Imuris (Smn) Weather Records (MXN00026045)

Record envelope, standing records and threshold days for Imuris (Smn) (MXN00026045), Mexico, with 75 years of record.

Key Facts for Imuris (Smn)

Imuris (Smn) (MXN00026045) is a weather station in Mexico at 30.78 latitude and -110.85 longitude, 840 m (2,755 ft) above sea level.
The station reports from 1938 to 2012, 75 years of record.
1,464 records set at Imuris (Smn) still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Imuris (Smn) tied a daily record low minimum temperature of -1.1 C (30.0 F) on 11 November 2012.

About the Station

Location: Mexico, 30.78 latitude, -110.85 longitude.
Elevation: 840 m (2,755 ft).
Period of record: 1938 to 2012, 75 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 Imuris (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 Imuris (Smn), with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	40.0 C (104.0 F)	-11.1 C (12.0 F)	n/a	n/a
Feb	40.6 C (105.1 F)	-9.4 C (15.1 F)	n/a	n/a
Mar	37.8 C (100.0 F)	-9.4 C (15.1 F)	n/a	n/a
Apr	40.6 C (105.1 F)	-3.3 C (26.1 F)	n/a	n/a
May	45.6 C (114.1 F)	0.0 C (32.0 F)	n/a	n/a
Jun	46.7 C (116.1 F)	5.0 C (41.0 F)	n/a	n/a
Jul	46.7 C (116.1 F)	5.6 C (42.1 F)	n/a	n/a
Aug	45.6 C (114.1 F)	10.6 C (51.1 F)	n/a	n/a
Sep	46.7 C (116.1 F)	0.6 C (33.1 F)	n/a	n/a
Oct	41.7 C (107.1 F)	-5.0 C (23.0 F)	n/a	n/a
Nov	40.0 C (104.0 F)	-7.2 C (19.0 F)	n/a	n/a
Dec	40.0 C (104.0 F)	-12.2 C (10.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Imuris (Smn) still stand. 1987 holds the most, with 124.

Standing records at Imuris (Smn) by the year they were set
Year set	Standing records
1938	11
1943	5
1944	30
1945	1
1946	28
1947	66
1948	26
1949	30
1950	20
1951	37
1952	24
1953	26
1954	30
1955	21
1956	18
1957	25
1958	36
1959	17
1960	23
1961	9
1962	17
1963	9
1964	9
1965	37
1966	17
1967	34
1968	32
1969	31
1970	26
1971	24
1972	35
1973	18
1974	9
1975	27
1976	11
1977	8
1978	15
1979	20
1980	14
1981	7
1982	10
1983	19
1984	17
1985	22
1986	108
1987	124
1988	10
1989	8
1990	14
1991	15
1992	7
1993	5
1994	8
1995	3
1996	8
1997	10
1998	7
1999	6
2000	11
2001	6
2002	9
2003	12
2004	26
2005	15
2006	15
2007	17
2008	10
2009	14
2010	16
2011	17
2012	12

All-Time Record Progression

4 new records

4 all-time records were set at Imuris (Smn) between 8 December 1978 and 11 November 1994. Each dot is a new record.

When Imuris (Smn) set new all-time records
Date	Kind	Detail
1978-12-08	Record low minimum temperature	Record low minimum temperature -12.2 C (10.0 F)
1981-07-12	Record daily precipitation	Record daily precipitation 89.9 mm (3.5 in)
1984-08-08	Record daily precipitation	Record daily precipitation 95.0 mm (3.7 in)
1994-11-11	Record daily precipitation	Record daily precipitation 126.0 mm (5.0 in)

Wettest Day of Each Month

Nov: 126.0 mm (5.0 in)

The wettest day on record for each calendar month at Imuris (Smn). The most was 126.0 mm (5.0 in) on 11 November 1994.

Record daily precipitation for each month at Imuris (Smn)
Month	Record daily precipitation (mm)	Date
Jan	65.8 mm (2.6 in)	17 January 1993
Feb	49.8 mm (2.0 in)	10 February 1976
Mar	52.3 mm (2.1 in)	9 March 1968
Apr	45.0 mm (1.8 in)	5 April 2001
May	24.9 mm (1.0 in)	13 May 1987
Jun	59.9 mm (2.4 in)	3 June 1952
Jul	89.9 mm (3.5 in)	12 July 1981
Aug	95.0 mm (3.7 in)	8 August 1984
Sep	82.8 mm (3.3 in)	23 September 1958
Oct	70.9 mm (2.8 in)	11 October 2000
Nov	126.0 mm (5.0 in)	11 November 1994
Dec	79.8 mm (3.1 in)	5 December 1994

Period of Record Coverage

1938 to 2012

71 years of record at Imuris (Smn), 1938 to 2012. 5 years have data for under 90 percent of days and are left out of rankings: 1938, 1943, 1944, 1945, 1947.

Days with data per year at Imuris (Smn)
Year	Days with data	Share of year	Complete
1938	181	50%	No
1943	31	8%	No
1944	184	50%	No
1945	28	8%	No
1946	332	91%	Yes
1947	290	79%	No
1948	334	91%	Yes
1949	362	99%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	365	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	364	100%	Yes
1956	365	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	364	100%	Yes
1960	365	100%	Yes
1961	359	98%	Yes
1962	364	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	364	100%	Yes
1966	362	99%	Yes
1967	364	100%	Yes
1968	364	99%	Yes
1969	333	91%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	364	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	364	100%	Yes
1978	364	100%	Yes
1979	363	99%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	364	100%	Yes
1983	362	99%	Yes
1984	363	99%	Yes
1985	362	99%	Yes
1986	361	99%	Yes
1987	363	99%	Yes
1988	364	99%	Yes
1989	334	92%	Yes
1990	361	99%	Yes
1991	364	100%	Yes
1992	365	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	334	92%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	332	91%	Yes
2003	359	98%	Yes
2004	366	100%	Yes
2005	361	99%	Yes
2006	364	100%	Yes
2007	364	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	351	96%	Yes
2012	335	92%	Yes

Latest Records

Latest records at Imuris (Smn)
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 November 2012	Imuris (Smn), MX	daily low min (Tie)	-1.1 C (30.0 F)	tie	26 years	3 of 100 (Routine)
10 November 2012	Imuris (Smn), MX	daily low max	13.9 C (57.0 F)	6.1 C (11.0 F)	46 years	31 of 100 (Routine)
28 September 2012	Imuris (Smn), MX	daily low max	28.9 C (84.0 F)	1.1 C (2.0 F)	54 years	26 of 100 (Routine)
23 September 2012	Imuris (Smn), MX	daily high max (Tie)	40.6 C (105.1 F)	tie	7 years	2 of 100 (Routine)
17 August 2012	Imuris (Smn), MX	daily low max	25.6 C (78.1 F)	3.3 C (5.9 F)	29 years	25 of 100 (Routine)
29 July 2012	Imuris (Smn), MX	daily low max	27.8 C (82.0 F)	0.5 C (0.9 F)	6 years	9 of 100 (Routine)
13 July 2012	Imuris (Smn), MX	daily low max	28.3 C (82.9 F)	1.7 C (3.1 F)	20 years	17 of 100 (Routine)
3 July 2012	Imuris (Smn), MX	daily low max	26.7 C (80.1 F)	6.1 C (11.0 F)	38 years	34 of 100 (Routine)
15 June 2012	Imuris (Smn), MX	daily low min (Tie)	10.0 C (50.0 F)	tie	36 years	4 of 100 (Routine)
25 May 2012	Imuris (Smn), MX	daily high min	19.4 C (66.9 F)	1.6 C (2.9 F)	54 years	27 of 100 (Routine)
15 May 2012	Imuris (Smn), MX	daily high max (Tie)	40.0 C (104.0 F)	tie	42 years	4 of 100 (Routine)
14 May 2012	Imuris (Smn), MX	daily high max	40.0 C (104.0 F)	0.6 C (1.1 F)	6 years	9 of 100 (Routine)
14 April 2012	Imuris (Smn), MX	daily low max	17.8 C (64.0 F)	1.1 C (2.0 F)	29 years	17 of 100 (Routine)
18 March 2012	Imuris (Smn), MX	daily high min	10.6 C (51.1 F)	0.6 C (1.1 F)	55 years	24 of 100 (Routine)
18 March 2012	Imuris (Smn), MX	daily low max	11.7 C (53.1 F)	3.3 C (5.9 F)	26 years	20 of 100 (Routine)
29 February 2012	Imuris (Smn), MX	daily low min	-2.2 C (28.0 F)	0.5 C (0.9 F)	8 years	10 of 100 (Routine)
16 February 2012	Imuris (Smn), MX	daily rain (Tie)	5.8 mm (0.23 in)	tie	32 years	4 of 100 (Routine)
23 December 2011	Imuris (Smn), MX	daily low min	-5.0 C (23.0 F)	0.6 C (1.1 F)	32 years	17 of 100 (Routine)
19 December 2011	Imuris (Smn), MX	daily low max	8.9 C (48.0 F)	1.1 C (2.0 F)	44 years	21 of 100 (Routine)
13 December 2011	Imuris (Smn), MX	daily rain	21.6 mm (0.9 in)	7.1 mm (0.28 in)	44 years	20 of 100 (Routine)

Climate Trend

59 complete years, 1949 to 2011

One stripe for each of 59 complete years at Imuris (Smn), 1949 to 2011. Blue stripes are years cooler than the station's own mean of 19.4 C (66.9 F); red stripes are warmer. The coolest year was 1975, at 17.8 C (64.1 F), and the warmest was 1972, at 21.4 C (70.5 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at Imuris (Smn) as warming stripes, 1949 to 2011
Year	Annual mean temperature	Difference from the station mean
1949	19.6 C	+0.14 C
1950	21.2 C	+1.75 C
1951	19.8 C	+0.37 C
1952	19.6 C	+0.19 C
1953	19.9 C	+0.47 C
1954	20.7 C	+1.24 C
1955	19.1 C	-0.29 C
1956	19.8 C	+0.42 C
1957	19.9 C	+0.45 C
1958	19.7 C	+0.33 C
1959	19.6 C	+0.17 C
1960	19.4 C	0.00 C
1961	19.3 C	-0.08 C
1962	19.9 C	+0.45 C
1963	20.1 C	+0.70 C
1964	19.1 C	-0.32 C
1965	19.9 C	+0.50 C
1966	20.6 C	+1.23 C
1967	20.4 C	+1.03 C
1968	20.4 C	+1.01 C
1970	20.6 C	+1.16 C
1971	20.2 C	+0.77 C
1972	21.4 C	+1.98 C
1973	20.6 C	+1.23 C
1974	18.4 C	-1.05 C
1975	17.8 C	-1.59 C
1976	18.5 C	-0.96 C
1977	19.2 C	-0.21 C
1978	18.8 C	-0.61 C
1979	18.7 C	-0.67 C
1980	19.2 C	-0.22 C
1981	19.5 C	+0.06 C
1982	18.3 C	-1.08 C
1983	18.0 C	-1.46 C
1984	17.9 C	-1.53 C
1985	18.1 C	-1.34 C
1986	18.5 C	-0.92 C
1987	18.2 C	-1.18 C
1988	18.6 C	-0.81 C
1990	18.8 C	-0.60 C
1991	18.3 C	-1.09 C
1992	18.9 C	-0.53 C
1993	19.6 C	+0.20 C
1994	20.0 C	+0.63 C
1995	19.4 C	+0.02 C
1996	19.5 C	+0.12 C
1997	18.6 C	-0.85 C
1999	19.3 C	-0.09 C
2000	19.7 C	+0.27 C
2001	19.3 C	-0.16 C
2003	19.9 C	+0.47 C
2004	19.5 C	+0.06 C
2005	19.9 C	+0.44 C
2006	19.6 C	+0.18 C
2007	19.8 C	+0.41 C
2008	19.6 C	+0.16 C
2009	19.7 C	+0.24 C
2010	18.7 C	-0.68 C
2011	19.0 C	-0.37 C

The annual mean temperature here has fallen by 0.14 C (0.03 to 0.25) per decade over 1949 to 2011. In Fahrenheit: 0.2 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 59 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Imuris (Smn)
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	-0.14 C (-0.25 to -0.03) per decade	-0.2 F (-0.4 to -0.1) per decade	1949 to 2011	59	Fall
Mean daily maximum	-0.02 C (-0.19 to 0.16) per decade	-0.03 F (-0.34 to 0.28) per decade	1949 to 2011	59	Not clearly different from zero
Mean daily minimum	-0.3 C (-0.4 to -0.1) per decade	-0.5 F (-0.8 to -0.2) per decade	1949 to 2011	59	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

1938 to 2012

Yearly extremes at Imuris (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)	1946	43.9 C (111.0 F)	71
Coldest night (TNn)	-12.2 C (10.0 F)	1978	-4.4 C (24.1 F)	71
Wettest day (Rx1day)	126.0 mm (5.0 in)	1994	49.8 mm (2.0 in)	71
Wettest five days (Rx5day)	165.3 mm (6.5 in)	1994	71.9 mm (2.8 in)	71
Longest dry spell (CDD)	160 days	1956	74 days	71

Hottest day (TXx)

The hottest day of the year at Imuris (Smn), 1938 to 2012. The record is 46.7 C (116.1 F) in 1946, marked on the chart; the median year is 43.9 C (111.0 F).

Hottest day (TXx) at Imuris (Smn) by year
Year	Hottest day (TXx)
1938	45.0 C (113.0 F)
1943	38.9 C (102.0 F)
1944	45.0 C (113.0 F)
1945	26.7 C (80.1 F)
1946	46.7 C (116.1 F)
1947	45.0 C (113.0 F)
1948	42.8 C (109.0 F)
1949	43.9 C (111.0 F)
1950	43.9 C (111.0 F)
1951	43.9 C (111.0 F)
1952	42.8 C (109.0 F)
1953	43.9 C (111.0 F)
1954	42.8 C (109.0 F)
1955	45.0 C (113.0 F)
1956	45.0 C (113.0 F)
1957	45.0 C (113.0 F)
1958	45.6 C (114.1 F)
1959	43.9 C (111.0 F)
1960	45.6 C (114.1 F)
1961	43.9 C (111.0 F)
1962	42.8 C (109.0 F)
1963	43.9 C (111.0 F)
1964	45.0 C (113.0 F)
1965	45.6 C (114.1 F)
1966	43.9 C (111.0 F)
1967	43.9 C (111.0 F)
1968	46.7 C (116.1 F)
1969	42.8 C (109.0 F)
1970	46.7 C (116.1 F)
1971	46.7 C (116.1 F)
1972	45.6 C (114.1 F)
1973	45.6 C (114.1 F)
1974	43.3 C (109.9 F)
1975	41.7 C (107.1 F)
1976	43.9 C (111.0 F)
1977	42.8 C (109.0 F)
1978	43.9 C (111.0 F)
1979	45.0 C (113.0 F)
1980	43.9 C (111.0 F)
1981	43.9 C (111.0 F)
1982	43.9 C (111.0 F)
1983	43.9 C (111.0 F)
1984	42.8 C (109.0 F)
1985	43.9 C (111.0 F)
1986	45.0 C (113.0 F)
1987	46.7 C (116.1 F)
1988	41.7 C (107.1 F)
1989	43.3 C (109.9 F)
1990	45.0 C (113.0 F)
1991	41.7 C (107.1 F)
1992	41.7 C (107.1 F)
1993	43.9 C (111.0 F)
1994	42.8 C (109.0 F)
1995	41.7 C (107.1 F)
1996	40.6 C (105.1 F)
1997	40.6 C (105.1 F)
1998	41.7 C (107.1 F)
1999	40.0 C (104.0 F)
2000	40.6 C (105.1 F)
2001	42.8 C (109.0 F)
2002	43.9 C (111.0 F)
2003	45.0 C (113.0 F)
2004	43.3 C (109.9 F)
2005	46.1 C (115.0 F)
2006	46.7 C (116.1 F)
2007	46.1 C (115.0 F)
2008	45.0 C (113.0 F)
2009	42.2 C (108.0 F)
2010	42.8 C (109.0 F)
2011	44.4 C (111.9 F)
2012	43.3 C (109.9 F)

Coldest night (TNn)

The coldest night of the year at Imuris (Smn), 1938 to 2012. The record is -12.2 C (10.0 F) in 1978, marked on the chart; the median year is -4.4 C (24.1 F).

Coldest night (TNn) at Imuris (Smn) by year
Year	Coldest night (TNn)
1938	0.0 C (32.0 F)
1943	18.9 C (66.0 F)
1944	0.0 C (32.0 F)
1945	-2.8 C (27.0 F)
1946	0.0 C (32.0 F)
1947	-0.6 C (30.9 F)
1948	-6.1 C (21.0 F)
1949	-5.0 C (23.0 F)
1950	-1.1 C (30.0 F)
1951	-1.1 C (30.0 F)
1952	-3.3 C (26.1 F)
1953	-5.0 C (23.0 F)
1954	-5.0 C (23.0 F)
1955	-5.0 C (23.0 F)
1956	-5.0 C (23.0 F)
1957	0.0 C (32.0 F)
1958	-4.4 C (24.1 F)
1959	-4.4 C (24.1 F)
1960	-7.2 C (19.0 F)
1961	-1.1 C (30.0 F)
1962	-6.1 C (21.0 F)
1963	-5.0 C (23.0 F)
1964	-3.9 C (25.0 F)
1965	-4.4 C (24.1 F)
1966	0.0 C (32.0 F)
1967	-3.3 C (26.1 F)
1968	-5.0 C (23.0 F)
1969	-1.1 C (30.0 F)
1970	-1.1 C (30.0 F)
1971	-0.6 C (30.9 F)
1972	0.0 C (32.0 F)
1973	0.0 C (32.0 F)
1974	-5.0 C (23.0 F)
1975	-6.1 C (21.0 F)
1976	-5.0 C (23.0 F)
1977	-4.4 C (24.1 F)
1978	-12.2 C (10.0 F)
1979	-5.0 C (23.0 F)
1980	-3.3 C (26.1 F)
1981	-4.4 C (24.1 F)
1982	-4.4 C (24.1 F)
1983	-3.3 C (26.1 F)
1984	-4.4 C (24.1 F)
1985	-8.3 C (17.1 F)
1986	-8.3 C (17.1 F)
1987	-11.1 C (12.0 F)
1988	-6.7 C (19.9 F)
1989	-4.4 C (24.1 F)
1990	-5.0 C (23.0 F)
1991	-3.3 C (26.1 F)
1992	-4.4 C (24.1 F)
1993	-2.2 C (28.0 F)
1994	-3.3 C (26.1 F)
1995	-3.3 C (26.1 F)
1996	-3.3 C (26.1 F)
1997	-4.4 C (24.1 F)
1998	-3.3 C (26.1 F)
1999	-4.4 C (24.1 F)
2000	-5.0 C (23.0 F)
2001	-3.3 C (26.1 F)
2002	-4.4 C (24.1 F)
2003	-6.1 C (21.0 F)
2004	-6.1 C (21.0 F)
2005	-6.7 C (19.9 F)
2006	-6.7 C (19.9 F)
2007	-6.1 C (21.0 F)
2008	-5.0 C (23.0 F)
2009	-5.6 C (21.9 F)
2010	-5.0 C (23.0 F)
2011	-9.4 C (15.1 F)
2012	-4.4 C (24.1 F)

Wettest day (Rx1day)

The wettest day of the year at Imuris (Smn), 1938 to 2012. The record is 126.0 mm (5.0 in) in 1994, marked on the chart; the median year is 49.8 mm (2.0 in).

Wettest day (Rx1day) at Imuris (Smn) by year
Year	Wettest day (Rx1day)
1938	53.8 mm (2.1 in)
1943	30.0 mm (1.2 in)
1944	59.9 mm (2.4 in)
1945	0.0 mm (0.00 in)
1946	56.9 mm (2.2 in)
1947	43.4 mm (1.7 in)
1948	46.0 mm (1.8 in)
1949	49.8 mm (2.0 in)
1950	49.8 mm (2.0 in)
1951	39.9 mm (1.6 in)
1952	59.9 mm (2.4 in)
1953	51.8 mm (2.0 in)
1954	69.9 mm (2.8 in)
1955	61.0 mm (2.4 in)
1956	62.0 mm (2.4 in)
1957	35.8 mm (1.4 in)
1958	82.8 mm (3.3 in)
1959	41.9 mm (1.6 in)
1960	63.8 mm (2.5 in)
1961	30.5 mm (1.2 in)
1962	37.8 mm (1.5 in)
1963	29.0 mm (1.1 in)
1964	45.0 mm (1.8 in)
1965	46.0 mm (1.8 in)
1966	54.9 mm (2.2 in)
1967	70.9 mm (2.8 in)
1968	52.3 mm (2.1 in)
1969	45.0 mm (1.8 in)
1970	34.8 mm (1.4 in)
1971	49.5 mm (1.9 in)
1972	45.0 mm (1.8 in)
1973	74.9 mm (2.9 in)
1974	59.9 mm (2.4 in)
1975	47.0 mm (1.9 in)
1976	49.8 mm (2.0 in)
1977	65.3 mm (2.6 in)
1978	70.9 mm (2.8 in)
1979	57.9 mm (2.3 in)
1980	41.4 mm (1.6 in)
1981	89.9 mm (3.5 in)
1982	46.0 mm (1.8 in)
1983	59.9 mm (2.4 in)
1984	95.0 mm (3.7 in)
1985	47.0 mm (1.9 in)
1986	46.0 mm (1.8 in)
1987	55.9 mm (2.2 in)
1988	46.5 mm (1.8 in)
1989	62.0 mm (2.4 in)
1990	77.0 mm (3.0 in)
1991	38.9 mm (1.5 in)
1992	43.4 mm (1.7 in)
1993	70.9 mm (2.8 in)
1994	126.0 mm (5.0 in)
1995	67.8 mm (2.7 in)
1996	38.9 mm (1.5 in)
1997	59.9 mm (2.4 in)
1998	36.8 mm (1.4 in)
1999	49.8 mm (2.0 in)
2000	70.9 mm (2.8 in)
2001	79.8 mm (3.1 in)
2002	20.8 mm (0.8 in)
2003	21.1 mm (0.8 in)
2004	43.4 mm (1.7 in)
2005	52.1 mm (2.1 in)
2006	62.2 mm (2.4 in)
2007	35.6 mm (1.4 in)
2008	48.3 mm (1.9 in)
2009	29.5 mm (1.2 in)
2010	32.0 mm (1.3 in)
2011	35.8 mm (1.4 in)
2012	31.5 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Imuris (Smn), 1938 to 2012. The record is 165.3 mm (6.5 in) in 1994, marked on the chart; the median year is 71.9 mm (2.8 in).

Wettest five days (Rx5day) at Imuris (Smn) by year
Year	Wettest five days (Rx5day)
1938	58.4 mm (2.3 in)
1943	36.6 mm (1.4 in)
1944	89.7 mm (3.5 in)
1945	0.0 mm (0.00 in)
1946	56.9 mm (2.2 in)
1947	46.7 mm (1.8 in)
1948	62.7 mm (2.5 in)
1949	49.8 mm (2.0 in)
1950	74.7 mm (2.9 in)
1951	71.9 mm (2.8 in)
1952	63.7 mm (2.5 in)
1953	91.7 mm (3.6 in)
1954	80.0 mm (3.1 in)
1955	100.6 mm (4.0 in)
1956	121.2 mm (4.8 in)
1957	44.0 mm (1.7 in)
1958	83.9 mm (3.3 in)
1959	65.0 mm (2.6 in)
1960	85.2 mm (3.4 in)
1961	73.2 mm (2.9 in)
1962	51.1 mm (2.0 in)
1963	80.6 mm (3.2 in)
1964	71.6 mm (2.8 in)
1965	64.1 mm (2.5 in)
1966	112.5 mm (4.4 in)
1967	153.5 mm (6.0 in)
1968	70.1 mm (2.8 in)
1969	85.9 mm (3.4 in)
1970	57.7 mm (2.3 in)
1971	85.6 mm (3.4 in)
1972	93.8 mm (3.7 in)
1973	74.9 mm (2.9 in)
1974	89.4 mm (3.5 in)
1975	64.8 mm (2.6 in)
1976	60.7 mm (2.4 in)
1977	93.8 mm (3.7 in)
1978	139.3 mm (5.5 in)
1979	62.0 mm (2.4 in)
1980	44.0 mm (1.7 in)
1981	105.6 mm (4.2 in)
1982	80.3 mm (3.2 in)
1983	106.7 mm (4.2 in)
1984	117.6 mm (4.6 in)
1985	57.9 mm (2.3 in)
1986	61.0 mm (2.4 in)
1987	94.3 mm (3.7 in)
1988	99.4 mm (3.9 in)
1989	73.9 mm (2.9 in)
1990	84.1 mm (3.3 in)
1991	64.6 mm (2.5 in)
1992	67.5 mm (2.7 in)
1993	106.7 mm (4.2 in)
1994	165.3 mm (6.5 in)
1995	70.6 mm (2.8 in)
1996	62.8 mm (2.5 in)
1997	59.9 mm (2.4 in)
1998	85.3 mm (3.4 in)
1999	75.5 mm (3.0 in)
2000	130.4 mm (5.1 in)
2001	85.4 mm (3.4 in)
2002	35.1 mm (1.4 in)
2003	48.0 mm (1.9 in)
2004	48.3 mm (1.9 in)
2005	69.4 mm (2.7 in)
2006	81.6 mm (3.2 in)
2007	48.0 mm (1.9 in)
2008	94.7 mm (3.7 in)
2009	45.0 mm (1.8 in)
2010	71.9 mm (2.8 in)
2011	41.9 mm (1.6 in)
2012	40.7 mm (1.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Imuris (Smn), 1938 to 2012. The record is 160 days in 1956, marked on the chart; the median year is 74 days.

Longest dry spell (CDD) at Imuris (Smn) by year
Year	Longest dry spell (CDD)
1938	56 days
1943	6 days
1944	31 days
1945	28 days
1946	104 days
1947	57 days
1948	79 days
1949	57 days
1950	129 days
1951	76 days
1952	52 days
1953	126 days
1954	90 days
1955	84 days
1956	160 days
1957	44 days
1958	72 days
1959	73 days
1960	134 days
1961	119 days
1962	40 days
1963	72 days
1964	59 days
1965	75 days
1966	60 days
1967	58 days
1968	84 days
1969	60 days
1970	74 days
1971	56 days
1972	148 days
1973	90 days
1974	107 days
1975	86 days
1976	42 days
1977	73 days
1978	86 days
1979	58 days
1980	93 days
1981	53 days
1982	62 days
1983	51 days
1984	44 days
1985	53 days
1986	72 days
1987	66 days
1988	69 days
1989	84 days
1990	54 days
1991	77 days
1992	49 days
1993	96 days
1994	85 days
1995	121 days
1996	84 days
1997	60 days
1998	92 days
1999	82 days
2000	107 days
2001	74 days
2002	117 days
2003	72 days
2004	79 days
2005	76 days
2006	93 days
2007	53 days
2008	96 days
2009	72 days
2010	79 days
2011	125 days
2012	127 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

59 years with a frost

Across 59 years with a frost, the median last spring frost at Imuris (Smn) falls on 21 March and the median first autumn frost on 21 November, which leaves a median of 247 days between them.

Fitted over all years, the growing season changes by -6.7 days per decade at this station.

Frost dates and growing season at Imuris (Smn)
Measure	Median, all years	Earliest period	Recent period (1979 to 2011)	Recent against earliest	Fitted trend
Last spring frost	21 March	n/a	27 March	n/a	+4.4 days per decade
First autumn frost	21 November	n/a	20 November	n/a	-2.3 days per decade
Growing days	247 days	n/a	242 days	n/a	-6.7 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

65 years, 1946 to 2012

A day with at least 50.6 mm (2.0 in) of rain is expected about once in 2 years. A day with at least 108.1 mm (4.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Imuris (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	50.6 mm (2.0 in)
5 years	66.7 mm (2.6 in)
10 years	77.1 mm (3.0 in)
25 years	89.9 mm (3.5 in)
50 years	99.1 mm (3.9 in)
100 years	108.1 mm (4.3 in)	Longer than the 65 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, 65 years of values from 1946 to 2012.

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: 126.0 mm (5.0 in) in 1994; 95.0 mm (3.7 in) in 1984; 89.9 mm (3.5 in) in 1981.

Download the Data

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