Bitam Weather Records (GB000004510)

Record envelope, standing records and threshold days for Bitam (GB000004510), Gabon, with 60 years of record.

Key Facts for Bitam

Bitam (GB000004510) is a weather station in Gabon at 2.08 latitude and 11.48 longitude, 599 m (1,965 ft) above sea level.
The station reports from 1954 to 2013, 60 years of record.
1,464 records set at Bitam still stand.
Records are tracked for tmax, tmin: an element needs 30 years of data to be eligible.
Bitam set a daily record high minimum temperature of 22.5 C (72.5 F) on 28 March 2013.

About the Station

Location: Gabon, 2.08 latitude, 11.48 longitude.
Elevation: 599 m (1,965 ft).
Period of record: 1954 to 2013, 60 years.
Eligible elements: tmax, tmin.

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 Bitam. 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 Bitam, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	38.5 C (101.3 F)	14.0 C (57.2 F)	n/a	n/a
Feb	40.5 C (104.9 F)	13.2 C (55.8 F)	n/a	n/a
Mar	37.0 C (98.6 F)	12.0 C (53.6 F)	n/a	n/a
Apr	38.0 C (100.4 F)	14.4 C (57.9 F)	n/a	n/a
May	38.4 C (101.1 F)	16.0 C (60.8 F)	n/a	n/a
Jun	38.5 C (101.3 F)	15.5 C (59.9 F)	n/a	n/a
Jul	32.3 C (90.1 F)	13.5 C (56.3 F)	n/a	n/a
Aug	38.0 C (100.4 F)	14.8 C (58.6 F)	n/a	n/a
Sep	33.1 C (91.6 F)	16.2 C (61.2 F)	n/a	n/a
Oct	36.0 C (96.8 F)	17.0 C (62.6 F)	n/a	n/a
Nov	35.5 C (95.9 F)	13.5 C (56.3 F)	n/a	n/a
Dec	35.0 C (95.0 F)	14.5 C (58.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Bitam still stand. 2003 holds the most, with 102.

Standing records at Bitam by the year they were set
Year set	Standing records
1954	47
1955	36
1956	34
1957	30
1958	29
1959	12
1960	18
1961	21
1962	17
1963	20
1964	24
1965	30
1967	32
1968	24
1969	26
1970	20
1971	57
1972	33
1973	27
1974	30
1975	32
1976	30
1977	13
1978	16
1979	24
1980	19
1981	10
1982	9
1983	24
1984	9
1985	7
1986	17
1987	27
1988	11
1989	6
1990	7
1991	1
1992	20
1993	25
1994	6
1995	18
1996	11
1997	13
1998	84
1999	9
2000	4
2001	21
2002	60
2003	102
2004	78
2005	73
2006	17
2007	34
2008	15
2009	13
2010	14
2011	16
2013	2

All-Time Record Progression

6 new records

6 all-time records were set at Bitam between 26 February 1988 and 22 May 1998. Each dot is a new record.

When Bitam set new all-time records
Date	Kind	Detail
1988-02-26	Record high minimum temperature	Record high minimum temperature 23.5 C (74.3 F)
1992-02-12	Record low minimum temperature	Record low minimum temperature 13.2 C (55.8 F)
1993-03-03	Record low minimum temperature	Record low minimum temperature 12.0 C (53.6 F)
1998-02-03	Record high minimum temperature	Record high minimum temperature 24.0 C (75.2 F)
1998-02-04	Record high minimum temperature	Record high minimum temperature 24.1 C (75.4 F)
1998-05-22	Record high minimum temperature	Record high minimum temperature 24.6 C (76.3 F)

Wettest Day of Each Month

Sep: 318.0 mm (12.5 in)

The wettest day on record for each calendar month at Bitam. The most was 318.0 mm (12.5 in) on 23 September 1992.

Record daily precipitation for each month at Bitam
Month	Record daily precipitation (mm)	Date
Jan	81.2 mm (3.2 in)	12 January 1973
Feb	52.2 mm (2.1 in)	3 February 1975
Mar	96.3 mm (3.8 in)	31 March 1962
Apr	132.6 mm (5.2 in)	16 April 1969
May	120.4 mm (4.7 in)	10 May 1962
Jun	143.0 mm (5.6 in)	8 June 2007
Jul	112.0 mm (4.4 in)	6 July 2010
Aug	196.1 mm (7.7 in)	17 August 1985
Sep	318.0 mm (12.5 in)	23 September 1992
Oct	100.2 mm (3.9 in)	25 October 1964
Nov	106.9 mm (4.2 in)	10 November 1990
Dec	140.0 mm (5.5 in)	2 December 1984

Period of Record Coverage

1954 to 2011

57 years of record at Bitam, 1954 to 2011. 33 years have data for under 90 percent of days and are left out of rankings: 1959, 1960, 1981, 1982, 1983, 1984, 1985, 1986 and others.

Days with data per year at Bitam
Year	Days with data	Share of year	Complete
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	151	41%	No
1960	275	75%	No
1961	365	100%	Yes
1962	365	100%	Yes
1963	363	99%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	341	93%	Yes
1977	351	96%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	365	100%	Yes
1981	187	51%	No
1982	74	20%	No
1983	175	48%	No
1984	203	55%	No
1985	188	52%	No
1986	251	69%	No
1987	233	64%	No
1988	143	39%	No
1989	98	27%	No
1990	110	30%	No
1991	29	8%	No
1992	233	64%	No
1993	208	57%	No
1994	204	56%	No
1995	121	33%	No
1996	88	24%	No
1997	127	35%	No
1998	261	72%	No
1999	61	17%	No
2000	1	0%	No
2001	64	18%	No
2002	227	62%	No
2003	302	83%	No
2004	237	65%	No
2005	171	47%	No
2006	176	48%	No
2007	141	39%	No
2008	176	48%	No
2009	135	37%	No
2010	125	34%	No
2011	65	18%	No

Latest Records

Latest records at Bitam
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 March 2013	Bitam, GA	daily high min	22.5 C (72.5 F)	0.1 C (0.2 F)	55 years	22 of 100 (Routine)
8 March 2013	Bitam, GA	daily high min	22.5 C (72.5 F)	0.3 C (0.5 F)	26 years	15 of 100 (Routine)
12 February 2013	Bitam, GA	daily high min (Tie)	22.0 C (71.6 F)	tie	55 years	5 of 100 (Routine)
5 February 2013	Bitam, GA	daily high min (Tie)	22.5 C (72.5 F)	tie	8 years	2 of 100 (Routine)
26 October 2011	Bitam, GA	daily low min	17.5 C (63.5 F)	0.5 C (0.9 F)	41 years	22 of 100 (Routine)
19 October 2011	Bitam, GA	daily high min	22.0 C (71.6 F)	0.5 C (0.9 F)	5 years	11 of 100 (Routine)
14 July 2011	Bitam, GA	daily low min	17.0 C (62.6 F)	1.0 C (1.8 F)	34 years	24 of 100 (Routine)
13 July 2011	Bitam, GA	daily low min	17.0 C (62.6 F)	1.1 C (2.0 F)	28 years	23 of 100 (Routine)
24 June 2011	Bitam, GA	daily low min	16.5 C (61.7 F)	1.5 C (2.7 F)	34 years	29 of 100 (Routine)
23 June 2011	Bitam, GA	daily low min	16.0 C (60.8 F)	2.2 C (4.0 F)	36 years	37 of 100 (Notable)
16 May 2011	Bitam, GA	daily low min	17.5 C (63.5 F)	0.3 C (0.5 F)	36 years	18 of 100 (Routine)
6 May 2011	Bitam, GA	daily high min (Tie)	22.5 C (72.5 F)	tie	12 years	2 of 100 (Routine)
30 April 2011	Bitam, GA	daily high min	21.8 C (71.2 F)	0.1 C (0.2 F)	12 years	8 of 100 (Routine)
13 April 2011	Bitam, GA	daily low min (Tie)	18.0 C (64.4 F)	tie	56 years	5 of 100 (Routine)
31 March 2011	Bitam, GA	daily low min (Tie)	18.0 C (64.4 F)	tie	40 years	4 of 100 (Routine)
11 March 2011	Bitam, GA	daily low min	17.0 C (62.6 F)	0.6 C (1.1 F)	53 years	25 of 100 (Routine)
5 March 2011	Bitam, GA	daily high max	33.8 C (92.8 F)	0.2 C (0.4 F)	4 years	6 of 100 (Routine)
17 February 2011	Bitam, GA	daily low min	17.0 C (62.6 F)	0.3 C (0.5 F)	39 years	18 of 100 (Routine)
15 February 2011	Bitam, GA	daily low min	16.5 C (61.7 F)	0.5 C (0.9 F)	48 years	22 of 100 (Routine)
8 February 2011	Bitam, GA	daily low min	16.5 C (61.7 F)	1.3 C (2.3 F)	55 years	30 of 100 (Routine)

Climate Trend

22 complete years, 1954 to 1980

One stripe for each of 22 complete years at Bitam, 1954 to 1980. Blue stripes are years cooler than the station's own mean of 24.2 C (75.6 F); red stripes are warmer. The coolest year was 1956, at 23.8 C (74.8 F), and the warmest was 1963, at 24.7 C (76.5 F). The strongest colour marks a difference of 0.6 C (1.1 F).

Annual mean temperature at Bitam as warming stripes, 1954 to 1980
Year	Annual mean temperature	Difference from the station mean
1954	24.0 C	-0.25 C
1955	23.8 C	-0.46 C
1956	23.8 C	-0.47 C
1957	24.2 C	+0.02 C
1958	24.6 C	+0.33 C
1961	24.2 C	-0.07 C
1962	24.5 C	+0.31 C
1963	24.7 C	+0.50 C
1964	24.4 C	+0.14 C
1965	23.9 C	-0.29 C
1967	24.3 C	+0.08 C
1968	24.2 C	-0.03 C
1969	24.5 C	+0.24 C
1970	24.4 C	+0.16 C
1971	23.8 C	-0.42 C
1972	24.2 C	-0.07 C
1973	24.4 C	+0.14 C
1974	23.8 C	-0.39 C
1975	23.9 C	-0.37 C
1978	24.4 C	+0.16 C
1979	24.6 C	+0.33 C
1980	24.6 C	+0.38 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1954 to 2013

Yearly extremes at Bitam: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.5 C (104.9 F)	1982	33.7 C (92.7 F)	57
Coldest night (TNn)	12.0 C (53.6 F)	1993	16.4 C (61.5 F)	58
Wettest day (Rx1day)	318.0 mm (12.5 in)	1992	81.2 mm (3.2 in)	57
Wettest five days (Rx5day)	255.5 mm (10.1 in)	1954	101.2 mm (4.0 in)	55
Longest dry spell (CDD)	50 days	1958	4 days	57

Hottest day (TXx)

The hottest day of the year at Bitam, 1954 to 2013. The record is 40.5 C (104.9 F) in 1982, marked on the chart; the median year is 33.7 C (92.7 F).

Hottest day (TXx) at Bitam by year
Year	Hottest day (TXx)
1954	32.6 C (90.7 F)
1955	32.2 C (90.0 F)
1956	32.8 C (91.0 F)
1957	32.9 C (91.2 F)
1958	33.0 C (91.4 F)
1959	34.6 C (94.3 F)
1960	32.8 C (91.0 F)
1961	32.6 C (90.7 F)
1962	33.3 C (91.9 F)
1963	33.2 C (91.8 F)
1964	33.8 C (92.8 F)
1965	32.6 C (90.7 F)
1967	33.2 C (91.8 F)
1968	33.0 C (91.4 F)
1969	36.0 C (96.8 F)
1970	33.2 C (91.8 F)
1971	33.2 C (91.8 F)
1972	32.8 C (91.0 F)
1973	35.4 C (95.7 F)
1974	33.1 C (91.6 F)
1975	36.0 C (96.8 F)
1976	32.0 C (89.6 F)
1977	38.0 C (100.4 F)
1978	33.4 C (92.1 F)
1979	33.2 C (91.8 F)
1980	33.7 C (92.7 F)
1981	37.0 C (98.6 F)
1982	40.5 C (104.9 F)
1983	35.2 C (95.4 F)
1984	34.0 C (93.2 F)
1985	32.0 C (89.6 F)
1986	34.4 C (93.9 F)
1987	34.0 C (93.2 F)
1988	34.6 C (94.3 F)
1989	32.8 C (91.0 F)
1990	38.4 C (101.1 F)
1991	31.2 C (88.2 F)
1992	34.6 C (94.3 F)
1993	38.5 C (101.3 F)
1994	38.0 C (100.4 F)
1995	35.2 C (95.4 F)
1996	32.0 C (89.6 F)
1997	33.2 C (91.8 F)
1998	34.8 C (94.6 F)
1999	33.5 C (92.3 F)
2000	31.8 C (89.2 F)
2001	35.0 C (95.0 F)
2002	35.5 C (95.9 F)
2003	38.5 C (101.3 F)
2004	35.8 C (96.4 F)
2005	36.6 C (97.9 F)
2006	33.6 C (92.5 F)
2007	35.0 C (95.0 F)
2008	33.0 C (91.4 F)
2009	33.8 C (92.8 F)
2010	33.8 C (92.8 F)
2011	33.8 C (92.8 F)
2013	n/a

Coldest night (TNn)

The coldest night of the year at Bitam, 1954 to 2013. The record is 12.0 C (53.6 F) in 1993, marked on the chart; the median year is 16.4 C (61.5 F).

Coldest night (TNn) at Bitam by year
Year	Coldest night (TNn)
1954	13.5 C (56.3 F)
1955	15.8 C (60.4 F)
1956	16.0 C (60.8 F)
1957	15.8 C (60.4 F)
1958	15.0 C (59.0 F)
1959	16.0 C (60.8 F)
1960	16.8 C (62.2 F)
1961	16.8 C (62.2 F)
1962	17.0 C (62.6 F)
1963	17.0 C (62.6 F)
1964	16.0 C (60.8 F)
1965	15.7 C (60.3 F)
1967	16.0 C (60.8 F)
1968	16.2 C (61.2 F)
1969	16.0 C (60.8 F)
1970	16.5 C (61.7 F)
1971	14.4 C (57.9 F)
1972	16.0 C (60.8 F)
1973	17.0 C (62.6 F)
1974	15.5 C (59.9 F)
1975	15.9 C (60.6 F)
1976	16.0 C (60.8 F)
1977	16.8 C (62.2 F)
1978	16.3 C (61.3 F)
1979	17.2 C (63.0 F)
1980	17.2 C (63.0 F)
1981	16.0 C (60.8 F)
1982	17.5 C (63.5 F)
1983	15.4 C (59.7 F)
1984	14.6 C (58.3 F)
1985	13.5 C (56.3 F)
1986	16.2 C (61.2 F)
1987	17.5 C (63.5 F)
1988	18.0 C (64.4 F)
1989	16.5 C (61.7 F)
1990	18.0 C (64.4 F)
1991	18.2 C (64.8 F)
1992	13.2 C (55.8 F)
1993	12.0 C (53.6 F)
1994	18.5 C (65.3 F)
1995	17.5 C (63.5 F)
1996	17.0 C (62.6 F)
1997	15.2 C (59.4 F)
1998	18.0 C (64.4 F)
1999	17.2 C (63.0 F)
2000	18.5 C (65.3 F)
2001	16.4 C (61.5 F)
2002	18.4 C (65.1 F)
2003	17.7 C (63.9 F)
2004	18.0 C (64.4 F)
2005	14.0 C (57.2 F)
2006	16.4 C (61.5 F)
2007	14.5 C (58.1 F)
2008	16.5 C (61.7 F)
2009	17.5 C (63.5 F)
2010	17.0 C (62.6 F)
2011	15.2 C (59.4 F)
2013	20.4 C (68.7 F)

Wettest day (Rx1day)

The wettest day of the year at Bitam, 1954 to 2013. The record is 318.0 mm (12.5 in) in 1992, marked on the chart; the median year is 81.2 mm (3.2 in).

Wettest day (Rx1day) at Bitam by year
Year	Wettest day (Rx1day)
1954	82.4 mm (3.2 in)
1955	90.3 mm (3.6 in)
1956	82.6 mm (3.3 in)
1957	72.0 mm (2.8 in)
1958	86.0 mm (3.4 in)
1959	57.0 mm (2.2 in)
1960	103.8 mm (4.1 in)
1961	61.5 mm (2.4 in)
1962	120.4 mm (4.7 in)
1963	100.4 mm (4.0 in)
1964	103.7 mm (4.1 in)
1965	97.0 mm (3.8 in)
1967	98.4 mm (3.9 in)
1968	85.3 mm (3.4 in)
1969	132.6 mm (5.2 in)
1970	71.8 mm (2.8 in)
1971	53.2 mm (2.1 in)
1972	84.0 mm (3.3 in)
1973	81.2 mm (3.2 in)
1974	98.7 mm (3.9 in)
1975	56.0 mm (2.2 in)
1976	56.7 mm (2.2 in)
1977	90.0 mm (3.5 in)
1978	81.9 mm (3.2 in)
1979	77.2 mm (3.0 in)
1980	79.4 mm (3.1 in)
1981	55.1 mm (2.2 in)
1982	47.0 mm (1.9 in)
1983	56.9 mm (2.2 in)
1984	140.0 mm (5.5 in)
1985	196.1 mm (7.7 in)
1986	119.9 mm (4.7 in)
1987	95.0 mm (3.7 in)
1988	39.1 mm (1.5 in)
1989	91.9 mm (3.6 in)
1990	106.9 mm (4.2 in)
1991	40.9 mm (1.6 in)
1992	318.0 mm (12.5 in)
1993	89.9 mm (3.5 in)
1994	42.9 mm (1.7 in)
1995	90.9 mm (3.6 in)
1996	48.0 mm (1.9 in)
1997	54.1 mm (2.1 in)
1998	62.0 mm (2.4 in)
1999	40.9 mm (1.6 in)
2000	91.9 mm (3.6 in)
2001	56.9 mm (2.2 in)
2002	71.9 mm (2.8 in)
2003	48.0 mm (1.9 in)
2004	40.9 mm (1.6 in)
2005	71.1 mm (2.8 in)
2006	78.0 mm (3.1 in)
2007	143.0 mm (5.6 in)
2008	34.0 mm (1.3 in)
2009	64.0 mm (2.5 in)
2010	112.0 mm (4.4 in)
2011	70.1 mm (2.8 in)
2013	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Bitam, 1954 to 2013. The record is 255.5 mm (10.1 in) in 1954, marked on the chart; the median year is 101.2 mm (4.0 in).

Wettest five days (Rx5day) at Bitam by year
Year	Wettest five days (Rx5day)
1954	255.5 mm (10.1 in)
1955	160.1 mm (6.3 in)
1956	163.5 mm (6.4 in)
1957	129.4 mm (5.1 in)
1958	141.3 mm (5.6 in)
1959	88.8 mm (3.5 in)
1960	192.3 mm (7.6 in)
1961	93.2 mm (3.7 in)
1962	137.9 mm (5.4 in)
1963	139.4 mm (5.5 in)
1964	212.9 mm (8.4 in)
1965	171.1 mm (6.7 in)
1967	158.5 mm (6.2 in)
1968	113.2 mm (4.5 in)
1969	158.3 mm (6.2 in)
1970	156.0 mm (6.1 in)
1971	135.8 mm (5.3 in)
1972	120.8 mm (4.8 in)
1973	113.4 mm (4.5 in)
1974	162.4 mm (6.4 in)
1975	92.4 mm (3.6 in)
1976	91.9 mm (3.6 in)
1977	126.8 mm (5.0 in)
1978	136.1 mm (5.4 in)
1979	128.4 mm (5.1 in)
1980	101.2 mm (4.0 in)
1981	99.1 mm (3.9 in)
1982	73.0 mm (2.9 in)
1983	64.7 mm (2.5 in)
1984	166.2 mm (6.5 in)
1985	29.0 mm (1.1 in)
1986	83.3 mm (3.3 in)
1987	96.0 mm (3.8 in)
1988	67.0 mm (2.6 in)
1989	n/a
1990	166.9 mm (6.6 in)
1991	5.1 mm (0.20 in)
1992	115.0 mm (4.5 in)
1993	119.2 mm (4.7 in)
1994	57.2 mm (2.3 in)
1995	29.0 mm (1.1 in)
1996	62.0 mm (2.4 in)
1997	31.4 mm (1.2 in)
1998	129.8 mm (5.1 in)
1999	59.1 mm (2.3 in)
2000	22.6 mm (0.9 in)
2001	134.1 mm (5.3 in)
2002	79.0 mm (3.1 in)
2003	93.0 mm (3.7 in)
2004	72.9 mm (2.9 in)
2005	81.0 mm (3.2 in)
2006	76.2 mm (3.0 in)
2007	47.0 mm (1.9 in)
2008	79.0 mm (3.1 in)
2009	37.8 mm (1.5 in)
2010	n/a
2011	38.1 mm (1.5 in)
2013	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Bitam, 1954 to 2013. The record is 50 days in 1958, marked on the chart; the median year is 4 days.

Longest dry spell (CDD) at Bitam by year
Year	Longest dry spell (CDD)
1954	36 days
1955	22 days
1956	26 days
1957	28 days
1958	50 days
1959	14 days
1960	27 days
1961	28 days
1962	34 days
1963	18 days
1964	39 days
1965	29 days
1967	18 days
1968	31 days
1969	20 days
1970	23 days
1971	26 days
1972	34 days
1973	17 days
1974	29 days
1975	50 days
1976	28 days
1977	34 days
1978	38 days
1979	20 days
1980	24 days
1981	8 days
1982	2 days
1983	2 days
1984	3 days
1985	2 days
1986	4 days
1987	3 days
1988	3 days
1989	1 day
1990	3 days
1991	2 days
1992	3 days
1993	3 days
1994	3 days
1995	2 days
1996	2 days
1997	3 days
1998	3 days
1999	3 days
2000	6 days
2001	2 days
2002	3 days
2003	3 days
2004	2 days
2005	1 day
2006	2 days
2007	1 day
2008	2 days
2009	2 days
2010	1 day
2011	1 day
2013	n/a

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 Bitam standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bitam 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).