April 2005

April Weather Highlights:
24th: A cold southerly change swept up the country causing hail damage in Christchurch and wind damage in Wellington along with snow to low levels. It was also the windiest day (wind run 407km) along with the lowest maximum temperature (7.2C) of the year at my station.

26th: First visible ground frost for the year, air temperature was 0.6C, the coldest for the month.

April 2005 Summary Temperature
Mean	11.4 C
Mean Maximum	16.5 C
Mean Minimum	6.4 C
Maximum High	24.9 C
Maximum Low	10.4 C
Minimum High	7.2 C
Minimum Low	0.6 C
Wind Speed and Direction
Maximum Gust	63 km/h
Average	6.2 km/h
Wind Run	4696 km
Max Daily Windrun	408 km
Prevailing Direction	North East
Rainfall
Days with Measured Rainfall	12
Max Daily Rainfall	21.2 mm
Monthly Rainfall	61.8 mm

April	Min. Temp	Max. Temp	Avg. Temp	Rain	Prevailing Wind Dir.	Avg. Wind Speed	Max Gust	Wind Run	Casual Observations
1	3.9	16.3	11.9	0	North East	6.6	36	165	Sunny with cloud increasing toward evening. NE winds.
2	10.0	18.2	12.9	0	South	6.2	35	154	Early morning light shower then sunny. Overcast later in the afternoon with cool southerly winds.
3	8.6	16.6	13.1	0	North East	8.1	36	203	Sunny with cool NE winds. High cloud increasing late afternoon.
4	9.5	24.9	17.1	0	North West	10.1	58	250	Warm nor'west winds, gusty at times turning southerly late afternoon and easing. Cloudy morning, mostly sunny afternoon.
5	5.9	17.3	11.9	0	North East	5.9	30	149	Sunny with NE winds.
6	7.9	19.6	13.8	0	North East	4.9	23	125	Morning cloud clearing to a sunny and warm day. NE winds turning southerly late afternoon.
7	5.8	20.0	11.7	3.6	South	6	38	152	High cloud in the morning but mostly sunny. Cloud increasing in the afternoon.
8	8.6	14.6	10.8	1.2	North East	3.2	27	84	Cloudy and cool with morning drizzle and evening showers.
9	10.1	15.3	11.9	20.8	South	6.7	30	170	Morning rain clearing by midday and cloud breaking a little. Rain returning in the evening.
10	8.4	17.2	12.3	1.8	North East	3.4	21	90	Early morning showers and cloud clearing to a sunny day. Light winds.
11	9.5	17.1	13.2	0	North East	8.6	35	215	Sunny with NE winds.
12	9.1	21.4	14.5	0.2	North East	4.9	25	128	Morning fog clearing to a sunny and warm day. Southerly change late afternoon but remaining dry. 0.2mm recorded from fog.
13	8.3	14.4	11.5	0	South	10.5	39	260	Mostly cloudy but some sunny breaks. Cool southerly wind easing late afternoon.
14	3.7	14.8	10.0	0	North East	3.9	24	99	Sunny with a cool NE wind.
15	3.2	15.8	9.6	0	South	4.4	28	111	Cool morning. Sunny with light southerly winds.
16	3.4	15.9	10.7	0	North East	6.7	35	167	Mostly cloudy with a cool NE wind.
17	7.5	16.8	12.5	0	South	5.0	33	127	Cloud increasing in the afternoon, southerly winds.
18	5.2	15.5	10.9	0	North East	3.2	21	84	Morning cloud clearing to a sunny afternoon with light NE winds.
19	10.4	15.0	12.3	0	North East	9.6	35	238	Cloud breaking at times, cool NE wind.
20	10.4	24.5	16.2	0	North East	6.8	41	171	Clear and sunny morning. High cloud increasing and winds turning warm nor'west, gusty for a time.
21	6.1	15.2	10.8	2.2	South	4.2	29	108	Early morning showers with hail clearing to a sunny but cool day with southerly winds.
22	6.3	16.1	11.4	0	North East	6.5	32	163	Clear and sunny with ME winds.
23	4.3	18.9	11.2	6.8	North East	4.7	49	121	High cloud and warm for much of the day. A change to cooler southerly winds in the afternoon and a very active thunderstorm around 11pm with strong cold southerly winds and hail.
24	3.4	7.2	4.9	15.6	South West	16.7	63	407	Strong cold southerly winds with hail showers. Thunder in the afternoon.
25	1.6	11.1	5.7	6.6	South West	7.9	38	195	Showers clearing by mid afternoon and cold southerly winds easing by evening.
26	0.6	11.0	6.3	2.2	South West	0.6	11	20	First visible ground frost of the year. Cloud increasing in the morning with rain then showers. Little wind.
27	6.9	15.2	10.2	0.2	North East	1.4	21	40	Early morning showers and cloud clearing. Some high cloud later in the afternoon.
28	1.5	12.6	8.2	0.6	South	6.2	34	156	Morning cloud and showers clearing to a sunny afternoon. Cool evening.
29	1.8	16.3	9.5	0	North East	5.2	27	134	Light ground frost. High cloud increasing during the morning with NE winds.
30	10.1	19.8	13.7	0	North East	7.7	37	194	Variable cloud, warm northerly winds turning gusty cool southerly for a time then back to NE late afternoon.