Mount Isa Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	36.5	35.5	34.5	32.1	28.0	25.1	24.9	27.5	31.6	34.9	36.7	37.4	32.0
Mean Min (°C)	23.8	23.3	21.8	18.5	13.9	10.0	8.7	10.2	14.3	18.5	21.5	23.1	17.3
Mean Rain (mm)	115.9	101.3	68.3	13.3	11.4	6.7	7.5	3.3	8.7	19.1	38.8	67.2	463.7
Median Rain (mm)	72.8	85.6	38.0	1.8	3.7	0.0	0.0	0.4	0.4	8.6	25.2	49.4	421.2
Mean Rain Days	10.0	8.9	5.8	2.0	1.6	1.1	1.0	0.9	1.7	3.3	5.5	7.5	49.2

Mount Isa Daily Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max (°C)	45.9	43.5	41.9	38.6	37.8	34.3	35.2	36.4	40.4	42.5	43.9	45.4	45.9
Low Max (°C)	22.8	23.1	21.1	17.0	15.6	9.4	10.1	14.1	14.8	19.1	19.1	20.4	9.4
High Min (°C)	31.6	30.1	29.3	27.3	24.0	20.3	20.1	21.3	26.6	28.2	30.1	30.7	31.6
Low Min (°C)	15.4	13.1	13.1	5.8	1.8	-1.3	-2.9	-1.1	1.0	6.1	10.3	12.0	-2.9
High Rain (mm)	213.0	148.8	153.8	44.6	106.4	54.8	78.4	26.6	70.3	39.2	102.4	115.0	213.0

Mount Isa Monthly Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Mn. Max (°C)	40.3	40.5	38.3	35.1	31.1	28.8	27.9	31.6	35.3	38.2	40.1	41.2	34.2
Low Mn. Max (°C)	30.0	31.3	30.2	26.9	24.2	20.4	22.6	24.9	27.6	31.9	32.7	31.6	29.9
High Mn. Min (°C)	26.2	25.5	24.4	20.9	17.7	13.9	12.9	13.8	17.8	21.7	24.1	25.8	19.3
Low Mn. Min (°C)	21.1	19.9	18.4	15.3	9.3	6.5	5.0	5.9	10.8	14.6	19.7	20.1	15.4
High Rain (mm)	535.2	278.2	276.6	167.8	176.4	111.8	84.2	41.8	117.0	91.4	205.6	275.2	1092.4
Low Rain (mm)	0.2	2.2	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	93.4

Mount Isa Annual Temperatures & Rainfall

Mount Isa Average Number of Days With Temperatures

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
≥ 40°C	5.5	2.6	0.5	0.0	0.0	0.0	0.0	0.0	0.0	1.1	4.4	7.8	21.9
≥ 35°C	21.8	16.4	14.9	4.8	0.2	0.0	0.0	0.4	5.6	16.9	22.3	24.3	127.0
≥ 30°C	28.8	26.0	28.7	24.0	9.1	1.9	1.9	8.0	21.0	28.0	28.5	29.7	233.9
≤ 2°C	0.0	0.0	0.0	0.0	0.0	0.6	1.4	0.7	0.1	0.0	0.0	0.0	2.8
≤ 0°C	0.0	0.0	0.0	0.0	0.0	0.1	0.4	0.1	0.0	0.0	0.0	0.0	0.6

Mount Isa 'per Week' Values (14th/86th Percentiles)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max	40.0	39.0	37.0	34.7	31.2	28.5	28.4	31.2	35.3	38.0	39.8	40.5	37.9
Low Max	32.0	31.4	31.7	28.9	24.3	21.1	21.0	23.2	26.8	30.9	33.1	33.5	25.1
High Min	26.3	25.7	24.4	22.0	18.5	14.3	13.1	15.0	18.8	22.6	24.9	26.1	24.0
Low Min	21.3	21.2	18.6	15.0	9.4	5.6	4.0	5.6	9.8	14.3	17.9	20.2	9.3

Mount Isa Data Availability

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Years of Minima	56	57	57	56	56	56	57	56	54	56	57	56	57.0
Earliest Entry	1967	1967	1967	1967	1967	1967	1967	1967	1967	1967	1967	1966	1966
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024
Years of Maxima	57	57	57	56	56	56	57	56	55	56	57	56	57.0
Earliest Entry	1967	1967	1967	1967	1967	1967	1967	1967	1967	1967	1967	1966	1966
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024
Years of Rainfall	58	57	57	57	57	57	57	57	57	57	57	56	57.0
Earliest Entry	1967	1967	1967	1967	1967	1967	1967	1967	1967	1967	1967	1966	1966
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024

Station Details

MOUNT ISA AERO
Northwest, Queensland

20.6778°S 139.4875°E 341m AMSL
Commenced 1966

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