Rodeo (Smn) Weather Records (MXN00010060)

Record envelope, standing records and threshold days for Rodeo (Smn) (MXN00010060), Mexico, with 51 years of record.

Key Facts for Rodeo (Smn)

Rodeo (Smn) (MXN00010060) is a weather station in Mexico at 25.18 latitude and -104.53 longitude, 1,810 m (5,938 ft) above sea level.
The station reports from 1926 to 1976, 51 years of record.
1,464 records set at Rodeo (Smn) still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Rodeo (Smn) set a daily record high minimum temperature of 15.6 C (60.1 F) on 29 February 1976.

About the Station

Location: Mexico, 25.18 latitude, -104.53 longitude.
Elevation: 1,810 m (5,938 ft).
Period of record: 1926 to 1976, 51 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 Rodeo (Smn). 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 Rodeo (Smn), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.8 C (100.0 F)	-10.6 C (12.9 F)	n/a	n/a
Feb	40.6 C (105.1 F)	-7.2 C (19.0 F)	n/a	n/a
Mar	38.9 C (102.0 F)	-5.0 C (23.0 F)	n/a	n/a
Apr	42.2 C (108.0 F)	-5.6 C (21.9 F)	n/a	n/a
May	42.8 C (109.0 F)	2.2 C (36.0 F)	n/a	n/a
Jun	46.7 C (116.1 F)	6.1 C (43.0 F)	n/a	n/a
Jul	40.6 C (105.1 F)	7.2 C (45.0 F)	n/a	n/a
Aug	40.0 C (104.0 F)	8.9 C (48.0 F)	n/a	n/a
Sep	40.0 C (104.0 F)	5.0 C (41.0 F)	n/a	n/a
Oct	40.0 C (104.0 F)	-6.1 C (21.0 F)	n/a	n/a
Nov	40.0 C (104.0 F)	-5.6 C (21.9 F)	n/a	n/a
Dec	37.8 C (100.0 F)	-8.3 C (17.1 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Rodeo (Smn) still stand. 1953 holds the most, with 65.

Standing records at Rodeo (Smn) by the year they were set
Year set	Standing records
1926	14
1927	29
1928	30
1929	30
1930	44
1931	31
1932	30
1933	35
1934	30
1935	27
1936	23
1937	20
1938	28
1939	31
1940	38
1942	26
1943	7
1944	39
1945	38
1946	32
1947	36
1948	34
1949	23
1950	24
1951	41
1952	48
1953	65
1954	21
1955	44
1956	19
1957	41
1958	23
1959	21
1960	23
1961	30
1962	33
1963	20
1964	21
1965	19
1966	17
1967	26
1968	20
1969	19
1970	20
1971	18
1972	27
1973	37
1974	48
1975	42
1976	22

All-Time Record Progression

6 new records

6 all-time records were set at Rodeo (Smn) between 11 January 1962 and 15 June 1970. Each dot is a new record.

When Rodeo (Smn) set new all-time records
Date	Kind	Detail
1962-01-11	Record low maximum temperature	Record low maximum temperature 6.1 C (43.0 F)
1962-01-12	Record low minimum temperature	Record low minimum temperature -10.6 C (12.9 F)
1962-06-16	Record high maximum temperature	Record high maximum temperature 43.3 C (109.9 F)
1967-01-11	Record low maximum temperature	Record low maximum temperature 3.3 C (37.9 F)
1969-06-22	Record high maximum temperature	Record high maximum temperature 46.7 C (116.1 F)
1970-06-15	Record high minimum temperature	Record high minimum temperature 26.7 C (80.1 F)

Wettest Day of Each Month

Feb: 89.9 mm (3.5 in)

The wettest day on record for each calendar month at Rodeo (Smn). The most was 89.9 mm (3.5 in) on 22 February 1949.

Record daily precipitation for each month at Rodeo (Smn)
Month	Record daily precipitation (mm)	Date
Jan	23.9 mm (0.9 in)	7 January 1943
Feb	89.9 mm (3.5 in)	22 February 1949
Mar	29.0 mm (1.1 in)	3 March 1968
Apr	19.3 mm (0.8 in)	22 April 1948
May	63.0 mm (2.5 in)	15 May 1956
Jun	59.9 mm (2.4 in)	10 June 1930
Jul	68.8 mm (2.7 in)	14 July 1926
Aug	82.3 mm (3.2 in)	23 August 1936
Sep	85.3 mm (3.4 in)	17 September 1926
Oct	46.0 mm (1.8 in)	13 October 1948
Nov	24.4 mm (1.0 in)	30 November 1946
Dec	41.9 mm (1.6 in)	14 December 1937

Period of Record Coverage

1926 to 1976

50 years of record at Rodeo (Smn), 1926 to 1976. 2 years have data for under 90 percent of days and are left out of rankings: 1926, 1976.

Days with data per year at Rodeo (Smn)
Year	Days with data	Share of year	Complete
1926	176	48%	No
1927	365	100%	Yes
1928	366	100%	Yes
1929	365	100%	Yes
1930	365	100%	Yes
1931	365	100%	Yes
1932	338	92%	Yes
1933	365	100%	Yes
1934	365	100%	Yes
1935	365	100%	Yes
1936	366	100%	Yes
1937	365	100%	Yes
1938	365	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1942	365	100%	Yes
1943	365	100%	Yes
1944	366	100%	Yes
1945	365	100%	Yes
1946	363	99%	Yes
1947	365	100%	Yes
1948	365	100%	Yes
1949	364	100%	Yes
1950	364	100%	Yes
1951	337	92%	Yes
1952	366	100%	Yes
1953	364	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	365	100%	Yes
1957	365	100%	Yes
1958	364	100%	Yes
1959	364	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	364	100%	Yes
1963	365	100%	Yes
1964	365	100%	Yes
1965	364	100%	Yes
1966	362	99%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	359	98%	Yes
1970	362	99%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	364	100%	Yes
1974	332	91%	Yes
1975	349	96%	Yes
1976	44	12%	No

Latest Records

Latest records at Rodeo (Smn)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 February 1976	Rodeo (Smn), MX	daily high min	15.6 C (60.1 F)	0.6 C (1.1 F)	28 years	14 of 100 (Routine)
28 February 1976	Rodeo (Smn), MX	daily high min	18.3 C (64.9 F)	5.0 C (9.0 F)	30 years	26 of 100 (Routine)
28 February 1976	Rodeo (Smn), MX	daily rain	9.4 mm (0.37 in)	9.4 mm (0.37 in)	48 years	20 of 100 (Routine)
27 February 1976	Rodeo (Smn), MX	daily high min	18.9 C (66.0 F)	7.2 C (13.0 F)	38 years	34 of 100 (Routine)
27 February 1976	Rodeo (Smn), MX	daily rain	4.8 mm (0.19 in)	2.5 mm (0.10 in)	37 years	17 of 100 (Routine)
27 February 1976	Rodeo (Smn), MX	daily high max (Tie)	32.8 C (91.0 F)	tie	20 years	2 of 100 (Routine)
26 February 1976	Rodeo (Smn), MX	daily high min	18.9 C (66.0 F)	7.2 C (13.0 F)	38 years	34 of 100 (Routine)
26 February 1976	Rodeo (Smn), MX	daily rain	15.7 mm (0.6 in)	13.4 mm (0.5 in)	44 years	20 of 100 (Routine)
26 February 1976	Rodeo (Smn), MX	daily high max	35.0 C (95.0 F)	2.2 C (4.0 F)	32 years	19 of 100 (Routine)
25 February 1976	Rodeo (Smn), MX	daily high max	38.9 C (102.0 F)	6.1 C (11.0 F)	32 years	29 of 100 (Routine)
25 February 1976	Rodeo (Smn), MX	daily high min	18.9 C (66.0 F)	5.0 C (9.0 F)	42 years	29 of 100 (Routine)
25 February 1976	Rodeo (Smn), MX	daily rain	5.3 mm (0.21 in)	5.3 mm (0.21 in)	48 years	20 of 100 (Routine)
24 February 1976	Rodeo (Smn), MX	daily high min	18.9 C (66.0 F)	5.0 C (9.0 F)	38 years	28 of 100 (Routine)
24 February 1976	Rodeo (Smn), MX	monthly high max	40.6 C (105.1 F)	1.7 C (3.1 F)	0 years	19 of 100 (Routine)
23 February 1976	Rodeo (Smn), MX	daily high min	16.7 C (62.1 F)	2.8 C (5.0 F)	42 years	24 of 100 (Routine)
23 February 1976	Rodeo (Smn), MX	monthly high max	38.9 C (102.0 F)	1.1 C (2.0 F)	18 years	22 of 100 (Routine)
22 February 1976	Rodeo (Smn), MX	daily high max	35.6 C (96.1 F)	2.8 C (5.0 F)	4 years	13 of 100 (Routine)
22 February 1976	Rodeo (Smn), MX	daily high min (Tie)	15.0 C (59.0 F)	tie	42 years	4 of 100 (Routine)
21 February 1976	Rodeo (Smn), MX	daily high max	35.0 C (95.0 F)	2.2 C (4.0 F)	16 years	15 of 100 (Routine)
20 February 1976	Rodeo (Smn), MX	daily high min	17.8 C (64.0 F)	5.0 C (9.0 F)	46 years	31 of 100 (Routine)

Climate Trend

45 complete years, 1927 to 1975

One stripe for each of 45 complete years at Rodeo (Smn), 1927 to 1975. Blue stripes are years cooler than the station's own mean of 20.3 C (68.5 F); red stripes are warmer. The coolest year was 1968, at 19.6 C (67.4 F), and the warmest was 1954, at 21.2 C (70.1 F). The strongest colour marks a difference of 0.9 C (1.6 F).

Annual mean temperature at Rodeo (Smn) as warming stripes, 1927 to 1975
Year	Annual mean temperature	Difference from the station mean
1927	20.0 C	-0.30 C
1928	19.8 C	-0.54 C
1929	19.7 C	-0.58 C
1930	20.0 C	-0.28 C
1931	19.7 C	-0.63 C
1933	20.3 C	+0.00 C
1934	20.1 C	-0.16 C
1935	20.3 C	-0.04 C
1936	20.1 C	-0.24 C
1937	20.7 C	+0.37 C
1938	19.9 C	-0.39 C
1939	20.0 C	-0.28 C
1940	19.8 C	-0.52 C
1942	20.3 C	-0.04 C
1943	19.8 C	-0.52 C
1944	19.9 C	-0.41 C
1945	21.0 C	+0.75 C
1946	20.9 C	+0.58 C
1947	20.1 C	-0.21 C
1948	20.8 C	+0.52 C
1949	20.9 C	+0.56 C
1950	21.0 C	+0.68 C
1952	20.7 C	+0.43 C
1953	20.6 C	+0.34 C
1954	21.2 C	+0.88 C
1955	20.5 C	+0.17 C
1956	20.3 C	+0.01 C
1957	21.1 C	+0.82 C
1958	20.4 C	+0.09 C
1959	20.4 C	+0.13 C
1960	20.4 C	+0.09 C
1961	20.2 C	-0.08 C
1962	20.9 C	+0.60 C
1963	20.8 C	+0.55 C
1964	20.1 C	-0.18 C
1965	20.2 C	-0.07 C
1966	19.8 C	-0.49 C
1967	20.1 C	-0.21 C
1968	19.6 C	-0.65 C
1969	20.5 C	+0.19 C
1970	19.8 C	-0.47 C
1971	20.3 C	-0.03 C
1972	20.6 C	+0.28 C
1973	19.8 C	-0.54 C
1975	20.0 C	-0.28 C

The fitted trend in annual mean temperature here over 1927 to 1975 is 0.05 C (-0.04 to 0.14) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.1 F (-0.1 to 0.3) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Rodeo (Smn)
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.05 C (-0.04 to 0.14) per decade	0.1 F (-0.1 to 0.3) per decade	1927 to 1975	45	Not clearly different from zero
Mean daily maximum	0.3 C (0.2 to 0.5) per decade	0.6 F (0.4 to 0.8) per decade	1927 to 1975	45	Rise
Mean daily minimum	-0.2 C (-0.3 to -0.1) per decade	-0.4 F (-0.6 to -0.2) per decade	1927 to 1975	45	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

1926 to 1976

Yearly extremes at Rodeo (Smn): the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	46.7 C (116.1 F)	1969	40.6 C (105.1 F)	50
Coldest night (TNn)	-10.6 C (12.9 F)	1962	-5.0 C (23.0 F)	50
Wettest day (Rx1day)	89.9 mm (3.5 in)	1949	40.9 mm (1.6 in)	50
Wettest five days (Rx5day)	132.9 mm (5.2 in)	1938	76.0 mm (3.0 in)	50
Longest dry spell (CDD)	183 days	1929	91 days	50

Hottest day (TXx)

The hottest day of the year at Rodeo (Smn), 1926 to 1976. The record is 46.7 C (116.1 F) in 1969, marked on the chart; the median year is 40.6 C (105.1 F).

Hottest day (TXx) at Rodeo (Smn) by year
Year	Hottest day (TXx)
1926	36.7 C (98.1 F)
1927	40.0 C (104.0 F)
1928	40.0 C (104.0 F)
1929	40.6 C (105.1 F)
1930	40.0 C (104.0 F)
1931	36.7 C (98.1 F)
1932	41.7 C (107.1 F)
1933	40.0 C (104.0 F)
1934	40.0 C (104.0 F)
1935	37.8 C (100.0 F)
1936	40.6 C (105.1 F)
1937	40.6 C (105.1 F)
1938	38.9 C (102.0 F)
1939	40.0 C (104.0 F)
1940	38.9 C (102.0 F)
1942	40.6 C (105.1 F)
1943	40.6 C (105.1 F)
1944	40.6 C (105.1 F)
1945	41.7 C (107.1 F)
1946	40.0 C (104.0 F)
1947	40.6 C (105.1 F)
1948	40.0 C (104.0 F)
1949	40.6 C (105.1 F)
1950	40.6 C (105.1 F)
1951	42.8 C (109.0 F)
1952	40.6 C (105.1 F)
1953	42.8 C (109.0 F)
1954	41.7 C (107.1 F)
1955	40.6 C (105.1 F)
1956	38.9 C (102.0 F)
1957	40.6 C (105.1 F)
1958	40.0 C (104.0 F)
1959	41.7 C (107.1 F)
1960	42.8 C (109.0 F)
1961	41.7 C (107.1 F)
1962	43.3 C (109.9 F)
1963	40.0 C (104.0 F)
1964	41.7 C (107.1 F)
1965	41.1 C (106.0 F)
1966	41.1 C (106.0 F)
1967	41.7 C (107.1 F)
1968	40.0 C (104.0 F)
1969	46.7 C (116.1 F)
1970	41.1 C (106.0 F)
1971	40.6 C (105.1 F)
1972	42.2 C (108.0 F)
1973	41.7 C (107.1 F)
1974	42.8 C (109.0 F)
1975	42.2 C (108.0 F)
1976	40.6 C (105.1 F)

Coldest night (TNn)

The coldest night of the year at Rodeo (Smn), 1926 to 1976. The record is -10.6 C (12.9 F) in 1962, marked on the chart; the median year is -5.0 C (23.0 F).

Coldest night (TNn) at Rodeo (Smn) by year
Year	Coldest night (TNn)
1926	-6.1 C (21.0 F)
1927	-6.1 C (21.0 F)
1928	-5.0 C (23.0 F)
1929	-5.6 C (21.9 F)
1930	-1.1 C (30.0 F)
1931	-5.0 C (23.0 F)
1932	-5.0 C (23.0 F)
1933	-7.2 C (19.0 F)
1934	-5.0 C (23.0 F)
1935	-8.3 C (17.1 F)
1936	-4.4 C (24.1 F)
1937	-1.1 C (30.0 F)
1938	-5.0 C (23.0 F)
1939	-4.4 C (24.1 F)
1940	-5.0 C (23.0 F)
1942	-8.3 C (17.1 F)
1943	-3.3 C (26.1 F)
1944	-8.3 C (17.1 F)
1945	-2.2 C (28.0 F)
1946	-5.0 C (23.0 F)
1947	-7.2 C (19.0 F)
1948	-5.0 C (23.0 F)
1949	-6.1 C (21.0 F)
1950	-3.3 C (26.1 F)
1951	-9.4 C (15.1 F)
1952	-4.4 C (24.1 F)
1953	-7.2 C (19.0 F)
1954	-7.2 C (19.0 F)
1955	-8.3 C (17.1 F)
1956	-7.2 C (19.0 F)
1957	-5.0 C (23.0 F)
1958	-4.4 C (24.1 F)
1959	-4.4 C (24.1 F)
1960	-5.0 C (23.0 F)
1961	-5.6 C (21.9 F)
1962	-10.6 C (12.9 F)
1963	-6.1 C (21.0 F)
1964	-7.8 C (18.0 F)
1965	-3.9 C (25.0 F)
1966	-6.1 C (21.0 F)
1967	-6.7 C (19.9 F)
1968	-3.9 C (25.0 F)
1969	-2.8 C (27.0 F)
1970	-5.0 C (23.0 F)
1971	-4.4 C (24.1 F)
1972	-2.8 C (27.0 F)
1973	-6.7 C (19.9 F)
1974	-5.0 C (23.0 F)
1975	0.0 C (32.0 F)
1976	0.0 C (32.0 F)

Wettest day (Rx1day)

The wettest day of the year at Rodeo (Smn), 1926 to 1976. The record is 89.9 mm (3.5 in) in 1949, marked on the chart; the median year is 40.9 mm (1.6 in).

Wettest day (Rx1day) at Rodeo (Smn) by year
Year	Wettest day (Rx1day)
1926	85.3 mm (3.4 in)
1927	41.4 mm (1.6 in)
1928	48.3 mm (1.9 in)
1929	34.3 mm (1.4 in)
1930	59.9 mm (2.4 in)
1931	43.4 mm (1.7 in)
1932	36.8 mm (1.4 in)
1933	26.4 mm (1.0 in)
1934	34.8 mm (1.4 in)
1935	39.9 mm (1.6 in)
1936	82.3 mm (3.2 in)
1937	41.9 mm (1.6 in)
1938	50.3 mm (2.0 in)
1939	39.9 mm (1.6 in)
1940	30.0 mm (1.2 in)
1942	41.9 mm (1.6 in)
1943	51.3 mm (2.0 in)
1944	54.1 mm (2.1 in)
1945	57.9 mm (2.3 in)
1946	64.8 mm (2.6 in)
1947	38.4 mm (1.5 in)
1948	46.0 mm (1.8 in)
1949	89.9 mm (3.5 in)
1950	29.0 mm (1.1 in)
1951	33.8 mm (1.3 in)
1952	23.4 mm (0.9 in)
1953	28.4 mm (1.1 in)
1954	20.3 mm (0.8 in)
1955	46.0 mm (1.8 in)
1956	63.0 mm (2.5 in)
1957	36.3 mm (1.4 in)
1958	37.3 mm (1.5 in)
1959	20.8 mm (0.8 in)
1960	38.4 mm (1.5 in)
1961	40.4 mm (1.6 in)
1962	34.8 mm (1.4 in)
1963	43.4 mm (1.7 in)
1964	42.2 mm (1.7 in)
1965	28.4 mm (1.1 in)
1966	41.9 mm (1.6 in)
1967	34.8 mm (1.4 in)
1968	53.8 mm (2.1 in)
1969	19.8 mm (0.8 in)
1970	52.8 mm (2.1 in)
1971	33.0 mm (1.3 in)
1972	58.9 mm (2.3 in)
1973	32.3 mm (1.3 in)
1974	48.8 mm (1.9 in)
1975	53.3 mm (2.1 in)
1976	15.7 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Rodeo (Smn), 1926 to 1976. The record is 132.9 mm (5.2 in) in 1938, marked on the chart; the median year is 76.0 mm (3.0 in).

Wettest five days (Rx5day) at Rodeo (Smn) by year
Year	Wettest five days (Rx5day)
1926	94.9 mm (3.7 in)
1927	48.6 mm (1.9 in)
1928	91.7 mm (3.6 in)
1929	51.6 mm (2.0 in)
1930	64.2 mm (2.5 in)
1931	86.4 mm (3.4 in)
1932	92.0 mm (3.6 in)
1933	76.6 mm (3.0 in)
1934	58.7 mm (2.3 in)
1935	99.8 mm (3.9 in)
1936	98.3 mm (3.9 in)
1937	92.5 mm (3.6 in)
1938	132.9 mm (5.2 in)
1939	51.6 mm (2.0 in)
1940	48.3 mm (1.9 in)
1942	78.3 mm (3.1 in)
1943	109.5 mm (4.3 in)
1944	101.2 mm (4.0 in)
1945	96.8 mm (3.8 in)
1946	91.0 mm (3.6 in)
1947	68.1 mm (2.7 in)
1948	75.8 mm (3.0 in)
1949	91.2 mm (3.6 in)
1950	42.5 mm (1.7 in)
1951	60.2 mm (2.4 in)
1952	56.9 mm (2.2 in)
1953	61.9 mm (2.4 in)
1954	35.6 mm (1.4 in)
1955	64.3 mm (2.5 in)
1956	67.0 mm (2.6 in)
1957	53.3 mm (2.1 in)
1958	68.3 mm (2.7 in)
1959	44.7 mm (1.8 in)
1960	45.3 mm (1.8 in)
1961	95.3 mm (3.8 in)
1962	76.2 mm (3.0 in)
1963	61.9 mm (2.4 in)
1964	78.2 mm (3.1 in)
1965	65.7 mm (2.6 in)
1966	110.3 mm (4.3 in)
1967	86.2 mm (3.4 in)
1968	113.2 mm (4.5 in)
1969	42.9 mm (1.7 in)
1970	119.3 mm (4.7 in)
1971	88.4 mm (3.5 in)
1972	66.3 mm (2.6 in)
1973	120.2 mm (4.7 in)
1974	93.8 mm (3.7 in)
1975	69.1 mm (2.7 in)
1976	35.2 mm (1.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Rodeo (Smn), 1926 to 1976. The record is 183 days in 1929, marked on the chart; the median year is 91 days.

Longest dry spell (CDD) at Rodeo (Smn) by year
Year	Longest dry spell (CDD)
1926	48 days
1927	94 days
1928	84 days
1929	183 days
1930	77 days
1931	87 days
1932	112 days
1933	117 days
1934	117 days
1935	120 days
1936	106 days
1937	97 days
1938	63 days
1939	83 days
1940	97 days
1942	106 days
1943	112 days
1944	73 days
1945	116 days
1946	87 days
1947	121 days
1948	68 days
1949	89 days
1950	157 days
1951	37 days
1952	134 days
1953	91 days
1954	159 days
1955	156 days
1956	112 days
1957	77 days
1958	54 days
1959	134 days
1960	153 days
1961	70 days
1962	90 days
1963	98 days
1964	54 days
1965	83 days
1966	76 days
1967	49 days
1968	39 days
1969	127 days
1970	91 days
1971	147 days
1972	63 days
1973	80 days
1974	74 days
1975	143 days
1976	30 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

44 years with a frost

Across 44 years with a frost, the median last spring frost at Rodeo (Smn) falls on 28 February and the median first autumn frost on 25 November, which leaves a median of 270 days between them.

Fitted over all years, the growing season changes by +2.0 days per decade at this station.

Frost dates and growing season at Rodeo (Smn)
Measure	Median, all years	Earliest period	Recent period (1943 to 1973)	Recent against earliest	Fitted trend
Last spring frost	28 February	n/a	26 February	n/a	-1.2 days per decade
First autumn frost	25 November	n/a	26 November	n/a	+0.8 days per decade
Growing days	270 days	n/a	265 days	n/a	+2.0 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

48 years, 1927 to 1975

A day with at least 40.5 mm (1.6 in) of rain is expected about once in 2 years. A day with at least 87.0 mm (3.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Rodeo (Smn): the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	40.5 mm (1.6 in)
5 years	53.3 mm (2.1 in)
10 years	61.6 mm (2.4 in)
25 years	72.0 mm (2.8 in)
50 years	79.6 mm (3.1 in)	Longer than the 48 years of record
100 years	87.0 mm (3.4 in)	Longer than the 48 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, 48 years of values from 1927 to 1975.

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: 89.9 mm (3.5 in) in 1949; 82.3 mm (3.2 in) in 1936; 64.8 mm (2.6 in) in 1946.

Download the Data

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