May 2022

May Summary

Above average temperature, 38% of expected rainfall, 75% of average wind run and the least windy month in all my records. (Corrections made 2 July 2022)

(May compared to my records from the past 10 years.)

May was above my average temperature of 9.7C with 10.4C.
- The coldest temperature was -1.1C, my average May minimum is -1.5C.
- Three air frosts (air temperature at or below 0) were recorded, my average is 3.
- The highest temperature was 24.8C, my average May maximum is 22.8C.
- No days failed to reach 10C, my average is 1 day.
- Twenty days reached or exceeded 15C, my average is 13 days.
- Five days reached or exceeded 20C, my average is 3 days.
Wind run was 75% of my average of 3230km with 2415km, the least windy month in all my records.
The barometer recorded above average pressure for the month with 1016.8hPa. My average is 1012.7hPa.
Rainfall was 38% of the average expected total of 57mm with 21.8mm,
- The driest May in the past 10 years and in all my records is 2014 with 12.5mm.
- The wettest May in the past 10 years is 2021 with 127mm.

May 2022 Summary Temperature
Mean	10.4 C
Mean Maximum	16.5 C
Mean Minimum	5.4 C
Maximum High	24.8 C (1st)
Maximum Low	12.6 C (31st)
Minimum High	10.8 C (20th)
Minimum Low	-1.1 C (27th)
Wind Speed and Direction
Maximum Gust	39 km/h (30th)
Mean	3.4 km/h
Wind Run	2415 km
Max Daily Windrun	206 km (30th)
Prevailing Direction	East North East
Barometer
Maximum	1036.3 hPa (12th)
Minimum	986.3 hPa (31st)
Mean	1016.8 hPa
Max Daily Change	-21.4 hPa (30th)
Rainfall
Days with Measured Rainfall (0.2mm or more)	12
Max Daily Rainfall	4.8 mm (30th)
Monthly Rainfall	21.8 mm
Humidity
Maximum	99 %
Minimum	43 % (1st)

May 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	8.3	24.8	15.4	2.4	29	54	East Nth East	0	0	1015.9	1023.5	-7.6
Warm in the afternoon with high cloud and light a light NE wind turning northerly for a while in the afternoon. Light shower in the evening.
2	9.4	23.2	15.4	1.2	13	26	South Sth West	0	0	1017.3	1024.9	+7.6
Cloudy morning with a few spots of rain. Cloud clearing by midday to a sunny and mild afternoon. Light breezes tending southerly.
3	7.4	20.5	12.2	1.7	17	38	East Nth East	0.2	0.2	1025.0	1030.2	+5.2
Some morning cloud, a sunny and mild afternoon with light breezes tending NE. Taranaki remains sunniest place in NZ in 2022
4	10.4	16.8	12.7	3.1	22	71	East Nth East	0	0	1029.9	1032.4	-3.4
Fog and low cloud lifting after midday with a few brighter intervals but returning from mid afternoon. Light southerly winds turning NE from midday.
5	9.4	18.6	14.0	3.3	18	75	East Nth East	0	0	1025.3	1029.2	-3.9
Morning cloud clearing to a sunny and mild afternoon with a light NE wind. Warmer winter set to follow wider NZ region's third-hottest summer
6	6.3	20.4	11.7	3.3	24	75	East Nth East	0	0	1027.5	1030.4	+2.9
Clear and sunny, mild in the afternoon. Fog rolling in later in afternoon with a NE wind.
7	10.6	19.4	13.8	4.7	20	106	East Nth East	0	0	1019.8	1029.2	-9.4
Sunny morning, high cloud increasing in the afternoon. Mostly light NE wind.
8	9.4	19.2	14.6	1.8	24	41	East Nth East	0.2	0.2	1012.6	1019.5	-6.9
Overcast with some rain around midday, light winds tending NE
9	11.2	17.6	13.6	5.7	29	129	South Sth West	0.6	4.6	1009.4	1020.0	+10.6
Overcast with early showers clearing by dawn but further showers in the afternoon. Southerly wind.
10	7.2	13.7	10.6	5.5	35	125	South Sth West	0.2	0.8	1020.3	1033.3	+13.0
Cloud increasing in the morning with a few showers. Cloud breaking by midday with sunny intervals. Cool southerly wind.
11	3.4	15.0	9.2	0.7	18	14	Variable	0	0	1032.2	1035.8	-3.6
Few clouds but mostly sunny with light variable breezes. Explained: The far-off phenomenon tipped to dampen NZ's winter
12	0.7	16.5	7.8	1.1	15	23	East Nth East	0	0	1032.2	1036.3	-4.1
Morning frost, sunny and mild in the afternoon. Light NE wind.
13	4.0	15.2	9.1	3.0	26	68	East Nth East	0	0	1020.2	1032.1	-11.9
Few clouds, mostly sunny with a cool NE wind.
14	5.8	17.6	11.9	3.2	24	73	East Nth East	0.2	0.4	1009.3	1019.8	-10.5
Overcast with some morning showers, light NE wind.
15	9.1	12.1	10.3	3.0	21	68	East Nth East	0.2	3.6	1007.5	1013.3	-5.8
Overcast with low cloud and occasional rain and drizzle.
16	9.4	14.1	11.9	4.6	27	105	East Nth East	0.4	3.0	1006.2	1009.4	-3.2
Morning rain with low cloud. Some drizzle in the afternoon, NE wind. Planes turned away from foggy Christchurch
17	8.2	16.0	11.7	5.4	30	123	East Nth East	0.2	0.2	1002.3	1009.6	+7.3
Any showers clearing before dawn. Sunny with a light NE wind turning southerly from early afternoon.
18	7.5	17.8	12.0	4.1	20	94	East Nth East	0	0	1003.7	1010.6	-6.9
Sunny and mild in the afternoon with light winds tending NE.
19	9.4	18.4	13.3	6.1	32	138	North Nth West	0.2	0.8	991.9	1003.3	-11.4
A period of rain clearing by midday with cloud breaking to a mild afternoon with northerly winds.
20	1.9	10.8	6.9	4.2	36	96	South Sth West	0.2	2.8	992.6	1005.5	+12.9
Cold southerly winds with showers. Dumping down': First decent snowfall of the year hits southern mountains In pictures: A trail of destruction left as storm batters the North Island
21	-0.8	16.4	7.0	2.5	20	57	West Nth West	0	0	997.5	1005.4	-7.9
Morning frost, sunny with light breezes tending NW.
22	1.2	14.7	8.0	4.0	33	91	East Nth East	0	0	999.9	1009.4	+9.5
Morning cloud breaking to a mostly sunny afternoon. A brief southerly change in the evening with a few spots of rain.
23	0.9	14.3	6.5	1.7	20	38	East Nth East	0	0	1009.8	1019.5	+9.7
Clear and sunny with a light breeze tending NE.
24	0.7	15.5	6.5	0.8	13	18	East Nth East	0	0	1014.7	1019.6	-4.9
Morning frost, clear and sunny with light breezes tending NE.
25	0.2	15.0	7.2	5.2	34	118	South Sth West	0	0	1012.7	1025.2	+12.5
Morning frost, sunny with some cloud from midday with a southerly change.
26	0.5	11.9	6.2	2.9	23	67	South Sth West	0.2	0.4	1024.4	1031.9	+6.5
Showers clearing by mid morning and cloud breaking to a mostly sunny afternoon. Cool southerly wind.
27	-1.1	12.6	5.4	2.1	22	49	East Nth East	0	0	1028.3	1031.9	-3.6
Morning frost, sunny but cool with a light NE wind. Red Weather: Forecasters surprised at spate of extreme events
28	1.0	14.7	6.6	1.7	17	37	East Nth East	0	0	1021.3	1028.6	-7.3
Morning frost with some fog. Sunny with light breezes tending NE.
29	-0.5	14.6	5.6	0.9	16	21	East Nth East	0	0	1016.0	1024.2	-8.2
Morning frost. Sunny but high cloud increasing during the afternoon. Light breezes tending NE.
30	4.8	14.1	11.1	9.0	39	206	East Nth East	0.4	4.8	994.2	1015.6	-21.4
Morning rain clearing by midday but low cloud remaining. NE wind.
31	12.6	21.6	15.6	7.0	28	158	East Nth East	0	0	986.3	993.9	-7.6
Some morning cloud breaking from midday to a mostly sunny and mild afternoon with north to NE winds.