Pilot Point Isl du Boi Weather Records (USC00417028)

Record envelope, standing records and threshold days for Pilot Point Isl du Boi (USC00417028), Texas, United States, with 88 years of record.

Key Facts for Pilot Point Isl du Boi

Pilot Point Isl du Boi (USC00417028) is a weather station in Texas, United States at 33.37 latitude and -97.01 longitude, 210 m (690 ft) above sea level.
The station reports from 1916 to 2003, 88 years of record.
1,464 records set at Pilot Point Isl du Boi still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Pilot Point Isl du Boi set a daily record low maximum temperature of 19.4 C (66.9 F) on 14 September 2003.

About the Station

Location: Texas, United States, 33.37 latitude, -97.01 longitude.
Elevation: 210 m (690 ft).
Period of record: 1916 to 2003, 88 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

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 Pilot Point Isl du Boi. 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 Pilot Point Isl du Boi, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.7 C (89.1 F)	-17.2 C (1.0 F)	n/a	n/a
Feb	33.9 C (93.0 F)	-16.1 C (3.0 F)	n/a	n/a
Mar	35.6 C (96.1 F)	-12.2 C (10.0 F)	n/a	n/a
Apr	36.1 C (97.0 F)	-2.2 C (28.0 F)	n/a	n/a
May	39.4 C (102.9 F)	5.0 C (41.0 F)	n/a	n/a
Jun	40.0 C (104.0 F)	9.4 C (48.9 F)	n/a	n/a
Jul	43.9 C (111.0 F)	13.9 C (57.0 F)	n/a	n/a
Aug	43.3 C (109.9 F)	12.8 C (55.0 F)	n/a	n/a
Sep	44.4 C (111.9 F)	4.4 C (39.9 F)	n/a	n/a
Oct	37.2 C (99.0 F)	-4.4 C (24.1 F)	n/a	n/a
Nov	32.2 C (90.0 F)	-9.4 C (15.1 F)	n/a	n/a
Dec	31.1 C (88.0 F)	-18.9 C (-2.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Pilot Point Isl du Boi still stand. 1989 holds the most, with 66.

Standing records at Pilot Point Isl du Boi by the year they were set
Year set	Standing records
1960	10
1961	36
1962	34
1963	62
1964	38
1965	35
1966	37
1967	50
1968	37
1969	26
1970	51
1971	36
1972	40
1973	24
1974	26
1975	22
1976	41
1977	31
1978	42
1979	32
1980	42
1981	27
1982	29
1983	43
1984	32
1985	42
1986	40
1987	21
1988	22
1989	66
1990	34
1991	36
1992	30
1993	30
1994	33
1995	45
1996	36
1997	37
1998	24
1999	21
2000	26
2001	11
2002	17
2003	10

All-Time Record Progression

6 new records

6 all-time records were set at Pilot Point Isl du Boi between 31 October 1974 and 4 September 2000. Each dot is a new record.

When Pilot Point Isl du Boi set new all-time records
Date	Kind	Detail
1974-10-31	Record daily precipitation	Record daily precipitation 152.4 mm (6.0 in)
1982-05-06	Record daily precipitation	Record daily precipitation 172.7 mm (6.8 in)
1982-05-13	Record daily precipitation	Record daily precipitation 330.2 mm (13.0 in)
1998-07-20	Record high minimum temperature	Record high minimum temperature 32.2 C (90.0 F)
1998-07-21	Record high minimum temperature	Record high minimum temperature 33.3 C (91.9 F)
2000-09-04	Record high maximum temperature	Record high maximum temperature 44.4 C (111.9 F)

Wettest Day of Each Month

May: 330.2 mm (13.0 in)

The wettest day on record for each calendar month at Pilot Point Isl du Boi. The most was 330.2 mm (13.0 in) on 13 May 1982.

Record daily precipitation for each month at Pilot Point Isl du Boi
Month	Record daily precipitation (mm)	Date
Jan	78.7 mm (3.1 in)	23 January 1929
Feb	142.2 mm (5.6 in)	3 February 1986
Mar	132.1 mm (5.2 in)	27 March 1977
Apr	99.3 mm (3.9 in)	27 April 1957
May	330.2 mm (13.0 in)	13 May 1982
Jun	141.0 mm (5.6 in)	9 June 1940
Jul	137.2 mm (5.4 in)	10 July 1994
Aug	97.8 mm (3.9 in)	27 August 1920
Sep	129.5 mm (5.1 in)	27 September 1973
Oct	152.4 mm (6.0 in)	31 October 1974
Nov	113.3 mm (4.5 in)	7 November 1996
Dec	86.4 mm (3.4 in)	12 December 1927

Period of Record Coverage

1960 to 2003

44 years of record at Pilot Point Isl du Boi, 1960 to 2003. 4 years have data for under 90 percent of days and are left out of rankings: 1960, 1980, 2000, 2003.

Days with data per year at Pilot Point Isl du Boi
Year	Days with data	Share of year	Complete
1960	61	17%	No
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	365	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	364	99%	Yes
1969	363	99%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	365	100%	Yes
1973	361	99%	Yes
1974	363	99%	Yes
1975	360	99%	Yes
1976	363	99%	Yes
1977	357	98%	Yes
1978	353	97%	Yes
1979	360	99%	Yes
1980	323	88%	No
1981	363	99%	Yes
1982	357	98%	Yes
1983	364	100%	Yes
1984	362	99%	Yes
1985	364	100%	Yes
1986	362	99%	Yes
1987	363	99%	Yes
1988	365	100%	Yes
1989	361	99%	Yes
1990	364	100%	Yes
1991	365	100%	Yes
1992	364	99%	Yes
1993	365	100%	Yes
1994	333	91%	Yes
1995	362	99%	Yes
1996	356	97%	Yes
1997	362	99%	Yes
1998	361	99%	Yes
1999	331	91%	Yes
2000	322	88%	No
2001	351	96%	Yes
2002	337	92%	Yes
2003	212	58%	No

Latest Records

Latest records at Pilot Point Isl du Boi
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
14 September 2003	Pilot Point Isl du Boi, US	daily low max	19.4 C (66.9 F)	2.8 C (5.0 F)	28 years	17 of 100 (Routine)
2 September 2003	Pilot Point Isl du Boi, US	daily low max (Tie)	26.7 C (80.1 F)	tie	26 years	3 of 100 (Routine)
13 August 2003	Pilot Point Isl du Boi, US	daily low max	28.9 C (84.0 F)	0.5 C (0.9 F)	24 years	12 of 100 (Routine)
10 August 2003	Pilot Point Isl du Boi, US	daily rain	18.3 mm (0.7 in)	0.5 mm (0.02 in)	30 years	17 of 100 (Routine)
10 August 2003	Pilot Point Isl du Boi, US	daily low max	27.8 C (82.0 F)	0.5 C (0.9 F)	13 years	9 of 100 (Routine)
26 June 2003	Pilot Point Isl du Boi, US	daily low max	26.1 C (79.0 F)	1.1 C (2.0 F)	20 years	13 of 100 (Routine)
13 June 2003	Pilot Point Isl du Boi, US	daily low max (Tie)	26.7 C (80.1 F)	tie	28 years	3 of 100 (Routine)
14 April 2003	Pilot Point Isl du Boi, US	daily high min	17.8 C (64.0 F)	0.6 C (1.1 F)	30 years	14 of 100 (Routine)
24 March 2003	Pilot Point Isl du Boi, US	daily high min	16.7 C (62.1 F)	1.1 C (2.0 F)	8 years	8 of 100 (Routine)
27 February 2003	Pilot Point Isl du Boi, US	daily low max	2.8 C (37.0 F)	2.2 C (4.0 F)	19 years	11 of 100 (Routine)
26 February 2003	Pilot Point Isl du Boi, US	daily low max	1.7 C (35.1 F)	6.1 C (11.0 F)	8 years	14 of 100 (Routine)
25 February 2003	Pilot Point Isl du Boi, US	daily low max	-1.7 C (28.9 F)	1.7 C (3.1 F)	37 years	17 of 100 (Routine)
21 February 2003	Pilot Point Isl du Boi, US	daily rain	31.8 mm (1.3 in)	7.7 mm (0.30 in)	28 years	20 of 100 (Routine)
2 February 2003	Pilot Point Isl du Boi, US	daily high min	11.1 C (52.0 F)	2.2 C (4.0 F)	11 years	11 of 100 (Routine)
17 December 2002	Pilot Point Isl du Boi, US	daily high min	12.8 C (55.0 F)	3.4 C (6.1 F)	21 years	16 of 100 (Routine)
17 December 2002	Pilot Point Isl du Boi, US	daily high max (Tie)	21.7 C (71.1 F)	tie	20 years	2 of 100 (Routine)
16 December 2002	Pilot Point Isl du Boi, US	daily high max (Tie)	21.1 C (70.0 F)	tie	24 years	2 of 100 (Routine)
15 December 2002	Pilot Point Isl du Boi, US	daily high min (Tie)	6.7 C (44.1 F)	tie	17 years	2 of 100 (Routine)
25 November 2002	Pilot Point Isl du Boi, US	daily low max	5.0 C (41.0 F)	0.6 C (1.1 F)	29 years	12 of 100 (Routine)
31 October 2002	Pilot Point Isl du Boi, US	monthly low max (Tie)	8.3 C (46.9 F)	tie	35 years	6 of 100 (Routine)

Climate Trend

37 complete years, 1961 to 2002

One stripe for each of 37 complete years at Pilot Point Isl du Boi, 1961 to 2002. Blue stripes are years cooler than the station's own mean of 17.5 C (63.6 F); red stripes are warmer. The coolest year was 1979, at 16.2 C (61.2 F), and the warmest was 1998, at 19.0 C (66.3 F). The strongest colour marks a difference of 1.6 C (2.9 F).

Annual mean temperature at Pilot Point Isl du Boi as warming stripes, 1961 to 2002
Year	Annual mean temperature	Difference from the station mean
1961	17.3 C	-0.29 C
1962	17.6 C	+0.07 C
1963	18.4 C	+0.85 C
1964	17.6 C	+0.07 C
1965	17.8 C	+0.29 C
1966	16.8 C	-0.72 C
1967	17.6 C	+0.06 C
1968	16.5 C	-1.08 C
1969	17.3 C	-0.28 C
1970	17.0 C	-0.52 C
1971	17.6 C	+0.01 C
1972	17.4 C	-0.13 C
1973	17.3 C	-0.21 C
1974	17.3 C	-0.29 C
1975	17.0 C	-0.54 C
1976	16.5 C	-1.01 C
1977	18.0 C	+0.47 C
1978	17.0 C	-0.55 C
1979	16.2 C	-1.31 C
1981	17.7 C	+0.11 C
1982	17.9 C	+0.31 C
1983	16.6 C	-0.97 C
1984	17.6 C	+0.05 C
1985	17.7 C	+0.16 C
1986	18.4 C	+0.84 C
1987	17.7 C	+0.17 C
1988	18.0 C	+0.41 C
1989	17.4 C	-0.14 C
1990	19.0 C	+1.50 C
1991	18.5 C	+0.91 C
1992	18.1 C	+0.57 C
1993	16.3 C	-1.24 C
1995	18.2 C	+0.61 C
1996	17.7 C	+0.14 C
1997	17.6 C	+0.02 C
1998	19.0 C	+1.50 C
2002	17.7 C	+0.11 C

The fitted trend in annual mean temperature here over 1961 to 2002 is 0.19 C (0.00 to 0.37) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.33 F (0.00 to 0.67) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Pilot Point Isl du Boi
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.19 C (0.00 to 0.37) per decade	0.33 F (0.00 to 0.67) per decade	1961 to 2002	37	Not clearly different from zero
Mean daily maximum	0.1 C (-0.1 to 0.3) per decade	0.2 F (-0.2 to 0.5) per decade	1961 to 2002	37	Not clearly different from zero
Mean daily minimum	0.28 C (0.03 to 0.54) per decade	0.5 F (0.1 to 1.0) per decade	1961 to 2002	37	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

1916 to 2003

Yearly extremes at Pilot Point Isl du Boi: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	44.4 C (111.9 F)	2000	40.6 C (105.1 F)	44
Coldest night (TNn)	-18.9 C (-2.0 F)	1989	-11.1 C (12.0 F)	44
Wettest day (Rx1day)	330.2 mm (13.0 in)	1982	84.3 mm (3.3 in)	87
Wettest five days (Rx5day)	350.5 mm (13.8 in)	1982	111.7 mm (4.4 in)	87
Longest dry spell (CDD)	70 days	1950	29 days	87

Hottest day (TXx)

The hottest day of the year at Pilot Point Isl du Boi, 1916 to 2003. The record is 44.4 C (111.9 F) in 2000, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at Pilot Point Isl du Boi by year
Year	Hottest day (TXx)
1916	n/a
1917	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	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	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	30.0 C (86.0 F)
1961	39.4 C (102.9 F)
1962	40.6 C (105.1 F)
1963	41.1 C (106.0 F)
1964	43.3 C (109.9 F)
1965	39.4 C (102.9 F)
1966	40.6 C (105.1 F)
1967	41.7 C (107.1 F)
1968	38.9 C (102.0 F)
1969	42.2 C (108.0 F)
1970	40.6 C (105.1 F)
1971	41.1 C (106.0 F)
1972	40.6 C (105.1 F)
1973	37.2 C (99.0 F)
1974	42.2 C (108.0 F)
1975	37.2 C (99.0 F)
1976	39.4 C (102.9 F)
1977	42.2 C (108.0 F)
1978	42.8 C (109.0 F)
1979	40.0 C (104.0 F)
1980	43.9 C (111.0 F)
1981	40.6 C (105.1 F)
1982	40.6 C (105.1 F)
1983	38.9 C (102.0 F)
1984	41.7 C (107.1 F)
1985	41.1 C (106.0 F)
1986	42.8 C (109.0 F)
1987	39.4 C (102.9 F)
1988	41.1 C (106.0 F)
1989	38.3 C (100.9 F)
1990	40.0 C (104.0 F)
1991	37.8 C (100.0 F)
1992	37.2 C (99.0 F)
1993	38.9 C (102.0 F)
1994	39.4 C (102.9 F)
1995	39.4 C (102.9 F)
1996	41.1 C (106.0 F)
1997	41.1 C (106.0 F)
1998	43.3 C (109.9 F)
1999	41.7 C (107.1 F)
2000	44.4 C (111.9 F)
2001	40.0 C (104.0 F)
2002	37.8 C (100.0 F)
2003	41.1 C (106.0 F)

Coldest night (TNn)

The coldest night of the year at Pilot Point Isl du Boi, 1916 to 2003. The record is -18.9 C (-2.0 F) in 1989, marked on the chart; the median year is -11.1 C (12.0 F).

Coldest night (TNn) at Pilot Point Isl du Boi by year
Year	Coldest night (TNn)
1916	n/a
1917	n/a
1919	n/a
1920	n/a
1921	n/a
1922	n/a
1923	n/a
1924	n/a
1925	n/a
1926	n/a
1927	n/a
1928	n/a
1929	n/a
1930	n/a
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	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	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	-7.8 C (18.0 F)
1961	-9.4 C (15.1 F)
1962	-16.1 C (3.0 F)
1963	-14.4 C (6.1 F)
1964	-12.8 C (9.0 F)
1965	-9.4 C (15.1 F)
1966	-15.6 C (3.9 F)
1967	-7.8 C (18.0 F)
1968	-13.3 C (8.1 F)
1969	-11.1 C (12.0 F)
1970	-10.6 C (12.9 F)
1971	-11.7 C (10.9 F)
1972	-11.7 C (10.9 F)
1973	-11.7 C (10.9 F)
1974	-9.4 C (15.1 F)
1975	-10.0 C (14.0 F)
1976	-13.9 C (7.0 F)
1977	-12.8 C (9.0 F)
1978	-13.9 C (7.0 F)
1979	-12.2 C (10.0 F)
1980	-12.2 C (10.0 F)
1981	-15.0 C (5.0 F)
1982	-17.2 C (1.0 F)
1983	-16.1 C (3.0 F)
1984	-14.4 C (6.1 F)
1985	-16.1 C (3.0 F)
1986	-9.4 C (15.1 F)
1987	-7.2 C (19.0 F)
1988	-11.1 C (12.0 F)
1989	-18.9 C (-2.0 F)
1990	-13.9 C (7.0 F)
1991	-5.6 C (21.9 F)
1992	-7.2 C (19.0 F)
1993	-8.3 C (17.1 F)
1994	-11.1 C (12.0 F)
1995	-8.9 C (16.0 F)
1996	-11.7 C (10.9 F)
1997	-11.1 C (12.0 F)
1998	-10.6 C (12.9 F)
1999	-5.6 C (21.9 F)
2000	-8.3 C (17.1 F)
2001	-7.2 C (19.0 F)
2002	-9.4 C (15.1 F)
2003	-8.9 C (16.0 F)

Wettest day (Rx1day)

The wettest day of the year at Pilot Point Isl du Boi, 1916 to 2003. The record is 330.2 mm (13.0 in) in 1982, marked on the chart; the median year is 84.3 mm (3.3 in).

Wettest day (Rx1day) at Pilot Point Isl du Boi by year
Year	Wettest day (Rx1day)
1916	88.9 mm (3.5 in)
1917	44.5 mm (1.8 in)
1919	99.1 mm (3.9 in)
1920	97.8 mm (3.9 in)
1921	88.9 mm (3.5 in)
1922	94.0 mm (3.7 in)
1923	97.8 mm (3.9 in)
1924	68.6 mm (2.7 in)
1925	45.2 mm (1.8 in)
1926	95.3 mm (3.8 in)
1927	88.9 mm (3.5 in)
1928	129.5 mm (5.1 in)
1929	78.7 mm (3.1 in)
1930	73.7 mm (2.9 in)
1931	77.5 mm (3.1 in)
1932	63.5 mm (2.5 in)
1933	104.1 mm (4.1 in)
1934	69.9 mm (2.8 in)
1935	72.4 mm (2.9 in)
1936	105.4 mm (4.1 in)
1937	94.0 mm (3.7 in)
1938	139.7 mm (5.5 in)
1939	62.2 mm (2.4 in)
1940	141.0 mm (5.6 in)
1941	109.2 mm (4.3 in)
1942	68.6 mm (2.7 in)
1943	104.1 mm (4.1 in)
1944	58.4 mm (2.3 in)
1945	111.8 mm (4.4 in)
1946	104.1 mm (4.1 in)
1947	61.0 mm (2.4 in)
1948	73.7 mm (2.9 in)
1949	95.3 mm (3.8 in)
1950	24.1 mm (0.9 in)
1951	48.3 mm (1.9 in)
1952	54.1 mm (2.1 in)
1953	98.3 mm (3.9 in)
1954	50.8 mm (2.0 in)
1955	38.9 mm (1.5 in)
1956	47.2 mm (1.9 in)
1957	102.9 mm (4.1 in)
1958	83.8 mm (3.3 in)
1959	81.3 mm (3.2 in)
1960	80.5 mm (3.2 in)
1961	65.3 mm (2.6 in)
1962	107.2 mm (4.2 in)
1963	79.2 mm (3.1 in)
1964	98.6 mm (3.9 in)
1965	105.4 mm (4.1 in)
1966	84.3 mm (3.3 in)
1967	129.0 mm (5.1 in)
1968	59.7 mm (2.4 in)
1969	68.6 mm (2.7 in)
1970	101.6 mm (4.0 in)
1971	64.8 mm (2.6 in)
1972	85.3 mm (3.4 in)
1973	134.6 mm (5.3 in)
1974	152.4 mm (6.0 in)
1975	45.7 mm (1.8 in)
1976	57.2 mm (2.3 in)
1977	132.1 mm (5.2 in)
1978	57.2 mm (2.3 in)
1979	45.7 mm (1.8 in)
1980	63.5 mm (2.5 in)
1981	108.0 mm (4.3 in)
1982	330.2 mm (13.0 in)
1983	68.6 mm (2.7 in)
1984	71.1 mm (2.8 in)
1985	104.1 mm (4.1 in)
1986	142.2 mm (5.6 in)
1987	104.1 mm (4.1 in)
1988	73.7 mm (2.9 in)
1989	129.5 mm (5.1 in)
1990	94.0 mm (3.7 in)
1991	86.4 mm (3.4 in)
1992	78.7 mm (3.1 in)
1993	109.2 mm (4.3 in)
1994	137.2 mm (5.4 in)
1995	104.1 mm (4.1 in)
1996	113.3 mm (4.5 in)
1997	81.3 mm (3.2 in)
1998	86.4 mm (3.4 in)
1999	60.7 mm (2.4 in)
2000	78.7 mm (3.1 in)
2001	68.6 mm (2.7 in)
2002	76.2 mm (3.0 in)
2003	43.2 mm (1.7 in)

Wettest five days (Rx5day)

The wettest five days of the year at Pilot Point Isl du Boi, 1916 to 2003. The record is 350.5 mm (13.8 in) in 1982, marked on the chart; the median year is 111.7 mm (4.4 in).

Wettest five days (Rx5day) at Pilot Point Isl du Boi by year
Year	Wettest five days (Rx5day)
1916	111.7 mm (4.4 in)
1917	54.7 mm (2.2 in)
1919	116.9 mm (4.6 in)
1920	106.7 mm (4.2 in)
1921	100.4 mm (4.0 in)
1922	109.2 mm (4.3 in)
1923	127.0 mm (5.0 in)
1924	68.6 mm (2.7 in)
1925	99.5 mm (3.9 in)
1926	127.8 mm (5.0 in)
1927	101.6 mm (4.0 in)
1928	135.9 mm (5.4 in)
1929	168.9 mm (6.6 in)
1930	87.7 mm (3.5 in)
1931	32.3 mm (1.3 in)
1932	81.3 mm (3.2 in)
1933	73.7 mm (2.9 in)
1934	80.1 mm (3.2 in)
1935	119.4 mm (4.7 in)
1936	149.9 mm (5.9 in)
1937	94.0 mm (3.7 in)
1938	36.8 mm (1.4 in)
1939	79.2 mm (3.1 in)
1940	88.9 mm (3.5 in)
1941	134.6 mm (5.3 in)
1942	144.8 mm (5.7 in)
1943	104.1 mm (4.1 in)
1944	91.4 mm (3.6 in)
1945	167.7 mm (6.6 in)
1946	187.9 mm (7.4 in)
1947	61.0 mm (2.4 in)
1948	83.9 mm (3.3 in)
1949	96.6 mm (3.8 in)
1950	46.5 mm (1.8 in)
1951	128.4 mm (5.1 in)
1952	93.8 mm (3.7 in)
1953	100.3 mm (3.9 in)
1954	102.2 mm (4.0 in)
1955	77.5 mm (3.1 in)
1956	96.8 mm (3.8 in)
1957	219.3 mm (8.6 in)
1958	148.6 mm (5.9 in)
1959	129.8 mm (5.1 in)
1960	161.8 mm (6.4 in)
1961	82.3 mm (3.2 in)
1962	210.1 mm (8.3 in)
1963	81.5 mm (3.2 in)
1964	175.1 mm (6.9 in)
1965	137.4 mm (5.4 in)
1966	214.1 mm (8.4 in)
1967	149.6 mm (5.9 in)
1968	87.1 mm (3.4 in)
1969	130.3 mm (5.1 in)
1970	171.2 mm (6.7 in)
1971	122.8 mm (4.8 in)
1972	99.3 mm (3.9 in)
1973	247.6 mm (9.7 in)
1974	175.3 mm (6.9 in)
1975	82.6 mm (3.3 in)
1976	104.0 mm (4.1 in)
1977	161.3 mm (6.4 in)
1978	94.0 mm (3.7 in)
1979	101.5 mm (4.0 in)
1980	121.9 mm (4.8 in)
1981	227.4 mm (9.0 in)
1982	350.5 mm (13.8 in)
1983	88.9 mm (3.5 in)
1984	94.0 mm (3.7 in)
1985	135.8 mm (5.3 in)
1986	188.0 mm (7.4 in)
1987	126.9 mm (5.0 in)
1988	86.4 mm (3.4 in)
1989	191.7 mm (7.5 in)
1990	155.0 mm (6.1 in)
1991	200.7 mm (7.9 in)
1992	116.7 mm (4.6 in)
1993	180.3 mm (7.1 in)
1994	210.9 mm (8.3 in)
1995	106.7 mm (4.2 in)
1996	180.4 mm (7.1 in)
1997	96.5 mm (3.8 in)
1998	106.6 mm (4.2 in)
1999	94.0 mm (3.7 in)
2000	120.7 mm (4.8 in)
2001	119.4 mm (4.7 in)
2002	127.8 mm (5.0 in)
2003	53.1 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Pilot Point Isl du Boi, 1916 to 2003. The record is 70 days in 1950, marked on the chart; the median year is 29 days.

Longest dry spell (CDD) at Pilot Point Isl du Boi by year
Year	Longest dry spell (CDD)
1916	29 days
1917	25 days
1919	19 days
1920	39 days
1921	37 days
1922	35 days
1923	21 days
1924	29 days
1925	48 days
1926	22 days
1927	37 days
1928	25 days
1929	27 days
1930	21 days
1931	23 days
1932	8 days
1933	18 days
1934	19 days
1935	37 days
1936	15 days
1937	33 days
1938	30 days
1939	31 days
1940	20 days
1941	23 days
1942	48 days
1943	38 days
1944	27 days
1945	30 days
1946	18 days
1947	30 days
1948	27 days
1949	23 days
1950	70 days
1951	36 days
1952	31 days
1953	19 days
1954	33 days
1955	33 days
1956	41 days
1957	20 days
1958	27 days
1959	33 days
1960	24 days
1961	19 days
1962	25 days
1963	40 days
1964	40 days
1965	25 days
1966	25 days
1967	41 days
1968	16 days
1969	26 days
1970	36 days
1971	24 days
1972	32 days
1973	36 days
1974	24 days
1975	23 days
1976	28 days
1977	31 days
1978	45 days
1979	29 days
1980	26 days
1981	22 days
1982	21 days
1983	49 days
1984	17 days
1985	38 days
1986	33 days
1987	31 days
1988	30 days
1989	37 days
1990	20 days
1991	32 days
1992	20 days
1993	41 days
1994	15 days
1995	26 days
1996	45 days
1997	26 days
1998	51 days
1999	54 days
2000	25 days
2001	29 days
2002	27 days
2003	40 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

37 years with a frost

Across 37 years with a frost, the median last spring frost at Pilot Point Isl du Boi falls on 22 March and the median first autumn frost on 13 November, which leaves a median of 239 days between them.

Fitted over all years, the growing season changes by -0.1 days per decade at this station.

Frost dates and growing season at Pilot Point Isl du Boi
Measure	Median, all years	Earliest period	Recent period (1968 to 2002)	Recent against earliest	Fitted trend
Last spring frost	22 March	n/a	23 March	n/a	+0.1 days per decade
First autumn frost	13 November	n/a	12 November	n/a	0.0 days per decade
Growing days	239 days	n/a	236 days	n/a	-0.1 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, 1925 to 2002

A day with at least 79.8 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 227.4 mm (9.0 in) of rain is expected about once in 100 years.

Rainfall return levels at Pilot Point Isl du Boi: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	79.8 mm (3.1 in)
5 years	111.3 mm (4.4 in)
10 years	135.0 mm (5.3 in)
25 years	168.7 mm (6.6 in)
50 years	196.7 mm (7.7 in)
100 years	227.4 mm (9.0 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 1925 to 2002.

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: 330.2 mm (13.0 in) in 1982; 152.4 mm (6.0 in) in 1974; 137.2 mm (5.4 in) in 1994.

Download the Data

Data for Pilot Point Isl du Boi standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Pilot Point Isl du Boi 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).