Guildford Post Office Weather Records (ASN00009022)

Record envelope, standing records and threshold days for Guildford Post Office (ASN00009022), Australia, with 78 years of record.

Key Facts for Guildford Post Office

Guildford Post Office (ASN00009022) is a weather station in Australia at -31.90 latitude and 115.97 longitude, 15 m (49 ft) above sea level.
The station reports from 1877 to 1954, 78 years of record.
0 records set at Guildford Post Office still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Guildford Post Office set a daily record precipitation of 28.4 mm (1.1 in) on 30 May 1954.

About the Station

Location: Australia, -31.90 latitude, 115.97 longitude.
Elevation: 15 m (49 ft).
Period of record: 1877 to 1954, 78 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 Guildford Post Office. 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 Guildford Post Office, 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 Guildford Post Office still stand.

Wettest Day of Each Month

Jun: 132.1 mm (5.2 in)

The wettest day on record for each calendar month at Guildford Post Office. The most was 132.1 mm (5.2 in) on 10 June 1920.

Record daily precipitation for each month at Guildford Post Office
Month	Record daily precipitation (mm)	Date
Jan	55.4 mm (2.2 in)	15 January 1915
Feb	36.6 mm (1.4 in)	26 February 1915
Mar	112.8 mm (4.4 in)	9 March 1934
Apr	64.0 mm (2.5 in)	16 April 1926
May	82.6 mm (3.3 in)	4 May 1923
Jun	132.1 mm (5.2 in)	10 June 1920
Jul	59.7 mm (2.4 in)	20 July 1926
Aug	53.8 mm (2.1 in)	14 August 1945
Sep	38.6 mm (1.5 in)	8 September 1921
Oct	41.7 mm (1.6 in)	3 October 1933
Nov	39.4 mm (1.6 in)	15 November 1948
Dec	33.3 mm (1.3 in)	1 December 1913

Latest Records

Latest records at Guildford Post Office
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1954	Guildford Post Office, AU	daily rain	28.4 mm (1.1 in)	4.5 mm (0.18 in)	33 years	21 of 100 (Routine)
23 May 1954	Guildford Post Office, AU	daily rain	40.4 mm (1.6 in)	9.4 mm (0.37 in)	20 years	21 of 100 (Routine)
14 January 1954	Guildford Post Office, AU	daily rain	3.6 mm (0.14 in)	1.8 mm (0.07 in)	42 years	20 of 100 (Routine)
16 November 1953	Guildford Post Office, AU	daily rain	17.8 mm (0.7 in)	10.2 mm (0.4 in)	12 years	20 of 100 (Routine)
26 October 1953	Guildford Post Office, AU	daily rain (Tie)	6.9 mm (0.27 in)	tie	4 years	2 of 100 (Routine)
19 October 1953	Guildford Post Office, AU	daily rain	15.5 mm (0.6 in)	3.6 mm (0.14 in)	40 years	20 of 100 (Routine)
2 October 1953	Guildford Post Office, AU	daily rain	21.6 mm (0.9 in)	1.5 mm (0.06 in)	14 years	13 of 100 (Routine)
25 September 1953	Guildford Post Office, AU	daily rain	24.9 mm (1.0 in)	11.4 mm (0.4 in)	30 years	20 of 100 (Routine)
31 August 1953	Guildford Post Office, AU	daily rain (Tie)	21.6 mm (0.9 in)	tie	42 years	4 of 100 (Routine)
3 July 1953	Guildford Post Office, AU	daily rain	36.3 mm (1.4 in)	17.8 mm (0.7 in)	22 years	30 of 100 (Routine)
4 June 1953	Guildford Post Office, AU	daily rain	30.2 mm (1.2 in)	0.2 mm (0.01 in)	32 years	16 of 100 (Routine)
24 May 1953	Guildford Post Office, AU	daily rain	30.5 mm (1.2 in)	3.1 mm (0.12 in)	43 years	21 of 100 (Routine)
4 February 1953	Guildford Post Office, AU	daily rain	0.8 mm (0.03 in)	0.3 mm (0.01 in)	29 years	15 of 100 (Routine)
3 February 1953	Guildford Post Office, AU	daily rain	10.4 mm (0.4 in)	10.1 mm (0.4 in)	45 years	20 of 100 (Routine)
2 February 1953	Guildford Post Office, AU	daily rain	23.4 mm (0.9 in)	22.9 mm (0.9 in)	18 years	20 of 100 (Routine)
18 December 1952	Guildford Post Office, AU	daily rain	20.3 mm (0.8 in)	4.8 mm (0.19 in)	16 years	20 of 100 (Routine)
17 December 1952	Guildford Post Office, AU	daily rain	17.8 mm (0.7 in)	16.3 mm (0.6 in)	21 years	20 of 100 (Routine)
18 November 1952	Guildford Post Office, AU	daily rain (Tie)	2.5 mm (0.10 in)	tie	31 years	4 of 100 (Routine)
5 November 1952	Guildford Post Office, AU	daily rain	10.4 mm (0.4 in)	3.8 mm (0.15 in)	18 years	19 of 100 (Routine)
9 October 1952	Guildford Post Office, AU	daily rain	23.6 mm (0.9 in)	11.4 mm (0.4 in)	43 years	20 of 100 (Routine)

Extremes by Year

1877 to 1954

Yearly extremes at Guildford Post Office: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	132.1 mm (5.2 in)	1920	41.7 mm (1.6 in)	62
Wettest five days (Rx5day)	201.5 mm (7.9 in)	1920	83.1 mm (3.3 in)	62
Longest dry spell (CDD)	90 days	1877	42 days	62

Wettest day (Rx1day)

The wettest day of the year at Guildford Post Office, 1877 to 1954. The record is 132.1 mm (5.2 in) in 1920, marked on the chart; the median year is 41.7 mm (1.6 in).

Wettest day (Rx1day) at Guildford Post Office by year
Year	Wettest day (Rx1day)
1877	0.0 mm (0.00 in)
1878	0.0 mm (0.00 in)
1879	0.0 mm (0.00 in)
1882	0.0 mm (0.00 in)
1883	0.0 mm (0.00 in)
1885	0.0 mm (0.00 in)
1886	0.0 mm (0.00 in)
1891	0.0 mm (0.00 in)
1893	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1896	0.0 mm (0.00 in)
1897	0.0 mm (0.00 in)
1899	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1907	51.8 mm (2.0 in)
1908	65.8 mm (2.6 in)
1909	47.8 mm (1.9 in)
1910	38.1 mm (1.5 in)
1911	38.6 mm (1.5 in)
1912	38.1 mm (1.5 in)
1913	38.1 mm (1.5 in)
1914	28.4 mm (1.1 in)
1915	55.4 mm (2.2 in)
1916	41.9 mm (1.6 in)
1917	46.2 mm (1.8 in)
1918	48.3 mm (1.9 in)
1919	50.0 mm (2.0 in)
1920	132.1 mm (5.2 in)
1921	58.4 mm (2.3 in)
1922	47.2 mm (1.9 in)
1923	82.6 mm (3.3 in)
1924	35.3 mm (1.4 in)
1925	41.9 mm (1.6 in)
1926	64.0 mm (2.5 in)
1927	48.5 mm (1.9 in)
1928	51.3 mm (2.0 in)
1929	59.9 mm (2.4 in)
1930	56.6 mm (2.2 in)
1931	45.2 mm (1.8 in)
1932	55.1 mm (2.2 in)
1933	41.7 mm (1.6 in)
1934	112.8 mm (4.4 in)
1935	48.3 mm (1.9 in)
1936	92.7 mm (3.6 in)
1937	50.8 mm (2.0 in)
1938	33.8 mm (1.3 in)
1939	55.9 mm (2.2 in)
1940	47.0 mm (1.9 in)
1941	37.6 mm (1.5 in)
1942	38.9 mm (1.5 in)
1943	40.9 mm (1.6 in)
1944	49.0 mm (1.9 in)
1945	70.1 mm (2.8 in)
1946	40.9 mm (1.6 in)
1947	77.0 mm (3.0 in)
1948	41.1 mm (1.6 in)
1949	28.2 mm (1.1 in)
1950	48.3 mm (1.9 in)
1951	41.1 mm (1.6 in)
1952	39.6 mm (1.6 in)
1953	41.7 mm (1.6 in)
1954	40.4 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Guildford Post Office, 1877 to 1954. The record is 201.5 mm (7.9 in) in 1920, marked on the chart; the median year is 83.1 mm (3.3 in).

Wettest five days (Rx5day) at Guildford Post Office by year
Year	Wettest five days (Rx5day)
1877	0.0 mm (0.00 in)
1878	0.0 mm (0.00 in)
1879	0.0 mm (0.00 in)
1882	0.0 mm (0.00 in)
1883	0.0 mm (0.00 in)
1885	0.0 mm (0.00 in)
1886	0.0 mm (0.00 in)
1891	0.0 mm (0.00 in)
1893	0.0 mm (0.00 in)
1894	0.0 mm (0.00 in)
1896	0.0 mm (0.00 in)
1897	0.0 mm (0.00 in)
1899	0.0 mm (0.00 in)
1903	0.0 mm (0.00 in)
1907	127.5 mm (5.0 in)
1908	79.9 mm (3.1 in)
1909	121.4 mm (4.8 in)
1910	101.6 mm (4.0 in)
1911	103.3 mm (4.1 in)
1912	99.3 mm (3.9 in)
1913	80.8 mm (3.2 in)
1914	68.8 mm (2.7 in)
1915	105.9 mm (4.2 in)
1916	75.9 mm (3.0 in)
1917	94.2 mm (3.7 in)
1918	82.1 mm (3.2 in)
1919	76.8 mm (3.0 in)
1920	201.5 mm (7.9 in)
1921	109.0 mm (4.3 in)
1922	67.9 mm (2.7 in)
1923	116.1 mm (4.6 in)
1924	83.9 mm (3.3 in)
1925	66.1 mm (2.6 in)
1926	132.6 mm (5.2 in)
1927	89.8 mm (3.5 in)
1928	121.2 mm (4.8 in)
1929	122.4 mm (4.8 in)
1930	125.2 mm (4.9 in)
1931	91.2 mm (3.6 in)
1932	117.4 mm (4.6 in)
1933	91.9 mm (3.6 in)
1934	131.8 mm (5.2 in)
1935	89.1 mm (3.5 in)
1936	135.6 mm (5.3 in)
1937	87.9 mm (3.5 in)
1938	85.4 mm (3.4 in)
1939	130.8 mm (5.1 in)
1940	68.9 mm (2.7 in)
1941	66.1 mm (2.6 in)
1942	73.4 mm (2.9 in)
1943	130.5 mm (5.1 in)
1944	67.9 mm (2.7 in)
1945	185.1 mm (7.3 in)
1946	105.2 mm (4.1 in)
1947	143.7 mm (5.7 in)
1948	85.0 mm (3.3 in)
1949	61.8 mm (2.4 in)
1950	82.3 mm (3.2 in)
1951	89.4 mm (3.5 in)
1952	74.6 mm (2.9 in)
1953	69.9 mm (2.8 in)
1954	74.8 mm (2.9 in)

Longest dry spell (CDD)

The longest dry spell of the year at Guildford Post Office, 1877 to 1954. The record is 90 days in 1877, marked on the chart; the median year is 42 days.

Longest dry spell (CDD) at Guildford Post Office by year
Year	Longest dry spell (CDD)
1877	90 days
1878	28 days
1879	28 days
1882	28 days
1883	31 days
1885	59 days
1886	31 days
1891	30 days
1893	31 days
1894	31 days
1896	29 days
1897	31 days
1899	31 days
1903	28 days
1907	60 days
1908	38 days
1909	49 days
1910	70 days
1911	68 days
1912	48 days
1913	59 days
1914	43 days
1915	29 days
1916	37 days
1917	41 days
1918	36 days
1919	32 days
1920	47 days
1921	41 days
1922	25 days
1923	51 days
1924	46 days
1925	35 days
1926	44 days
1927	29 days
1928	56 days
1929	35 days
1930	54 days
1931	61 days
1932	68 days
1933	47 days
1934	39 days
1935	37 days
1936	61 days
1937	41 days
1938	47 days
1939	32 days
1940	30 days
1941	72 days
1942	56 days
1943	35 days
1944	69 days
1945	47 days
1946	61 days
1947	64 days
1948	53 days
1949	42 days
1950	75 days
1951	34 days
1952	40 days
1953	55 days
1954	59 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

47 years, 1907 to 1953

A day with at least 46.2 mm (1.8 in) of rain is expected about once in 2 years. A day with at least 136.8 mm (5.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Guildford Post Office: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	46.2 mm (1.8 in)
5 years	60.6 mm (2.4 in)
10 years	73.1 mm (2.9 in)
25 years	93.6 mm (3.7 in)
50 years	113.0 mm (4.4 in)	Longer than the 47 years of record
100 years	136.8 mm (5.4 in)	Longer than the 47 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, 47 years of values from 1907 to 1953.

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: 132.1 mm (5.2 in) in 1920; 112.8 mm (4.4 in) in 1934; 92.7 mm (3.6 in) in 1936.

Download the Data

Data for Guildford Post Office standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Guildford Post Office 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 2026-10-13 (13 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