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Bureau Home > Climate > Climate Data Online > Monthly Statistics

Climate statistics for Australian locations

Monthly climate statistics

All years of record

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NORMANTON POST OFFICE

An extended list of climate statistics recorded is provided below. There is also a summary table for printing with the commonly requested statistics and a map showing the location of this site. Monthly statistics are only included if there are more than 10 years of suitable data.

Note: Many statistics are updated quarterly and recent weather events may not be represented in the statistics below. For more current information on recent extreme values, please refer to the corresponding Daily rainfall, Maximum temperature and Minimum temperature data tables for this site, and our Australian Climate and Weather Extremes Monitoring System. Missing observations associated with the observer being unavailable (where observations are undertaken manually), a failure in the observing equipment, or when an event has produced suspect data may result in an extreme event not being recorded.

Site details

Site name: NORMANTON POST OFFICE		Site number: 029041	Commenced: 1872	Map
Latitude: 17.67° S	Longitude: 141.07° E	Elevation: 8 m	Operational status: Closed 15 Aug 2001	Map

Statistics	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual	Years		Plot	Map
Temperature
Maximum temperature
Mean maximum temperature (°C)	34.7	33.9	34.2	34.0	31.6	29.2	29.1	31.1	33.9	35.9	36.8	36.1	33.4	91	1908 2001
Highest temperature (°C)	43.3	41.0	41.7	40.0	38.3	37.5	35.6	38.3	40.7	43.9	43.6	43.3	43.9	90	1910 2001
Date	04 Jan 1931	09 Feb 1990	17 Mar 1915	02 Apr 1942	11 May 1915	13 Jun 1910	15 Jul 1995	26 Aug 1968	29 Sep 1915	26 Oct 1916	03 Nov 1915	17 Dec 1967	26 Oct 1916
Lowest maximum temperature (°C)	23.9	21.7	22.6	19.3	20.0	13.1	15.0	18.3	17.0	22.3	23.4	23.3	13.1	90	1910 2001
Date	21 Jan 1952	29 Feb 1940	03 Mar 1998	27 Apr 1983	24 May 1959	16 Jun 1936	02 Jul 1938	22 Aug 1930	07 Sep 1973	25 Oct 1985	22 Nov 1989	21 Dec 1950	16 Jun 1936
Decile 1 maximum temperature (°C)	30.6	30.0	30.6	31.5	28.3	25.1	25.6	27.8	31.5	33.9	34.4	32.5		90	1910 2001
Decile 9 maximum temperature(°C)	38.1	37.2	37.2	36.4	34.4	32.2	32.0	33.9	36.2	38.3	39.4	39.4		90	1910 2001
Mean number of days ≥ 30 °C	27.8	25.0	28.2	27.7	24.4	14.3	13.2	22.0	28.1	29.7	28.4	28.9	297.7	91	1910 2001
Mean number of days ≥ 35 °C	16.9	10.6	12.8	10.3	1.6	0.1	0.0	1.2	9.3	22.2	24.8	21.9	131.7	91	1910 2001
Mean number of days ≥ 40 °C	0.6	0.2	0.1	0.0	0.0	0.0	0.0	0.0	0.0	0.8	2.2	2.2	6.1	91	1910 2001
Minimum temperature
Mean minimum temperature (°C)	25.1	24.9	24.4	22.4	19.1	16.1	15.3	16.5	19.6	22.6	24.8	25.3	21.3	92	1908 2001
Lowest temperature (°C)	13.9	17.3	15.0	8.9	7.2	5.0	5.4	6.6	9.4	10.6	13.9	12.8	5.0	90	1910 2001
Date	09 Jan 1959	14 Feb 1987	27 Mar 1947	27 Apr 1947	24 May 1959	28 Jun 1948	02 Jul 1917	03 Aug 1990	03 Sep 1948	16 Oct 1946	23 Nov 1933	13 Dec 1926	28 Jun 1948
Highest minimum temperature (°C)	31.7	29.3	28.6	28.9	26.8	25.0	24.8	25.0	27.3	29.4	32.2	31.7	32.2	90	1910 2001
Date	01 Jan 1914	11 Feb 1928	05 Mar 1988	20 Apr 1916	15 May 1987	14 Jun 1931	15 Jul 1927	21 Aug 1944	14 Sep 1935	28 Oct 1998	10 Nov 1952	10 Dec 1928	10 Nov 1952
Decile 1 minimum temperature (°C)	22.8	22.8	22.2	19.0	15.0	11.7	11.1	12.4	16.1	19.4	22.2	22.8		90	1910 2001
Decile 9 minimum temperature (°C)	27.4	27.0	26.4	25.0	23.0	20.2	19.4	20.0	22.8	25.6	27.0	27.8		90	1910 2001
Mean number of days ≤ 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	91	1910 2001
Mean number of days ≤ 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	91	1910 2001
Ground surface temperature
Mean daily ground minimum temperature (°C)
Lowest ground temperature (°C)
Date
Mean number of days ground min. temp. ≤ -1 °C
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Statistics	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual	Years		Plot	Map
Rainfall
Mean rainfall (mm)	260.2	249.2	157.7	30.9	7.5	9.2	3.2	1.7	3.0	10.5	45.1	144.4	921.5	129	1872 2001
Highest rainfall (mm)	965.1	769.4	578.9	304.8	198.9	105.6	84.8	34.0	63.3	98.5	232.4	618.5	1851.5	129	1872 2001
Date	1974	1875	1947	1874	1876	1935	1874	1891	1973	1909	1973	1889	1974
Lowest rainfall (mm)	2.3	3.4	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	0.0	354.1	129	1872 2001
Date	1884	1952	1946	2001	2001	1999	2001	2000	2000	1994	1907	1938	1884
Decile 1 rainfall (mm)	71.0	64.3	22.3	0.0	0.0	0.0	0.0	0.0	0.0	0.0	6.1	40.8		130	n/a n/a
Decile 5 (median) rainfall (mm)	240.3	224.0	148.6	15.7	0.0	0.0	0.0	0.0	0.0	1.6	35.6	123.4		130	n/a n/a
Decile 9 rainfall (mm)	480.7	456.8	298.7	84.0	23.0	38.9	7.7	1.7	9.0	29.7	100.4	293.6		130	n/a n/a
Highest daily rainfall (mm)	272.3	282.2	299.0	174.0	47.8	78.0	59.9	31.0	49.8	71.9	136.9	172.7	299.0	120	1872 2001
Date	13 Jan 1905	14 Feb 1949	29 Mar 1958	04 Apr 1921	31 May 1936	16 Jun 1939	09 Jul 1944	01 Aug 1891	18 Sep 1919	18 Oct 1897	13 Nov 1916	26 Dec 1903	29 Mar 1958
Mean number of days of rain	13.9	13.9	9.4	2.4	0.9	0.7	0.5	0.3	0.4	1.3	4.4	9.0	57.1	119	1872 2001
Mean number of days of rain ≥ 1 mm	11.1	11.0	7.4	1.9	0.6	0.5	0.3	0.2	0.3	0.8	3.3	6.9	44.3	120	1872 2001
Mean number of days of rain ≥ 10 mm	5.9	5.9	3.8	0.7	0.2	0.2	0.1	0.1	0.1	0.3	1.3	3.4	22.0	120	1872 2001
Mean number of days of rain ≥ 25 mm	3.1	2.8	1.7	0.3	0.1	0.1	0.0	0.0	0.0	0.1	0.4	1.6	10.2	120	1872 2001
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Statistics	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual	Years		Plot	Map
Other daily elements
Mean daily wind run (km)
Maximum wind gust speed (km/h)	109	87	89	59	61	58	68	63	67	87	89	93	109	16	1979 2001
Date
Mean daily sunshine (hours)
Mean daily solar exposure (MJ/m²)	21.7	21.6	22.5	21.2	18.6	17.5	18.4	21.2	24.1	26.0	25.8	24.1	21.9	35	1990 2025
Mean number of clear days	2.4	1.5	4.9	10.2	14.9	18.4	20.6	22.3	20.0	17.0	8.8	4.9	145.9	45	1957 2001
Mean number of cloudy days	16.6	16.4	12.6	5.9	4.3	2.7	2.0	1.4	1.6	2.4	6.0	11.8	83.7	45	1957 2001
Mean daily evaporation (mm)	7.2	6.5	6.8	7.5	7.4	6.9	7.1	8.3	9.5	10.1	9.9	8.5	8.0	31	1970 2001
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Statistics	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual	Years		Plot	Map
9 am conditions
Mean 9am temperature (°C)	29.0	28.4	28.1	27.0	23.8	20.5	19.7	22.0	25.6	28.9	30.3	29.9	26.1	45	1908 2001
Mean 9am wet-bulb temperature (°C)	25.3	25.2	23.9	21.2	17.7	14.9	13.8	15.1	18.1	21.2	23.3	24.8	20.4	46	1908 2001
Mean 9am dew-point temperature (°C)	23.5	23.7	21.6	17.4	12.7	9.6	7.3	8.0	11.2	15.7	18.7	22.0	15.9	44	1957 2001
Mean 9am relative humidity (%)	74	77	70	58	52	52	47	44	45	49	54	65	57	44	1952 2001
Mean 9am cloud cover (oktas)	5.3	5.3	4.4	2.8	2.2	1.5	1.5	1.1	1.4	1.9	3.4	4.4	2.9	46	1908 2001
Mean 9am wind speed (km/h)	8.9	8.4	9.7	12.0	13.2	12.8	12.6	13.3	14.1	13.3	11.9	9.9	11.7	44	1957 2001
9am wind speed vs direction plot
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Statistics	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual	Years		Plot	Map
3 pm conditions
Mean 3pm temperature (°C)	33.2	32.6	33.0	33.1	30.9	28.6	28.4	30.2	32.8	34.8	35.4	34.5	32.3	45	1917 2001
Mean 3pm wet-bulb temperature (°C)	25.9	25.9	24.7	22.6	20.1	18.3	17.5	18.3	20.3	22.7	24.2	25.4	22.2	45	1917 2001
Mean 3pm dew-point temperature (°C)	22.4	22.8	20.2	16.1	12.3	9.7	7.5	7.7	10.5	14.7	17.4	20.5	15.1	44	1957 2001
Mean 3pm relative humidity (%)	57	59	50	38	34	33	29	27	28	33	39	48	40	44	1952 2001
Mean 3pm cloud cover (oktas)	5.9	6.0	5.2	4.0	3.2	2.2	1.8	1.6	1.8	2.7	3.8	4.9	3.6	45	1909 2001
Mean 3pm wind speed (km/h)	11.3	10.2	9.3	9.5	10.1	10.4	10.2	11.2	12.8	14.7	15.0	12.9	11.5	43	1957 2001
3pm wind speed vs direction plot

red = highest value blue = lowest value

Product IDCJCM0036 Prepared at Thu 24 Apr 2025 00:53:04 AM AEST

Monthly statistics are only included if there are more than 10 years of data. The number of years (provided in the 2nd last column of the table) may differ between elements if the observing program at the site changed. More detailed data for individual sites can be obtained by contacting the Bureau.

Related information

Maps

Long term climatology maps for selected elements
Rainfall maps and temperature maps based on recent observations

Recent observations for this site

Daily Weather Observations from this site are included in the Daily Weather Observations

Climate outlooks

Monthly and seasonal climate outlooks

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Page created: Thu 24 Apr 2025 00:53:04 AM AEST