St Helens Ap Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	23.0	22.1	21.1	18.6	16.1	14.1	13.6	14.3	16.1	17.6	19.5	21.3	18.1
Mean Min (°C)	13.5	13.4	11.9	9.7	7.2	5.6	4.9	5.2	6.7	8.2	10.3	11.8	9.0
Mean Rain (mm)	65.9	63.5	65.1	50.3	48.0	65.9	43.1	54.9	53.2	71.0	77.9	59.1	719.1
Median Rain (mm)	37.8	40.6	31.3	37.4	33.0	46.6	38.0	59.8	42.6	54.7	50.5	37.3	701.6
Mean Rain Days	8.7	10.2	9.6	12.1	13.7	17.0	17.0	15.6	12.2	12.6	11.4	10.7	150.1

St Helens Ap Daily Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max (°C)	41.8	35.6	34.4	28.4	24.1	19.2	19.3	20.9	25.2	29.7	33.8	36.8	41.8
Low Max (°C)	15.6	13.9	11.9	10.8	9.8	9.2	9.0	8.8	10.2	11.1	11.1	13.6	8.8
High Min (°C)	21.2	21.0	20.7	17.5	15.9	15.3	12.8	12.5	14.2	17.2	18.2	20.0	21.2
Low Min (°C)	4.8	6.3	3.1	1.3	0.0	-1.0	-0.9	-1.0	-0.3	0.9	1.9	4.3	-1.0
High Rain (mm)	148.0	84.6	112.0	184.0	104.0	83.6	41.0	64.0	82.4	67.2	121.0	69.4	184.0

St Helens Ap Monthly Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Mn. Max (°C)	25.8	24.3	22.9	20.4	17.9	15.2	14.9	15.5	17.7	19.5	21.0	23.1	18.7
Low Mn. Max (°C)	20.4	20.1	19.8	16.4	14.5	12.7	12.7	12.9	14.5	15.3	17.6	18.6	17.3
High Mn. Min (°C)	15.0	15.5	13.6	11.0	9.6	7.0	7.0	7.8	8.0	9.4	11.8	13.4	9.6
Low Mn. Min (°C)	11.8	12.0	10.5	7.4	5.9	3.2	3.0	3.7	4.8	6.2	8.5	9.8	8.1
High Rain (mm)	238.4	200.6	173.4	229.2	179.0	180.2	82.2	184.8	122.4	234.4	291.4	169.2	1214.4
Low Rain (mm)	0.2	9.6	13.0	16.4	6.4	2.0	9.6	2.6	5.2	9.4	13.2	3.8	363.4

St Helens Ap Annual Temperatures & Rainfall

St Helens Ap Average Number of Days With Temperatures

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
≥ 40°C	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0
≥ 35°C	0.4	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.5
≥ 30°C	1.7	1.0	0.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.5	0.5	3.8
≤ 2°C	0.0	0.0	0.0	0.1	1.0	4.3	5.4	5.0	1.8	0.4	0.0	0.0	18.1
≤ 0°C	0.0	0.0	0.0	0.0	0.1	0.4	0.7	0.7	0.1	0.0	0.0	0.0	1.9

St Helens Ap 'per Week' Values (14th/86th Percentiles)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max	26.2	24.6	24.1	21.3	18.4	16.0	15.2	16.6	18.3	20.0	22.7	24.2	22.3
Low Max	18.8	18.9	18.0	15.4	13.4	12.0	11.5	12.1	13.4	14.2	15.7	17.8	13.4
High Min	15.9	16.2	14.6	12.8	10.8	9.0	7.9	8.7	10.1	11.4	13.1	14.4	13.5
Low Min	9.9	10.2	8.1	6.1	4.2	2.0	1.8	2.0	3.3	4.5	7.1	8.3	4.0

St Helens Ap Data Availability

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Years of Minima	23	23	23	21	23	23	23	23	23	23	23	23	23.0
Earliest Entry	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024
Years of Maxima	23	23	23	22	23	23	23	23	23	23	23	23	23.0
Earliest Entry	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024
Years of Rainfall	23	22	22	21	23	23	22	23	22	23	23	23	23.0
Earliest Entry	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001	2001
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024

Station Details

ST HELENS AERODROME
East Coast, Tasmania

41.3381°S 148.2792°E 48m AMSL
Commenced 2001

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