Lander AP Weather Records (USW00024021)

Record envelope, standing records and threshold days for Lander AP (USW00024021), Wyoming, United States, with 79 years of record.

Key Facts for Lander AP

Lander AP (USW00024021) is a weather station in Wyoming, United States at 42.82 latitude and -108.73 longitude, 1,698 m (5,572 ft) above sea level.
The station reports from 1948 to 2026, 79 years of record.
1,464 records set at Lander AP still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Lander AP tied a daily record high maximum temperature of 27.2 C (81.0 F) on 9 October 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Wyoming, United States, 42.82 latitude, -108.73 longitude.
Elevation: 1,698 m (5,572 ft).
Period of record: 1948 to 2026, 79 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

32 days at or beyond a record

The band shows the record high and record low for each calendar day at Lander AP. The lines show the 2026 daily maximum and minimum. 32 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Lander AP, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	17.2 C (63.0 F)	-38.3 C (-36.9 F)	16.1 C (61.0 F)	-20.6 C (-5.1 F)
Feb	20.0 C (68.0 F)	-33.3 C (-27.9 F)	17.8 C (64.0 F)	-17.8 C (0.0 F)
Mar	27.8 C (82.0 F)	-26.7 C (-16.1 F)	27.8 C (82.0 F)	-12.8 C (9.0 F)
Apr	28.3 C (82.9 F)	-18.9 C (-2.0 F)	27.2 C (81.0 F)	-6.7 C (19.9 F)
May	33.9 C (93.0 F)	-7.8 C (18.0 F)	31.7 C (89.1 F)	-5.6 C (21.9 F)
Jun	37.8 C (100.0 F)	-3.9 C (25.0 F)	33.9 C (93.0 F)	2.8 C (37.0 F)
Jul	38.9 C (102.0 F)	3.9 C (39.0 F)	38.9 C (102.0 F)	8.3 C (46.9 F)
Aug	38.3 C (100.9 F)	1.7 C (35.1 F)	38.3 C (100.9 F)	7.8 C (46.0 F)
Sep	37.2 C (99.0 F)	-12.2 C (10.0 F)	31.1 C (88.0 F)	3.9 C (39.0 F)
Oct	30.0 C (86.0 F)	-23.2 C (-9.8 F)	29.4 C (84.9 F)	5.6 C (42.1 F)
Nov	21.7 C (71.1 F)	-27.8 C (-18.0 F)	n/a	n/a
Dec	18.3 C (64.9 F)	-38.3 C (-36.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Lander AP still stand. 1950 holds the most, with 40.

Standing records at Lander AP by the year they were set
Year set	Standing records
1948	19
1949	22
1950	40
1951	21
1952	13
1953	20
1954	32
1955	12
1956	16
1957	5
1958	14
1959	13
1960	18
1961	7
1962	29
1963	19
1964	15
1965	30
1966	22
1967	11
1968	11
1969	24
1970	17
1971	10
1972	32
1973	21
1974	16
1975	18
1976	13
1977	15
1978	25
1979	20
1980	24
1981	14
1982	14
1983	23
1984	15
1985	38
1986	18
1987	20
1988	23
1989	26
1990	20
1991	16
1992	17
1993	21
1994	9
1995	18
1996	24
1997	18
1998	11
1999	15
2000	20
2001	12
2002	20
2003	30
2004	14
2005	7
2006	23
2007	11
2008	9
2009	25
2010	11
2011	9
2012	20
2013	21
2014	21
2015	25
2016	10
2017	7
2018	9
2019	11
2020	30
2021	29
2022	17
2023	14
2024	16
2025	23
2026	36

All-Time Record Progression

9 new records

9 all-time records were set at Lander AP between 22 July 1982 and 12 July 2026. Each dot is a new record.

When Lander AP set new all-time records
Date	Kind	Detail
1982-07-22	Record high minimum temperature	Record high minimum temperature 22.2 C (72.0 F)
1983-12-22	Record low maximum temperature	Record low maximum temperature -27.8 C (-18.0 F)
1985-12-10	Record snow depth	Record snow depth 71.1 cm (28.0 in)
1989-02-03	Record low maximum temperature	Record low maximum temperature -28.3 C (-18.9 F)
1999-04-22	Record daily snowfall	Record daily snowfall 72.6 cm (28.6 in)
2003-08-14	Record high minimum temperature	Record high minimum temperature 22.8 C (73.0 F)
2011-05-19	Record daily precipitation	Record daily precipitation 64.0 mm (2.5 in)
2016-05-07	Record daily precipitation	Record daily precipitation 85.1 mm (3.4 in)
2026-07-12	Record high maximum temperature	Record high maximum temperature 38.9 C (102.0 F)

Wettest Day of Each Month

May: 85.1 mm (3.4 in)

The wettest day on record for each calendar month at Lander AP. The most was 85.1 mm (3.4 in) on 7 May 2016.

Record daily precipitation for each month at Lander AP
Month	Record daily precipitation (mm)	Date
Jan	22.9 mm (0.9 in)	1 January 2023
Feb	23.1 mm (0.9 in)	3 February 2020
Mar	68.8 mm (2.7 in)	31 March 2017
Apr	54.6 mm (2.1 in)	25 April 1971
May	85.1 mm (3.4 in)	7 May 2016
Jun	54.9 mm (2.2 in)	7 June 1969
Jul	53.6 mm (2.1 in)	24 July 1977
Aug	55.9 mm (2.2 in)	18 August 2004
Sep	43.7 mm (1.7 in)	13 September 1982
Oct	43.4 mm (1.7 in)	13 October 1966
Nov	28.7 mm (1.1 in)	15 November 1958
Dec	24.9 mm (1.0 in)	2 December 1955

Period of Record Coverage

1948 to 2026

79 years of record at Lander AP, 1948 to 2026. 2 years have data for under 90 percent of days and are left out of rankings: 2017, 2026.

Days with data per year at Lander AP
Year	Days with data	Share of year	Complete
1948	366	100%	Yes
1949	361	99%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	362	99%	Yes
2010	364	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	365	100%	Yes
2014	361	99%	Yes
2015	365	100%	Yes
2016	366	100%	Yes
2017	311	85%	No
2018	365	100%	Yes
2019	365	100%	Yes
2020	366	100%	Yes
2021	365	100%	Yes
2022	362	99%	Yes
2023	363	99%	Yes
2024	365	100%	Yes
2025	359	98%	Yes
2026	284	78%	No

Latest Records

Latest records at Lander AP
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 October 2026	Lander AP, US	daily high max (Tie, Provisional)	27.2 C (81.0 F)	tie	23 years	3 of 100 (Routine)
6 October 2026	Lander AP, US	daily high max (Tie, Provisional)	28.3 C (82.9 F)	tie	51 years	5 of 100 (Routine)
6 October 2026	Lander AP, US	daily high min (Tie, Provisional)	10.0 C (50.0 F)	tie	32 years	4 of 100 (Routine)
5 October 2026	Lander AP, US	daily high max (Provisional)	29.4 C (84.9 F)	1.6 C (2.9 F)	68 years	29 of 100 (Routine)
19 September 2026	Lander AP, US	daily rain (Provisional)	41.7 mm (1.6 in)	23.4 mm (0.9 in)	27 years	51 of 100 (Notable)
28 August 2026	Lander AP, US	daily rain (Provisional)	3.8 mm (0.15 in)	2.0 mm (0.08 in)	44 years	20 of 100 (Routine)
9 August 2026	Lander AP, US	daily high max	35.6 C (96.1 F)	0.6 C (1.1 F)	43 years	20 of 100 (Routine)
8 August 2026	Lander AP, US	daily high max (Tie)	36.7 C (98.1 F)	tie	43 years	4 of 100 (Routine)
2 August 2026	Lander AP, US	monthly high max (Tie)	38.3 C (100.9 F)	tie	46 years	7 of 100 (Routine)
1 August 2026	Lander AP, US	daily high max (Tie)	37.2 C (99.0 F)	tie	25 years	3 of 100 (Routine)
26 July 2026	Lander AP, US	daily high min	20.0 C (68.0 F)	1.1 C (2.0 F)	15 years	14 of 100 (Routine)
26 July 2026	Lander AP, US	daily high max	37.2 C (99.0 F)	0.5 C (0.9 F)	4 years	9 of 100 (Routine)
25 July 2026	Lander AP, US	daily high max	37.2 C (99.0 F)	1.1 C (2.0 F)	15 years	13 of 100 (Routine)
20 July 2026	Lander AP, US	daily high max (Tie)	36.7 C (98.1 F)	tie	65 years	6 of 100 (Routine)
15 July 2026	Lander AP, US	daily high min (Tie)	21.1 C (70.0 F)	tie	25 years	3 of 100 (Routine)
13 July 2026	Lander AP, US	daily high min (Tie)	18.3 C (64.9 F)	tie	72 years	7 of 100 (Routine)
12 July 2026	Lander AP, US	all-time high max	38.9 C (102.0 F)	0.6 C (1.1 F)	72 years	49 of 100 (Notable)
6 June 2026	Lander AP, US	daily high max	33.9 C (93.0 F)	0.6 C (1.1 F)	20 years	14 of 100 (Routine)
27 May 2026	Lander AP, US	daily high min (Tie)	12.8 C (55.0 F)	tie	52 years	5 of 100 (Routine)
18 May 2026	Lander AP, US	daily snowfall	20.1 cm (7.9 in)	4.1 cm (1.6 in)	8 years	13 of 100 (Routine)

Climate Trend

77 complete years, 1948 to 2025

One stripe for each of 77 complete years at Lander AP, 1948 to 2025. Blue stripes are years cooler than the station's own mean of 7.2 C (45.0 F); red stripes are warmer. The coolest year was 1993, at 5.2 C (41.3 F), and the warmest was 2012, at 9.5 C (49.0 F). The strongest colour marks a difference of 2.3 C (4.1 F).

Annual mean temperature at Lander AP as warming stripes, 1948 to 2025
Year	Annual mean temperature	Difference from the station mean
1948	6.5 C	-0.78 C
1949	6.1 C	-1.10 C
1950	6.7 C	-0.52 C
1951	5.9 C	-1.36 C
1952	7.1 C	-0.12 C
1953	8.0 C	+0.75 C
1954	8.5 C	+1.22 C
1955	6.6 C	-0.61 C
1956	7.2 C	-0.07 C
1957	6.7 C	-0.57 C
1958	7.7 C	+0.42 C
1959	6.7 C	-0.55 C
1960	7.0 C	-0.25 C
1961	6.6 C	-0.64 C
1962	7.2 C	-0.06 C
1963	7.5 C	+0.29 C
1964	6.6 C	-0.62 C
1965	6.9 C	-0.29 C
1966	7.5 C	+0.25 C
1967	6.7 C	-0.49 C
1968	5.9 C	-1.29 C
1969	7.6 C	+0.41 C
1970	6.9 C	-0.30 C
1971	6.5 C	-0.72 C
1972	6.4 C	-0.82 C
1973	5.2 C	-1.99 C
1974	7.1 C	-0.12 C
1975	6.0 C	-1.22 C
1976	7.2 C	-0.05 C
1977	7.6 C	+0.34 C
1978	5.7 C	-1.50 C
1979	6.1 C	-1.16 C
1980	7.4 C	+0.18 C
1981	8.7 C	+1.48 C
1982	6.7 C	-0.54 C
1983	6.6 C	-0.63 C
1984	6.4 C	-0.86 C
1985	6.4 C	-0.81 C
1986	7.5 C	+0.25 C
1987	7.6 C	+0.36 C
1988	8.7 C	+1.48 C
1989	7.2 C	-0.01 C
1990	8.1 C	+0.86 C
1991	7.5 C	+0.25 C
1992	7.9 C	+0.70 C
1993	5.2 C	-2.04 C
1994	8.6 C	+1.38 C
1995	7.6 C	+0.36 C
1996	7.6 C	+0.41 C
1997	6.8 C	-0.45 C
1998	7.2 C	-0.07 C
1999	8.3 C	+1.09 C
2000	7.6 C	+0.35 C
2001	7.9 C	+0.69 C
2002	6.7 C	-0.50 C
2003	7.8 C	+0.53 C
2004	7.2 C	-0.08 C
2005	8.0 C	+0.75 C
2006	8.6 C	+1.35 C
2007	8.1 C	+0.87 C
2008	6.8 C	-0.41 C
2009	6.8 C	-0.41 C
2010	7.2 C	-0.05 C
2011	7.0 C	-0.26 C
2012	9.5 C	+2.23 C
2013	7.2 C	-0.02 C
2014	7.5 C	+0.26 C
2015	8.3 C	+1.08 C
2016	8.2 C	+0.92 C
2018	7.4 C	+0.16 C
2019	5.8 C	-1.42 C
2020	7.7 C	+0.44 C
2021	8.6 C	+1.39 C
2022	7.4 C	+0.15 C
2023	6.0 C	-1.26 C
2024	8.8 C	+1.57 C
2025	8.8 C	+1.59 C

The annual mean temperature here has risen by 0.1 C (0.1 to 0.2) per decade over 1948 to 2025. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 77 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Lander AP
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (0.1 to 0.2) per decade	0.3 F (0.1 to 0.4) per decade	1948 to 2025	77	Rise
Mean daily maximum	0.14 C (0.04 to 0.25) per decade	0.3 F (0.1 to 0.4) per decade	1948 to 2025	77	Rise
Mean daily minimum	0.1 C (0.1 to 0.2) per decade	0.3 F (0.1 to 0.4) per decade	1948 to 2025	77	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 2026

Yearly extremes at Lander AP: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.9 C (102.0 F)	2026	36.1 C (97.0 F)	79
Coldest night (TNn)	-38.3 C (-36.9 F)	1963	-28.8 C (-19.8 F)	79
Wettest day (Rx1day)	85.1 mm (3.4 in)	2016	31.5 mm (1.2 in)	79
Wettest five days (Rx5day)	119.0 mm (4.7 in)	1969	48.7 mm (1.9 in)	79
Longest dry spell (CDD)	78 days	1969	39 days	79

Hottest day (TXx)

The hottest day of the year at Lander AP, 1948 to 2026. The record is 38.9 C (102.0 F) in 2026, marked on the chart; the median year is 36.1 C (97.0 F).

Hottest day (TXx) at Lander AP by year
Year	Hottest day (TXx)
1948	34.4 C (93.9 F)
1949	36.1 C (97.0 F)
1950	33.9 C (93.0 F)
1951	36.1 C (97.0 F)
1952	35.0 C (95.0 F)
1953	35.6 C (96.1 F)
1954	38.3 C (100.9 F)
1955	35.6 C (96.1 F)
1956	36.7 C (98.1 F)
1957	34.4 C (93.9 F)
1958	35.0 C (95.0 F)
1959	36.1 C (97.0 F)
1960	36.7 C (98.1 F)
1961	36.7 C (98.1 F)
1962	34.4 C (93.9 F)
1963	35.6 C (96.1 F)
1964	36.7 C (98.1 F)
1965	33.9 C (93.0 F)
1966	35.6 C (96.1 F)
1967	32.2 C (90.0 F)
1968	33.9 C (93.0 F)
1969	35.6 C (96.1 F)
1970	35.6 C (96.1 F)
1971	33.9 C (93.0 F)
1972	35.0 C (95.0 F)
1973	36.7 C (98.1 F)
1974	36.1 C (97.0 F)
1975	34.4 C (93.9 F)
1976	36.1 C (97.0 F)
1977	35.0 C (95.0 F)
1978	35.6 C (96.1 F)
1979	38.3 C (100.9 F)
1980	35.0 C (95.0 F)
1981	35.0 C (95.0 F)
1982	37.2 C (99.0 F)
1983	36.7 C (98.1 F)
1984	36.7 C (98.1 F)
1985	35.6 C (96.1 F)
1986	36.1 C (97.0 F)
1987	35.0 C (95.0 F)
1988	37.2 C (99.0 F)
1989	37.2 C (99.0 F)
1990	37.2 C (99.0 F)
1991	36.7 C (98.1 F)
1992	35.0 C (95.0 F)
1993	34.4 C (93.9 F)
1994	34.4 C (93.9 F)
1995	36.1 C (97.0 F)
1996	37.2 C (99.0 F)
1997	36.1 C (97.0 F)
1998	37.8 C (100.0 F)
1999	35.0 C (95.0 F)
2000	37.2 C (99.0 F)
2001	37.8 C (100.0 F)
2002	38.3 C (100.9 F)
2003	37.8 C (100.0 F)
2004	35.0 C (95.0 F)
2005	38.3 C (100.9 F)
2006	38.3 C (100.9 F)
2007	37.8 C (100.0 F)
2008	36.7 C (98.1 F)
2009	35.6 C (96.1 F)
2010	36.1 C (97.0 F)
2011	36.1 C (97.0 F)
2012	37.2 C (99.0 F)
2013	36.1 C (97.0 F)
2014	37.2 C (99.0 F)
2015	35.0 C (95.0 F)
2016	36.1 C (97.0 F)
2017	35.0 C (95.0 F)
2018	36.7 C (98.1 F)
2019	35.0 C (95.0 F)
2020	36.1 C (97.0 F)
2021	37.8 C (100.0 F)
2022	37.8 C (100.0 F)
2023	36.1 C (97.0 F)
2024	37.8 C (100.0 F)
2025	37.2 C (99.0 F)
2026	38.9 C (102.0 F)

Coldest night (TNn)

The coldest night of the year at Lander AP, 1948 to 2026. The record is -38.3 C (-36.9 F) in 1963, marked on the chart; the median year is -28.8 C (-19.8 F).

Coldest night (TNn) at Lander AP by year
Year	Coldest night (TNn)
1948	-28.9 C (-20.0 F)
1949	-35.0 C (-31.0 F)
1950	-30.6 C (-23.1 F)
1951	-31.7 C (-25.1 F)
1952	-26.1 C (-15.0 F)
1953	-22.8 C (-9.0 F)
1954	-25.0 C (-13.0 F)
1955	-29.4 C (-20.9 F)
1956	-29.4 C (-20.9 F)
1957	-27.2 C (-17.0 F)
1958	-20.0 C (-4.0 F)
1959	-34.4 C (-29.9 F)
1960	-28.9 C (-20.0 F)
1961	-29.4 C (-20.9 F)
1962	-35.6 C (-32.1 F)
1963	-38.3 C (-36.9 F)
1964	-30.0 C (-22.0 F)
1965	-25.6 C (-14.1 F)
1966	-25.6 C (-14.1 F)
1967	-26.1 C (-15.0 F)
1968	-30.0 C (-22.0 F)
1969	-21.7 C (-7.1 F)
1970	-25.0 C (-13.0 F)
1971	-25.6 C (-14.1 F)
1972	-32.2 C (-26.0 F)
1973	-32.2 C (-26.0 F)
1974	-29.4 C (-20.9 F)
1975	-27.8 C (-18.0 F)
1976	-29.4 C (-20.9 F)
1977	-26.7 C (-16.1 F)
1978	-35.6 C (-32.1 F)
1979	-35.0 C (-31.0 F)
1980	-32.8 C (-27.0 F)
1981	-27.8 C (-18.0 F)
1982	-29.4 C (-20.9 F)
1983	-38.3 C (-36.9 F)
1984	-32.8 C (-27.0 F)
1985	-30.0 C (-22.0 F)
1986	-28.3 C (-18.9 F)
1987	-27.8 C (-18.0 F)
1988	-24.4 C (-11.9 F)
1989	-31.1 C (-24.0 F)
1990	-37.2 C (-35.0 F)
1991	-25.6 C (-14.1 F)
1992	-28.9 C (-20.0 F)
1993	-29.4 C (-20.9 F)
1994	-25.0 C (-13.0 F)
1995	-23.3 C (-9.9 F)
1996	-27.8 C (-18.0 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	-25.6 C (-14.1 F)
2002	-22.8 C (-9.0 F)
2003	-26.7 C (-16.1 F)
2004	-27.8 C (-18.0 F)
2005	-27.8 C (-18.0 F)
2006	-31.7 C (-25.1 F)
2007	-28.3 C (-18.9 F)
2008	-30.0 C (-22.0 F)
2009	-31.1 C (-24.0 F)
2010	-26.7 C (-16.1 F)
2011	-28.9 C (-20.0 F)
2012	-23.3 C (-9.9 F)
2013	-28.2 C (-18.8 F)
2014	-32.7 C (-26.9 F)
2015	-28.8 C (-19.8 F)
2016	-29.3 C (-20.7 F)
2017	-31.6 C (-24.9 F)
2018	-26.0 C (-14.8 F)
2019	-27.1 C (-16.8 F)
2020	-22.7 C (-8.9 F)
2021	-24.9 C (-12.8 F)
2022	-35.5 C (-31.9 F)
2023	-35.0 C (-31.0 F)
2024	-32.7 C (-26.9 F)
2025	-27.7 C (-17.9 F)
2026	-20.6 C (-5.1 F)

Wettest day (Rx1day)

The wettest day of the year at Lander AP, 1948 to 2026. The record is 85.1 mm (3.4 in) in 2016, marked on the chart; the median year is 31.5 mm (1.2 in).

Wettest day (Rx1day) at Lander AP by year
Year	Wettest day (Rx1day)
1948	27.7 mm (1.1 in)
1949	30.2 mm (1.2 in)
1950	46.5 mm (1.8 in)
1951	43.9 mm (1.7 in)
1952	40.1 mm (1.6 in)
1953	26.4 mm (1.0 in)
1954	26.4 mm (1.0 in)
1955	24.9 mm (1.0 in)
1956	31.5 mm (1.2 in)
1957	40.4 mm (1.6 in)
1958	37.1 mm (1.5 in)
1959	34.8 mm (1.4 in)
1960	32.0 mm (1.3 in)
1961	28.4 mm (1.1 in)
1962	26.2 mm (1.0 in)
1963	45.7 mm (1.8 in)
1964	63.5 mm (2.5 in)
1965	22.4 mm (0.9 in)
1966	43.4 mm (1.7 in)
1967	31.0 mm (1.2 in)
1968	22.6 mm (0.9 in)
1969	54.9 mm (2.2 in)
1970	38.1 mm (1.5 in)
1971	54.6 mm (2.1 in)
1972	19.8 mm (0.8 in)
1973	30.7 mm (1.2 in)
1974	14.5 mm (0.6 in)
1975	34.0 mm (1.3 in)
1976	22.4 mm (0.9 in)
1977	53.6 mm (2.1 in)
1978	26.9 mm (1.1 in)
1979	26.2 mm (1.0 in)
1980	27.9 mm (1.1 in)
1981	27.9 mm (1.1 in)
1982	43.7 mm (1.7 in)
1983	31.8 mm (1.3 in)
1984	26.7 mm (1.1 in)
1985	27.9 mm (1.1 in)
1986	26.7 mm (1.1 in)
1987	20.8 mm (0.8 in)
1988	17.8 mm (0.7 in)
1989	45.5 mm (1.8 in)
1990	24.4 mm (1.0 in)
1991	27.9 mm (1.1 in)
1992	21.3 mm (0.8 in)
1993	43.9 mm (1.7 in)
1994	37.1 mm (1.5 in)
1995	25.9 mm (1.0 in)
1996	30.7 mm (1.2 in)
1997	29.0 mm (1.1 in)
1998	35.8 mm (1.4 in)
1999	47.5 mm (1.9 in)
2000	30.0 mm (1.2 in)
2001	18.8 mm (0.7 in)
2002	20.6 mm (0.8 in)
2003	20.6 mm (0.8 in)
2004	55.9 mm (2.2 in)
2005	43.4 mm (1.7 in)
2006	19.3 mm (0.8 in)
2007	36.8 mm (1.4 in)
2008	48.5 mm (1.9 in)
2009	39.6 mm (1.6 in)
2010	51.6 mm (2.0 in)
2011	64.0 mm (2.5 in)
2012	22.6 mm (0.9 in)
2013	33.3 mm (1.3 in)
2014	34.8 mm (1.4 in)
2015	34.0 mm (1.3 in)
2016	85.1 mm (3.4 in)
2017	68.8 mm (2.7 in)
2018	37.8 mm (1.5 in)
2019	36.3 mm (1.4 in)
2020	23.1 mm (0.9 in)
2021	42.4 mm (1.7 in)
2022	22.4 mm (0.9 in)
2023	26.2 mm (1.0 in)
2024	22.4 mm (0.9 in)
2025	31.5 mm (1.2 in)
2026	41.7 mm (1.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Lander AP, 1948 to 2026. The record is 119.0 mm (4.7 in) in 1969, marked on the chart; the median year is 48.7 mm (1.9 in).

Wettest five days (Rx5day) at Lander AP by year
Year	Wettest five days (Rx5day)
1948	43.7 mm (1.7 in)
1949	48.1 mm (1.9 in)
1950	52.6 mm (2.1 in)
1951	50.3 mm (2.0 in)
1952	69.1 mm (2.7 in)
1953	36.8 mm (1.4 in)
1954	31.8 mm (1.3 in)
1955	31.0 mm (1.2 in)
1956	50.6 mm (2.0 in)
1957	71.1 mm (2.8 in)
1958	50.0 mm (2.0 in)
1959	42.9 mm (1.7 in)
1960	45.2 mm (1.8 in)
1961	46.2 mm (1.8 in)
1962	44.0 mm (1.7 in)
1963	83.0 mm (3.3 in)
1964	80.0 mm (3.1 in)
1965	43.3 mm (1.7 in)
1966	43.7 mm (1.7 in)
1967	55.6 mm (2.2 in)
1968	49.9 mm (2.0 in)
1969	119.0 mm (4.7 in)
1970	58.0 mm (2.3 in)
1971	79.7 mm (3.1 in)
1972	27.2 mm (1.1 in)
1973	57.7 mm (2.3 in)
1974	31.3 mm (1.2 in)
1975	71.9 mm (2.8 in)
1976	30.5 mm (1.2 in)
1977	60.0 mm (2.4 in)
1978	58.3 mm (2.3 in)
1979	48.0 mm (1.9 in)
1980	54.6 mm (2.1 in)
1981	53.0 mm (2.1 in)
1982	55.7 mm (2.2 in)
1983	43.1 mm (1.7 in)
1984	49.2 mm (1.9 in)
1985	41.6 mm (1.6 in)
1986	41.1 mm (1.6 in)
1987	34.5 mm (1.4 in)
1988	21.8 mm (0.9 in)
1989	101.1 mm (4.0 in)
1990	44.2 mm (1.7 in)
1991	41.1 mm (1.6 in)
1992	32.7 mm (1.3 in)
1993	65.3 mm (2.6 in)
1994	76.8 mm (3.0 in)
1995	57.6 mm (2.3 in)
1996	62.0 mm (2.4 in)
1997	48.2 mm (1.9 in)
1998	47.3 mm (1.9 in)
1999	114.3 mm (4.5 in)
2000	33.0 mm (1.3 in)
2001	25.4 mm (1.0 in)
2002	29.7 mm (1.2 in)
2003	28.0 mm (1.1 in)
2004	58.5 mm (2.3 in)
2005	70.5 mm (2.8 in)
2006	19.6 mm (0.8 in)
2007	48.7 mm (1.9 in)
2008	100.3 mm (3.9 in)
2009	48.0 mm (1.9 in)
2010	82.3 mm (3.2 in)
2011	96.0 mm (3.8 in)
2012	23.6 mm (0.9 in)
2013	47.0 mm (1.9 in)
2014	45.5 mm (1.8 in)
2015	58.2 mm (2.3 in)
2016	113.6 mm (4.5 in)
2017	90.1 mm (3.5 in)
2018	50.3 mm (2.0 in)
2019	76.3 mm (3.0 in)
2020	34.1 mm (1.3 in)
2021	45.7 mm (1.8 in)
2022	53.4 mm (2.1 in)
2023	40.6 mm (1.6 in)
2024	29.1 mm (1.1 in)
2025	41.0 mm (1.6 in)
2026	52.6 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Lander AP, 1948 to 2026. The record is 78 days in 1969, marked on the chart; the median year is 39 days.

Longest dry spell (CDD) at Lander AP by year
Year	Longest dry spell (CDD)
1948	32 days
1949	40 days
1950	51 days
1951	27 days
1952	69 days
1953	40 days
1954	33 days
1955	42 days
1956	43 days
1957	35 days
1958	39 days
1959	34 days
1960	68 days
1961	34 days
1962	40 days
1963	40 days
1964	40 days
1965	38 days
1966	47 days
1967	40 days
1968	23 days
1969	78 days
1970	67 days
1971	46 days
1972	34 days
1973	27 days
1974	27 days
1975	31 days
1976	47 days
1977	34 days
1978	33 days
1979	52 days
1980	42 days
1981	60 days
1982	30 days
1983	27 days
1984	36 days
1985	31 days
1986	23 days
1987	25 days
1988	57 days
1989	31 days
1990	43 days
1991	26 days
1992	35 days
1993	24 days
1994	41 days
1995	32 days
1996	38 days
1997	38 days
1998	36 days
1999	55 days
2000	44 days
2001	57 days
2002	39 days
2003	41 days
2004	31 days
2005	42 days
2006	67 days
2007	47 days
2008	46 days
2009	55 days
2010	37 days
2011	49 days
2012	59 days
2013	51 days
2014	28 days
2015	34 days
2016	41 days
2017	33 days
2018	45 days
2019	17 days
2020	43 days
2021	28 days
2022	32 days
2023	28 days
2024	47 days
2025	21 days
2026	47 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

77 years with a frost

Across 77 years with a frost, the median last spring frost at Lander AP falls on 16 May and the median first autumn frost on 24 September, which leaves a median of 129 days between them.

In 1995 to 2025 the median growing season was 134 days. That is 11 days more than in 1948 to 1977.

Fitted over all years, the growing season changes by +1.9 days per decade at this station.

Frost dates and growing season at Lander AP
Measure	Median, all years	Earliest period (1948 to 1977)	Recent period (1995 to 2025)	Recent against earliest	Fitted trend
Last spring frost	16 May	19 May	15 May	4 days earlier	-0.6 days per decade
First autumn frost	24 September	23 September	1 October	8 days later	+1.3 days per decade
Growing days	129 days	123 days	134 days	11 days more	+1.9 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

78 years, 1948 to 2025

A day with at least 31.6 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 81.4 mm (3.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Lander AP: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	31.6 mm (1.2 in)
5 years	43.0 mm (1.7 in)
10 years	51.2 mm (2.0 in)
25 years	62.6 mm (2.5 in)
50 years	71.7 mm (2.8 in)
100 years	81.4 mm (3.2 in)	Longer than the 78 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, 78 years of values from 1948 to 2025.

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: 85.1 mm (3.4 in) in 2016; 68.8 mm (2.7 in) in 2017; 64.0 mm (2.5 in) in 2011.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2010 to 2025 against 1961 to 1990

Over 2010 to 2025, Lander AP had a mean temperature of 7.7 C (45.8 F) and 351.6 mm (13.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Dinosaur Nm (United States, 287 km away), Biddle 8 SW (United States, 359 km away) and Thiokol Propulsion F S (United States, 328 km away).

Climate twins of Lander AP: stations whose 1961 to 1990 climate is closest to its 2010 to 2025 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Dinosaur Nm	United States	287 km (178 mi)	8.3 C (46.9 F)	289.0 mm (11.4 in)	0.97
Biddle 8 SW	United States	359 km (223 mi)	7.4 C (45.2 F)	342.3 mm (13.5 in)	0.99
Thiokol Propulsion F S	United States	328 km (204 mi)	8.2 C (46.8 F)	364.0 mm (14.3 in)	1.01

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

Data for Lander AP standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Lander AP 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).