Alta Floresta (Aero Weather Records (BR000956000)

Record envelope, standing records and threshold days for Alta Floresta (Aero (BR000956000), Brazil, with 42 years of record.

Key Facts for Alta Floresta (Aero

Alta Floresta (Aero (BR000956000) is a weather station in Brazil at -9.87 latitude and -56.10 longitude, 289 m (948 ft) above sea level.
The station reports from 1978 to 2019, 42 years of record.
1,430 records set at Alta Floresta (Aero still stand.
Records are tracked for no element yet: an element needs 30 years of data to be eligible.

About the Station

Location: Brazil, -9.87 latitude, -56.10 longitude.
Elevation: 289 m (948 ft).
Period of record: 1978 to 2019, 42 years.
Eligible elements: none yet.

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 Alta Floresta (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 Alta Floresta (Aero, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	35.3 C (95.5 F)	18.0 C (64.4 F)	n/a	n/a
Feb	35.2 C (95.4 F)	18.9 C (66.0 F)	n/a	n/a
Mar	37.4 C (99.3 F)	18.9 C (66.0 F)	n/a	n/a
Apr	36.3 C (97.3 F)	16.2 C (61.2 F)	n/a	n/a
May	35.5 C (95.9 F)	14.5 C (58.1 F)	n/a	n/a
Jun	38.7 C (101.7 F)	10.8 C (51.4 F)	n/a	n/a
Jul	39.1 C (102.4 F)	9.7 C (49.5 F)	n/a	n/a
Aug	39.8 C (103.6 F)	10.0 C (50.0 F)	n/a	n/a
Sep	38.6 C (101.5 F)	13.4 C (56.1 F)	n/a	n/a
Oct	38.8 C (101.8 F)	18.2 C (64.8 F)	n/a	n/a
Nov	34.8 C (94.6 F)	18.0 C (64.4 F)	n/a	n/a
Dec	34.0 C (93.2 F)	18.0 C (64.4 F)	n/a	n/a

Which Years Hold Standing Records

1,430 standing records

1,430 records at Alta Floresta (Aero still stand. 2008 holds the most, with 172.

Standing records at Alta Floresta (Aero by the year they were set
Year set	Standing records
1988	17
1989	27
1990	21
1991	18
1992	11
1993	18
1994	15
1995	13
1996	12
1997	9
1998	20
1999	14
2000	34
2001	34
2002	29
2003	9
2004	16
2005	14
2006	23
2007	110
2008	172
2009	70
2010	144
2011	117
2012	118
2013	93
2014	52
2015	37
2016	23
2017	53
2018	51
2019	36

Wettest Day of Each Month

Oct: 279.9 mm (11.0 in)

The wettest day on record for each calendar month at Alta Floresta (Aero. The most was 279.9 mm (11.0 in) on 26 October 1991.

Record daily precipitation for each month at Alta Floresta (Aero
Month	Record daily precipitation (mm)	Date
Jan	182.0 mm (7.2 in)	10 January 1980
Feb	163.1 mm (6.4 in)	4 February 2008
Mar	134.1 mm (5.3 in)	24 March 2018
Apr	223.0 mm (8.8 in)	17 April 1992
May	86.9 mm (3.4 in)	9 May 1990
Jun	55.2 mm (2.2 in)	10 June 1984
Jul	70.1 mm (2.8 in)	14 July 1990
Aug	75.0 mm (3.0 in)	26 August 1986
Sep	135.9 mm (5.4 in)	11 September 2009
Oct	279.9 mm (11.0 in)	26 October 1991
Nov	118.2 mm (4.7 in)	1 November 1980
Dec	242.1 mm (9.5 in)	28 December 1997

Period of Record Coverage

1989 to 2018

12 years of record at Alta Floresta (Aero, 1989 to 2018. 12 years have data for under 90 percent of days and are left out of rankings: 1989, 2006, 2007, 2008, 2009, 2010, 2011, 2012 and others.

Days with data per year at Alta Floresta (Aero
Year	Days with data	Share of year	Complete
1989	1	0%	No
2006	1	0%	No
2007	90	25%	No
2008	169	46%	No
2009	79	22%	No
2010	149	41%	No
2011	142	39%	No
2012	136	37%	No
2013	49	13%	No
2014	17	5%	No
2015	16	4%	No
2018	3	1%	No

Latest Records

No records were set at this station in the latest data.

Extremes by Year

1978 to 2019

Yearly extremes at Alta Floresta (Aero: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.8 C (103.6 F)	2014	37.0 C (98.5 F)	12
Coldest night (TNn)	9.7 C (49.5 F)	1989	14.0 C (57.2 F)	32
Wettest day (Rx1day)	279.9 mm (11.0 in)	1991	107.2 mm (4.2 in)	40
Wettest five days (Rx5day)	285.2 mm (11.2 in)	2008	163.5 mm (6.4 in)	40
Longest dry spell (CDD)	120 days	1995	7 days	40

Hottest day (TXx)

The hottest day of the year at Alta Floresta (Aero, 1978 to 2019. The record is 39.8 C (103.6 F) in 2014, marked on the chart; the median year is 37.0 C (98.5 F).

Hottest day (TXx) at Alta Floresta (Aero by year
Year	Hottest day (TXx)
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	n/a
1989	33.7 C (92.7 F)
1990	n/a
1991	n/a
1992	n/a
1993	n/a
1994	n/a
1995	n/a
1996	n/a
1997	n/a
1998	n/a
1999	n/a
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	33.2 C (91.8 F)
2007	36.4 C (97.5 F)
2008	36.9 C (98.4 F)
2009	36.0 C (96.8 F)
2010	37.0 C (98.6 F)
2011	37.8 C (100.0 F)
2012	38.0 C (100.4 F)
2013	37.4 C (99.3 F)
2014	39.8 C (103.6 F)
2015	39.1 C (102.4 F)
2016	n/a
2017	n/a
2018	34.9 C (94.8 F)
2019	n/a

Coldest night (TNn)

The coldest night of the year at Alta Floresta (Aero, 1978 to 2019. The record is 9.7 C (49.5 F) in 1989, marked on the chart; the median year is 14.0 C (57.2 F).

Coldest night (TNn) at Alta Floresta (Aero by year
Year	Coldest night (TNn)
1978	n/a
1979	n/a
1980	n/a
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	n/a
1987	n/a
1988	13.0 C (55.4 F)
1989	9.7 C (49.5 F)
1990	12.3 C (54.1 F)
1991	14.0 C (57.2 F)
1992	13.4 C (56.1 F)
1993	14.0 C (57.2 F)
1994	10.0 C (50.0 F)
1995	14.2 C (57.6 F)
1996	10.8 C (51.4 F)
1997	14.6 C (58.3 F)
1998	14.4 C (57.9 F)
1999	10.8 C (51.4 F)
2000	11.6 C (52.9 F)
2001	12.0 C (53.6 F)
2002	15.2 C (59.4 F)
2003	14.7 C (58.5 F)
2004	14.0 C (57.2 F)
2005	14.3 C (57.7 F)
2006	14.8 C (58.6 F)
2007	14.1 C (57.4 F)
2008	13.7 C (56.7 F)
2009	17.0 C (62.6 F)
2010	12.0 C (53.6 F)
2011	14.0 C (57.2 F)
2012	15.4 C (59.7 F)
2013	13.0 C (55.4 F)
2014	15.6 C (60.1 F)
2015	14.6 C (58.3 F)
2016	16.5 C (61.7 F)
2017	13.1 C (55.6 F)
2018	14.7 C (58.5 F)
2019	15.7 C (60.3 F)

Wettest day (Rx1day)

The wettest day of the year at Alta Floresta (Aero, 1978 to 2019. The record is 279.9 mm (11.0 in) in 1991, marked on the chart; the median year is 107.2 mm (4.2 in).

Wettest day (Rx1day) at Alta Floresta (Aero by year
Year	Wettest day (Rx1day)
1978	55.6 mm (2.2 in)
1979	84.0 mm (3.3 in)
1980	182.0 mm (7.2 in)
1981	147.0 mm (5.8 in)
1982	81.2 mm (3.2 in)
1983	89.6 mm (3.5 in)
1984	63.0 mm (2.5 in)
1985	98.6 mm (3.9 in)
1986	84.0 mm (3.3 in)
1987	108.3 mm (4.3 in)
1988	80.4 mm (3.2 in)
1989	146.7 mm (5.8 in)
1990	106.0 mm (4.2 in)
1991	279.9 mm (11.0 in)
1992	223.0 mm (8.8 in)
1993	121.8 mm (4.8 in)
1994	134.5 mm (5.3 in)
1995	125.5 mm (4.9 in)
1996	80.8 mm (3.2 in)
1997	242.1 mm (9.5 in)
1998	103.9 mm (4.1 in)
1999	91.9 mm (3.6 in)
2000	127.0 mm (5.0 in)
2001	48.0 mm (1.9 in)
2002	57.9 mm (2.3 in)
2003	n/a
2004	n/a
2005	102.1 mm (4.0 in)
2006	130.0 mm (5.1 in)
2007	71.9 mm (2.8 in)
2008	163.1 mm (6.4 in)
2009	135.9 mm (5.4 in)
2010	87.1 mm (3.4 in)
2011	112.0 mm (4.4 in)
2012	124.0 mm (4.9 in)
2013	102.1 mm (4.0 in)
2014	118.1 mm (4.6 in)
2015	78.0 mm (3.1 in)
2016	75.9 mm (3.0 in)
2017	111.0 mm (4.4 in)
2018	134.1 mm (5.3 in)
2019	116.1 mm (4.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Alta Floresta (Aero, 1978 to 2019. The record is 285.2 mm (11.2 in) in 2008, marked on the chart; the median year is 163.5 mm (6.4 in).

Wettest five days (Rx5day) at Alta Floresta (Aero by year
Year	Wettest five days (Rx5day)
1978	144.6 mm (5.7 in)
1979	183.4 mm (7.2 in)
1980	232.8 mm (9.2 in)
1981	232.0 mm (9.1 in)
1982	165.0 mm (6.5 in)
1983	157.8 mm (6.2 in)
1984	124.8 mm (4.9 in)
1985	150.0 mm (5.9 in)
1986	109.0 mm (4.3 in)
1987	148.6 mm (5.9 in)
1988	171.6 mm (6.8 in)
1989	185.4 mm (7.3 in)
1990	156.8 mm (6.2 in)
1991	167.9 mm (6.6 in)
1992	232.9 mm (9.2 in)
1993	165.6 mm (6.5 in)
1994	172.6 mm (6.8 in)
1995	212.2 mm (8.4 in)
1996	184.3 mm (7.3 in)
1997	192.1 mm (7.6 in)
1998	153.5 mm (6.0 in)
1999	111.0 mm (4.4 in)
2000	169.2 mm (6.7 in)
2001	101.1 mm (4.0 in)
2002	130.8 mm (5.1 in)
2003	n/a
2004	n/a
2005	86.1 mm (3.4 in)
2006	154.1 mm (6.1 in)
2007	151.2 mm (6.0 in)
2008	285.2 mm (11.2 in)
2009	205.9 mm (8.1 in)
2010	162.0 mm (6.4 in)
2011	223.5 mm (8.8 in)
2012	256.2 mm (10.1 in)
2013	155.0 mm (6.1 in)
2014	176.8 mm (7.0 in)
2015	125.0 mm (4.9 in)
2016	139.2 mm (5.5 in)
2017	154.5 mm (6.1 in)
2018	162.0 mm (6.4 in)
2019	196.9 mm (7.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Alta Floresta (Aero, 1978 to 2019. The record is 120 days in 1995, marked on the chart; the median year is 7 days.

Longest dry spell (CDD) at Alta Floresta (Aero by year
Year	Longest dry spell (CDD)
1978	49 days
1979	55 days
1980	92 days
1981	81 days
1982	39 days
1983	50 days
1984	71 days
1985	50 days
1986	32 days
1987	108 days
1988	101 days
1989	34 days
1990	49 days
1991	7 days
1992	9 days
1993	71 days
1994	38 days
1995	120 days
1996	78 days
1997	85 days
1998	3 days
1999	3 days
2000	6 days
2001	5 days
2002	3 days
2003	n/a
2004	n/a
2005	2 days
2006	4 days
2007	3 days
2008	3 days
2009	4 days
2010	4 days
2011	4 days
2012	3 days
2013	3 days
2014	3 days
2015	2 days
2016	4 days
2017	2 days
2018	5 days
2019	3 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.

Download the Data

Data for Alta Floresta (Aero standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Alta Floresta (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 2026-10-17 (17 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).