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Almanac · Alturas, CA · Climate Almanac
📖 Climate Almanac

Alturas, CA

41.484°N, 120.561°W · station AATthr · 1935–2026 · 92 years of record

The Almanac Ribbon

Every day of the year at Alturas: the record high and record low ever set (outer lines), the everyday normal range (shaded band), and the full record envelope behind it.
-40-20020406080100JanFebMarAprMayJunJulAugSepOctNovDechottestsince.com · coldestsince.com
Record high Record low Normal high–low band (1991–2020) hottest ever 107°F · coldest ever -34°F

Records by Month

MonthRecord highRecord low
Jan69°Jan 21, 1961-32°Jan 20, 1937
Feb72°Feb 28, 1986-33°Feb 5, 1989
Mar82°Mar 30, 1966-7°Mar 1, 1971
Apr85°Apr 28, 19877°Apr 5, 1997
May95°May 29, 198314°May 6, 2010
Jun105°Jun 28, 202121°Jun 18, 1973
Jul107°Jul 19, 196028°Jul 1, 1976
Aug106°Aug 4, 196126°Aug 23, 1960
Sep106°Sep 4, 195515°Sep 30, 1950
Oct93°Oct 15, 19610°Oct 31, 2002
Nov82°Nov 1, 1962-17°Nov 12, 1985
Dec71°Dec 4, 1939-34°Dec 9, 1972
All-time107°Jul 19, 1960-34°Dec 9, 1972

Longest-Standing Records

The daily records that have held the longest — set in the earliest years and never beaten since. Highs power Alturas on hottestsince.com; lows on coldestsince.com.

Oldest-standing record highs

DateRecordSetStanding
Jul 13102°193591yrs
Sep 2191°193690yrs
Nov 1471°193690yrs
Nov 1574°193690yrs
Nov 1872°193690yrs
Nov 1976°193690yrs
Nov 2074°193690yrs
Nov 2172°193690yrs
Sep 1294°193789yrs
Sep 1393°193789yrs
Sep 1495°193789yrs
Sep 1594°193789yrs

Oldest-standing record lows

DateRecordSetStanding
Oct 2215°193591yrs
Oct 2314°193591yrs
Nov 22°193591yrs
Mar 314°193690yrs
Apr 110°193690yrs
Sep 1521°193690yrs
Sep 1622°193690yrs
Nov 66°193690yrs
Nov 85°193690yrs
Nov 94°193690yrs
Nov 104°193690yrs
Jan 3-11°193789yrs

All-Time Extremes

Hottest ever

107°F
1960-07-19

Coldest ever

-34°F
1972-12-09

Longest heat streak

32 days
≥ 90°F · ended 1971-08-15

The Warming Trend

Alturas's annual mean temperature, each year a stripe — blue below the 1991–2020 average, red above.
1936: 47.3°F (+0.0 vs 1991–2020)1937: 48.1°F (+0.8 vs 1991–2020)1938: 47.0°F (-0.3 vs 1991–2020)1939: 47.5°F (+0.2 vs 1991–2020)1940: 49.3°F (+2.0 vs 1991–2020)1941: 47.2°F (-0.1 vs 1991–2020)1942: 46.0°F (-1.3 vs 1991–2020)1943: 46.4°F (-0.9 vs 1991–2020)1944: 45.1°F (-2.2 vs 1991–2020)1945: 46.8°F (-0.5 vs 1991–2020)1946: 46.6°F (-0.7 vs 1991–2020)1947: 47.3°F (-0.0 vs 1991–2020)1948: 43.9°F (-3.4 vs 1991–2020)1949: 44.6°F (-2.7 vs 1991–2020)1950: 48.1°F (+0.8 vs 1991–2020)1951: 47.3°F (+0.0 vs 1991–2020)1952: 46.5°F (-0.8 vs 1991–2020)1953: 47.4°F (+0.1 vs 1991–2020)1954: 48.1°F (+0.8 vs 1991–2020)1955: 45.9°F (-1.4 vs 1991–2020)1956: 47.4°F (+0.1 vs 1991–2020)1957: 47.1°F (-0.2 vs 1991–2020)1958: 50.0°F (+2.7 vs 1991–2020)1959: 48.0°F (+0.7 vs 1991–2020)1960: 48.0°F (+0.7 vs 1991–2020)1961: 48.6°F (+1.3 vs 1991–2020)1962: 47.5°F (+0.2 vs 1991–2020)1963: 47.8°F (+0.5 vs 1991–2020)1964: 45.6°F (-1.7 vs 1991–2020)1965: 46.6°F (-0.7 vs 1991–2020)1966: 48.4°F (+1.1 vs 1991–2020)1967: 47.3°F (+0.0 vs 1991–2020)1968: 47.4°F (+0.1 vs 1991–2020)1969: 47.2°F (-0.1 vs 1991–2020)1970: 46.3°F (-1.0 vs 1991–2020)1971: 44.5°F (-2.8 vs 1991–2020)1972: 45.4°F (-1.9 vs 1991–2020)1973: 46.5°F (-0.8 vs 1991–2020)1974: 46.0°F (-1.3 vs 1991–2020)1975: 44.2°F (-3.1 vs 1991–2020)1976: 45.2°F (-2.1 vs 1991–2020)1977: 44.8°F (-2.5 vs 1991–2020)1978: 45.6°F (-1.7 vs 1991–2020)1979: 45.8°F (-1.5 vs 1991–2020)1980: 47.4°F (+0.1 vs 1991–2020)1981: 47.8°F (+0.5 vs 1991–2020)1982: 44.0°F (-3.3 vs 1991–2020)1983: 46.3°F (-1.0 vs 1991–2020)1984: 45.7°F (-1.6 vs 1991–2020)1985: 45.0°F (-2.3 vs 1991–2020)1986: 48.3°F (+1.0 vs 1991–2020)1987: 48.1°F (+0.8 vs 1991–2020)1988: 47.7°F (+0.4 vs 1991–2020)1989: 45.2°F (-2.1 vs 1991–2020)1990: 46.3°F (-1.0 vs 1991–2020)1991: 46.6°F (-0.7 vs 1991–2020)1992: 48.7°F (+1.4 vs 1991–2020)1993: 44.8°F (-2.5 vs 1991–2020)1994: 46.5°F (-0.8 vs 1991–2020)1995: 48.4°F (+1.1 vs 1991–2020)1996: 48.2°F (+0.9 vs 1991–2020)1997: 47.2°F (-0.1 vs 1991–2020)1998: 44.8°F (-2.5 vs 1991–2020)1999: 46.7°F (-0.6 vs 1991–2020)2000: 47.1°F (-0.2 vs 1991–2020)2001: 47.2°F (-0.1 vs 1991–2020)2002: 47.2°F (-0.1 vs 1991–2020)2003: 48.2°F (+0.9 vs 1991–2020)2004: 47.5°F (+0.2 vs 1991–2020)2005: 46.8°F (-0.5 vs 1991–2020)2006: 47.1°F (-0.2 vs 1991–2020)2007: 46.7°F (-0.6 vs 1991–2020)2008: 45.7°F (-1.6 vs 1991–2020)2009: 46.9°F (-0.4 vs 1991–2020)2010: 47.1°F (-0.2 vs 1991–2020)2011: 45.5°F (-1.8 vs 1991–2020)2012: 47.5°F (+0.2 vs 1991–2020)2013: 46.1°F (-1.2 vs 1991–2020)2014: 50.4°F (+3.1 vs 1991–2020)2015: 50.0°F (+2.7 vs 1991–2020)2016: 48.7°F (+1.4 vs 1991–2020)2017: 48.6°F (+1.3 vs 1991–2020)2018: 47.9°F (+0.6 vs 1991–2020)2019: 47.4°F (+0.1 vs 1991–2020)2020: 48.1°F (+0.8 vs 1991–2020)2021: 48.3°F (+1.0 vs 1991–2020)2022: 46.8°F (-0.5 vs 1991–2020)2023: 47.0°F (-0.3 vs 1991–2020)2024: 49.2°F (+1.9 vs 1991–2020)2025: 49.4°F (+2.1 vs 1991–2020)19362025annual mean temperature · warmer ▲ redder

Days Above / Below the Mark

40 days ≥90°F in 2026 · normal 35 · record 66 in 2021
100 days ≤32°F in 2026 · normal 194 · record 228 in 1971

The Full Record

Every day of the year, record and normal high & low with the year each record was set. Type to filter, click a column to sort.
Show me the data — the full daily record
DateRec HighYrNorm HiNorm LoRec LowYr
Jan 163°196442°18°-15°2016
Jan 262°201242°18°-15°1960
Jan 360°200142°19°-11°1937
Jan 462°201242°19°-18°1949
Jan 557°200142°19°-23°1949
Jan 663°201542°19°-23°2017
Jan 762°196142°19°-25°1937
Jan 860°196342°19°-21°1974
Jan 956°196343°19°-21°1977
Jan 1060°198643°19°-16°1974
Jan 1160°198643°20°-20°1968
Jan 1262°199643°20°-19°1968
Jan 1362°199643°20°-21°2013
Jan 1460°202643°20°-15°2013
Jan 1560°196143°20°-7°1947
Jan 1662°196143°20°-10°1949
Jan 1763°196144°20°-13°1952
Jan 1864°196144°20°-16°1952
Jan 1963°195944°20°-10°1952
Jan 2062°196144°20°-32°1937
Jan 2169°196144°20°-30°1937
Jan 2262°196144°20°-24°1962
Jan 2366°196144°20°-21°1962
Jan 2461°195945°20°-17°1989
Jan 2568°201545°20°-28°1949
Jan 2667°201545°20°-31°1949
Jan 2760°198645°20°-25°1949
Jan 2865°202445°20°-9°1949
Jan 2967°197645°20°-25°1977
Jan 3062°202446°21°-15°1957
Jan 3162°200346°21°-16°1950
Feb 162°195346°21°-18°1956
Feb 262°199546°21°-16°1979
Feb 366°199546°21°-9°1979
Feb 467°202647°21°-23°1985
Feb 567°202647°21°-33°1989
Feb 664°195447°21°-26°1989
Feb 767°195447°21°-25°1989
Feb 868°196347°22°-22°1989
Feb 967°195447°22°-14°1989
Feb 1067°195148°22°-7°2025
Feb 1166°201647°22°-1°1982
Feb 1266°199647°22°-10°1959
Feb 1367°197147°22°-21°1949
Feb 1465°199647°22°-30°1949
Feb 1568°199647°22°-8°1949
Feb 1666°199647°22°-10°1938
Feb 1767°201547°22°-17°1938
Feb 1867°201547°22°1°2019
Feb 1968°197747°22°-20°1990
Feb 2070°197747°22°0°2018
Feb 2169°197747°22°-3°1952
Feb 2266°196147°22°-3°2019
Feb 2368°199547°22°1°1974
Feb 2467°195447°22°2°2022
Feb 2569°198647°22°5°1996
Feb 2666°198647°22°-10°2011
Feb 2770°196847°23°-4°1962
Feb 2872°198648°23°4°1955
Feb 2968°198648°23°-7°1971
Mar 168°196848°23°-1°2023
Mar 268°198649°23°-1°2012
Mar 367°196849°23°-4°1976
Mar 468°195050°23°1°1976
Mar 578°194150°24°-5°1976
Mar 676°194151°24°0°1976
Mar 778°194151°24°-6°2002
Mar 871°200552°25°-4°1974
Mar 976°194152°25°-3°1974
Mar 1074°200553°25°6°1951
Mar 1172°200753°25°3°2006
Mar 1271°201554°25°5°1950
Mar 1373°199454°25°11°1977
Mar 1478°199454°26°12°2005
Mar 1575°200755°26°6°2021
Mar 1680°202655°26°9°1966
Mar 1779°202655°26°10°1965
Mar 1879°202655°26°9°1965
Mar 1982°202654°26°12°1955
Mar 2077°200454°26°-1°1938
Mar 2178°196054°26°9°1938
Mar 2279°196055°26°3°1994
Mar 2376°196055°26°5°1994
Mar 2480°196055°26°15°1959
Mar 2579°196055°26°12°1942
Mar 2678°196655°26°8°1996
Mar 2777°196655°26°6°2008
Mar 2880°196655°26°10°1977
Mar 2982°196655°26°11°1996
Mar 3081°196655°27°14°2021
Mar 3182°196655°27°4°1936
Apr 184°196655°27°10°1936
Apr 280°196156°27°12°1976
Apr 378°196056°27°10°2009
Apr 477°195956°27°7°1997
Apr 581°196056°28°11°1997
Apr 680°196656°28°15°1973
Apr 780°201656°28°15°1945
Apr 878°196656°28°13°2001
Apr 977°195157°28°12°2022
Apr 1077°194957°28°16°1970
Apr 1181°196857°28°13°1970
Apr 1282°196257°29°14°1974
Apr 1384°198558°29°12°1974
Apr 1482°198558°29°13°1982
Apr 1583°194759°29°9°1963
Apr 1682°195459°30°13°2026
Apr 1783°195459°30°14°1972
Apr 1881°196259°30°15°1966
Apr 1981°195060°30°12°1961
Apr 2083°200960°30°13°2008
Apr 2181°196960°30°14°1961
Apr 2284°201261°30°14°1968
Apr 2383°196661°31°14°1985
Apr 2484°194662°31°18°1961
Apr 2583°198762°31°15°1960
Apr 2684°198763°31°17°1955
Apr 2785°198763°31°17°1970
Apr 2884°202163°32°17°1976
Apr 2983°198164°32°18°1946
Apr 3085°198164°32°20°1972
May 188°194764°32°17°2008
May 286°194565°32°20°1964
May 390°196665°33°17°1985
May 485°194765°33°18°1985
May 586°194766°33°14°2010
May 689°199266°33°18°1968
May 788°199266°34°19°2022
May 889°196967°34°14°2022
May 990°196967°34°20°1942
May 1090°199767°35°21°1986
May 1188°199767°35°20°1970
May 1288°195967°35°21°1974
May 1385°199668°36°23°1974
May 1487°197668°36°24°1959
May 1589°200668°36°19°1999
May 1691°200968°36°19°1984
May 1792°200869°36°22°1974
May 1893°195469°37°19°1989
May 1990°195469°37°21°1974
May 2094°196769°38°18°1976
May 2191°196769°38°22°1986
May 2291°200170°38°23°1960
May 2390°200170°38°23°1944
May 2490°196671°38°26°1997
May 2592°196671°38°23°1989
May 2690°200372°39°25°1954
May 2793°198372°39°28°1954
May 2895°198373°39°25°1979
May 2993°198673°40°24°1976
May 3095°198673°40°26°2022
May 3194°202174°40°24°1987
Jun 195°202174°40°27°1984
Jun 294°202174°40°24°1976
Jun 395°196974°40°22°2001
Jun 494°201675°40°25°1976
Jun 595°197775°40°26°1980
Jun 693°199675°40°26°2012
Jun 795°195575°40°26°1974
Jun 896°195575°40°28°1982
Jun 997°195575°40°28°1953
Jun 1092°195576°40°25°1972
Jun 1194°197476°40°27°1972
Jun 1293°200276°40°29°1976
Jun 1395°198777°40°27°1952
Jun 1499°196177°40°30°1979
Jun 15101°196178°41°29°1980
Jun 16102°196178°41°25°1973
Jun 1797°198579°41°21°1973
Jun 18100°198580°41°29°1986
Jun 19101°196180°42°30°2024
Jun 20100°196180°42°29°1991
Jun 21100°196181°42°30°1993
Jun 2298°196181°42°28°1993
Jun 2399°199282°43°29°1983
Jun 24102°196183°43°24°1978
Jun 25101°201583°43°27°1974
Jun 26100°202184°44°29°1976
Jun 27105°202184°44°30°1980
Jun 28103°202184°44°28°1963
Jun 29101°201385°44°27°1988
Jun 30101°201485°44°30°1973
Jul 1104°201386°45°28°1976
Jul 2101°196786°45°30°1976
Jul 3101°200786°45°33°1976
Jul 4106°200787°45°30°1986
Jul 599°200787°45°30°1961
Jul 6102°201487°45°32°1955
Jul 7102°202488°45°31°1981
Jul 8102°202488°45°35°1942
Jul 9107°200288°45°32°1983
Jul 10107°200288°45°31°1980
Jul 11103°196188°46°30°1974
Jul 12102°201488°46°33°1974
Jul 13102°193589°46°34°1942
Jul 14101°200589°46°33°1966
Jul 15101°201489°46°32°1993
Jul 16101°195989°46°31°1993
Jul 17100°195990°46°28°1993
Jul 18103°196090°46°31°1983
Jul 19107°196090°46°34°1993
Jul 20103°202490°47°33°1983
Jul 21103°198890°47°34°1965
Jul 22103°198890°47°35°1940
Jul 23100°198891°47°35°1992
Jul 24100°201391°47°35°1987
Jul 25104°202291°47°35°1972
Jul 26102°202291°47°36°1963
Jul 27102°202291°47°32°1965
Jul 28103°196891°47°34°1948
Jul 29104°196691°46°34°1948
Jul 30102°202290°46°31°1975
Jul 31104°198890°46°33°1937
Aug 1100°195490°46°34°1963
Aug 2103°196190°46°31°1963
Aug 3106°196189°46°31°1956
Aug 4104°196189°45°31°1969
Aug 5101°199789°45°32°2002
Aug 6104°198389°45°32°1975
Aug 7103°197289°44°30°2002
Aug 8104°197288°44°32°1985
Aug 9101°196088°44°35°1944
Aug 1099°199688°44°35°1980
Aug 11101°197188°44°33°1985
Aug 12104°199288°44°31°2007
Aug 13100°196788°44°32°1974
Aug 14101°196788°44°32°1987
Aug 15102°196688°44°29°1944
Aug 16101°196788°43°31°1948
Aug 17104°196788°43°27°1978
Aug 18105°196788°43°29°1973
Aug 19104°196788°43°30°1974
Aug 20102°196788°43°32°1959
Aug 21100°196787°43°30°1973
Aug 2298°196187°42°28°1973
Aug 2398°196487°42°26°1960
Aug 2498°201086°42°28°1963
Aug 2596°201786°42°30°1960
Aug 2699°201786°41°30°1992
Aug 2797°201786°41°31°1962
Aug 2897°201785°41°30°1960
Aug 2998°195085°40°28°1943
Aug 3098°195585°40°28°1999
Aug 3198°195585°40°29°1999
Sep 1103°195584°40°24°1973
Sep 2105°195584°40°26°1964
Sep 3106°195584°39°28°1964
Sep 4104°195584°39°27°1971
Sep 5104°195584°39°28°1940
Sep 699°202283°39°25°1996
Sep 795°202083°38°25°2002
Sep 894°202182°38°26°1983
Sep 994°201582°38°25°1986
Sep 1097°201581°38°26°1964
Sep 1195°201580°37°24°1972
Sep 1294°193780°37°24°1972
Sep 1393°193780°37°20°1970
Sep 1495°193780°37°24°1939
Sep 1594°193779°36°21°1936
Sep 1695°198179°36°22°1936
Sep 1794°193778°36°22°1965
Sep 1893°199178°36°19°1947
Sep 1997°195378°35°20°1978
Sep 2091°195378°35°20°1993
Sep 2191°193677°35°20°1945
Sep 2293°198777°35°20°1968
Sep 2392°200977°35°20°1961
Sep 2494°200977°34°21°2000
Sep 2592°200376°34°17°1984
Sep 2696°196376°34°20°1959
Sep 2794°196775°34°23°1945
Sep 2894°196774°33°19°1961
Sep 2993°201074°33°15°1950
Sep 3091°201074°33°17°1950
Oct 191°202073°32°19°1950
Oct 289°196373°32°16°1973
Oct 391°196172°32°16°1989
Oct 490°195871°31°18°1969
Oct 592°196470°31°17°1941
Oct 692°196470°30°19°1941
Oct 789°196470°30°16°1990
Oct 890°196569°30°15°1968
Oct 990°199669°29°13°1985
Oct 1090°199668°29°16°2019
Oct 1188°199168°29°14°2017
Oct 1287°199268°28°15°2003
Oct 1388°201568°28°14°1976
Oct 1493°196168°28°12°1966
Oct 1590°196167°28°15°1992
Oct 1685°195967°28°13°1966
Oct 1784°196366°27°13°1964
Oct 1884°196166°27°16°1984
Oct 1981°198866°27°14°1990
Oct 2086°200365°27°11°1996
Oct 2184°196464°27°8°1996
Oct 2282°193764°27°15°1935
Oct 2385°195963°27°14°1935
Oct 2480°195962°26°11°1997
Oct 2583°196662°26°13°2011
Oct 2680°196861°26°7°2020
Oct 2783°196860°26°8°2019
Oct 2882°196260°26°10°1946
Oct 2982°196259°26°5°2019
Oct 3081°196259°26°0°2002
Oct 3182°196258°26°0°2002
Nov 181°196658°25°-2°2002
Nov 278°194957°25°2°1935
Nov 378°194956°25°6°2002
Nov 479°194956°25°6°1959
Nov 578°194956°25°9°1945
Nov 676°198855°25°6°1936
Nov 776°199155°25°11°1993
Nov 875°201654°25°5°1936
Nov 972°195654°25°4°1936
Nov 1074°201654°25°4°1936
Nov 1171°199653°25°-17°1985
Nov 1273°195653°25°-13°1985
Nov 1375°199552°25°-7°1985
Nov 1471°193652°25°-2°1985
Nov 1574°193651°24°2°2022
Nov 1671°199551°24°-1°1961
Nov 1772°195950°24°2°1994
Nov 1872°193650°24°-6°1994
Nov 1976°193650°23°-3°1977
Nov 2074°193649°23°3°1985
Nov 2172°193648°22°1°1985
Nov 2271°195448°22°5°1966
Nov 2369°199547°22°-4°1993
Nov 2471°195047°22°-5°1993
Nov 2570°195046°22°-6°1985
Nov 2665°195446°21°-4°2015
Nov 2766°195445°21°-6°2015
Nov 2868°198045°20°-5°2015
Nov 2966°194945°20°-4°2004
Nov 3066°202144°20°2°2004
Dec 165°195944°20°-3°2022
Dec 268°195944°20°-1°2022
Dec 371°193944°20°-1°2004
Dec 464°193943°20°-10°2013
Dec 564°193943°20°-9°1972
Dec 663°195943°20°-11°2013
Dec 760°196543°20°-27°2013
Dec 865°195942°20°-27°1972
Dec 965°196242°19°-34°1972
Dec 1066°195842°19°-28°1972
Dec 1169°195842°19°-22°1972
Dec 1261°202542°19°-15°1972
Dec 1362°202541°20°-2°1990
Dec 1462°196241°19°-19°1972
Dec 1559°195841°19°-14°1972
Dec 1660°197941°19°-13°2008
Dec 1767°195841°19°-14°2008
Dec 1865°195841°18°-14°1978
Dec 1960°202440°18°-14°1978
Dec 2060°195940°18°-19°1990
Dec 2157°195040°18°-25°1990
Dec 2261°196040°18°-15°1948
Dec 2361°195040°18°-14°1948
Dec 2459°194740°18°-15°1948
Dec 2560°196040°18°-12°1948
Dec 2662°196041°18°-17°1988
Dec 2761°196041°18°-14°1988
Dec 2858°195641°17°-10°1978
Dec 2962°195641°17°-12°1990
Dec 3063°195641°17°-15°2015
Dec 3159°198042°18°-6°2012
Forecast & records → Alturas station On This Day → national almanac
Data: NOAA/NWS Threaded Extremes (threadex) · normals 1991–2020 · part of Weather Trader