Serowe Weather Records (BC008033530)

Record envelope, standing records and threshold days for Serowe (BC008033530), Botswana, with 68 years of record.

Key Facts for Serowe

Serowe (BC008033530) is a weather station in Botswana at -22.38 latitude and 26.70 longitude, 1,140 m (3,740 ft) above sea level.
The station reports from 1921 to 1988, 68 years of record.
0 records set at Serowe still stand.
Records are tracked for prcp: an element needs 30 years of data to be eligible.
Serowe set a daily record precipitation of 11.0 mm (0.4 in) on 20 October 1988.

About the Station

Location: Botswana, -22.38 latitude, 26.70 longitude.
Elevation: 1,140 m (3,740 ft).
Period of record: 1921 to 1988, 68 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 Serowe. 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 Serowe, 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 Serowe still stand.

Wettest Day of Each Month

Dec: 147.3 mm (5.8 in)

The wettest day on record for each calendar month at Serowe. The most was 147.3 mm (5.8 in) on 4 December 1950.

Record daily precipitation for each month at Serowe
Month	Record daily precipitation (mm)	Date
Jan	102.4 mm (4.0 in)	20 January 1949
Feb	108.4 mm (4.3 in)	11 February 1988
Mar	143.0 mm (5.6 in)	12 March 1969
Apr	75.0 mm (3.0 in)	24 April 1988
May	45.0 mm (1.8 in)	12 May 1955
Jun	18.8 mm (0.7 in)	17 June 1940
Jul	17.0 mm (0.7 in)	3 July 1957
Aug	22.4 mm (0.9 in)	12 August 1928
Sep	29.5 mm (1.2 in)	25 September 1977
Oct	82.5 mm (3.2 in)	19 October 1982
Nov	81.0 mm (3.2 in)	28 November 1986
Dec	147.3 mm (5.8 in)	4 December 1950

Latest Records

Latest records at Serowe
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 October 1988	Serowe, BW	daily rain	11.0 mm (0.4 in)	0.8 mm (0.03 in)	64 years	20 of 100 (Routine)
1 September 1988	Serowe, BW	daily rain	9.2 mm (0.36 in)	9.2 mm (0.36 in)	67 years	20 of 100 (Routine)
24 April 1988	Serowe, BW	monthly rain	75.0 mm (3.0 in)	14.0 mm (0.6 in)	56 years	44 of 100 (Notable)
9 March 1988	Serowe, BW	daily rain	90.8 mm (3.6 in)	56.8 mm (2.2 in)	29 years	49 of 100 (Notable)
26 February 1988	Serowe, BW	daily rain	47.0 mm (1.9 in)	16.8 mm (0.7 in)	1 year	16 of 100 (Routine)
14 February 1988	Serowe, BW	daily rain	75.0 mm (3.0 in)	19.9 mm (0.8 in)	52 years	33 of 100 (Routine)
11 February 1988	Serowe, BW	monthly rain	108.4 mm (4.3 in)	13.4 mm (0.5 in)	33 years	33 of 100 (Routine)
10 February 1988	Serowe, BW	daily rain	44.6 mm (1.8 in)	20.4 mm (0.8 in)	21 years	25 of 100 (Routine)
22 January 1988	Serowe, BW	daily rain	43.0 mm (1.7 in)	4.0 mm (0.16 in)	16 years	12 of 100 (Routine)
4 January 1988	Serowe, BW	daily rain	18.0 mm (0.7 in)	1.0 mm (0.04 in)	33 years	16 of 100 (Routine)
23 December 1987	Serowe, BW	daily rain	44.0 mm (1.7 in)	1.0 mm (0.04 in)	5 years	7 of 100 (Routine)
30 November 1987	Serowe, BW	daily rain	60.0 mm (2.4 in)	6.1 mm (0.24 in)	33 years	20 of 100 (Routine)
29 November 1987	Serowe, BW	daily rain	40.0 mm (1.6 in)	9.6 mm (0.38 in)	0 years	13 of 100 (Routine)
6 September 1987	Serowe, BW	daily rain	15.0 mm (0.6 in)	4.6 mm (0.18 in)	61 years	20 of 100 (Routine)
14 April 1987	Serowe, BW	daily rain	14.4 mm (0.6 in)	1.9 mm (0.07 in)	4 years	8 of 100 (Routine)
23 January 1987	Serowe, BW	daily rain	55.0 mm (2.2 in)	6.5 mm (0.26 in)	8 years	12 of 100 (Routine)
29 November 1986	Serowe, BW	daily rain	30.4 mm (1.2 in)	6.3 mm (0.25 in)	52 years	26 of 100 (Routine)
28 November 1986	Serowe, BW	monthly rain	81.0 mm (3.2 in)	5.0 mm (0.20 in)	64 years	39 of 100 (Notable)
31 October 1986	Serowe, BW	daily rain	15.2 mm (0.6 in)	7.2 mm (0.28 in)	0 years	12 of 100 (Routine)
29 September 1986	Serowe, BW	daily rain	14.2 mm (0.6 in)	7.2 mm (0.28 in)	24 years	20 of 100 (Routine)

Extremes by Year

1921 to 1988

Yearly extremes at Serowe: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Wettest day (Rx1day)	147.3 mm (5.8 in)	1950	59.0 mm (2.3 in)	68
Wettest five days (Rx5day)	242.2 mm (9.5 in)	1967	99.0 mm (3.9 in)	68
Longest dry spell (CDD)	263 days	1981	146 days	68

Wettest day (Rx1day)

The wettest day of the year at Serowe, 1921 to 1988. The record is 147.3 mm (5.8 in) in 1950, marked on the chart; the median year is 59.0 mm (2.3 in).

Wettest day (Rx1day) at Serowe by year
Year	Wettest day (Rx1day)
1921	45.7 mm (1.8 in)
1922	76.0 mm (3.0 in)
1923	90.9 mm (3.6 in)
1924	58.4 mm (2.3 in)
1925	31.8 mm (1.3 in)
1926	82.6 mm (3.3 in)
1927	22.9 mm (0.9 in)
1928	55.9 mm (2.2 in)
1929	31.8 mm (1.3 in)
1930	35.6 mm (1.4 in)
1931	57.2 mm (2.3 in)
1932	61.0 mm (2.4 in)
1933	50.0 mm (2.0 in)
1934	39.9 mm (1.6 in)
1935	25.9 mm (1.0 in)
1936	64.8 mm (2.6 in)
1937	47.0 mm (1.9 in)
1938	29.5 mm (1.2 in)
1939	61.5 mm (2.4 in)
1940	70.6 mm (2.8 in)
1941	54.9 mm (2.2 in)
1942	40.9 mm (1.6 in)
1943	51.8 mm (2.0 in)
1944	91.7 mm (3.6 in)
1945	56.1 mm (2.2 in)
1946	50.6 mm (2.0 in)
1947	71.1 mm (2.8 in)
1948	85.9 mm (3.4 in)
1949	102.4 mm (4.0 in)
1950	147.3 mm (5.8 in)
1951	35.8 mm (1.4 in)
1952	61.5 mm (2.4 in)
1953	58.0 mm (2.3 in)
1954	60.0 mm (2.4 in)
1955	95.0 mm (3.7 in)
1956	87.0 mm (3.4 in)
1957	59.5 mm (2.3 in)
1958	66.0 mm (2.6 in)
1959	46.0 mm (1.8 in)
1960	66.5 mm (2.6 in)
1961	64.0 mm (2.5 in)
1962	52.0 mm (2.0 in)
1963	55.0 mm (2.2 in)
1964	56.0 mm (2.2 in)
1965	12.5 mm (0.5 in)
1966	28.2 mm (1.1 in)
1967	78.7 mm (3.1 in)
1968	31.0 mm (1.2 in)
1969	143.0 mm (5.6 in)
1970	69.5 mm (2.7 in)
1971	48.0 mm (1.9 in)
1972	50.0 mm (2.0 in)
1973	105.0 mm (4.1 in)
1974	35.0 mm (1.4 in)
1975	66.5 mm (2.6 in)
1976	80.1 mm (3.2 in)
1977	68.0 mm (2.7 in)
1978	59.5 mm (2.3 in)
1979	32.0 mm (1.3 in)
1980	76.0 mm (3.0 in)
1981	43.0 mm (1.7 in)
1982	82.5 mm (3.2 in)
1983	40.5 mm (1.6 in)
1984	40.0 mm (1.6 in)
1985	64.0 mm (2.5 in)
1986	81.0 mm (3.2 in)
1987	60.0 mm (2.4 in)
1988	108.4 mm (4.3 in)

Wettest five days (Rx5day)

The wettest five days of the year at Serowe, 1921 to 1988. The record is 242.2 mm (9.5 in) in 1967, marked on the chart; the median year is 99.0 mm (3.9 in).

Wettest five days (Rx5day) at Serowe by year
Year	Wettest five days (Rx5day)
1921	88.9 mm (3.5 in)
1922	76.5 mm (3.0 in)
1923	151.3 mm (6.0 in)
1924	73.5 mm (2.9 in)
1925	119.3 mm (4.7 in)
1926	113.0 mm (4.4 in)
1927	40.7 mm (1.6 in)
1928	106.7 mm (4.2 in)
1929	59.9 mm (2.4 in)
1930	64.3 mm (2.5 in)
1931	91.3 mm (3.6 in)
1932	77.5 mm (3.1 in)
1933	85.5 mm (3.4 in)
1934	73.7 mm (2.9 in)
1935	66.8 mm (2.6 in)
1936	72.1 mm (2.8 in)
1937	128.8 mm (5.1 in)
1938	57.2 mm (2.3 in)
1939	109.8 mm (4.3 in)
1940	161.3 mm (6.4 in)
1941	145.8 mm (5.7 in)
1942	82.4 mm (3.2 in)
1943	116.5 mm (4.6 in)
1944	156.0 mm (6.1 in)
1945	116.1 mm (4.6 in)
1946	117.6 mm (4.6 in)
1947	153.6 mm (6.0 in)
1948	123.5 mm (4.9 in)
1949	126.8 mm (5.0 in)
1950	155.4 mm (6.1 in)
1951	80.5 mm (3.2 in)
1952	123.0 mm (4.8 in)
1953	91.3 mm (3.6 in)
1954	94.0 mm (3.7 in)
1955	192.5 mm (7.6 in)
1956	145.8 mm (5.7 in)
1957	105.5 mm (4.2 in)
1958	90.5 mm (3.6 in)
1959	91.9 mm (3.6 in)
1960	92.0 mm (3.6 in)
1961	94.0 mm (3.7 in)
1962	61.0 mm (2.4 in)
1963	91.1 mm (3.6 in)
1964	63.5 mm (2.5 in)
1965	23.0 mm (0.9 in)
1966	91.4 mm (3.6 in)
1967	242.2 mm (9.5 in)
1968	65.5 mm (2.6 in)
1969	171.0 mm (6.7 in)
1970	141.5 mm (5.6 in)
1971	135.0 mm (5.3 in)
1972	77.5 mm (3.1 in)
1973	132.0 mm (5.2 in)
1974	113.5 mm (4.5 in)
1975	100.5 mm (4.0 in)
1976	157.3 mm (6.2 in)
1977	122.3 mm (4.8 in)
1978	97.5 mm (3.8 in)
1979	43.2 mm (1.7 in)
1980	106.5 mm (4.2 in)
1981	88.0 mm (3.5 in)
1982	131.5 mm (5.2 in)
1983	72.3 mm (2.8 in)
1984	79.8 mm (3.1 in)
1985	65.0 mm (2.6 in)
1986	146.4 mm (5.8 in)
1987	104.0 mm (4.1 in)
1988	230.0 mm (9.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Serowe, 1921 to 1988. The record is 263 days in 1981, marked on the chart; the median year is 146 days.

Longest dry spell (CDD) at Serowe by year
Year	Longest dry spell (CDD)
1921	40 days
1922	106 days
1923	77 days
1924	148 days
1925	65 days
1926	81 days
1927	161 days
1928	153 days
1929	172 days
1930	197 days
1931	159 days
1932	200 days
1933	159 days
1934	150 days
1935	102 days
1936	132 days
1937	165 days
1938	144 days
1939	68 days
1940	92 days
1941	140 days
1942	69 days
1943	54 days
1944	124 days
1945	167 days
1946	196 days
1947	196 days
1948	118 days
1949	82 days
1950	153 days
1951	93 days
1952	148 days
1953	189 days
1954	135 days
1955	131 days
1956	123 days
1957	95 days
1958	165 days
1959	166 days
1960	73 days
1961	94 days
1962	178 days
1963	105 days
1964	172 days
1965	186 days
1966	162 days
1967	197 days
1968	136 days
1969	131 days
1970	102 days
1971	125 days
1972	146 days
1973	165 days
1974	119 days
1975	146 days
1976	149 days
1977	194 days
1978	147 days
1979	150 days
1980	213 days
1981	263 days
1982	165 days
1983	181 days
1984	88 days
1985	109 days
1986	154 days
1987	144 days
1988	129 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

66 years, 1922 to 1988

A day with at least 58.1 mm (2.3 in) of rain is expected about once in 2 years. A day with at least 139.3 mm (5.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Serowe: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	58.1 mm (2.3 in)
5 years	80.3 mm (3.2 in)
10 years	94.7 mm (3.7 in)
25 years	112.9 mm (4.4 in)
50 years	126.2 mm (5.0 in)
100 years	139.3 mm (5.5 in)	Longer than the 66 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, 66 years of values from 1922 to 1988.

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: 147.3 mm (5.8 in) in 1950; 143.0 mm (5.6 in) in 1969; 108.4 mm (4.3 in) in 1988.

Download the Data

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