Portland (Jamieson St) Weather Records (ASN00063071)

Record envelope, standing records and threshold days for Portland (Jamieson St) (ASN00063071), Australia, with 104 years of record.

Key Facts for Portland (Jamieson St)

Portland (Jamieson St) (ASN00063071) is a weather station in Australia at -33.35 latitude and 149.99 longitude, 925 m (3,035 ft) above sea level.
The station reports from 1923 to 2026, 104 years of record.
0 records set at Portland (Jamieson St) still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Portland (Jamieson St) set a daily record precipitation of 17.0 mm (0.7 in) on 23 November 2025.

About the Station

Location: Australia, -33.35 latitude, 149.99 longitude.
Elevation: 925 m (3,035 ft).
Period of record: 1923 to 2026, 104 years.
Eligible elements: prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Portland (Jamieson St). The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Portland (Jamieson St), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Which Years Hold Standing Records

0 standing records

0 records at Portland (Jamieson St) still stand.

All-Time Record Progression

1 new records

1 all-time records were set at Portland (Jamieson St) between 6 August 1986 and 6 August 1986. Each dot is a new record.

Wettest Day of Each Month

Aug: 179.0 mm (7.0 in)

The wettest day on record for each calendar month at Portland (Jamieson St). The most was 179.0 mm (7.0 in) on 6 August 1986.

Record daily precipitation for each month at Portland (Jamieson St)
Month	Record daily precipitation (mm)	Date
Jan	95.3 mm (3.8 in)	18 January 1950
Feb	74.0 mm (2.9 in)	19 February 1974
Mar	101.6 mm (4.0 in)	29 March 1950
Apr	100.0 mm (3.9 in)	20 April 1990
May	74.0 mm (2.9 in)	26 May 1974
Jun	66.5 mm (2.6 in)	24 June 1956
Jul	58.2 mm (2.3 in)	6 July 1988
Aug	179.0 mm (7.0 in)	6 August 1986
Sep	85.1 mm (3.4 in)	13 September 1973
Oct	49.0 mm (1.9 in)	24 October 1999
Nov	69.1 mm (2.7 in)	8 November 2005
Dec	66.0 mm (2.6 in)	8 December 1971

Latest Records

Latest records at Portland (Jamieson St)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 November 2025	Portland (Jamieson St), AU	daily rain	17.0 mm (0.7 in)	4.8 mm (0.19 in)	78 years	20 of 100 (Routine)
29 August 2025	Portland (Jamieson St), AU	daily rain	17.2 mm (0.7 in)	3.7 mm (0.15 in)	62 years	20 of 100 (Routine)
21 August 2025	Portland (Jamieson St), AU	daily rain	38.0 mm (1.5 in)	26.0 mm (1.0 in)	44 years	42 of 100 (Notable)
27 July 2025	Portland (Jamieson St), AU	daily rain	31.0 mm (1.2 in)	11.7 mm (0.5 in)	75 years	44 of 100 (Notable)
2 July 2025	Portland (Jamieson St), AU	daily rain	33.0 mm (1.3 in)	20.2 mm (0.8 in)	4 years	32 of 100 (Routine)
27 May 2025	Portland (Jamieson St), AU	daily rain	15.0 mm (0.6 in)	5.0 mm (0.20 in)	51 years	20 of 100 (Routine)
1 December 2024	Portland (Jamieson St), AU	daily rain	33.0 mm (1.3 in)	11.4 mm (0.4 in)	59 years	38 of 100 (Notable)
29 November 2024	Portland (Jamieson St), AU	daily rain	43.0 mm (1.7 in)	19.0 mm (0.7 in)	6 years	29 of 100 (Routine)
27 September 2024	Portland (Jamieson St), AU	daily rain	23.0 mm (0.9 in)	6.5 mm (0.26 in)	61 years	20 of 100 (Routine)
6 April 2024	Portland (Jamieson St), AU	daily rain	57.0 mm (2.2 in)	45.1 mm (1.8 in)	70 years	71 of 100 (Major)
5 April 2024	Portland (Jamieson St), AU	daily rain	23.0 mm (0.9 in)	15.6 mm (0.6 in)	73 years	20 of 100 (Routine)
17 March 2024	Portland (Jamieson St), AU	daily rain	18.0 mm (0.7 in)	6.0 mm (0.24 in)	10 years	17 of 100 (Routine)
20 December 2023	Portland (Jamieson St), AU	daily rain (Tie)	27.0 mm (1.1 in)	tie	4 years	2 of 100 (Routine)
29 November 2023	Portland (Jamieson St), AU	daily rain (Tie)	24.0 mm (0.9 in)	tie	4 years	2 of 100 (Routine)
25 November 2023	Portland (Jamieson St), AU	daily rain	38.2 mm (1.5 in)	26.2 mm (1.0 in)	4 years	36 of 100 (Notable)
5 October 2023	Portland (Jamieson St), AU	daily rain (Tie)	33.0 mm (1.3 in)	tie	64 years	7 of 100 (Routine)
31 August 2023	Portland (Jamieson St), AU	daily rain	39.0 mm (1.5 in)	23.4 mm (0.9 in)	18 years	32 of 100 (Routine)
16 July 2023	Portland (Jamieson St), AU	daily rain	52.2 mm (2.1 in)	29.8 mm (1.2 in)	70 years	63 of 100 (Major)
23 June 2023	Portland (Jamieson St), AU	daily rain	17.0 mm (0.7 in)	8.9 mm (0.35 in)	66 years	20 of 100 (Routine)
28 March 2023	Portland (Jamieson St), AU	daily rain	8.0 mm (0.31 in)	0.2 mm (0.01 in)	20 years	16 of 100 (Routine)

Extremes by Year

1923 to 2026

Yearly extremes at Portland (Jamieson St): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	179.0 mm (7.0 in)	1986	47.5 mm (1.9 in)	77
Wettest five days (Rx5day)	181.4 mm (7.1 in)	1976	74.0 mm (2.9 in)	77
Longest dry spell (CDD)	66 days	1979	26 days	77

Wettest day (Rx1day)

The wettest day of the year at Portland (Jamieson St), 1923 to 2026. The record is 179.0 mm (7.0 in) in 1986, marked on the chart; the median year is 47.5 mm (1.9 in).

Wettest day (Rx1day) at Portland (Jamieson St) by year
Year	Wettest day (Rx1day)
1923	0.0 mm (0.00 in)
1938	0.0 mm (0.00 in)
1944	16.3 mm (0.6 in)
1945	35.8 mm (1.4 in)
1946	50.3 mm (2.0 in)
1947	48.8 mm (1.9 in)
1948	34.5 mm (1.4 in)
1949	38.1 mm (1.5 in)
1950	101.6 mm (4.0 in)
1951	52.3 mm (2.1 in)
1952	39.6 mm (1.6 in)
1953	59.4 mm (2.3 in)
1954	47.0 mm (1.9 in)
1955	52.8 mm (2.1 in)
1956	66.5 mm (2.6 in)
1957	34.0 mm (1.3 in)
1958	46.2 mm (1.8 in)
1959	48.5 mm (1.9 in)
1960	71.1 mm (2.8 in)
1961	37.6 mm (1.5 in)
1962	45.7 mm (1.8 in)
1963	58.4 mm (2.3 in)
1964	71.4 mm (2.8 in)
1965	38.1 mm (1.5 in)
1966	31.8 mm (1.3 in)
1967	82.8 mm (3.3 in)
1968	64.3 mm (2.5 in)
1969	55.9 mm (2.2 in)
1970	45.7 mm (1.8 in)
1971	66.0 mm (2.6 in)
1972	51.8 mm (2.0 in)
1973	85.1 mm (3.4 in)
1974	74.0 mm (2.9 in)
1975	50.0 mm (2.0 in)
1976	80.0 mm (3.1 in)
1977	46.4 mm (1.8 in)
1978	61.3 mm (2.4 in)
1979	62.0 mm (2.4 in)
1980	32.0 mm (1.3 in)
1981	49.6 mm (2.0 in)
1982	36.6 mm (1.4 in)
1983	30.0 mm (1.2 in)
1984	65.2 mm (2.6 in)
1985	44.8 mm (1.8 in)
1986	179.0 mm (7.0 in)
1987	39.6 mm (1.6 in)
1988	58.2 mm (2.3 in)
1989	82.0 mm (3.2 in)
1990	100.0 mm (3.9 in)
1991	45.0 mm (1.8 in)
1994	26.6 mm (1.0 in)
1995	44.4 mm (1.7 in)
1998	63.0 mm (2.5 in)
1999	49.0 mm (1.9 in)
2000	25.0 mm (1.0 in)
2001	34.4 mm (1.4 in)
2002	38.4 mm (1.5 in)
2003	67.5 mm (2.7 in)
2004	42.0 mm (1.7 in)
2005	69.1 mm (2.7 in)
2006	67.0 mm (2.6 in)
2007	40.6 mm (1.6 in)
2012	34.0 mm (1.3 in)
2013	43.0 mm (1.7 in)
2014	38.0 mm (1.5 in)
2015	23.4 mm (0.9 in)
2016	47.5 mm (1.9 in)
2017	32.0 mm (1.3 in)
2018	55.0 mm (2.2 in)
2019	57.0 mm (2.2 in)
2020	45.0 mm (1.8 in)
2021	45.0 mm (1.8 in)
2022	98.0 mm (3.9 in)
2023	52.2 mm (2.1 in)
2024	57.0 mm (2.2 in)
2025	38.0 mm (1.5 in)
2026	22.0 mm (0.9 in)

Wettest five days (Rx5day)

The wettest five days of the year at Portland (Jamieson St), 1923 to 2026. The record is 181.4 mm (7.1 in) in 1976, marked on the chart; the median year is 74.0 mm (2.9 in).

Wettest five days (Rx5day) at Portland (Jamieson St) by year
Year	Wettest five days (Rx5day)
1923	0.0 mm (0.00 in)
1938	0.0 mm (0.00 in)
1944	16.3 mm (0.6 in)
1945	86.0 mm (3.4 in)
1946	96.2 mm (3.8 in)
1947	72.2 mm (2.8 in)
1948	82.5 mm (3.2 in)
1949	85.1 mm (3.4 in)
1950	167.2 mm (6.6 in)
1951	69.8 mm (2.7 in)
1952	82.8 mm (3.3 in)
1953	60.4 mm (2.4 in)
1954	81.9 mm (3.2 in)
1955	94.2 mm (3.7 in)
1956	87.6 mm (3.4 in)
1957	52.8 mm (2.1 in)
1958	88.4 mm (3.5 in)
1959	73.7 mm (2.9 in)
1960	97.8 mm (3.9 in)
1961	94.4 mm (3.7 in)
1962	133.9 mm (5.3 in)
1963	116.7 mm (4.6 in)
1964	162.6 mm (6.4 in)
1965	61.8 mm (2.4 in)
1966	63.5 mm (2.5 in)
1967	110.5 mm (4.4 in)
1968	92.3 mm (3.6 in)
1969	108.9 mm (4.3 in)
1970	74.9 mm (2.9 in)
1971	105.9 mm (4.2 in)
1972	75.6 mm (3.0 in)
1973	125.5 mm (4.9 in)
1974	99.2 mm (3.9 in)
1975	59.0 mm (2.3 in)
1976	181.4 mm (7.1 in)
1977	68.4 mm (2.7 in)
1978	95.0 mm (3.7 in)
1979	68.8 mm (2.7 in)
1980	48.0 mm (1.9 in)
1981	65.0 mm (2.6 in)
1982	37.2 mm (1.5 in)
1983	61.8 mm (2.4 in)
1984	65.2 mm (2.6 in)
1985	62.6 mm (2.5 in)
1986	77.2 mm (3.0 in)
1987	98.4 mm (3.9 in)
1988	72.0 mm (2.8 in)
1989	44.8 mm (1.8 in)
1990	110.3 mm (4.3 in)
1991	57.8 mm (2.3 in)
1994	45.6 mm (1.8 in)
1995	76.2 mm (3.0 in)
1998	63.0 mm (2.5 in)
1999	90.0 mm (3.5 in)
2000	25.0 mm (1.0 in)
2001	55.0 mm (2.2 in)
2002	50.6 mm (2.0 in)
2003	73.5 mm (2.9 in)
2004	42.0 mm (1.7 in)
2005	84.7 mm (3.3 in)
2006	87.6 mm (3.4 in)
2007	57.5 mm (2.3 in)
2012	68.2 mm (2.7 in)
2013	51.0 mm (2.0 in)
2014	80.4 mm (3.2 in)
2015	38.0 mm (1.5 in)
2016	68.6 mm (2.7 in)
2017	62.0 mm (2.4 in)
2018	79.4 mm (3.1 in)
2019	77.6 mm (3.1 in)
2020	74.0 mm (2.9 in)
2021	108.5 mm (4.3 in)
2022	100.4 mm (4.0 in)
2023	58.0 mm (2.3 in)
2024	103.3 mm (4.1 in)
2025	56.2 mm (2.2 in)
2026	27.1 mm (1.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Portland (Jamieson St), 1923 to 2026. The record is 66 days in 1979, marked on the chart; the median year is 26 days.

Longest dry spell (CDD) at Portland (Jamieson St) by year
Year	Longest dry spell (CDD)
1923	28 days
1938	31 days
1944	16 days
1945	26 days
1946	29 days
1947	21 days
1948	29 days
1949	24 days
1950	23 days
1951	32 days
1952	28 days
1953	19 days
1954	24 days
1955	21 days
1956	21 days
1957	50 days
1958	25 days
1959	45 days
1960	18 days
1961	24 days
1962	32 days
1963	30 days
1964	32 days
1965	27 days
1966	29 days
1967	43 days
1968	26 days
1969	25 days
1970	27 days
1971	22 days
1972	26 days
1973	29 days
1974	43 days
1975	29 days
1976	38 days
1977	24 days
1978	39 days
1979	66 days
1980	45 days
1981	45 days
1982	48 days
1983	23 days
1984	28 days
1985	31 days
1986	49 days
1987	32 days
1988	23 days
1989	20 days
1990	24 days
1991	24 days
1994	22 days
1995	55 days
1998	35 days
1999	24 days
2000	15 days
2001	22 days
2002	17 days
2003	37 days
2004	54 days
2005	44 days
2006	55 days
2007	15 days
2012	11 days
2013	21 days
2014	19 days
2015	15 days
2016	16 days
2017	13 days
2018	20 days
2019	28 days
2020	19 days
2021	17 days
2022	35 days
2023	40 days
2024	19 days
2025	23 days
2026	5 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Rainfall Return Levels

46 years, 1945 to 2023

A day with at least 52.3 mm (2.1 in) of rain is expected about once in 2 years. A day with at least 110.4 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Portland (Jamieson St): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	52.3 mm (2.1 in)
5 years	67.5 mm (2.7 in)
10 years	77.7 mm (3.1 in)
25 years	90.7 mm (3.6 in)
50 years	100.6 mm (4.0 in)	Longer than the 46 years of record
100 years	110.4 mm (4.3 in)	Longer than the 46 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 46 years of values from 1945 to 2023.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 101.6 mm (4.0 in) in 1950; 98.0 mm (3.9 in) in 2022; 85.1 mm (3.4 in) in 1973.

Download the Data

Data for Portland (Jamieson St) standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Portland (Jamieson St) threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a

Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	n/a	n/a	n/a	n/a
Feb	n/a	n/a	n/a	n/a
Mar	n/a	n/a	n/a	n/a
Apr	n/a	n/a	n/a	n/a
May	n/a	n/a	n/a	n/a
Jun	n/a	n/a	n/a	n/a
Jul	n/a	n/a	n/a	n/a
Aug	n/a	n/a	n/a	n/a
Sep	n/a	n/a	n/a	n/a
Oct	n/a	n/a	n/a	n/a
Nov	n/a	n/a	n/a	n/a
Dec	n/a	n/a	n/a	n/a