South Johnstone Long-term Averages

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Mean Max (°C)	31.3	31.0	30.0	28.4	26.3	24.6	24.1	25.3	27.3	29.1	30.6	31.3	28.3
Mean Min (°C)	22.9	23.0	22.3	20.8	18.7	16.4	15.3	15.7	17.1	19.1	20.9	22.2	19.5
Mean Rain (mm)	512.6	565.2	588.7	398.1	267.9	152.6	113.1	91.7	84.6	90.3	140.2	266.1	3315.8
Median Rain (mm)	433.9	534.6	521.0	366.6	237.2	127.9	93.2	67.8	50.4	58.2	104.3	192.7	3270.6
Mean Rain Days	18.8	19.3	21.3	20.1	19.2	16.2	16.0	14.5	13.0	11.9	12.3	14.9	195.6

South Johnstone Daily Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max (°C)	40.0	40.5	37.6	35.3	32.0	31.0	32.2	32.3	35.0	36.3	42.2	40.4	42.2
Low Max (°C)	23.7	24.5	23.3	22.0	17.2	17.1	16.2	16.8	18.5	22.4	24.0	24.0	16.2
High Min (°C)	29.2	29.0	27.2	25.4	24.5	23.2	22.1	23.0	23.5	25.5	27.9	26.7	29.2
Low Min (°C)	14.4	16.0	15.0	11.7	7.4	5.4	3.3	6.8	7.3	9.6	10.8	14.9	3.3
High Rain (mm)	461.0	398.0	700.0	318.0	207.0	157.5	121.6	124.0	118.0	264.9	236.2	309.0	700.0

South Johnstone Monthly Records

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Mn. Max (°C)	33.8	33.4	32.3	30.7	28.1	26.3	25.7	27.2	29.1	31.7	32.9	33.4	29.1
Low Mn. Max (°C)	28.1	28.3	28.0	26.6	24.6	22.7	22.6	22.9	25.7	27.1	28.8	29.0	27.4
High Mn. Min (°C)	24.3	24.2	23.9	22.8	21.3	19.2	19.4	17.9	21.2	22.1	22.5	23.7	21.2
Low Mn. Min (°C)	20.5	20.5	19.9	18.2	14.8	11.9	10.5	12.2	13.3	16.2	18.0	19.6	17.4
High Rain (mm)	2748.6	1496.7	1576.9	1203.8	825.4	503.2	442.6	414.3	393.0	431.1	804.0	1048.7	5249.9
Low Rain (mm)	12.1	24.0	51.8	4.4	8.9	7.7	3.6	5.1	0.0	0.0	0.6	23.2	1397.1

South Johnstone Annual Temperatures & Rainfall

South Johnstone 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	0.1	0.0	0.1
≥ 35°C	1.5	1.2	0.6	0.0	0.0	0.0	0.0	0.0	0.0	0.1	0.5	1.2	5.3
≥ 30°C	24.0	19.2	17.1	5.3	0.6	0.1	0.1	0.2	2.0	9.7	19.9	23.9	120.9
≤ 2°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
≤ 0°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

South Johnstone 'per Week' Values (14th/86th Percentiles)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
High Max	33.2	33.0	31.9	30.0	28.0	26.7	26.0	27.5	29.0	31.0	32.3	33.4	31.7
Low Max	29.1	28.3	28.0	26.5	24.4	22.5	22.0	23.0	25.3	27.1	28.8	29.1	24.5
High Min	24.0	24.1	23.7	22.8	21.2	19.8	19.0	19.0	19.9	21.5	23.0	24.0	23.0
Low Min	21.0	21.3	20.2	18.3	15.6	11.9	10.8	12.0	14.0	16.5	18.5	20.1	15.0

South Johnstone Data Availability

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Ann
Years of Minima	59	58	57	55	55	57	58	59	58	57	57	57	57.0
Earliest Entry	1965	1965	1965	1965	1965	1965	1965	1965	1965	1965	1965	1965	1965
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024
Years of Maxima	59	60	58	56	57	57	58	59	58	57	58	56	57.0
Earliest Entry	1965	1965	1965	1965	1965	1965	1965	1965	1965	1965	1965	1965	1965
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024
Years of Rainfall	89	91	89	87	93	94	91	95	94	94	95	91	96.0
Earliest Entry	1920	1920	1920	1920	1920	1920	1920	1920	1920	1920	1920	1920	1920
Latest Entry	2024	2024	2024	2024	2023	2023	2023	2023	2023	2023	2023	2023	2024

Station Details

SOUTH JOHNSTONE EXP STN
North Coast & Tableland, Queensland

17.6053°S 145.9972°E 19m AMSL
Commenced 1920

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Weather News

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Decent rain en route to bone-dry southwest WA

14:29 AEST Welcome rain is coming to the parched southwest WA this week, possibly including Perth and Bunbury which are both having their driest 7 months on record. Many locations in the southwest will see the driest April on record, with much of this rainfall likely to contribute to May’s totals, as a cold front approaches the state on later in the week. Rainfall and thunderstorms are forecast in the Gascoyne region on Monday afternoon, before shifting to the Central West, Lower West and Central Wheatbelt regions on Tuesday.