Lake Dartmouth Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	29.4	29.0	25.8	20.9	16.0	12.6	11.7	13.4	16.6	20.3	23.9	26.7	20.5
Mean Min (°C)	13.9	13.6	11.1	7.5	4.9	3.2	2.4	2.8	4.6	6.9	9.9	12.0	7.6
Mean Rain (mm)	66.6	55.7	61.4	57.7	86.6	101.5	113.0	121.7	102.9	95.6	73.3	74.9	998.5
Median Rain (mm)	46.7	39.6	49.0	46.5	80.0	93.4	110.6	124.8	100.1	89.2	55.1	64.0	1008.5
Mean Rain Days	6.4	5.9	6.8	7.7	10.7	12.8	15.0	14.7	13.0	11.0	8.9	7.7	119.8

Lake Dartmouth Daily Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max (°C)	42.2	43.0	39.0	33.4	26.4	20.0	19.6	27.2	28.5	33.2	37.9	39.2	43.0
Low Max (°C)	14.2	10.8	11.0	9.0	4.1	4.7	4.7	5.9	7.5	9.8	11.1	12.0	4.1
High Min (°C)	25.1	24.0	22.7	19.1	15.0	12.0	11.2	11.4	14.1	18.0	19.9	23.2	25.1
Low Min (°C)	2.8	2.3	1.9	-1.6	-3.5	-5.0	-5.4	-5.0	-3.7	-1.5	-0.2	1.4	-5.4
High Rain (mm)	85.0	99.1	70.8	57.0	91.2	54.4	66.6	91.6	101.6	104.1	65.0	118.6	118.6

Lake Dartmouth Monthly Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Mn. Max (°C)	34.4	33.8	29.1	23.8	18.0	14.5	13.3	17.0	19.5	25.4	28.7	29.9	22.1
Low Mn. Max (°C)	25.5	25.1	22.7	17.6	13.9	10.5	9.5	10.9	13.4	17.4	19.6	23.6	19.0
High Mn. Min (°C)	18.1	15.7	14.0	11.3	8.3	5.9	4.6	5.2	7.1	9.9	13.0	14.6	8.8
Low Mn. Min (°C)	10.5	11.3	9.0	4.0	2.7	0.4	0.0	-0.1	1.8	4.8	7.3	9.1	6.3
High Rain (mm)	230.2	305.2	237.2	183.2	229.7	254.3	260.2	252.1	213.4	247.4	189.6	196.0	1406.0
Low Rain (mm)	0.0	0.0	2.0	0.0	0.0	7.2	23.6	19.0	17.6	9.8	6.6	1.5	403.9

Lake Dartmouth Annual Temperatures & Rainfall

Lake Dartmouth Average Number of Days With Temperatures

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
≥ 40°C	0.2	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.3
≥ 35°C	3.5	2.0	0.6	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.2	1.0	7.2
≥ 30°C	14.1	12.2	5.0	0.2	0.0	0.0	0.0	0.0	0.0	0.3	3.0	7.5	41.9
≤ 2°C	0.0	0.0	0.1	1.6	6.8	11.4	14.5	12.4	6.9	1.9	0.4	0.0	55.8
≤ 0°C	0.0	0.0	0.0	0.3	1.7	5.2	7.3	5.8	2.4	0.3	0.0	0.0	23.0

Lake Dartmouth 'per Week' Values (14th/86th Percentiles)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max	34.0	33.8	30.5	24.7	19.5	15.2	14.2	16.7	20.2	24.6	28.9	31.5	29.2
Low Max	23.8	24.2	20.8	16.6	13.0	9.7	9.1	10.0	12.8	15.5	18.5	21.2	12.2
High Min	17.3	16.8	14.5	11.2	8.8	6.7	5.5	6.0	8.0	10.4	13.6	15.3	13.7
Low Min	9.6	10.2	7.2	3.4	1.2	-0.4	-1.0	-0.7	1.0	3.1	5.7	7.8	1.6

Lake Dartmouth Data Availability

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Years of Minima	48	46	47	46	45	47	48	46	45	47	45	46	47.0
Earliest Entry	1975	1976	1975	1975	1975	1975	1975	1975	1975	1975	1975	1975	1975
Latest Entry	2023	2024	2024	2023	2023	2023	2023	2023	2022	2023	2023	2022	2024
Years of Maxima	49	47	48	46	46	46	47	47	47	47	47	47	48.0
Earliest Entry	1975	1976	1975	1975	1975	1975	1975	1975	1975	1975	1975	1975	1975
Latest Entry	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2023	2024
Years of Rainfall	72	71	69	67	70	70	70	70	70	69	68	69	69.0
Earliest Entry	1919	1919	1919	1919	1918	1918	1918	1918	1918	1918	1918	1918	1918
Latest Entry	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2023	2024

Station Details

DARTMOUTH RESERVOIR
North East, Victoria

36.5352°S 147.4984°E 370m AMSL
Commenced 1918

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