La Grange Weather Records (USC00485260)

Record envelope, standing records and threshold days for La Grange (USC00485260), Wyoming, United States, with 63 years of record.

Key Facts for La Grange

La Grange (USC00485260) is a weather station in Wyoming, United States at 41.64 latitude and -104.17 longitude, 1,399 m (4,590 ft) above sea level.
The station reports from 1948 to 2010, 63 years of record.
1,464 records set at La Grange still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
La Grange set a daily record snow depth of 15.2 cm (6.0 in) on 23 February 2010.

About the Station

Location: Wyoming, United States, 41.64 latitude, -104.17 longitude.
Elevation: 1,399 m (4,590 ft).
Period of record: 1948 to 2010, 63 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 La Grange. 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 La Grange, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	21.1 C (70.0 F)	-36.7 C (-34.1 F)	n/a	n/a
Feb	26.1 C (79.0 F)	-35.6 C (-32.1 F)	n/a	n/a
Mar	27.8 C (82.0 F)	-30.6 C (-23.1 F)	n/a	n/a
Apr	31.1 C (88.0 F)	-25.0 C (-13.0 F)	n/a	n/a
May	35.0 C (95.0 F)	-11.7 C (10.9 F)	n/a	n/a
Jun	40.0 C (104.0 F)	-2.8 C (27.0 F)	n/a	n/a
Jul	42.2 C (108.0 F)	1.7 C (35.1 F)	n/a	n/a
Aug	44.4 C (111.9 F)	0.0 C (32.0 F)	n/a	n/a
Sep	43.9 C (111.0 F)	-12.8 C (9.0 F)	n/a	n/a
Oct	32.2 C (90.0 F)	-20.6 C (-5.1 F)	n/a	n/a
Nov	28.3 C (82.9 F)	-32.2 C (-26.0 F)	n/a	n/a
Dec	21.1 C (70.0 F)	-37.2 C (-35.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at La Grange still stand. 2004 holds the most, with 59.

Standing records at La Grange by the year they were set
Year set	Standing records
1948	11
1949	19
1950	31
1951	26
1952	32
1953	23
1954	24
1955	27
1956	32
1957	23
1958	16
1959	23
1960	23
1961	10
1962	35
1963	24
1964	29
1965	29
1966	24
1967	24
1968	20
1969	31
1970	20
1971	16
1972	27
1973	20
1974	16
1975	23
1976	37
1977	20
1978	19
1979	14
1980	22
1981	17
1982	21
1983	29
1984	24
1985	31
1986	29
1987	15
1988	20
1989	30
1990	24
1991	19
1992	16
1993	19
1994	9
1995	25
1996	22
1997	26
1998	15
1999	17
2000	28
2001	23
2002	19
2003	32
2004	59
2005	22
2006	35
2007	27
2008	18
2009	22
2010	1

All-Time Record Progression

13 new records

13 all-time records were set at La Grange between 21 November 1979 and 14 August 2006. Each dot is a new record.

When La Grange set new all-time records
Date	Kind	Detail
1979-11-21	Record snow depth	Record snow depth 81.3 cm (32.0 in)
1979-11-22	Record snow depth	Record snow depth 106.7 cm (42.0 in)
1987-08-22	Record high minimum temperature	Record high minimum temperature 22.8 C (73.0 F)
1989-02-03	Record low maximum temperature	Record low maximum temperature -26.1 C (-15.0 F)
1989-12-22	Record low minimum temperature	Record low minimum temperature -37.2 C (-35.0 F)
1990-07-04	Record daily precipitation	Record daily precipitation 84.3 mm (3.3 in)
1995-08-07	Record high maximum temperature	Record high maximum temperature 42.8 C (109.0 F)
2004-08-01	Record high maximum temperature	Record high maximum temperature 44.4 C (111.9 F)
2004-08-01	Record high minimum temperature	Record high minimum temperature 23.9 C (75.0 F)
2004-08-02	Record high minimum temperature	Record high minimum temperature 26.7 C (80.1 F)
2004-08-05	Record high minimum temperature	Record high minimum temperature 27.2 C (81.0 F)
2004-08-06	Record high minimum temperature	Record high minimum temperature 27.8 C (82.0 F)
2006-08-14	Record daily precipitation	Record daily precipitation 98.6 mm (3.9 in)

Wettest Day of Each Month

Aug: 98.6 mm (3.9 in)

The wettest day on record for each calendar month at La Grange. The most was 98.6 mm (3.9 in) on 14 August 2006.

Record daily precipitation for each month at La Grange
Month	Record daily precipitation (mm)	Date
Jan	25.4 mm (1.0 in)	19 January 1988
Feb	24.1 mm (0.9 in)	15 February 1984
Mar	63.5 mm (2.5 in)	18 March 1979
Apr	64.8 mm (2.6 in)	13 April 1967
May	56.4 mm (2.2 in)	19 May 1988
Jun	73.4 mm (2.9 in)	12 June 1970
Jul	84.3 mm (3.3 in)	4 July 1990
Aug	98.6 mm (3.9 in)	14 August 2006
Sep	44.2 mm (1.7 in)	17 September 2001
Oct	45.7 mm (1.8 in)	6 October 1994
Nov	55.9 mm (2.2 in)	21 November 1979
Dec	48.3 mm (1.9 in)	27 December 1987

Period of Record Coverage

1948 to 2010

63 years of record at La Grange, 1948 to 2010. 5 years have data for under 90 percent of days and are left out of rankings: 1948, 1978, 1979, 2002, 2010.

Days with data per year at La Grange
Year	Days with data	Share of year	Complete
1948	152	42%	No
1949	365	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	364	100%	Yes
1954	363	99%	Yes
1955	363	99%	Yes
1956	362	99%	Yes
1957	361	99%	Yes
1958	362	99%	Yes
1959	359	98%	Yes
1960	363	99%	Yes
1961	362	99%	Yes
1962	364	100%	Yes
1963	364	100%	Yes
1964	363	99%	Yes
1965	361	99%	Yes
1966	362	99%	Yes
1967	365	100%	Yes
1968	365	100%	Yes
1969	364	100%	Yes
1970	365	100%	Yes
1971	364	100%	Yes
1972	366	100%	Yes
1973	364	100%	Yes
1974	365	100%	Yes
1975	364	100%	Yes
1976	334	91%	Yes
1977	334	92%	Yes
1978	324	89%	No
1979	274	75%	No
1980	350	96%	Yes
1981	353	97%	Yes
1982	357	98%	Yes
1983	363	99%	Yes
1984	361	99%	Yes
1985	363	99%	Yes
1986	358	98%	Yes
1987	357	98%	Yes
1988	360	98%	Yes
1989	355	97%	Yes
1990	361	99%	Yes
1991	350	96%	Yes
1992	347	95%	Yes
1993	349	96%	Yes
1994	360	99%	Yes
1995	362	99%	Yes
1996	365	100%	Yes
1997	364	100%	Yes
1998	365	100%	Yes
1999	363	99%	Yes
2000	366	100%	Yes
2001	362	99%	Yes
2002	327	90%	No
2003	364	100%	Yes
2004	336	92%	Yes
2005	355	97%	Yes
2006	365	100%	Yes
2007	364	100%	Yes
2008	365	100%	Yes
2009	331	91%	Yes
2010	89	24%	No

Latest Records

Latest records at La Grange
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 February 2010	La Grange, US	daily snow depth	15.2 cm (6.0 in)	2.5 cm (1.0 in)	55 years	26 of 100 (Routine)
22 February 2010	La Grange, US	daily low min	-24.4 C (-11.9 F)	6.6 C (11.9 F)	55 years	31 of 100 (Routine)
18 February 2010	La Grange, US	daily snowfall	7.6 cm (3.0 in)	1.2 cm (0.5 in)	55 years	24 of 100 (Routine)
18 February 2010	La Grange, US	daily rain	6.6 mm (0.26 in)	2.5 mm (0.10 in)	10 years	16 of 100 (Routine)
26 December 2009	La Grange, US	daily rain	2.5 mm (0.10 in)	0.7 mm (0.03 in)	55 years	20 of 100 (Routine)
26 December 2009	La Grange, US	daily snowfall (Tie)	5.1 cm (2.0 in)	tie	20 years	3 of 100 (Routine)
10 December 2009	La Grange, US	daily snow depth (Tie)	22.9 cm (9.0 in)	tie	24 years	3 of 100 (Routine)
9 December 2009	La Grange, US	daily low min	-31.1 C (-24.0 F)	6.1 C (11.0 F)	36 years	25 of 100 (Routine)
9 December 2009	La Grange, US	daily snow depth (Tie)	25.4 cm (10.0 in)	tie	6 years	1 of 100 (Routine)
8 December 2009	La Grange, US	daily snow depth	25.4 cm (10.0 in)	5.1 cm (2.0 in)	31 years	20 of 100 (Routine)
3 December 2009	La Grange, US	daily low max	-8.3 C (17.1 F)	1.6 C (2.9 F)	54 years	24 of 100 (Routine)
31 October 2009	La Grange, US	daily snow depth (Tie)	15.2 cm (6.0 in)	tie	36 years	4 of 100 (Routine)
30 October 2009	La Grange, US	daily snow depth	30.5 cm (12.0 in)	12.7 cm (5.0 in)	40 years	32 of 100 (Routine)
29 October 2009	La Grange, US	daily snow depth	40.6 cm (16.0 in)	30.4 cm (12.0 in)	48 years	55 of 100 (Notable)
29 October 2009	La Grange, US	daily rain	16.0 mm (0.6 in)	1.8 mm (0.07 in)	60 years	20 of 100 (Routine)
29 October 2009	La Grange, US	daily snowfall	20.3 cm (8.0 in)	5.1 cm (2.0 in)	38 years	24 of 100 (Routine)
28 October 2009	La Grange, US	daily snow depth	25.4 cm (10.0 in)	12.7 cm (5.0 in)	12 years	23 of 100 (Routine)
28 October 2009	La Grange, US	daily rain	22.9 mm (0.9 in)	1.3 mm (0.05 in)	11 years	10 of 100 (Routine)
28 October 2009	La Grange, US	monthly snowfall (Tie)	30.5 cm (12.0 in)	tie	12 years	4 of 100 (Routine)
12 October 2009	La Grange, US	daily snow depth	30.5 cm (12.0 in)	5.1 cm (2.0 in)	40 years	23 of 100 (Routine)

Climate Trend

53 complete years, 1949 to 2008

One stripe for each of 53 complete years at La Grange, 1949 to 2008. Blue stripes are years cooler than the station's own mean of 9.0 C (48.2 F); red stripes are warmer. The coolest year was 1975, at 7.1 C (44.7 F), and the warmest was 2007, at 10.6 C (51.1 F). The strongest colour marks a difference of 2.0 C (3.6 F).

Annual mean temperature at La Grange as warming stripes, 1949 to 2008
Year	Annual mean temperature	Difference from the station mean
1949	8.8 C	-0.15 C
1950	8.7 C	-0.33 C
1951	7.4 C	-1.55 C
1952	8.6 C	-0.42 C
1953	9.2 C	+0.22 C
1954	10.0 C	+1.01 C
1955	8.4 C	-0.57 C
1956	9.4 C	+0.46 C
1957	8.8 C	-0.14 C
1958	9.2 C	+0.19 C
1959	8.8 C	-0.21 C
1960	8.8 C	-0.16 C
1961	8.9 C	-0.12 C
1962	9.1 C	+0.09 C
1963	9.9 C	+0.87 C
1964	8.7 C	-0.33 C
1965	8.8 C	-0.22 C
1966	9.1 C	+0.13 C
1967	9.0 C	+0.01 C
1968	8.1 C	-0.87 C
1969	8.5 C	-0.53 C
1970	8.3 C	-0.73 C
1971	8.2 C	-0.82 C
1972	8.1 C	-0.87 C
1973	7.7 C	-1.32 C
1974	8.2 C	-0.79 C
1975	7.1 C	-1.92 C
1981	9.6 C	+0.61 C
1982	7.6 C	-1.38 C
1983	8.0 C	-0.94 C
1984	8.0 C	-0.98 C
1985	7.4 C	-1.61 C
1986	8.7 C	-0.25 C
1987	9.2 C	+0.26 C
1988	9.2 C	+0.26 C
1989	8.9 C	-0.06 C
1990	9.4 C	+0.42 C
1991	9.6 C	+0.65 C
1992	9.5 C	+0.56 C
1993	8.0 C	-1.02 C
1994	10.1 C	+1.11 C
1995	9.4 C	+0.45 C
1996	9.6 C	+0.57 C
1997	9.4 C	+0.42 C
1998	8.7 C	-0.28 C
1999	10.1 C	+1.13 C
2000	10.3 C	+1.27 C
2001	10.3 C	+1.34 C
2003	10.4 C	+1.39 C
2005	10.4 C	+1.45 C
2006	10.6 C	+1.58 C
2007	10.6 C	+1.64 C
2008	9.5 C	+0.49 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1949 to 2008. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 53 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at La Grange
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.6) per decade	1949 to 2008	53	Rise
Mean daily maximum	0.19 C (0.05 to 0.33) per decade	0.3 F (0.1 to 0.6) per decade	1949 to 2008	53	Rise
Mean daily minimum	0.3 C (0.1 to 0.4) per decade	0.5 F (0.2 to 0.7) per decade	1949 to 2008	53	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

1948 to 2010

Yearly extremes at La Grange: 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)	2004	38.3 C (100.9 F)	63
Coldest night (TNn)	-37.2 C (-35.0 F)	1989	-28.9 C (-20.0 F)	63
Wettest day (Rx1day)	98.6 mm (3.9 in)	2006	39.4 mm (1.6 in)	63
Wettest five days (Rx5day)	126.3 mm (5.0 in)	1970	58.1 mm (2.3 in)	63
Longest dry spell (CDD)	67 days	1954	31 days	63

Hottest day (TXx)

The hottest day of the year at La Grange, 1948 to 2010. The record is 44.4 C (111.9 F) in 2004, marked on the chart; the median year is 38.3 C (100.9 F).

Hottest day (TXx) at La Grange by year
Year	Hottest day (TXx)
1948	38.9 C (102.0 F)
1949	38.9 C (102.0 F)
1950	36.7 C (98.1 F)
1951	37.8 C (100.0 F)
1952	40.6 C (105.1 F)
1953	37.8 C (100.0 F)
1954	41.7 C (107.1 F)
1955	36.7 C (98.1 F)
1956	37.2 C (99.0 F)
1957	37.2 C (99.0 F)
1958	36.7 C (98.1 F)
1959	37.8 C (100.0 F)
1960	39.4 C (102.9 F)
1961	38.3 C (100.9 F)
1962	36.1 C (97.0 F)
1963	38.9 C (102.0 F)
1964	39.4 C (102.9 F)
1965	38.9 C (102.0 F)
1966	37.8 C (100.0 F)
1967	36.7 C (98.1 F)
1968	38.3 C (100.9 F)
1969	39.4 C (102.9 F)
1970	37.2 C (99.0 F)
1971	38.9 C (102.0 F)
1972	38.3 C (100.9 F)
1973	41.1 C (106.0 F)
1974	37.8 C (100.0 F)
1975	38.3 C (100.9 F)
1976	33.9 C (93.0 F)
1977	39.4 C (102.9 F)
1978	38.9 C (102.0 F)
1979	38.9 C (102.0 F)
1980	38.9 C (102.0 F)
1981	37.8 C (100.0 F)
1982	39.4 C (102.9 F)
1983	37.8 C (100.0 F)
1984	36.1 C (97.0 F)
1985	39.4 C (102.9 F)
1986	36.7 C (98.1 F)
1987	37.2 C (99.0 F)
1988	38.9 C (102.0 F)
1989	40.0 C (104.0 F)
1990	39.4 C (102.9 F)
1991	36.7 C (98.1 F)
1992	35.0 C (95.0 F)
1993	36.1 C (97.0 F)
1994	38.3 C (100.9 F)
1995	42.8 C (109.0 F)
1996	37.2 C (99.0 F)
1997	36.7 C (98.1 F)
1998	38.9 C (102.0 F)
1999	36.7 C (98.1 F)
2000	37.2 C (99.0 F)
2001	37.2 C (99.0 F)
2002	37.8 C (100.0 F)
2003	38.9 C (102.0 F)
2004	44.4 C (111.9 F)
2005	38.9 C (102.0 F)
2006	40.0 C (104.0 F)
2007	38.9 C (102.0 F)
2008	37.8 C (100.0 F)
2009	37.2 C (99.0 F)
2010	26.7 C (80.1 F)

Coldest night (TNn)

The coldest night of the year at La Grange, 1948 to 2010. The record is -37.2 C (-35.0 F) in 1989, marked on the chart; the median year is -28.9 C (-20.0 F).

Coldest night (TNn) at La Grange by year
Year	Coldest night (TNn)
1948	-23.3 C (-9.9 F)
1949	-28.9 C (-20.0 F)
1950	-27.8 C (-18.0 F)
1951	-35.6 C (-32.1 F)
1952	-28.9 C (-20.0 F)
1953	-23.9 C (-11.0 F)
1954	-26.1 C (-15.0 F)
1955	-24.4 C (-11.9 F)
1956	-26.7 C (-16.1 F)
1957	-30.0 C (-22.0 F)
1958	-21.7 C (-7.1 F)
1959	-33.3 C (-27.9 F)
1960	-30.6 C (-23.1 F)
1961	-28.9 C (-20.0 F)
1962	-31.7 C (-25.1 F)
1963	-36.7 C (-34.1 F)
1964	-36.7 C (-34.1 F)
1965	-25.0 C (-13.0 F)
1966	-31.1 C (-24.0 F)
1967	-27.8 C (-18.0 F)
1968	-31.1 C (-24.0 F)
1969	-25.6 C (-14.1 F)
1970	-23.9 C (-11.0 F)
1971	-24.4 C (-11.9 F)
1972	-31.7 C (-25.1 F)
1973	-30.0 C (-22.0 F)
1974	-32.8 C (-27.0 F)
1975	-28.3 C (-18.9 F)
1976	-32.2 C (-26.0 F)
1977	-30.6 C (-23.1 F)
1978	-28.9 C (-20.0 F)
1979	-33.3 C (-27.9 F)
1980	-27.8 C (-18.0 F)
1981	-27.2 C (-17.0 F)
1982	-35.6 C (-32.1 F)
1983	-36.1 C (-33.0 F)
1984	-33.3 C (-27.9 F)
1985	-32.8 C (-27.0 F)
1986	-30.6 C (-23.1 F)
1987	-30.0 C (-22.0 F)
1988	-26.1 C (-15.0 F)
1989	-37.2 C (-35.0 F)
1990	-37.2 C (-35.0 F)
1991	-25.0 C (-13.0 F)
1992	-27.2 C (-17.0 F)
1993	-29.4 C (-20.9 F)
1994	-26.7 C (-16.1 F)
1995	-26.7 C (-16.1 F)
1996	-28.9 C (-20.0 F)
1997	-24.4 C (-11.9 F)
1998	-32.8 C (-27.0 F)
1999	-17.8 C (0.0 F)
2000	-23.3 C (-9.9 F)
2001	-24.4 C (-11.9 F)
2002	-25.0 C (-13.0 F)
2003	-27.8 C (-18.0 F)
2004	-27.2 C (-17.0 F)
2005	-28.9 C (-20.0 F)
2006	-30.6 C (-23.1 F)
2007	-25.6 C (-14.1 F)
2008	-26.7 C (-16.1 F)
2009	-31.1 C (-24.0 F)
2010	-25.0 C (-13.0 F)

Wettest day (Rx1day)

The wettest day of the year at La Grange, 1948 to 2010. The record is 98.6 mm (3.9 in) in 2006, marked on the chart; the median year is 39.4 mm (1.6 in).

Wettest day (Rx1day) at La Grange by year
Year	Wettest day (Rx1day)
1948	20.3 mm (0.8 in)
1949	64.0 mm (2.5 in)
1950	29.0 mm (1.1 in)
1951	31.2 mm (1.2 in)
1952	30.5 mm (1.2 in)
1953	49.3 mm (1.9 in)
1954	27.9 mm (1.1 in)
1955	53.6 mm (2.1 in)
1956	38.6 mm (1.5 in)
1957	32.5 mm (1.3 in)
1958	39.6 mm (1.6 in)
1959	26.4 mm (1.0 in)
1960	48.0 mm (1.9 in)
1961	48.8 mm (1.9 in)
1962	43.7 mm (1.7 in)
1963	23.4 mm (0.9 in)
1964	39.4 mm (1.6 in)
1965	44.5 mm (1.8 in)
1966	30.0 mm (1.2 in)
1967	64.8 mm (2.6 in)
1968	68.6 mm (2.7 in)
1969	40.9 mm (1.6 in)
1970	73.4 mm (2.9 in)
1971	25.9 mm (1.0 in)
1972	38.1 mm (1.5 in)
1973	48.5 mm (1.9 in)
1974	35.6 mm (1.4 in)
1975	27.7 mm (1.1 in)
1976	23.9 mm (0.9 in)
1977	39.1 mm (1.5 in)
1978	23.6 mm (0.9 in)
1979	63.5 mm (2.5 in)
1980	32.3 mm (1.3 in)
1981	35.6 mm (1.4 in)
1982	37.1 mm (1.5 in)
1983	45.7 mm (1.8 in)
1984	41.4 mm (1.6 in)
1985	57.2 mm (2.3 in)
1986	51.1 mm (2.0 in)
1987	48.3 mm (1.9 in)
1988	63.5 mm (2.5 in)
1989	26.7 mm (1.1 in)
1990	84.3 mm (3.3 in)
1991	41.1 mm (1.6 in)
1992	26.7 mm (1.1 in)
1993	50.3 mm (2.0 in)
1994	45.7 mm (1.8 in)
1995	33.0 mm (1.3 in)
1996	25.9 mm (1.0 in)
1997	48.8 mm (1.9 in)
1998	27.9 mm (1.1 in)
1999	20.3 mm (0.8 in)
2000	25.4 mm (1.0 in)
2001	44.2 mm (1.7 in)
2002	26.9 mm (1.1 in)
2003	41.9 mm (1.6 in)
2004	39.1 mm (1.5 in)
2005	56.4 mm (2.2 in)
2006	98.6 mm (3.9 in)
2007	31.8 mm (1.3 in)
2008	48.3 mm (1.9 in)
2009	53.8 mm (2.1 in)
2010	6.6 mm (0.26 in)

Wettest five days (Rx5day)

The wettest five days of the year at La Grange, 1948 to 2010. The record is 126.3 mm (5.0 in) in 1970, marked on the chart; the median year is 58.1 mm (2.3 in).

Wettest five days (Rx5day) at La Grange by year
Year	Wettest five days (Rx5day)
1948	21.1 mm (0.8 in)
1949	79.5 mm (3.1 in)
1950	36.9 mm (1.5 in)
1951	66.3 mm (2.6 in)
1952	55.6 mm (2.2 in)
1953	65.8 mm (2.6 in)
1954	57.8 mm (2.3 in)
1955	62.0 mm (2.4 in)
1956	65.5 mm (2.6 in)
1957	69.4 mm (2.7 in)
1958	53.1 mm (2.1 in)
1959	41.8 mm (1.6 in)
1960	65.3 mm (2.6 in)
1961	85.3 mm (3.4 in)
1962	70.1 mm (2.8 in)
1963	37.4 mm (1.5 in)
1964	57.4 mm (2.3 in)
1965	59.3 mm (2.3 in)
1966	49.5 mm (1.9 in)
1967	79.0 mm (3.1 in)
1968	75.0 mm (3.0 in)
1969	50.8 mm (2.0 in)
1970	126.3 mm (5.0 in)
1971	45.0 mm (1.8 in)
1972	61.4 mm (2.4 in)
1973	75.4 mm (3.0 in)
1974	59.8 mm (2.4 in)
1975	39.3 mm (1.5 in)
1976	47.0 mm (1.9 in)
1977	54.1 mm (2.1 in)
1978	29.2 mm (1.1 in)
1979	84.9 mm (3.3 in)
1980	37.1 mm (1.5 in)
1981	61.0 mm (2.4 in)
1982	57.6 mm (2.3 in)
1983	88.4 mm (3.5 in)
1984	58.1 mm (2.3 in)
1985	79.3 mm (3.1 in)
1986	83.0 mm (3.3 in)
1987	57.2 mm (2.3 in)
1988	90.5 mm (3.6 in)
1989	49.0 mm (1.9 in)
1990	119.9 mm (4.7 in)
1991	52.8 mm (2.1 in)
1992	39.2 mm (1.5 in)
1993	76.9 mm (3.0 in)
1994	50.5 mm (2.0 in)
1995	42.4 mm (1.7 in)
1996	44.2 mm (1.7 in)
1997	71.4 mm (2.8 in)
1998	56.1 mm (2.2 in)
1999	47.8 mm (1.9 in)
2000	54.3 mm (2.1 in)
2001	67.9 mm (2.7 in)
2002	34.5 mm (1.4 in)
2003	66.8 mm (2.6 in)
2004	47.0 mm (1.9 in)
2005	81.3 mm (3.2 in)
2006	98.6 mm (3.9 in)
2007	48.8 mm (1.9 in)
2008	69.1 mm (2.7 in)
2009	90.7 mm (3.6 in)
2010	16.2 mm (0.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at La Grange, 1948 to 2010. The record is 67 days in 1954, marked on the chart; the median year is 31 days.

Longest dry spell (CDD) at La Grange by year
Year	Longest dry spell (CDD)
1948	29 days
1949	38 days
1950	36 days
1951	30 days
1952	33 days
1953	31 days
1954	67 days
1955	33 days
1956	33 days
1957	35 days
1958	37 days
1959	62 days
1960	25 days
1961	25 days
1962	39 days
1963	25 days
1964	41 days
1965	50 days
1966	47 days
1967	28 days
1968	34 days
1969	21 days
1970	36 days
1971	28 days
1972	36 days
1973	22 days
1974	30 days
1975	25 days
1976	49 days
1977	27 days
1978	27 days
1979	36 days
1980	28 days
1981	27 days
1982	34 days
1983	41 days
1984	27 days
1985	27 days
1986	22 days
1987	35 days
1988	35 days
1989	33 days
1990	25 days
1991	39 days
1992	45 days
1993	24 days
1994	28 days
1995	40 days
1996	37 days
1997	22 days
1998	31 days
1999	32 days
2000	23 days
2001	26 days
2002	37 days
2003	30 days
2004	27 days
2005	26 days
2006	59 days
2007	30 days
2008	28 days
2009	19 days
2010	28 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

53 years with a frost

Across 53 years with a frost, the median last spring frost at La Grange falls on 19 May and the median first autumn frost on 20 September, which leaves a median of 121 days between them.

Fitted over all years, the growing season changes by +2.1 days per decade at this station.

Frost dates and growing season at La Grange
Measure	Median, all years	Earliest period	Recent period (1972 to 2008)	Recent against earliest	Fitted trend
Last spring frost	19 May	n/a	20 May	n/a	-0.2 days per decade
First autumn frost	20 September	n/a	21 September	n/a	+1.9 days per decade
Growing days	121 days	n/a	124 days	n/a	+2.1 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

61 years, 1949 to 2009

A day with at least 39.3 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 95.7 mm (3.8 in) of rain is expected about once in 100 years.

Rainfall return levels at La Grange: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	39.3 mm (1.5 in)
5 years	53.2 mm (2.1 in)
10 years	62.8 mm (2.5 in)
25 years	75.6 mm (3.0 in)
50 years	85.5 mm (3.4 in)
100 years	95.7 mm (3.8 in)	Longer than the 61 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, 61 years of values from 1949 to 2009.

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: 98.6 mm (3.9 in) in 2006; 84.3 mm (3.3 in) in 1990; 73.4 mm (2.9 in) in 1970.

Station Changes

2 suspected

2 changes were suspected in the annual mean temperature of La Grange, at 1968 and 1987. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1968 ran 0.6 C (1.1 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1987 ran 0.7 C (1.3 F) higher than in the years before (possible change).

Suspected changes in the annual mean temperature at La Grange, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1968	-0.6	-1.1	likely	5
1987	+0.7	+1.3	possible	5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Download the Data

Data for La Grange standing records by year: CSV or JSON. Field meanings are on the data page.
Data for La Grange 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 2026-10-15 (15 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).