0 | +11.3 |
High cloud with sunny intervals, mild northerly winds in the morning easing and turning NE in the afternoon. | ||||||||||||
28 | 3.0 | 18.0 | 10.6 | 3.8 | 24 | 87 | East | 0 | 0 | 1012.5 | 1029.2 | +16.7 |
Sunny with light NE wind. | ||||||||||||
29 | 6.8 | 18.0 | 12.5 | 4.8 | 25 | 110 | East Nth East | 0 | 0 | 1029.1 | 1031.3 | -2.2 |
Sunny with thin high cloud at times, light NE winds. | ||||||||||||
30 | 2.3 | 24.3 | 11.9 | 1.2 | 15 | 28 | East Nth East | 0 | 0 | 1020.2 | 1028.9 | -8.7 |
Sunny and warm with some high cloud. Light breezes tending NE. |
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