Las Burras Weather Records (MXN00008092)

Record envelope, standing records and threshold days for Las Burras (MXN00008092), Mexico, with 52 years of record.

Key Facts for Las Burras

Las Burras (MXN00008092) is a weather station in Mexico at 28.50 latitude and -105.42 longitude, 1,093 m (3,585 ft) above sea level.
The station reports from 1949 to 2000, 52 years of record.
1,464 records set at Las Burras still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Las Burras tied a daily record low minimum temperature of -5.0 C (23.0 F) on 18 December 2000.

About the Station

Location: Mexico, 28.50 latitude, -105.42 longitude.
Elevation: 1,093 m (3,585 ft).
Period of record: 1949 to 2000, 52 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 Las Burras. 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 Las Burras, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.1 C (88.0 F)	-15.0 C (5.0 F)	n/a	n/a
Feb	33.9 C (93.0 F)	-11.1 C (12.0 F)	n/a	n/a
Mar	36.7 C (98.1 F)	-7.2 C (19.0 F)	n/a	n/a
Apr	39.4 C (102.9 F)	-4.4 C (24.1 F)	n/a	n/a
May	42.8 C (109.0 F)	3.9 C (39.0 F)	n/a	n/a
Jun	45.0 C (113.0 F)	7.8 C (46.0 F)	n/a	n/a
Jul	43.9 C (111.0 F)	11.7 C (53.1 F)	n/a	n/a
Aug	41.7 C (107.1 F)	11.1 C (52.0 F)	n/a	n/a
Sep	40.0 C (104.0 F)	3.9 C (39.0 F)	n/a	n/a
Oct	37.8 C (100.0 F)	-2.2 C (28.0 F)	n/a	n/a
Nov	36.7 C (98.1 F)	-9.4 C (15.1 F)	n/a	n/a
Dec	31.7 C (89.1 F)	-12.2 C (10.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Las Burras still stand. 2000 holds the most, with 80.

Standing records at Las Burras by the year they were set
Year set	Standing records
1949	12
1950	19
1951	56
1952	32
1953	29
1954	38
1955	35
1956	29
1957	48
1958	41
1959	22
1960	29
1961	21
1962	16
1963	21
1964	25
1965	22
1966	28
1967	31
1968	21
1969	29
1970	29
1971	28
1972	25
1973	41
1974	35
1975	36
1976	44
1977	42
1978	22
1979	46
1980	43
1981	30
1982	27
1983	25
1984	25
1985	19
1986	29
1987	24
1988	25
1989	34
1990	15
1991	12
1992	26
1993	9
1994	20
1995	20
1996	8
1997	16
1998	13
1999	12
2000	80

All-Time Record Progression

1 new records

1 all-time records were set at Las Burras between 6 June 1980 and 6 June 1980. Each dot is a new record.

Wettest Day of Each Month

Sep: 69.9 mm (2.8 in)

The wettest day on record for each calendar month at Las Burras. The most was 69.9 mm (2.8 in) on 20 September 1974.

Record daily precipitation for each month at Las Burras
Month	Record daily precipitation (mm)	Date
Jan	23.9 mm (0.9 in)	30 January 1984
Feb	14.5 mm (0.6 in)	20 February 1973
Mar	17.8 mm (0.7 in)	22 March 1967
Apr	39.9 mm (1.6 in)	21 April 1987
May	32.8 mm (1.3 in)	26 May 1953
Jun	60.2 mm (2.4 in)	17 June 1984
Jul	59.9 mm (2.4 in)	13 July 1951
Aug	52.8 mm (2.1 in)	10 August 1991
Sep	69.9 mm (2.8 in)	20 September 1974
Oct	53.1 mm (2.1 in)	6 October 1971
Nov	34.0 mm (1.3 in)	20 November 1960
Dec	31.8 mm (1.3 in)	1 December 1965

Period of Record Coverage

1949 to 2000

52 years of record at Las Burras, 1949 to 2000. 12 years have data for under 90 percent of days and are left out of rankings: 1949, 1985, 1988, 1990, 1992, 1993, 1995, 1996 and others.

Days with data per year at Las Burras
Year	Days with data	Share of year	Complete
1949	184	50%	No
1950	365	100%	Yes
1951	363	99%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	363	99%	Yes
1956	364	99%	Yes
1957	365	100%	Yes
1958	362	99%	Yes
1959	364	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	364	100%	Yes
1963	364	100%	Yes
1964	334	91%	Yes
1965	364	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	335	92%	Yes
1969	364	100%	Yes
1970	363	99%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	364	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	364	99%	Yes
1977	365	100%	Yes
1978	364	100%	Yes
1979	365	100%	Yes
1980	351	96%	Yes
1981	363	99%	Yes
1982	363	99%	Yes
1983	364	100%	Yes
1984	365	100%	Yes
1985	184	50%	No
1986	364	100%	Yes
1987	362	99%	Yes
1988	320	87%	No
1989	344	94%	Yes
1990	157	43%	No
1991	332	91%	Yes
1992	295	81%	No
1993	249	68%	No
1994	363	99%	Yes
1995	319	87%	No
1996	74	20%	No
1997	289	79%	No
1998	231	63%	No
1999	225	62%	No
2000	312	85%	No

Latest Records

Latest records at Las Burras
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 2000	Las Burras, MX	daily low min (Tie)	-5.0 C (23.0 F)	tie	46 years	4 of 100 (Routine)
19 November 2000	Las Burras, MX	daily low min	-4.4 C (24.1 F)	2.2 C (4.0 F)	46 years	23 of 100 (Routine)
11 November 2000	Las Burras, MX	daily low min (Tie)	-3.3 C (26.1 F)	tie	23 years	2 of 100 (Routine)
10 November 2000	Las Burras, MX	daily low min	-3.3 C (26.1 F)	1.1 C (2.0 F)	23 years	13 of 100 (Routine)
9 November 2000	Las Burras, MX	daily low min	-2.2 C (28.0 F)	2.8 C (5.0 F)	45 years	25 of 100 (Routine)
7 November 2000	Las Burras, MX	daily rain	15.0 mm (0.6 in)	9.7 mm (0.38 in)	26 years	20 of 100 (Routine)
2 November 2000	Las Burras, MX	daily rain	15.0 mm (0.6 in)	13.2 mm (0.5 in)	17 years	20 of 100 (Routine)
25 October 2000	Las Burras, MX	daily low max	22.2 C (72.0 F)	0.6 C (1.1 F)	51 years	21 of 100 (Routine)
22 October 2000	Las Burras, MX	daily rain	11.9 mm (0.5 in)	7.1 mm (0.28 in)	14 years	17 of 100 (Routine)
20 October 2000	Las Burras, MX	daily rain	40.9 mm (1.6 in)	3.8 mm (0.15 in)	43 years	21 of 100 (Routine)
14 October 2000	Las Burras, MX	daily low min (Tie)	5.0 C (41.0 F)	tie	27 years	3 of 100 (Routine)
2 October 2000	Las Burras, MX	daily low min	7.2 C (45.0 F)	0.6 C (1.1 F)	37 years	17 of 100 (Routine)
22 September 2000	Las Burras, MX	daily low min	9.4 C (48.9 F)	1.2 C (2.2 F)	16 years	12 of 100 (Routine)
21 September 2000	Las Burras, MX	daily low min	7.8 C (46.0 F)	1.1 C (2.0 F)	16 years	12 of 100 (Routine)
17 September 2000	Las Burras, MX	daily low min	9.4 C (48.9 F)	1.2 C (2.2 F)	21 years	14 of 100 (Routine)
14 September 2000	Las Burras, MX	daily low min (Tie)	8.9 C (48.0 F)	tie	47 years	4 of 100 (Routine)
12 September 2000	Las Burras, MX	daily low min (Tie)	11.7 C (53.1 F)	tie	40 years	4 of 100 (Routine)
9 September 2000	Las Burras, MX	daily low min	10.0 C (50.0 F)	1.7 C (3.1 F)	26 years	17 of 100 (Routine)
8 September 2000	Las Burras, MX	daily low min	10.0 C (50.0 F)	2.8 C (5.0 F)	48 years	28 of 100 (Routine)
6 September 2000	Las Burras, MX	daily low min	10.0 C (50.0 F)	0.6 C (1.1 F)	16 years	10 of 100 (Routine)

Climate Trend

34 complete years, 1950 to 1994

One stripe for each of 34 complete years at Las Burras, 1950 to 1994. Blue stripes are years cooler than the station's own mean of 19.3 C (66.8 F); red stripes are warmer. The coolest year was 1976, at 18.0 C (64.3 F), and the warmest was 1951, at 20.2 C (68.4 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Las Burras as warming stripes, 1950 to 1994
Year	Annual mean temperature	Difference from the station mean
1950	20.1 C	+0.77 C
1951	20.2 C	+0.89 C
1952	19.3 C	-0.06 C
1953	19.2 C	-0.10 C
1954	20.1 C	+0.79 C
1955	19.2 C	-0.17 C
1956	19.7 C	+0.34 C
1957	20.1 C	+0.74 C
1958	19.6 C	+0.24 C
1959	19.4 C	+0.01 C
1960	19.3 C	-0.07 C
1961	19.1 C	-0.24 C
1962	19.6 C	+0.26 C
1963	19.6 C	+0.27 C
1965	19.5 C	+0.20 C
1966	18.9 C	-0.41 C
1967	19.3 C	-0.06 C
1969	19.7 C	+0.39 C
1970	19.2 C	-0.19 C
1971	19.2 C	-0.11 C
1972	19.6 C	+0.26 C
1973	18.6 C	-0.71 C
1974	19.3 C	-0.06 C
1975	18.6 C	-0.75 C
1976	18.0 C	-1.39 C
1977	19.2 C	-0.11 C
1978	18.9 C	-0.41 C
1979	18.4 C	-0.93 C
1981	18.4 C	-0.93 C
1982	19.9 C	+0.54 C
1983	19.9 C	+0.54 C
1984	19.6 C	+0.27 C
1987	18.8 C	-0.55 C
1994	20.2 C	+0.83 C

The fitted trend in annual mean temperature here over 1950 to 1994 is -0.15 C (-0.31 to 0.01) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.27 F (-0.56 to 0.03) per decade. The slope is a straight line fitted to 34 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Las Burras
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.15 C (-0.31 to 0.01) per decade	-0.27 F (-0.56 to 0.03) per decade	1950 to 1994	34	Not clearly different from zero
Mean daily maximum	0.3 C (0.1 to 0.5) per decade	0.5 F (0.2 to 0.9) per decade	1950 to 1994	34	Rise
Mean daily minimum	-0.6 C (-0.9 to -0.3) per decade	-1.1 F (-1.7 to -0.5) per decade	1950 to 1994	34	Fall

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

1949 to 2000

Yearly extremes at Las Burras: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	45.0 C (113.0 F)	1980	40.6 C (105.1 F)	52
Coldest night (TNn)	-15.0 C (5.0 F)	1962	-8.3 C (17.1 F)	52
Wettest day (Rx1day)	69.9 mm (2.8 in)	1974	35.6 mm (1.4 in)	52
Wettest five days (Rx5day)	184.2 mm (7.3 in)	1991	57.1 mm (2.2 in)	52
Longest dry spell (CDD)	192 days	1992	87 days	52

Hottest day (TXx)

The hottest day of the year at Las Burras, 1949 to 2000. The record is 45.0 C (113.0 F) in 1980, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at Las Burras by year
Year	Hottest day (TXx)
1949	36.7 C (98.1 F)
1950	37.8 C (100.0 F)
1951	41.7 C (107.1 F)
1952	39.4 C (102.9 F)
1953	41.1 C (106.0 F)
1954	40.0 C (104.0 F)
1955	40.0 C (104.0 F)
1956	40.0 C (104.0 F)
1957	42.8 C (109.0 F)
1958	41.7 C (107.1 F)
1959	40.0 C (104.0 F)
1960	40.6 C (105.1 F)
1961	40.0 C (104.0 F)
1962	40.6 C (105.1 F)
1963	40.0 C (104.0 F)
1964	40.0 C (104.0 F)
1965	38.9 C (102.0 F)
1966	38.9 C (102.0 F)
1967	38.9 C (102.0 F)
1968	40.6 C (105.1 F)
1969	41.7 C (107.1 F)
1970	40.6 C (105.1 F)
1971	38.9 C (102.0 F)
1972	40.6 C (105.1 F)
1973	43.9 C (111.0 F)
1974	41.7 C (107.1 F)
1975	41.7 C (107.1 F)
1976	40.6 C (105.1 F)
1977	41.7 C (107.1 F)
1978	41.7 C (107.1 F)
1979	43.9 C (111.0 F)
1980	45.0 C (113.0 F)
1981	41.7 C (107.1 F)
1982	42.2 C (108.0 F)
1983	41.7 C (107.1 F)
1984	41.7 C (107.1 F)
1985	40.0 C (104.0 F)
1986	40.6 C (105.1 F)
1987	42.2 C (108.0 F)
1988	41.7 C (107.1 F)
1989	42.8 C (109.0 F)
1990	38.9 C (102.0 F)
1991	41.1 C (106.0 F)
1992	40.6 C (105.1 F)
1993	38.9 C (102.0 F)
1994	42.2 C (108.0 F)
1995	42.8 C (109.0 F)
1996	40.6 C (105.1 F)
1997	41.7 C (107.1 F)
1998	43.9 C (111.0 F)
1999	42.8 C (109.0 F)
2000	37.8 C (100.0 F)

Coldest night (TNn)

The coldest night of the year at Las Burras, 1949 to 2000. The record is -15.0 C (5.0 F) in 1962, marked on the chart; the median year is -8.3 C (17.1 F).

Coldest night (TNn) at Las Burras by year
Year	Coldest night (TNn)
1949	-8.3 C (17.1 F)
1950	-5.0 C (23.0 F)
1951	-10.0 C (14.0 F)
1952	-8.3 C (17.1 F)
1953	-12.2 C (10.0 F)
1954	-10.0 C (14.0 F)
1955	-8.3 C (17.1 F)
1956	-11.1 C (12.0 F)
1957	-6.1 C (21.0 F)
1958	-6.1 C (21.0 F)
1959	-6.1 C (21.0 F)
1960	-7.2 C (19.0 F)
1961	-5.0 C (23.0 F)
1962	-15.0 C (5.0 F)
1963	-9.4 C (15.1 F)
1964	-9.4 C (15.1 F)
1965	-7.2 C (19.0 F)
1966	-7.2 C (19.0 F)
1967	-9.4 C (15.1 F)
1968	-10.0 C (14.0 F)
1969	-8.3 C (17.1 F)
1970	-9.4 C (15.1 F)
1971	-9.4 C (15.1 F)
1972	-7.2 C (19.0 F)
1973	-12.2 C (10.0 F)
1974	-11.1 C (12.0 F)
1975	-10.0 C (14.0 F)
1976	-10.0 C (14.0 F)
1977	-9.4 C (15.1 F)
1978	-10.0 C (14.0 F)
1979	-9.4 C (15.1 F)
1980	-8.3 C (17.1 F)
1981	-6.1 C (21.0 F)
1982	-6.1 C (21.0 F)
1983	-7.2 C (19.0 F)
1984	-5.0 C (23.0 F)
1985	-7.2 C (19.0 F)
1986	-7.2 C (19.0 F)
1987	-10.0 C (14.0 F)
1988	-8.9 C (16.0 F)
1989	-10.0 C (14.0 F)
1990	-9.4 C (15.1 F)
1991	-5.0 C (23.0 F)
1992	-6.1 C (21.0 F)
1993	-5.0 C (23.0 F)
1994	-6.1 C (21.0 F)
1995	-3.3 C (26.1 F)
1996	-5.6 C (21.9 F)
1997	-7.2 C (19.0 F)
1998	-5.0 C (23.0 F)
1999	-4.4 C (24.1 F)
2000	-6.1 C (21.0 F)

Wettest day (Rx1day)

The wettest day of the year at Las Burras, 1949 to 2000. The record is 69.9 mm (2.8 in) in 1974, marked on the chart; the median year is 35.6 mm (1.4 in).

Wettest day (Rx1day) at Las Burras by year
Year	Wettest day (Rx1day)
1949	27.4 mm (1.1 in)
1950	36.1 mm (1.4 in)
1951	59.9 mm (2.4 in)
1952	43.7 mm (1.7 in)
1953	32.8 mm (1.3 in)
1954	30.0 mm (1.2 in)
1955	35.3 mm (1.4 in)
1956	22.6 mm (0.9 in)
1957	37.1 mm (1.5 in)
1958	54.6 mm (2.1 in)
1959	30.5 mm (1.2 in)
1960	38.4 mm (1.5 in)
1961	25.9 mm (1.0 in)
1962	23.4 mm (0.9 in)
1963	24.9 mm (1.0 in)
1964	18.5 mm (0.7 in)
1965	31.8 mm (1.3 in)
1966	24.4 mm (1.0 in)
1967	39.1 mm (1.5 in)
1968	53.3 mm (2.1 in)
1969	35.6 mm (1.4 in)
1970	45.0 mm (1.8 in)
1971	53.1 mm (2.1 in)
1972	35.6 mm (1.4 in)
1973	36.6 mm (1.4 in)
1974	69.9 mm (2.8 in)
1975	41.7 mm (1.6 in)
1976	35.3 mm (1.4 in)
1977	44.2 mm (1.7 in)
1978	33.3 mm (1.3 in)
1979	38.4 mm (1.5 in)
1980	46.0 mm (1.8 in)
1981	38.1 mm (1.5 in)
1982	21.8 mm (0.9 in)
1983	31.0 mm (1.2 in)
1984	60.2 mm (2.4 in)
1985	15.5 mm (0.6 in)
1986	25.9 mm (1.0 in)
1987	48.8 mm (1.9 in)
1988	42.9 mm (1.7 in)
1989	34.8 mm (1.4 in)
1990	39.9 mm (1.6 in)
1991	52.8 mm (2.1 in)
1992	11.9 mm (0.5 in)
1993	32.0 mm (1.3 in)
1994	14.7 mm (0.6 in)
1995	19.3 mm (0.8 in)
1996	39.9 mm (1.6 in)
1997	49.8 mm (2.0 in)
1998	32.8 mm (1.3 in)
1999	14.0 mm (0.6 in)
2000	40.9 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Las Burras, 1949 to 2000. The record is 184.2 mm (7.3 in) in 1991, marked on the chart; the median year is 57.1 mm (2.2 in).

Wettest five days (Rx5day) at Las Burras by year
Year	Wettest five days (Rx5day)
1949	37.1 mm (1.5 in)
1950	44.7 mm (1.8 in)
1951	64.0 mm (2.5 in)
1952	64.5 mm (2.5 in)
1953	32.8 mm (1.3 in)
1954	80.2 mm (3.2 in)
1955	61.2 mm (2.4 in)
1956	30.2 mm (1.2 in)
1957	37.4 mm (1.5 in)
1958	122.0 mm (4.8 in)
1959	49.9 mm (2.0 in)
1960	64.1 mm (2.5 in)
1961	39.1 mm (1.5 in)
1962	43.0 mm (1.7 in)
1963	70.4 mm (2.8 in)
1964	42.1 mm (1.7 in)
1965	45.7 mm (1.8 in)
1966	49.9 mm (2.0 in)
1967	65.0 mm (2.6 in)
1968	135.4 mm (5.3 in)
1969	58.9 mm (2.3 in)
1970	62.6 mm (2.5 in)
1971	123.0 mm (4.8 in)
1972	87.4 mm (3.4 in)
1973	63.0 mm (2.5 in)
1974	171.3 mm (6.7 in)
1975	42.3 mm (1.7 in)
1976	68.9 mm (2.7 in)
1977	64.5 mm (2.5 in)
1978	61.5 mm (2.4 in)
1979	46.0 mm (1.8 in)
1980	87.8 mm (3.5 in)
1981	64.6 mm (2.5 in)
1982	28.9 mm (1.1 in)
1983	54.4 mm (2.1 in)
1984	100.8 mm (4.0 in)
1985	31.8 mm (1.3 in)
1986	44.5 mm (1.8 in)
1987	84.1 mm (3.3 in)
1988	88.6 mm (3.5 in)
1989	41.7 mm (1.6 in)
1990	78.3 mm (3.1 in)
1991	184.2 mm (7.3 in)
1992	14.7 mm (0.6 in)
1993	58.5 mm (2.3 in)
1994	30.0 mm (1.2 in)
1995	29.2 mm (1.1 in)
1996	39.9 mm (1.6 in)
1997	50.6 mm (2.0 in)
1998	32.8 mm (1.3 in)
1999	17.8 mm (0.7 in)
2000	55.6 mm (2.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Las Burras, 1949 to 2000. The record is 192 days in 1992, marked on the chart; the median year is 87 days.

Longest dry spell (CDD) at Las Burras by year
Year	Longest dry spell (CDD)
1949	60 days
1950	92 days
1951	95 days
1952	59 days
1953	77 days
1954	101 days
1955	120 days
1956	115 days
1957	60 days
1958	103 days
1959	76 days
1960	76 days
1961	114 days
1962	123 days
1963	46 days
1964	105 days
1965	114 days
1966	103 days
1967	71 days
1968	62 days
1969	103 days
1970	71 days
1971	103 days
1972	118 days
1973	88 days
1974	71 days
1975	113 days
1976	75 days
1977	87 days
1978	121 days
1979	60 days
1980	96 days
1981	69 days
1982	75 days
1983	50 days
1984	101 days
1985	47 days
1986	113 days
1987	95 days
1988	97 days
1989	86 days
1990	62 days
1991	52 days
1992	192 days
1993	45 days
1994	69 days
1995	86 days
1996	96 days
1997	49 days
1998	24 days
1999	6 days
2000	152 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

34 years with a frost

Across 34 years with a frost, the median last spring frost at Las Burras falls on 18 March and the median first autumn frost on 17 November, which leaves a median of 245 days between them.

Fitted over all years, the growing season changes by -5.3 days per decade at this station.

Frost dates and growing season at Las Burras
Measure	Median, all years	Earliest period	Recent period (1954 to 1994)	Recent against earliest	Fitted trend
Last spring frost	18 March	n/a	18 March	n/a	+4.3 days per decade
First autumn frost	17 November	n/a	19 November	n/a	-1.0 days per decade
Growing days	245 days	n/a	243 days	n/a	-5.3 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

43 years, 1950 to 2000

A day with at least 36.3 mm (1.4 in) of rain is expected about once in 2 years. A day with at least 68.8 mm (2.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Las Burras: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	36.3 mm (1.4 in)
5 years	47.5 mm (1.9 in)
10 years	53.8 mm (2.1 in)
25 years	60.6 mm (2.4 in)
50 years	64.9 mm (2.6 in)	Longer than the 43 years of record
100 years	68.8 mm (2.7 in)	Longer than the 43 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, 43 years of values from 1950 to 2000.

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: 69.9 mm (2.8 in) in 1974; 60.2 mm (2.4 in) in 1984; 59.9 mm (2.4 in) in 1951.

Download the Data

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