Forrest Aero Weather Records (ASN00011004)

Record envelope, standing records and threshold days for Forrest Aero (ASN00011004), Australia, with 66 years of record.

Key Facts for Forrest Aero

Forrest Aero (ASN00011004) is a weather station in Australia at -30.84 latitude and 128.11 longitude, 156 m (512 ft) above sea level.
The station reports from 1930 to 1995, 66 years of record.
1,464 records set at Forrest Aero still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Forrest Aero set a daily record low maximum temperature of 21.7 C (71.1 F) on 7 March 1995.

About the Station

Location: Australia, -30.84 latitude, 128.11 longitude.
Elevation: 156 m (512 ft).
Period of record: 1930 to 1995, 66 years.
Eligible elements: tmax, tmin, 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 Forrest Aero. 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 Forrest Aero, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	49.8 C (121.6 F)	6.6 C (43.9 F)	n/a	n/a
Feb	46.5 C (115.7 F)	6.3 C (43.3 F)	n/a	n/a
Mar	45.3 C (113.5 F)	5.7 C (42.3 F)	n/a	n/a
Apr	40.1 C (104.2 F)	2.3 C (36.1 F)	n/a	n/a
May	36.6 C (97.9 F)	-0.5 C (31.1 F)	n/a	n/a
Jun	31.3 C (88.3 F)	-4.3 C (24.3 F)	n/a	n/a
Jul	29.2 C (84.6 F)	-4.5 C (23.9 F)	n/a	n/a
Aug	34.2 C (93.6 F)	-3.3 C (26.1 F)	n/a	n/a
Sep	38.7 C (101.7 F)	-2.1 C (28.2 F)	n/a	n/a
Oct	43.3 C (109.9 F)	0.9 C (33.6 F)	n/a	n/a
Nov	44.8 C (112.6 F)	2.6 C (36.7 F)	n/a	n/a
Dec	45.6 C (114.1 F)	4.6 C (40.3 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Forrest Aero still stand. 1968 holds the most, with 66.

Standing records at Forrest Aero by the year they were set
Year set	Standing records
1946	35
1947	25
1948	35
1949	28
1950	38
1951	29
1952	29
1953	31
1954	38
1955	32
1956	31
1957	37
1958	18
1959	27
1960	41
1961	25
1962	25
1963	22
1964	35
1965	27
1966	30
1967	36
1968	66
1969	37
1970	43
1971	28
1972	25
1973	23
1974	24
1975	37
1976	28
1977	24
1978	34
1979	26
1980	22
1981	27
1982	28
1983	22
1984	29
1985	23
1986	21
1987	27
1988	29
1989	25
1990	23
1991	23
1992	22
1993	26
1994	42
1995	6

All-Time Record Progression

5 new records

5 all-time records were set at Forrest Aero between 13 January 1969 and 23 January 1982. Each dot is a new record.

When Forrest Aero set new all-time records
Date	Kind	Detail
1969-01-13	Record daily precipitation	Record daily precipitation 71.4 mm (2.8 in)
1976-07-19	Record low minimum temperature	Record low minimum temperature -4.5 C (23.9 F)
1979-01-12	Record high maximum temperature	Record high maximum temperature 48.5 C (119.3 F)
1979-01-13	Record high maximum temperature	Record high maximum temperature 49.8 C (121.6 F)
1982-01-23	Record high minimum temperature	Record high minimum temperature 31.0 C (87.8 F)

Wettest Day of Each Month

Jan: 71.4 mm (2.8 in)

The wettest day on record for each calendar month at Forrest Aero. The most was 71.4 mm (2.8 in) on 13 January 1969.

Record daily precipitation for each month at Forrest Aero
Month	Record daily precipitation (mm)	Date
Jan	71.4 mm (2.8 in)	13 January 1969
Feb	48.8 mm (1.9 in)	16 February 1960
Mar	63.5 mm (2.5 in)	31 March 1931
Apr	55.4 mm (2.2 in)	5 April 1992
May	47.5 mm (1.9 in)	22 May 1969
Jun	47.0 mm (1.9 in)	28 June 1966
Jul	37.3 mm (1.5 in)	12 July 1962
Aug	28.4 mm (1.1 in)	27 August 1990
Sep	29.4 mm (1.2 in)	29 September 1984
Oct	39.1 mm (1.5 in)	14 October 1954
Nov	49.6 mm (2.0 in)	4 November 1980
Dec	48.2 mm (1.9 in)	20 December 1994

Period of Record Coverage

1946 to 1995

50 years of record at Forrest Aero, 1946 to 1995. 1 years have data for under 90 percent of days and are left out of rankings: 1995.

Days with data per year at Forrest Aero
Year	Days with data	Share of year	Complete
1946	331	91%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	365	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	364	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	364	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	362	99%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	364	99%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	78	21%	No

Latest Records

Latest records at Forrest Aero
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 March 1995	Forrest Aero, AU	daily low max	21.7 C (71.1 F)	0.8 C (1.4 F)	8 years	8 of 100 (Routine)
6 March 1995	Forrest Aero, AU	daily low max	20.5 C (68.9 F)	2.1 C (3.8 F)	8 years	10 of 100 (Routine)
5 March 1995	Forrest Aero, AU	daily rain	37.4 mm (1.5 in)	36.6 mm (1.4 in)	2 years	46 of 100 (Notable)
5 March 1995	Forrest Aero, AU	daily low max	20.5 C (68.9 F)	2.0 C (3.6 F)	34 years	18 of 100 (Routine)
4 March 1995	Forrest Aero, AU	daily low max	20.6 C (69.1 F)	0.8 C (1.4 F)	36 years	17 of 100 (Routine)
1 March 1995	Forrest Aero, AU	daily rain	2.6 mm (0.10 in)	1.3 mm (0.05 in)	24 years	14 of 100 (Routine)
4 February 1995	Forrest Aero, AU	daily high min	22.4 C (72.3 F)	0.8 C (1.4 F)	20 years	13 of 100 (Routine)
13 January 1995	Forrest Aero, AU	daily high min	22.9 C (73.2 F)	0.1 C (0.2 F)	16 years	9 of 100 (Routine)
23 December 1994	Forrest Aero, AU	daily low max	20.9 C (69.6 F)	1.0 C (1.8 F)	20 years	11 of 100 (Routine)
20 December 1994	Forrest Aero, AU	monthly rain	48.2 mm (1.9 in)	11.6 mm (0.5 in)	17 years	40 of 100 (Notable)
18 December 1994	Forrest Aero, AU	monthly high min	28.3 C (82.9 F)	1.2 C (2.2 F)	6 years	19 of 100 (Routine)
16 December 1994	Forrest Aero, AU	daily high min	21.2 C (70.2 F)	3.1 C (5.6 F)	4 years	13 of 100 (Routine)
11 December 1994	Forrest Aero, AU	daily high max	44.5 C (112.1 F)	2.9 C (5.2 F)	11 years	12 of 100 (Routine)
4 December 1994	Forrest Aero, AU	daily high max	42.4 C (108.3 F)	0.1 C (0.2 F)	44 years	17 of 100 (Routine)
13 November 1994	Forrest Aero, AU	daily rain	10.2 mm (0.4 in)	2.6 mm (0.10 in)	5 years	10 of 100 (Routine)
12 November 1994	Forrest Aero, AU	daily low max	16.6 C (61.9 F)	2.3 C (4.1 F)	36 years	18 of 100 (Routine)
9 November 1994	Forrest Aero, AU	daily high max	41.4 C (106.5 F)	2.9 C (5.2 F)	25 years	16 of 100 (Routine)
24 October 1994	Forrest Aero, AU	daily rain	5.6 mm (0.22 in)	1.3 mm (0.05 in)	41 years	20 of 100 (Routine)
23 October 1994	Forrest Aero, AU	daily high max	40.5 C (104.9 F)	4.5 C (8.1 F)	12 years	15 of 100 (Routine)
14 October 1994	Forrest Aero, AU	daily high min	21.2 C (70.2 F)	2.7 C (4.9 F)	20 years	17 of 100 (Routine)

Climate Trend

48 complete years, 1947 to 1994

One stripe for each of 48 complete years at Forrest Aero, 1947 to 1994. Blue stripes are years cooler than the station's own mean of 17.7 C (63.9 F); red stripes are warmer. The coolest year was 1960, at 16.5 C (61.6 F), and the warmest was 1991, at 18.8 C (65.8 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Forrest Aero as warming stripes, 1947 to 1994
Year	Annual mean temperature	Difference from the station mean
1947	17.6 C	-0.15 C
1948	17.2 C	-0.56 C
1949	16.7 C	-1.01 C
1950	17.2 C	-0.49 C
1951	17.5 C	-0.23 C
1952	16.6 C	-1.17 C
1953	17.1 C	-0.62 C
1954	17.0 C	-0.71 C
1955	17.1 C	-0.67 C
1956	16.6 C	-1.14 C
1957	17.5 C	-0.22 C
1958	16.8 C	-0.92 C
1959	17.8 C	+0.06 C
1960	16.5 C	-1.26 C
1961	18.3 C	+0.53 C
1962	17.6 C	-0.11 C
1963	18.0 C	+0.22 C
1964	17.3 C	-0.43 C
1965	18.4 C	+0.69 C
1966	17.4 C	-0.36 C
1967	17.3 C	-0.42 C
1968	17.2 C	-0.52 C
1969	18.0 C	+0.30 C
1970	17.7 C	-0.07 C
1971	17.7 C	0.00 C
1972	18.1 C	+0.36 C
1973	18.1 C	+0.41 C
1974	17.6 C	-0.16 C
1975	17.9 C	+0.18 C
1976	17.7 C	-0.03 C
1977	18.5 C	+0.74 C
1978	17.9 C	+0.15 C
1979	18.3 C	+0.57 C
1980	18.7 C	+0.98 C
1981	18.1 C	+0.32 C
1982	18.3 C	+0.59 C
1983	18.3 C	+0.61 C
1984	17.8 C	+0.10 C
1985	18.3 C	+0.56 C
1986	17.7 C	-0.03 C
1987	17.9 C	+0.18 C
1988	18.2 C	+0.50 C
1989	18.0 C	+0.30 C
1990	18.3 C	+0.53 C
1991	18.8 C	+1.04 C
1992	17.6 C	-0.10 C
1993	18.3 C	+0.57 C
1994	18.6 C	+0.91 C

The annual mean temperature here has risen by 0.3 C (0.2 to 0.4) per decade over 1947 to 1994. In Fahrenheit: 0.5 F (0.4 to 0.7) per decade. The slope is a straight line fitted to 48 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Forrest Aero
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.2 to 0.4) per decade	0.5 F (0.4 to 0.7) per decade	1947 to 1994	48	Rise
Mean daily maximum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.6) per decade	1947 to 1994	48	Rise
Mean daily minimum	0.4 C (0.3 to 0.5) per decade	0.7 F (0.5 to 0.9) per decade	1947 to 1994	48	Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1930 to 1995

Yearly extremes at Forrest Aero: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	49.8 C (121.6 F)	1979	44.6 C (112.3 F)	50
Coldest night (TNn)	-4.5 C (23.9 F)	1976	-1.0 C (30.2 F)	50
Wettest day (Rx1day)	71.4 mm (2.8 in)	1969	27.6 mm (1.1 in)	63
Wettest five days (Rx5day)	117.1 mm (4.6 in)	1960	34.4 mm (1.4 in)	63
Longest dry spell (CDD)	131 days	1951	53 days	63

Hottest day (TXx)

The hottest day of the year at Forrest Aero, 1930 to 1995. The record is 49.8 C (121.6 F) in 1979, marked on the chart; the median year is 44.6 C (112.3 F).

Hottest day (TXx) at Forrest Aero by year
Year	Hottest day (TXx)
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	42.6 C (108.7 F)
1947	43.9 C (111.0 F)
1948	44.7 C (112.5 F)
1949	45.6 C (114.1 F)
1950	44.1 C (111.4 F)
1951	44.4 C (111.9 F)
1952	44.3 C (111.7 F)
1953	43.8 C (110.8 F)
1954	44.3 C (111.7 F)
1955	43.3 C (109.9 F)
1956	41.4 C (106.5 F)
1957	43.2 C (109.8 F)
1958	45.4 C (113.7 F)
1959	45.0 C (113.0 F)
1960	42.9 C (109.2 F)
1961	45.1 C (113.2 F)
1962	44.8 C (112.6 F)
1963	43.2 C (109.8 F)
1964	44.1 C (111.4 F)
1965	43.2 C (109.8 F)
1966	43.4 C (110.1 F)
1967	44.5 C (112.1 F)
1968	45.7 C (114.3 F)
1969	45.2 C (113.4 F)
1970	47.4 C (117.3 F)
1971	47.6 C (117.7 F)
1972	44.4 C (111.9 F)
1973	48.2 C (118.8 F)
1974	40.5 C (104.9 F)
1975	44.4 C (111.9 F)
1976	45.1 C (113.2 F)
1977	46.1 C (115.0 F)
1978	44.9 C (112.8 F)
1979	49.8 C (121.6 F)
1980	45.0 C (113.0 F)
1981	42.0 C (107.6 F)
1982	46.1 C (115.0 F)
1983	46.3 C (115.3 F)
1984	43.9 C (111.0 F)
1985	44.5 C (112.1 F)
1986	45.5 C (113.9 F)
1987	44.8 C (112.6 F)
1988	43.5 C (110.3 F)
1989	45.4 C (113.7 F)
1990	47.6 C (117.7 F)
1991	47.7 C (117.9 F)
1992	46.5 C (115.7 F)
1993	46.6 C (115.9 F)
1994	44.5 C (112.1 F)
1995	42.6 C (108.7 F)

Coldest night (TNn)

The coldest night of the year at Forrest Aero, 1930 to 1995. The record is -4.5 C (23.9 F) in 1976, marked on the chart; the median year is -1.0 C (30.2 F).

Coldest night (TNn) at Forrest Aero by year
Year	Coldest night (TNn)
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	-1.8 C (28.8 F)
1947	-0.4 C (31.3 F)
1948	-0.9 C (30.4 F)
1949	-1.3 C (29.7 F)
1950	-2.3 C (27.9 F)
1951	0.6 C (33.1 F)
1952	-1.7 C (28.9 F)
1953	-0.2 C (31.6 F)
1954	-1.3 C (29.7 F)
1955	0.7 C (33.3 F)
1956	-3.2 C (26.2 F)
1957	-1.1 C (30.0 F)
1958	-2.0 C (28.4 F)
1959	-0.3 C (31.5 F)
1960	-1.4 C (29.5 F)
1961	-4.3 C (24.3 F)
1962	-1.1 C (30.0 F)
1963	-2.8 C (27.0 F)
1964	-1.2 C (29.8 F)
1965	-0.2 C (31.6 F)
1966	-1.2 C (29.8 F)
1967	-3.3 C (26.1 F)
1968	-2.1 C (28.2 F)
1969	-2.6 C (27.3 F)
1970	-2.7 C (27.1 F)
1971	-1.0 C (30.2 F)
1972	-0.1 C (31.8 F)
1973	-0.6 C (30.9 F)
1974	-1.5 C (29.3 F)
1975	-1.8 C (28.8 F)
1976	-4.5 C (23.9 F)
1977	-0.4 C (31.3 F)
1978	0.7 C (33.3 F)
1979	0.4 C (32.7 F)
1980	1.1 C (34.0 F)
1981	-1.0 C (30.2 F)
1982	-0.7 C (30.7 F)
1983	-1.4 C (29.5 F)
1984	-0.9 C (30.4 F)
1985	-0.9 C (30.4 F)
1986	0.7 C (33.3 F)
1987	-1.3 C (29.7 F)
1988	-1.7 C (28.9 F)
1989	-0.5 C (31.1 F)
1990	-0.1 C (31.8 F)
1991	1.8 C (35.2 F)
1992	-0.1 C (31.8 F)
1993	-1.0 C (30.2 F)
1994	0.2 C (32.4 F)
1995	9.6 C (49.3 F)

Wettest day (Rx1day)

The wettest day of the year at Forrest Aero, 1930 to 1995. The record is 71.4 mm (2.8 in) in 1969, marked on the chart; the median year is 27.6 mm (1.1 in).

Wettest day (Rx1day) at Forrest Aero by year
Year	Wettest day (Rx1day)
1930	21.6 mm (0.9 in)
1931	63.5 mm (2.5 in)
1932	21.8 mm (0.9 in)
1933	10.7 mm (0.4 in)
1934	20.3 mm (0.8 in)
1938	13.2 mm (0.5 in)
1939	21.1 mm (0.8 in)
1940	47.5 mm (1.9 in)
1941	25.4 mm (1.0 in)
1942	40.9 mm (1.6 in)
1943	18.5 mm (0.7 in)
1944	39.4 mm (1.6 in)
1945	39.6 mm (1.6 in)
1946	29.2 mm (1.1 in)
1947	24.6 mm (1.0 in)
1948	13.2 mm (0.5 in)
1949	10.4 mm (0.4 in)
1950	20.8 mm (0.8 in)
1951	12.7 mm (0.5 in)
1952	27.9 mm (1.1 in)
1953	18.0 mm (0.7 in)
1954	39.1 mm (1.5 in)
1955	35.6 mm (1.4 in)
1956	20.8 mm (0.8 in)
1957	7.6 mm (0.30 in)
1958	9.1 mm (0.36 in)
1959	10.7 mm (0.4 in)
1960	48.8 mm (1.9 in)
1961	17.0 mm (0.7 in)
1962	37.3 mm (1.5 in)
1963	14.2 mm (0.6 in)
1964	18.0 mm (0.7 in)
1965	21.1 mm (0.8 in)
1966	47.0 mm (1.9 in)
1967	53.1 mm (2.1 in)
1968	40.4 mm (1.6 in)
1969	71.4 mm (2.8 in)
1970	15.2 mm (0.6 in)
1971	10.7 mm (0.4 in)
1972	19.1 mm (0.8 in)
1973	22.4 mm (0.9 in)
1974	40.0 mm (1.6 in)
1975	28.8 mm (1.1 in)
1976	29.2 mm (1.1 in)
1977	36.6 mm (1.4 in)
1978	11.0 mm (0.4 in)
1979	13.4 mm (0.5 in)
1980	49.6 mm (2.0 in)
1981	35.4 mm (1.4 in)
1982	12.8 mm (0.5 in)
1983	49.8 mm (2.0 in)
1984	29.4 mm (1.2 in)
1985	22.2 mm (0.9 in)
1986	28.0 mm (1.1 in)
1987	34.2 mm (1.3 in)
1988	33.8 mm (1.3 in)
1989	16.2 mm (0.6 in)
1990	28.4 mm (1.1 in)
1991	27.6 mm (1.1 in)
1992	55.4 mm (2.2 in)
1993	27.8 mm (1.1 in)
1994	48.2 mm (1.9 in)
1995	37.4 mm (1.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Forrest Aero, 1930 to 1995. The record is 117.1 mm (4.6 in) in 1960, marked on the chart; the median year is 34.4 mm (1.4 in).

Wettest five days (Rx5day) at Forrest Aero by year
Year	Wettest five days (Rx5day)
1930	26.7 mm (1.1 in)
1931	68.1 mm (2.7 in)
1932	45.1 mm (1.8 in)
1933	10.7 mm (0.4 in)
1934	42.7 mm (1.7 in)
1938	15.7 mm (0.6 in)
1939	30.0 mm (1.2 in)
1940	47.5 mm (1.9 in)
1941	57.9 mm (2.3 in)
1942	81.6 mm (3.2 in)
1943	19.5 mm (0.8 in)
1944	39.9 mm (1.6 in)
1945	47.4 mm (1.9 in)
1946	53.6 mm (2.1 in)
1947	28.4 mm (1.1 in)
1948	13.5 mm (0.5 in)
1949	17.5 mm (0.7 in)
1950	23.1 mm (0.9 in)
1951	22.1 mm (0.9 in)
1952	28.9 mm (1.1 in)
1953	25.4 mm (1.0 in)
1954	47.2 mm (1.9 in)
1955	73.4 mm (2.9 in)
1956	29.0 mm (1.1 in)
1957	9.9 mm (0.39 in)
1958	13.5 mm (0.5 in)
1959	15.0 mm (0.6 in)
1960	117.1 mm (4.6 in)
1961	21.1 mm (0.8 in)
1962	39.1 mm (1.5 in)
1963	14.7 mm (0.6 in)
1964	31.5 mm (1.2 in)
1965	24.1 mm (0.9 in)
1966	70.5 mm (2.8 in)
1967	96.3 mm (3.8 in)
1968	64.8 mm (2.6 in)
1969	73.7 mm (2.9 in)
1970	24.7 mm (1.0 in)
1971	13.1 mm (0.5 in)
1972	31.5 mm (1.2 in)
1973	28.3 mm (1.1 in)
1974	41.2 mm (1.6 in)
1975	51.4 mm (2.0 in)
1976	30.2 mm (1.2 in)
1977	44.6 mm (1.8 in)
1978	19.3 mm (0.8 in)
1979	35.0 mm (1.4 in)
1980	52.6 mm (2.1 in)
1981	64.6 mm (2.5 in)
1982	28.0 mm (1.1 in)
1983	59.4 mm (2.3 in)
1984	68.4 mm (2.7 in)
1985	27.2 mm (1.1 in)
1986	33.0 mm (1.3 in)
1987	34.4 mm (1.4 in)
1988	83.6 mm (3.3 in)
1989	16.8 mm (0.7 in)
1990	32.6 mm (1.3 in)
1991	39.2 mm (1.5 in)
1992	66.8 mm (2.6 in)
1993	44.0 mm (1.7 in)
1994	64.4 mm (2.5 in)
1995	44.0 mm (1.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Forrest Aero, 1930 to 1995. The record is 131 days in 1951, marked on the chart; the median year is 53 days.

Longest dry spell (CDD) at Forrest Aero by year
Year	Longest dry spell (CDD)
1930	42 days
1931	56 days
1932	53 days
1933	46 days
1934	70 days
1938	27 days
1939	64 days
1940	68 days
1941	53 days
1942	39 days
1943	80 days
1944	87 days
1945	59 days
1946	60 days
1947	41 days
1948	52 days
1949	58 days
1950	63 days
1951	131 days
1952	47 days
1953	44 days
1954	75 days
1955	43 days
1956	88 days
1957	31 days
1958	22 days
1959	16 days
1960	28 days
1961	102 days
1962	39 days
1963	63 days
1964	49 days
1965	123 days
1966	45 days
1967	33 days
1968	22 days
1969	44 days
1970	106 days
1971	58 days
1972	71 days
1973	49 days
1974	38 days
1975	41 days
1976	44 days
1977	56 days
1978	63 days
1979	57 days
1980	60 days
1981	61 days
1982	40 days
1983	60 days
1984	45 days
1985	48 days
1986	39 days
1987	36 days
1988	53 days
1989	114 days
1990	56 days
1991	54 days
1992	34 days
1993	52 days
1994	85 days
1995	26 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.

Frost Dates and Growing Season

32 years with a frost

Across 32 years with a frost, the median last spring frost at Forrest Aero falls on 11 August and the median first autumn frost on 1 July, which leaves a median of 328 days between them.

Fitted over all years, the growing season changes by +3.5 days per decade at this station.

Frost dates and growing season at Forrest Aero
Measure	Median, all years	Earliest period	Recent period (1949 to 1992)	Recent against earliest	Fitted trend
Last spring frost	11 August	n/a	11 August	n/a	-0.2 days per decade
First autumn frost	1 July	n/a	1 July	n/a	+3.3 days per decade
Growing days	328 days	n/a	328 days	n/a	+3.5 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

55 years, 1931 to 1994

A day with at least 28.0 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 75.4 mm (3.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Forrest Aero: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	28.0 mm (1.1 in)
5 years	41.2 mm (1.6 in)
10 years	49.7 mm (2.0 in)
25 years	60.3 mm (2.4 in)
50 years	67.9 mm (2.7 in)
100 years	75.4 mm (3.0 in)	Longer than the 55 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, 55 years of values from 1931 to 1994.

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: 71.4 mm (2.8 in) in 1969; 63.5 mm (2.5 in) in 1931; 55.4 mm (2.2 in) in 1992.

Download the Data

Data for Forrest Aero standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Forrest Aero 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 2026-10-14. Last revised 14 October 2026 (2026-10-14).