Alpine Weather Records (USC00020159)

Record envelope, standing records and threshold days for Alpine (USC00020159), Arizona, United States, with 123 years of record.

Key Facts for Alpine

Alpine (USC00020159) is a weather station in Arizona, United States at 33.85 latitude and -109.15 longitude, 2,454 m (8,050 ft) above sea level.
The station reports from 1904 to 2026, 123 years of record.
1,464 records set at Alpine still stand.
Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
Alpine set a daily record high minimum temperature of 8.9 C (48.0 F) on 27 September 2026 (provisional).

Provisional Records

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

About the Station

Location: Arizona, United States, 33.85 latitude, -109.15 longitude.
Elevation: 2,454 m (8,050 ft).
Period of record: 1904 to 2026, 123 years.
Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

19 days at or beyond a record

The band shows the record high and record low for each calendar day at Alpine. The lines show the 2026 daily maximum and minimum. 19 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Alpine, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	22.2 C (72.0 F)	-35.6 C (-32.1 F)	14.4 C (57.9 F)	-20.6 C (-5.1 F)
Feb	22.2 C (72.0 F)	-33.3 C (-27.9 F)	21.1 C (70.0 F)	-11.1 C (12.0 F)
Mar	26.7 C (80.1 F)	-31.7 C (-25.1 F)	26.7 C (80.1 F)	-10.0 C (14.0 F)
Apr	26.1 C (79.0 F)	-21.1 C (-6.0 F)	20.0 C (68.0 F)	-8.9 C (16.0 F)
May	33.3 C (91.9 F)	-13.3 C (8.1 F)	26.7 C (80.1 F)	-3.9 C (25.0 F)
Jun	34.4 C (93.9 F)	-10.6 C (12.9 F)	28.9 C (84.0 F)	-2.2 C (28.0 F)
Jul	34.4 C (93.9 F)	-2.8 C (27.0 F)	30.0 C (86.0 F)	0.6 C (33.1 F)
Aug	31.7 C (89.1 F)	-1.7 C (28.9 F)	30.6 C (87.1 F)	6.7 C (44.1 F)
Sep	30.6 C (87.1 F)	-8.3 C (17.1 F)	25.6 C (78.1 F)	2.2 C (36.0 F)
Oct	30.0 C (86.0 F)	-18.3 C (-0.9 F)	22.2 C (72.0 F)	-1.1 C (30.0 F)
Nov	25.0 C (77.0 F)	-27.8 C (-18.0 F)	n/a	n/a
Dec	22.2 C (72.0 F)	-33.3 C (-27.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Alpine still stand. 2010 holds the most, with 40.

Standing records at Alpine by the year they were set
Year set	Standing records
1912	6
1913	18
1914	10
1915	12
1916	21
1917	7
1918	11
1921	12
1922	7
1923	2
1924	2
1925	17
1926	14
1927	25
1928	13
1929	24
1930	12
1931	18
1932	21
1933	3
1934	7
1935	5
1936	5
1937	7
1938	9
1939	11
1940	11
1941	15
1942	8
1943	16
1944	9
1945	10
1946	11
1947	18
1948	30
1949	23
1950	29
1951	26
1952	13
1953	27
1954	10
1955	19
1956	19
1957	11
1958	24
1959	8
1960	15
1961	15
1962	14
1963	12
1964	11
1965	17
1966	5
1967	20
1968	7
1969	17
1970	8
1971	20
1972	12
1973	22
1974	8
1975	15
1976	16
1977	6
1978	5
1979	15
1980	13
1981	8
1982	11
1983	11
1984	10
1985	11
1986	10
1987	5
1988	7
1989	11
1990	18
1991	13
1992	12
1993	5
1994	2
1995	10
1996	14
1997	10
1998	7
1999	9
2000	22
2001	4
2002	12
2003	10
2004	9
2005	5
2006	12
2007	7
2008	5
2009	13
2010	40
2011	19
2012	19
2013	20
2014	13
2015	8
2016	12
2017	6
2018	22
2019	8
2020	12
2021	14
2022	15
2023	22
2024	8
2025	18
2026	16

All-Time Record Progression

14 new records

14 all-time records were set at Alpine between 27 January 1949 and 22 February 2019. Each dot is a new record.

When Alpine set new all-time records
Date	Kind	Detail
1949-01-27	Record snow depth	Record snow depth 81.3 cm (32.0 in)
1958-07-23	Record high minimum temperature	Record high minimum temperature 21.7 C (71.1 F)
1967-12-16	Record snow depth	Record snow depth 88.9 cm (35.0 in)
1967-12-17	Record snow depth	Record snow depth 104.1 cm (41.0 in)
1967-12-19	Record snow depth	Record snow depth 119.4 cm (47.0 in)
1967-12-20	Record snow depth	Record snow depth 147.3 cm (58.0 in)
1967-12-21	Record snow depth	Record snow depth 152.4 cm (60.0 in)
1971-01-06	Record low minimum temperature	Record low minimum temperature -34.4 C (-29.9 F)
1972-10-19	Record daily precipitation	Record daily precipitation 63.0 mm (2.5 in)
1973-06-27	Record high maximum temperature	Record high maximum temperature 34.4 C (93.9 F)
1979-01-30	Record low minimum temperature	Record low minimum temperature -35.6 C (-32.1 F)
1992-08-24	Record daily precipitation	Record daily precipitation 67.1 mm (2.6 in)
1994-09-03	Record daily precipitation	Record daily precipitation 70.4 mm (2.8 in)
2019-02-22	Record daily snowfall	Record daily snowfall 61.0 cm (24.0 in)

Wettest Day of Each Month

Aug: 70.4 mm (2.8 in)

The wettest day on record for each calendar month at Alpine. The most was 70.4 mm (2.8 in) on 3 August 1999.

Record daily precipitation for each month at Alpine
Month	Record daily precipitation (mm)	Date
Jan	61.0 mm (2.4 in)	19 January 1930
Feb	53.3 mm (2.1 in)	19 February 1917
Mar	46.0 mm (1.8 in)	18 March 1930
Apr	43.2 mm (1.7 in)	5 April 1939
May	32.3 mm (1.3 in)	23 May 2008
Jun	50.8 mm (2.0 in)	29 June 1937
Jul	63.5 mm (2.5 in)	29 July 1999
Aug	70.4 mm (2.8 in)	3 August 1999
Sep	70.4 mm (2.8 in)	3 September 1994
Oct	63.0 mm (2.5 in)	19 October 1972
Nov	51.3 mm (2.0 in)	12 November 1994
Dec	67.1 mm (2.6 in)	4 December 2022

Period of Record Coverage

1912 to 2026

114 years of record at Alpine, 1912 to 2026. 64 years have data for under 90 percent of days and are left out of rankings: 1912, 1913, 1914, 1916, 1917, 1918, 1920, 1921 and others.

Days with data per year at Alpine
Year	Days with data	Share of year	Complete
1912	304	83%	No
1913	317	87%	No
1914	325	89%	No
1915	331	91%	Yes
1916	274	75%	No
1917	190	52%	No
1918	93	25%	No
1920	12	3%	No
1921	204	56%	No
1922	132	36%	No
1923	31	8%	No
1924	67	18%	No
1925	182	50%	No
1926	241	66%	No
1927	239	65%	No
1928	296	81%	No
1929	276	76%	No
1930	235	64%	No
1931	293	80%	No
1932	246	67%	No
1933	176	48%	No
1934	70	19%	No
1935	155	42%	No
1936	119	33%	No
1937	106	29%	No
1938	189	52%	No
1939	194	53%	No
1940	317	87%	No
1941	332	91%	Yes
1942	340	93%	Yes
1943	309	85%	No
1944	260	71%	No
1945	281	77%	No
1946	286	78%	No
1947	321	88%	No
1948	297	81%	No
1949	302	83%	No
1950	305	84%	No
1951	318	87%	No
1952	343	94%	Yes
1953	307	84%	No
1954	292	80%	No
1955	324	89%	No
1956	351	96%	Yes
1957	341	93%	Yes
1958	359	98%	Yes
1959	347	95%	Yes
1960	366	100%	Yes
1961	365	100%	Yes
1962	365	100%	Yes
1963	333	91%	Yes
1964	316	86%	No
1965	348	95%	Yes
1966	267	73%	No
1967	301	82%	No
1968	275	75%	No
1969	287	79%	No
1970	351	96%	Yes
1971	353	97%	Yes
1972	311	85%	No
1973	317	87%	No
1974	327	90%	No
1975	356	98%	Yes
1976	341	93%	Yes
1977	285	78%	No
1978	312	85%	No
1979	278	76%	No
1980	305	83%	No
1981	298	82%	No
1982	267	73%	No
1983	271	74%	No
1984	293	80%	No
1985	334	92%	Yes
1986	338	93%	Yes
1987	343	94%	Yes
1988	348	95%	Yes
1989	350	96%	Yes
1990	352	96%	Yes
1991	347	95%	Yes
1992	344	94%	Yes
1993	328	90%	No
1994	306	84%	No
1995	360	99%	Yes
1996	359	98%	Yes
1997	354	97%	Yes
1998	353	97%	Yes
1999	353	97%	Yes
2000	357	98%	Yes
2001	354	97%	Yes
2002	351	96%	Yes
2003	343	94%	Yes
2004	358	98%	Yes
2005	351	96%	Yes
2006	333	91%	Yes
2007	348	95%	Yes
2008	263	72%	No
2009	286	78%	No
2010	338	93%	Yes
2011	336	92%	Yes
2012	360	98%	Yes
2013	337	92%	Yes
2014	350	96%	Yes
2015	294	81%	No
2016	345	94%	Yes
2017	354	97%	Yes
2018	325	89%	No
2019	324	89%	No
2020	266	73%	No
2021	336	92%	Yes
2022	365	100%	Yes
2023	336	92%	Yes
2024	337	92%	Yes
2025	340	93%	Yes
2026	256	70%	No

Latest Records

Latest records at Alpine
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 September 2026	Alpine, US	daily high min (Provisional)	8.9 C (48.0 F)	0.6 C (1.1 F)	39 years	22 of 100 (Routine)
13 September 2026	Alpine, US	daily rain (Provisional)	34.3 mm (1.4 in)	9.7 mm (0.38 in)	47 years	35 of 100 (Notable)
28 August 2026	Alpine, US	daily high max (Tie, Provisional)	28.9 C (84.0 F)	tie	100 years	10 of 100 (Routine)
22 August 2026	Alpine, US	daily high min (Provisional)	11.7 C (53.1 F)	1.1 C (2.0 F)	37 years	25 of 100 (Routine)
5 August 2026	Alpine, US	daily high max (Tie)	30.6 C (87.1 F)	tie	3 years	2 of 100 (Routine)
3 August 2026	Alpine, US	daily high max	30.6 C (87.1 F)	0.6 C (1.1 F)	73 years	34 of 100 (Routine)
30 July 2026	Alpine, US	daily high max (Tie)	29.4 C (84.9 F)	tie	53 years	6 of 100 (Routine)
17 June 2026	Alpine, US	daily rain	8.4 mm (0.33 in)	2.0 mm (0.08 in)	11 years	16 of 100 (Routine)
25 May 2026	Alpine, US	daily rain	24.1 mm (0.9 in)	15.2 mm (0.6 in)	47 years	20 of 100 (Routine)
22 April 2026	Alpine, US	daily high min (Tie)	5.6 C (42.1 F)	tie	51 years	6 of 100 (Routine)
29 March 2026	Alpine, US	daily high max (Tie)	20.6 C (69.1 F)	tie	55 years	6 of 100 (Routine)
27 March 2026	Alpine, US	daily high max	22.8 C (73.0 F)	1.7 C (3.1 F)	55 years	29 of 100 (Routine)
26 March 2026	Alpine, US	daily high max	25.0 C (77.0 F)	1.7 C (3.1 F)	97 years	42 of 100 (Notable)
25 March 2026	Alpine, US	daily high max	25.6 C (78.1 F)	3.9 C (7.0 F)	0 years	17 of 100 (Routine)
24 March 2026	Alpine, US	daily high max	25.0 C (77.0 F)	5.0 C (9.0 F)	104 years	50 of 100 (Notable)
23 March 2026	Alpine, US	daily high max	22.8 C (73.0 F)	0.6 C (1.1 F)	55 years	27 of 100 (Routine)
22 March 2026	Alpine, US	daily high max	23.3 C (73.9 F)	2.7 C (4.9 F)	95 years	43 of 100 (Notable)
21 March 2026	Alpine, US	monthly high max	26.7 C (80.1 F)	0.6 C (1.1 F)	0 years	21 of 100 (Routine)
20 March 2026	Alpine, US	monthly high max (Tie)	26.1 C (79.0 F)	tie	0 years	5 of 100 (Routine)
19 March 2026	Alpine, US	monthly high max	26.1 C (79.0 F)	2.2 C (4.0 F)	0 years	24 of 100 (Routine)

Climate Trend

41 complete years, 1931 to 2022

One stripe for each of 41 complete years at Alpine, 1931 to 2022. Blue stripes are years cooler than the station's own mean of 7.0 C (44.5 F); red stripes are warmer. The coolest year was 1941, at 5.3 C (41.5 F), and the warmest was 2017, at 8.8 C (47.9 F). The strongest colour marks a difference of 1.9 C (3.4 F).

Annual mean temperature at Alpine as warming stripes, 1931 to 2022
Year	Annual mean temperature	Difference from the station mean
1931	6.5 C	-0.41 C
1941	5.3 C	-1.66 C
1942	5.8 C	-1.13 C
1952	5.8 C	-1.11 C
1955	5.8 C	-1.14 C
1956	6.0 C	-0.96 C
1957	6.9 C	-0.10 C
1960	6.4 C	-0.56 C
1961	6.6 C	-0.38 C
1962	7.0 C	+0.01 C
1970	6.9 C	-0.06 C
1971	6.6 C	-0.31 C
1974	6.5 C	-0.48 C
1975	5.8 C	-1.17 C
1976	6.1 C	-0.81 C
1985	6.9 C	-0.06 C
1986	7.3 C	+0.37 C
1987	6.2 C	-0.71 C
1988	6.8 C	-0.14 C
1990	6.5 C	-0.41 C
1991	6.1 C	-0.90 C
1992	6.3 C	-0.70 C
1993	6.6 C	-0.32 C
1995	7.2 C	+0.24 C
1996	8.0 C	+1.01 C
1997	6.6 C	-0.37 C
1998	7.1 C	+0.19 C
1999	8.1 C	+1.19 C
2000	8.1 C	+1.18 C
2001	7.5 C	+0.56 C
2002	7.5 C	+0.54 C
2003	8.1 C	+1.16 C
2004	7.0 C	+0.09 C
2005	7.8 C	+0.83 C
2007	7.5 C	+0.55 C
2010	7.7 C	+0.74 C
2011	7.5 C	+0.53 C
2016	7.9 C	+0.95 C
2017	8.8 C	+1.86 C
2021	8.0 C	+1.09 C
2022	7.8 C	+0.81 C

The annual mean temperature here has risen by 0.3 C (0.2 to 0.3) per decade over 1931 to 2022. In Fahrenheit: 0.5 F (0.3 to 0.6) per decade. The slope is a straight line fitted to 41 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Alpine
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.2 to 0.3) per decade	0.5 F (0.3 to 0.6) per decade	1931 to 2022	41	Rise
Mean daily maximum	0.07 C (-0.04 to 0.17) per decade	0.1 F (-0.1 to 0.3) per decade	1931 to 2022	41	Not clearly different from zero
Mean daily minimum	0.5 C (0.4 to 0.6) per decade	0.8 F (0.7 to 1.0) per decade	1931 to 2022	41	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

1904 to 2026

Yearly extremes at Alpine: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.4 C (93.9 F)	1973	31.1 C (88.0 F)	114
Coldest night (TNn)	-35.6 C (-32.1 F)	1979	-25.0 C (-13.0 F)	114
Wettest day (Rx1day)	70.4 mm (2.8 in)	1994	39.4 mm (1.6 in)	118
Wettest five days (Rx5day)	149.4 mm (5.9 in)	1916	61.5 mm (2.4 in)	118
Longest dry spell (CDD)	150 days	1972	42 days	118

Hottest day (TXx)

The hottest day of the year at Alpine, 1904 to 2026. The record is 34.4 C (93.9 F) in 1973, marked on the chart; the median year is 31.1 C (88.0 F).

Hottest day (TXx) at Alpine by year
Year	Hottest day (TXx)
1904	n/a
1905	n/a
1906	n/a
1912	31.1 C (88.0 F)
1913	31.7 C (89.1 F)
1914	30.6 C (87.1 F)
1915	30.0 C (86.0 F)
1916	32.2 C (90.0 F)
1917	31.7 C (89.1 F)
1918	33.3 C (91.9 F)
1919	n/a
1920	15.6 C (60.1 F)
1921	30.6 C (87.1 F)
1922	32.8 C (91.0 F)
1923	16.1 C (61.0 F)
1924	33.3 C (91.9 F)
1925	27.8 C (82.0 F)
1926	30.0 C (86.0 F)
1927	31.7 C (89.1 F)
1928	31.7 C (89.1 F)
1929	33.3 C (91.9 F)
1930	32.2 C (90.0 F)
1931	31.1 C (88.0 F)
1932	32.2 C (90.0 F)
1933	30.0 C (86.0 F)
1934	26.1 C (79.0 F)
1935	30.0 C (86.0 F)
1936	33.3 C (91.9 F)
1937	31.7 C (89.1 F)
1938	29.4 C (84.9 F)
1939	32.2 C (90.0 F)
1940	31.1 C (88.0 F)
1941	28.3 C (82.9 F)
1942	31.7 C (89.1 F)
1943	30.0 C (86.0 F)
1944	29.4 C (84.9 F)
1945	31.1 C (88.0 F)
1946	30.0 C (86.0 F)
1947	30.0 C (86.0 F)
1948	32.2 C (90.0 F)
1949	29.4 C (84.9 F)
1950	32.2 C (90.0 F)
1951	33.3 C (91.9 F)
1952	31.7 C (89.1 F)
1953	31.7 C (89.1 F)
1954	31.7 C (89.1 F)
1955	33.3 C (91.9 F)
1956	31.1 C (88.0 F)
1957	31.7 C (89.1 F)
1958	32.8 C (91.0 F)
1959	30.6 C (87.1 F)
1960	32.2 C (90.0 F)
1961	31.1 C (88.0 F)
1962	30.6 C (87.1 F)
1963	31.1 C (88.0 F)
1964	31.7 C (89.1 F)
1965	29.4 C (84.9 F)
1966	30.6 C (87.1 F)
1967	31.7 C (89.1 F)
1968	31.1 C (88.0 F)
1969	30.0 C (86.0 F)
1970	31.7 C (89.1 F)
1971	32.2 C (90.0 F)
1972	31.7 C (89.1 F)
1973	34.4 C (93.9 F)
1974	33.3 C (91.9 F)
1975	30.0 C (86.0 F)
1976	30.0 C (86.0 F)
1977	30.6 C (87.1 F)
1978	30.6 C (87.1 F)
1979	34.4 C (93.9 F)
1980	31.7 C (89.1 F)
1981	31.7 C (89.1 F)
1982	31.7 C (89.1 F)
1983	33.3 C (91.9 F)
1984	28.9 C (84.0 F)
1985	31.7 C (89.1 F)
1986	28.3 C (82.9 F)
1987	30.0 C (86.0 F)
1988	28.9 C (84.0 F)
1989	32.8 C (91.0 F)
1990	31.1 C (88.0 F)
1991	28.9 C (84.0 F)
1992	29.4 C (84.9 F)
1993	31.1 C (88.0 F)
1994	31.1 C (88.0 F)
1995	32.2 C (90.0 F)
1996	31.1 C (88.0 F)
1997	30.6 C (87.1 F)
1998	33.9 C (93.0 F)
1999	31.7 C (89.1 F)
2000	30.6 C (87.1 F)
2001	29.4 C (84.9 F)
2002	31.7 C (89.1 F)
2003	31.7 C (89.1 F)
2004	30.0 C (86.0 F)
2005	31.7 C (89.1 F)
2006	30.6 C (87.1 F)
2007	31.7 C (89.1 F)
2008	29.4 C (84.9 F)
2009	28.9 C (84.0 F)
2010	31.7 C (89.1 F)
2011	31.7 C (89.1 F)
2012	31.1 C (88.0 F)
2013	32.2 C (90.0 F)
2014	31.1 C (88.0 F)
2015	31.1 C (88.0 F)
2016	32.2 C (90.0 F)
2017	31.1 C (88.0 F)
2018	30.0 C (86.0 F)
2019	28.9 C (84.0 F)
2020	31.1 C (88.0 F)
2021	32.2 C (90.0 F)
2022	30.0 C (86.0 F)
2023	32.2 C (90.0 F)
2024	30.6 C (87.1 F)
2025	31.1 C (88.0 F)
2026	30.6 C (87.1 F)

Coldest night (TNn)

The coldest night of the year at Alpine, 1904 to 2026. The record is -35.6 C (-32.1 F) in 1979, marked on the chart; the median year is -25.0 C (-13.0 F).

Coldest night (TNn) at Alpine by year
Year	Coldest night (TNn)
1904	n/a
1905	n/a
1906	n/a
1912	-30.6 C (-23.1 F)
1913	-26.1 C (-15.0 F)
1914	-25.0 C (-13.0 F)
1915	-24.4 C (-11.9 F)
1916	-28.3 C (-18.9 F)
1917	-21.7 C (-7.1 F)
1918	-26.1 C (-15.0 F)
1919	n/a
1920	-16.1 C (3.0 F)
1921	-25.0 C (-13.0 F)
1922	-27.8 C (-18.0 F)
1923	-16.7 C (1.9 F)
1924	-17.8 C (0.0 F)
1925	-17.2 C (1.0 F)
1926	-23.3 C (-9.9 F)
1927	-27.2 C (-17.0 F)
1928	-25.6 C (-14.1 F)
1929	-28.9 C (-20.0 F)
1930	-27.8 C (-18.0 F)
1931	-30.6 C (-23.1 F)
1932	-30.6 C (-23.1 F)
1933	-27.2 C (-17.0 F)
1934	-17.8 C (0.0 F)
1935	-23.3 C (-9.9 F)
1936	-25.6 C (-14.1 F)
1937	-32.8 C (-27.0 F)
1938	-22.2 C (-8.0 F)
1939	-30.6 C (-23.1 F)
1940	-26.1 C (-15.0 F)
1941	-22.2 C (-8.0 F)
1942	-29.4 C (-20.9 F)
1943	-26.1 C (-15.0 F)
1944	-22.8 C (-9.0 F)
1945	-28.9 C (-20.0 F)
1946	-26.7 C (-16.1 F)
1947	-26.7 C (-16.1 F)
1948	-33.3 C (-27.9 F)
1949	-33.9 C (-29.0 F)
1950	-25.0 C (-13.0 F)
1951	-26.1 C (-15.0 F)
1952	-29.4 C (-20.9 F)
1953	-25.0 C (-13.0 F)
1954	-25.0 C (-13.0 F)
1955	-28.9 C (-20.0 F)
1956	-23.9 C (-11.0 F)
1957	-21.1 C (-6.0 F)
1958	-20.6 C (-5.1 F)
1959	-23.9 C (-11.0 F)
1960	-31.7 C (-25.1 F)
1961	-27.8 C (-18.0 F)
1962	-30.0 C (-22.0 F)
1963	-29.4 C (-20.9 F)
1964	-22.8 C (-9.0 F)
1965	-24.4 C (-11.9 F)
1966	-25.0 C (-13.0 F)
1967	-25.0 C (-13.0 F)
1968	-27.2 C (-17.0 F)
1969	-18.3 C (-0.9 F)
1970	-26.1 C (-15.0 F)
1971	-34.4 C (-29.9 F)
1972	-23.3 C (-9.9 F)
1973	-22.8 C (-9.0 F)
1974	-26.7 C (-16.1 F)
1975	-23.3 C (-9.9 F)
1976	-28.3 C (-18.9 F)
1977	-20.6 C (-5.1 F)
1978	-30.0 C (-22.0 F)
1979	-35.6 C (-32.1 F)
1980	-23.3 C (-9.9 F)
1981	-16.7 C (1.9 F)
1982	-25.6 C (-14.1 F)
1983	-23.3 C (-9.9 F)
1984	-20.6 C (-5.1 F)
1985	-25.0 C (-13.0 F)
1986	-21.7 C (-7.1 F)
1987	-25.0 C (-13.0 F)
1988	-23.3 C (-9.9 F)
1989	-21.1 C (-6.0 F)
1990	-30.0 C (-22.0 F)
1991	-21.1 C (-6.0 F)
1992	-25.0 C (-13.0 F)
1993	-26.1 C (-15.0 F)
1994	-25.0 C (-13.0 F)
1995	-21.7 C (-7.1 F)
1996	-16.7 C (1.9 F)
1997	-22.2 C (-8.0 F)
1998	-21.7 C (-7.1 F)
1999	-16.7 C (1.9 F)
2000	-21.1 C (-6.0 F)
2001	-25.6 C (-14.1 F)
2002	-25.0 C (-13.0 F)
2003	-22.2 C (-8.0 F)
2004	-22.2 C (-8.0 F)
2005	-20.0 C (-4.0 F)
2006	-23.9 C (-11.0 F)
2007	-21.7 C (-7.1 F)
2008	-22.8 C (-9.0 F)
2009	-25.0 C (-13.0 F)
2010	-18.9 C (-2.0 F)
2011	-29.4 C (-20.9 F)
2012	-23.9 C (-11.0 F)
2013	-27.8 C (-18.0 F)
2014	-18.3 C (-0.9 F)
2015	-18.9 C (-2.0 F)
2016	-23.9 C (-11.0 F)
2017	-21.7 C (-7.1 F)
2018	-25.0 C (-13.0 F)
2019	-18.9 C (-2.0 F)
2020	-16.1 C (3.0 F)
2021	-25.0 C (-13.0 F)
2022	-18.9 C (-2.0 F)
2023	-23.9 C (-11.0 F)
2024	-21.7 C (-7.1 F)
2025	-16.7 C (1.9 F)
2026	-20.6 C (-5.1 F)

Wettest day (Rx1day)

The wettest day of the year at Alpine, 1904 to 2026. The record is 70.4 mm (2.8 in) in 1994, marked on the chart; the median year is 39.4 mm (1.6 in).

Wettest day (Rx1day) at Alpine by year
Year	Wettest day (Rx1day)
1904	28.2 mm (1.1 in)
1905	40.6 mm (1.6 in)
1906	26.2 mm (1.0 in)
1912	35.8 mm (1.4 in)
1913	38.1 mm (1.5 in)
1914	45.2 mm (1.8 in)
1915	37.6 mm (1.5 in)
1916	61.2 mm (2.4 in)
1917	53.3 mm (2.1 in)
1918	40.1 mm (1.6 in)
1919	26.4 mm (1.0 in)
1920	25.4 mm (1.0 in)
1921	28.4 mm (1.1 in)
1922	25.4 mm (1.0 in)
1923	43.2 mm (1.7 in)
1924	45.7 mm (1.8 in)
1925	34.3 mm (1.4 in)
1926	34.3 mm (1.4 in)
1927	45.7 mm (1.8 in)
1928	38.9 mm (1.5 in)
1929	41.4 mm (1.6 in)
1930	61.0 mm (2.4 in)
1931	50.8 mm (2.0 in)
1932	33.0 mm (1.3 in)
1933	25.4 mm (1.0 in)
1934	17.8 mm (0.7 in)
1935	37.3 mm (1.5 in)
1936	36.1 mm (1.4 in)
1937	50.8 mm (2.0 in)
1938	39.9 mm (1.6 in)
1939	43.2 mm (1.7 in)
1940	29.7 mm (1.2 in)
1941	56.6 mm (2.2 in)
1942	23.9 mm (0.9 in)
1943	27.2 mm (1.1 in)
1944	41.7 mm (1.6 in)
1945	21.3 mm (0.8 in)
1946	28.4 mm (1.1 in)
1947	52.3 mm (2.1 in)
1948	16.8 mm (0.7 in)
1949	50.8 mm (2.0 in)
1950	24.9 mm (1.0 in)
1951	50.5 mm (2.0 in)
1952	45.0 mm (1.8 in)
1953	20.8 mm (0.8 in)
1954	40.6 mm (1.6 in)
1955	31.5 mm (1.2 in)
1956	28.2 mm (1.1 in)
1957	42.2 mm (1.7 in)
1958	24.6 mm (1.0 in)
1959	29.5 mm (1.2 in)
1960	49.5 mm (1.9 in)
1961	35.6 mm (1.4 in)
1962	25.7 mm (1.0 in)
1963	48.8 mm (1.9 in)
1964	41.7 mm (1.6 in)
1965	35.3 mm (1.4 in)
1966	43.2 mm (1.7 in)
1967	49.5 mm (1.9 in)
1968	19.1 mm (0.8 in)
1969	57.2 mm (2.3 in)
1970	29.2 mm (1.1 in)
1971	29.5 mm (1.2 in)
1972	63.0 mm (2.5 in)
1973	18.5 mm (0.7 in)
1974	42.9 mm (1.7 in)
1975	37.6 mm (1.5 in)
1976	35.6 mm (1.4 in)
1977	25.1 mm (1.0 in)
1978	48.5 mm (1.9 in)
1979	26.2 mm (1.0 in)
1980	41.1 mm (1.6 in)
1981	30.7 mm (1.2 in)
1982	31.5 mm (1.2 in)
1983	40.6 mm (1.6 in)
1984	38.4 mm (1.5 in)
1985	35.6 mm (1.4 in)
1986	24.1 mm (0.9 in)
1987	40.1 mm (1.6 in)
1988	36.8 mm (1.4 in)
1989	27.4 mm (1.1 in)
1990	34.5 mm (1.4 in)
1991	30.5 mm (1.2 in)
1992	67.1 mm (2.6 in)
1993	35.6 mm (1.4 in)
1994	70.4 mm (2.8 in)
1995	30.5 mm (1.2 in)
1996	48.3 mm (1.9 in)
1997	33.0 mm (1.3 in)
1998	40.6 mm (1.6 in)
1999	70.4 mm (2.8 in)
2000	40.6 mm (1.6 in)
2001	32.5 mm (1.3 in)
2002	57.7 mm (2.3 in)
2003	47.0 mm (1.9 in)
2004	31.8 mm (1.3 in)
2005	44.5 mm (1.8 in)
2006	41.1 mm (1.6 in)
2007	45.7 mm (1.8 in)
2008	53.3 mm (2.1 in)
2009	25.4 mm (1.0 in)
2010	50.8 mm (2.0 in)
2011	58.7 mm (2.3 in)
2012	40.6 mm (1.6 in)
2013	52.3 mm (2.1 in)
2014	43.4 mm (1.7 in)
2015	44.5 mm (1.8 in)
2016	59.4 mm (2.3 in)
2017	47.2 mm (1.9 in)
2018	38.9 mm (1.5 in)
2019	41.4 mm (1.6 in)
2020	35.6 mm (1.4 in)
2021	52.1 mm (2.1 in)
2022	67.1 mm (2.6 in)
2023	27.4 mm (1.1 in)
2024	41.7 mm (1.6 in)
2025	41.9 mm (1.6 in)
2026	36.8 mm (1.4 in)

Wettest five days (Rx5day)

The wettest five days of the year at Alpine, 1904 to 2026. The record is 149.4 mm (5.9 in) in 1916, marked on the chart; the median year is 61.5 mm (2.4 in).

Wettest five days (Rx5day) at Alpine by year
Year	Wettest five days (Rx5day)
1904	74.4 mm (2.9 in)
1905	80.0 mm (3.1 in)
1906	45.8 mm (1.8 in)
1912	73.6 mm (2.9 in)
1913	71.6 mm (2.8 in)
1914	70.5 mm (2.8 in)
1915	88.2 mm (3.5 in)
1916	149.4 mm (5.9 in)
1917	63.0 mm (2.5 in)
1918	65.9 mm (2.6 in)
1919	48.0 mm (1.9 in)
1920	36.8 mm (1.4 in)
1921	52.3 mm (2.1 in)
1922	40.8 mm (1.6 in)
1923	43.2 mm (1.7 in)
1924	45.7 mm (1.8 in)
1925	58.4 mm (2.3 in)
1926	51.1 mm (2.0 in)
1927	58.9 mm (2.3 in)
1928	66.0 mm (2.6 in)
1929	64.1 mm (2.5 in)
1930	68.9 mm (2.7 in)
1931	77.0 mm (3.0 in)
1932	53.8 mm (2.1 in)
1933	45.7 mm (1.8 in)
1934	24.7 mm (1.0 in)
1935	54.9 mm (2.2 in)
1936	51.8 mm (2.0 in)
1937	91.0 mm (3.6 in)
1938	41.7 mm (1.6 in)
1939	45.0 mm (1.8 in)
1940	48.9 mm (1.9 in)
1941	89.1 mm (3.5 in)
1942	40.6 mm (1.6 in)
1943	46.6 mm (1.8 in)
1944	73.4 mm (2.9 in)
1945	33.7 mm (1.3 in)
1946	38.3 mm (1.5 in)
1947	55.1 mm (2.2 in)
1948	46.2 mm (1.8 in)
1949	112.1 mm (4.4 in)
1950	37.3 mm (1.5 in)
1951	73.2 mm (2.9 in)
1952	56.4 mm (2.2 in)
1953	42.6 mm (1.7 in)
1954	92.7 mm (3.6 in)
1955	41.1 mm (1.6 in)
1956	42.5 mm (1.7 in)
1957	92.2 mm (3.6 in)
1958	49.8 mm (2.0 in)
1959	43.2 mm (1.7 in)
1960	59.4 mm (2.3 in)
1961	66.5 mm (2.6 in)
1962	38.9 mm (1.5 in)
1963	66.4 mm (2.6 in)
1964	83.1 mm (3.3 in)
1965	48.5 mm (1.9 in)
1966	49.8 mm (2.0 in)
1967	112.7 mm (4.4 in)
1968	50.2 mm (2.0 in)
1969	74.9 mm (2.9 in)
1970	49.3 mm (1.9 in)
1971	57.0 mm (2.2 in)
1972	116.9 mm (4.6 in)
1973	47.0 mm (1.9 in)
1974	84.8 mm (3.3 in)
1975	99.2 mm (3.9 in)
1976	52.1 mm (2.1 in)
1977	63.3 mm (2.5 in)
1978	94.3 mm (3.7 in)
1979	60.5 mm (2.4 in)
1980	74.4 mm (2.9 in)
1981	50.3 mm (2.0 in)
1982	52.6 mm (2.1 in)
1983	109.5 mm (4.3 in)
1984	67.9 mm (2.7 in)
1985	46.4 mm (1.8 in)
1986	47.0 mm (1.9 in)
1987	79.8 mm (3.1 in)
1988	71.1 mm (2.8 in)
1989	59.9 mm (2.4 in)
1990	79.1 mm (3.1 in)
1991	61.2 mm (2.4 in)
1992	71.9 mm (2.8 in)
1993	68.1 mm (2.7 in)
1994	80.0 mm (3.1 in)
1995	53.4 mm (2.1 in)
1996	88.1 mm (3.5 in)
1997	49.1 mm (1.9 in)
1998	73.4 mm (2.9 in)
1999	104.4 mm (4.1 in)
2000	98.9 mm (3.9 in)
2001	65.6 mm (2.6 in)
2002	84.1 mm (3.3 in)
2003	61.7 mm (2.4 in)
2004	59.7 mm (2.4 in)
2005	63.8 mm (2.5 in)
2006	75.0 mm (3.0 in)
2007	96.5 mm (3.8 in)
2008	49.0 mm (1.9 in)
2009	31.8 mm (1.3 in)
2010	72.2 mm (2.8 in)
2011	75.5 mm (3.0 in)
2012	49.6 mm (2.0 in)
2013	62.5 mm (2.5 in)
2014	63.3 mm (2.5 in)
2015	73.2 mm (2.9 in)
2016	69.0 mm (2.7 in)
2017	53.0 mm (2.1 in)
2018	51.3 mm (2.0 in)
2019	45.0 mm (1.8 in)
2020	67.4 mm (2.7 in)
2021	97.2 mm (3.8 in)
2022	69.6 mm (2.7 in)
2023	28.7 mm (1.1 in)
2024	56.4 mm (2.2 in)
2025	53.1 mm (2.1 in)
2026	80.8 mm (3.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Alpine, 1904 to 2026. The record is 150 days in 1972, marked on the chart; the median year is 42 days.

Longest dry spell (CDD) at Alpine by year
Year	Longest dry spell (CDD)
1904	53 days
1905	39 days
1906	32 days
1912	50 days
1913	34 days
1914	40 days
1915	27 days
1916	70 days
1917	71 days
1918	38 days
1919	12 days
1920	23 days
1921	55 days
1922	44 days
1923	16 days
1924	43 days
1925	37 days
1926	26 days
1927	31 days
1928	45 days
1929	44 days
1930	40 days
1931	24 days
1932	40 days
1933	49 days
1934	30 days
1935	26 days
1936	34 days
1937	53 days
1938	39 days
1939	63 days
1940	18 days
1941	16 days
1942	61 days
1943	40 days
1944	50 days
1945	49 days
1946	41 days
1947	34 days
1948	55 days
1949	30 days
1950	48 days
1951	50 days
1952	33 days
1953	43 days
1954	37 days
1955	39 days
1956	39 days
1957	25 days
1958	42 days
1959	67 days
1960	30 days
1961	34 days
1962	61 days
1963	38 days
1964	34 days
1965	37 days
1966	65 days
1967	41 days
1968	25 days
1969	48 days
1970	37 days
1971	56 days
1972	150 days
1973	54 days
1974	49 days
1975	30 days
1976	39 days
1977	49 days
1978	24 days
1979	30 days
1980	48 days
1981	54 days
1982	48 days
1983	32 days
1984	70 days
1985	19 days
1986	22 days
1987	22 days
1988	46 days
1989	49 days
1990	23 days
1991	53 days
1992	21 days
1993	44 days
1994	29 days
1995	41 days
1996	75 days
1997	40 days
1998	44 days
1999	99 days
2000	65 days
2001	49 days
2002	40 days
2003	69 days
2004	75 days
2005	74 days
2006	41 days
2007	43 days
2008	47 days
2009	38 days
2010	36 days
2011	66 days
2012	67 days
2013	56 days
2014	46 days
2015	25 days
2016	63 days
2017	54 days
2018	81 days
2019	42 days
2020	40 days
2021	15 days
2022	119 days
2023	47 days
2024	54 days
2025	65 days
2026	25 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

41 years with a frost

Across 41 years with a frost, the median last spring frost at Alpine falls on 20 June and the median first autumn frost on 12 September, which leaves a median of 84 days between them.

Fitted over all years, the growing season changes by +3.5 days per decade at this station.

Frost dates and growing season at Alpine
Measure	Median, all years	Earliest period	Recent period (1971 to 2022)	Recent against earliest	Fitted trend
Last spring frost	20 June	n/a	20 June	n/a	-1.4 days per decade
First autumn frost	12 September	n/a	17 September	n/a	+2.2 days per decade
Growing days	84 days	n/a	87 days	n/a	+3.5 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

86 years, 1905 to 2025

A day with at least 38.4 mm (1.5 in) of rain is expected about once in 2 years. A day with at least 74.7 mm (2.9 in) of rain is expected about once in 100 years.

Rainfall return levels at Alpine: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	38.4 mm (1.5 in)
5 years	49.7 mm (2.0 in)
10 years	56.5 mm (2.2 in)
25 years	64.4 mm (2.5 in)
50 years	69.7 mm (2.7 in)
100 years	74.7 mm (2.9 in)	Longer than the 86 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, 86 years of values from 1905 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: 70.4 mm (2.8 in) in 1994; 70.4 mm (2.8 in) in 1999; 67.1 mm (2.6 in) in 1992.

Station Changes

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

Download the Data

Data for Alpine standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Alpine 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 2026-10-13. Last revised 13 October 2026 (2026-10-13).