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Almanac · Hilo, HI · Climate Almanac
📖 Climate Almanac

Hilo, HI

19.719°N, 155.049°W · station ITOthr · 1949–2026 · 78 years of record

The Almanac Ribbon

Every day of the year at Hilo: the record high and record low ever set (outer lines), the everyday normal range (shaded band), and the full record envelope behind it.
6080100JanFebMarAprMayJunJulAugSepOctNovDeccoldestsince.com · hottestsince.com
Record high Record low Normal high–low band (1991–2020) hottest ever 94°F · coldest ever 53°F

Records by Month

MonthRecord highRecord low
Jan92°Jan 28, 199754°Jan 23, 1969
Feb92°Feb 20, 196853°Feb 21, 1962
Mar93°Mar 23, 197254°Mar 18, 1971
Apr89°Apr 2, 196358°Apr 5, 2008
May94°May 20, 196658°May 23, 2024
Jun90°Jun 24, 196961°Jun 26, 1956
Jul93°Jul 26, 202062°Jul 11, 1970
Aug93°Aug 15, 195063°Aug 1, 1950
Sep93°Sep 26, 201461°Sep 30, 1970
Oct91°Oct 19, 196162°Oct 26, 1949
Nov94°Nov 28, 201358°Nov 15, 1949
Dec93°Dec 14, 198055°Dec 23, 1977
All-time94°May 20, 196653°Feb 21, 1962

Longest-Standing Records

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

Oldest-standing record highs

DateRecordSetStanding
Jan 1189°195076yrs
Feb 885°195076yrs
Aug 1493°195076yrs
Aug 2088°195076yrs
Mar 2688°195175yrs
Jun 2888°195175yrs
Jun 2988°195175yrs
Sep 2092°195175yrs
Apr 2787°195472yrs
Mar 2186°195571yrs
Nov 3088°195670yrs
Apr 1486°195769yrs

Oldest-standing record lows

DateRecordSetStanding
Sep 3063°194977yrs
Oct 965°194977yrs
Oct 1463°194977yrs
Oct 2364°194977yrs
Oct 2562°194977yrs
Nov 1062°194977yrs
Nov 1162°194977yrs
Nov 1360°194977yrs
Nov 1458°194977yrs
Nov 1659°194977yrs
Nov 1860°194977yrs
Nov 1960°194977yrs

All-Time Extremes

Hottest ever

94°F
1966-05-20

Coldest ever

53°F
1962-02-21

Longest heat streak

5 days
≥ 90°F · ended 2015-09-10

The Warming Trend

Hilo's annual mean temperature, each year a stripe — blue below the 1991–2020 average, red above.
1950: 73.0°F (-1.5 vs 1991–2020)1951: 73.1°F (-1.4 vs 1991–2020)1952: 72.1°F (-2.4 vs 1991–2020)1953: 72.5°F (-2.0 vs 1991–2020)1954: 73.0°F (-1.5 vs 1991–2020)1955: 71.4°F (-3.1 vs 1991–2020)1956: 72.7°F (-1.8 vs 1991–2020)1957: 73.1°F (-1.4 vs 1991–2020)1958: 73.0°F (-1.5 vs 1991–2020)1959: 73.4°F (-1.1 vs 1991–2020)1960: 73.0°F (-1.5 vs 1991–2020)1961: 73.6°F (-0.9 vs 1991–2020)1962: 73.0°F (-1.5 vs 1991–2020)1963: 73.9°F (-0.6 vs 1991–2020)1964: 73.1°F (-1.4 vs 1991–2020)1965: 73.1°F (-1.4 vs 1991–2020)1966: 74.3°F (-0.2 vs 1991–2020)1967: 75.5°F (+1.0 vs 1991–2020)1968: 75.4°F (+0.9 vs 1991–2020)1969: 73.8°F (-0.7 vs 1991–2020)1970: 73.3°F (-1.2 vs 1991–2020)1971: 73.4°F (-1.1 vs 1991–2020)1972: 73.7°F (-0.8 vs 1991–2020)1973: 74.1°F (-0.4 vs 1991–2020)1974: 74.6°F (+0.1 vs 1991–2020)1975: 73.3°F (-1.2 vs 1991–2020)1976: 73.7°F (-0.8 vs 1991–2020)1977: 75.4°F (+0.9 vs 1991–2020)1978: 74.6°F (+0.1 vs 1991–2020)1979: 73.5°F (-1.0 vs 1991–2020)1980: 74.8°F (+0.3 vs 1991–2020)1981: 74.1°F (-0.4 vs 1991–2020)1982: 73.8°F (-0.7 vs 1991–2020)1983: 73.3°F (-1.2 vs 1991–2020)1984: 73.9°F (-0.6 vs 1991–2020)1985: 72.6°F (-1.9 vs 1991–2020)1986: 75.3°F (+0.8 vs 1991–2020)1987: 74.3°F (-0.2 vs 1991–2020)1988: 74.6°F (+0.1 vs 1991–2020)1989: 73.3°F (-1.2 vs 1991–2020)1990: 74.2°F (-0.3 vs 1991–2020)1991: 74.3°F (-0.2 vs 1991–2020)1992: 74.7°F (+0.2 vs 1991–2020)1993: 73.8°F (-0.7 vs 1991–2020)1994: 74.8°F (+0.3 vs 1991–2020)1995: 75.6°F (+1.1 vs 1991–2020)1996: 75.2°F (+0.7 vs 1991–2020)1997: 75.1°F (+0.6 vs 1991–2020)1998: 73.0°F (-1.5 vs 1991–2020)1999: 72.2°F (-2.3 vs 1991–2020)2000: 73.3°F (-1.2 vs 1991–2020)2001: 73.4°F (-1.1 vs 1991–2020)2002: 74.1°F (-0.4 vs 1991–2020)2003: 74.8°F (+0.3 vs 1991–2020)2004: 75.3°F (+0.8 vs 1991–2020)2005: 74.7°F (+0.2 vs 1991–2020)2006: 73.9°F (-0.6 vs 1991–2020)2007: 74.2°F (-0.3 vs 1991–2020)2008: 73.7°F (-0.8 vs 1991–2020)2009: 73.0°F (-1.5 vs 1991–2020)2010: 73.8°F (-0.7 vs 1991–2020)2011: 73.8°F (-0.7 vs 1991–2020)2012: 73.4°F (-1.1 vs 1991–2020)2013: 74.5°F (+0.0 vs 1991–2020)2014: 74.8°F (+0.3 vs 1991–2020)2015: 76.2°F (+1.7 vs 1991–2020)2016: 75.6°F (+1.1 vs 1991–2020)2017: 74.6°F (+0.1 vs 1991–2020)2018: 75.7°F (+1.2 vs 1991–2020)2019: 76.0°F (+1.5 vs 1991–2020)2020: 76.8°F (+2.3 vs 1991–2020)2021: 75.1°F (+0.6 vs 1991–2020)2022: 75.1°F (+0.6 vs 1991–2020)2023: 75.0°F (+0.5 vs 1991–2020)2024: 74.8°F (+0.3 vs 1991–2020)2025: 75.2°F (+0.7 vs 1991–2020)19502025annual mean temperature · warmer ▲ redder

Days Above / Below the Mark

0 days ≥90°F in 2026 · normal 1 · record 12 in 2015
0 days ≤32°F in 2026 · normal 0 · record 0 in 1949

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 185°196980°64°57°1969
Jan 286°200180°64°58°1960
Jan 386°195880°64°58°1960
Jan 485°199680°64°59°2015
Jan 586°196680°64°58°1972
Jan 686°196280°64°58°1985
Jan 791°197980°64°58°1980
Jan 891°197980°64°58°1971
Jan 991°197980°64°57°1972
Jan 1087°201680°64°54°1995
Jan 1189°195080°64°56°1995
Jan 1288°201880°64°59°1954
Jan 1388°197080°64°56°1978
Jan 1487°198080°64°57°1978
Jan 1588°197780°64°56°1987
Jan 1689°197780°64°57°1985
Jan 1789°195980°64°59°2008
Jan 1888°197480°64°58°2009
Jan 1988°197480°64°54°1980
Jan 2087°197480°64°57°1969
Jan 2187°196880°64°54°1980
Jan 2286°199880°64°58°2013
Jan 2387°198380°64°54°1969
Jan 2489°196780°64°55°1961
Jan 2588°201680°64°57°1958
Jan 2686°197780°64°57°1980
Jan 2791°199780°64°58°2007
Jan 2892°199780°64°57°2007
Jan 2987°199580°64°56°1980
Jan 3087°198080°64°58°1994
Jan 3189°201880°64°57°1994
Feb 188°197780°64°55°1965
Feb 288°197580°64°57°1972
Feb 386°196180°64°56°1987
Feb 491°199180°64°57°1958
Feb 587°196080°64°57°1958
Feb 686°196080°64°57°1978
Feb 790°196880°64°56°1954
Feb 885°195080°64°57°1954
Feb 987°198680°64°56°1951
Feb 1086°199579°64°57°1953
Feb 1188°198179°64°57°1990
Feb 1286°196879°64°56°1995
Feb 1388°198179°64°54°1995
Feb 1489°198179°64°56°1954
Feb 1587°198379°64°57°1957
Feb 1690°198679°64°57°1958
Feb 1789°199579°64°57°1957
Feb 1887°196879°64°58°1953
Feb 1988°201579°64°58°1955
Feb 2092°196879°64°58°1953
Feb 2187°196380°64°53°1962
Feb 2287°196379°64°57°1962
Feb 2386°196880°64°55°1960
Feb 2489°199280°64°57°1965
Feb 2591°196879°64°58°1982
Feb 2686°196380°64°58°1991
Feb 2789°201680°64°60°1965
Feb 2888°199580°64°57°1965
Feb 2989°196880°65°59°1965
Mar 188°196880°65°57°1983
Mar 287°196880°65°54°1983
Mar 386°201780°65°58°1971
Mar 489°197880°65°58°1979
Mar 587°197880°65°60°1954
Mar 688°201680°65°59°1971
Mar 787°198680°65°60°1966
Mar 890°201680°65°60°1971
Mar 987°198680°65°59°1971
Mar 1086°198380°65°57°1972
Mar 1189°199580°65°57°1985
Mar 1286°200780°65°56°1954
Mar 1388°202380°65°56°2009
Mar 1487°201879°65°57°1958
Mar 1587°202379°65°56°1958
Mar 1688°196779°65°57°1965
Mar 1785°196879°65°54°1971
Mar 1887°202380°65°56°1971
Mar 1989°202679°65°57°1971
Mar 2087°197479°65°60°1981
Mar 2186°195579°65°59°1957
Mar 2288°197279°65°60°1996
Mar 2393°197279°65°58°1965
Mar 2487°197280°65°59°1979
Mar 2587°200380°65°56°1955
Mar 2688°195180°66°59°1960
Mar 2790°201880°66°60°1962
Mar 2886°200280°66°61°1970
Mar 2986°196380°66°60°2012
Mar 3086°196380°66°58°1971
Mar 3188°197480°66°60°1953
Apr 189°196380°66°58°2013
Apr 287°197480°66°60°1953
Apr 387°197780°66°61°1951
Apr 486°196280°66°59°1966
Apr 587°201680°66°58°2008
Apr 684°196880°66°59°1985
Apr 785°199580°66°61°1957
Apr 885°196380°66°62°1952
Apr 986°196380°66°61°1954
Apr 1085°202680°66°60°1957
Apr 1187°197980°66°60°1964
Apr 1285°197980°66°61°1954
Apr 1387°201380°66°62°1951
Apr 1486°195780°66°61°1962
Apr 1587°197980°66°61°1952
Apr 1687°197780°66°59°1956
Apr 1787°198680°66°61°1970
Apr 1888°197880°66°63°1950
Apr 1989°197880°66°62°1952
Apr 2086°196780°66°59°1966
Apr 2186°201380°66°60°1966
Apr 2286°199780°66°61°1991
Apr 2387°202380°66°62°1970
Apr 2485°197780°66°62°1952
Apr 2586°196281°66°59°2009
Apr 2686°196781°66°61°1955
Apr 2787°195481°66°61°1970
Apr 2889°201781°67°60°1972
Apr 2986°201081°67°62°1985
Apr 3085°200581°67°62°2003
May 185°198081°67°61°1979
May 285°197781°67°61°1977
May 386°201981°67°61°2006
May 487°199581°67°60°1971
May 586°199581°67°61°1966
May 686°198081°67°61°1956
May 787°196681°67°62°1954
May 889°196681°67°59°1992
May 985°196581°67°59°1971
May 1087°201381°67°60°2006
May 1187°200481°67°62°1971
May 1286°196582°67°62°2006
May 1387°196582°67°62°1957
May 1488°202082°67°62°2012
May 1587°202082°67°63°1985
May 1687°196782°67°61°1987
May 1791°196782°67°61°1985
May 1887°196782°67°63°1952
May 1994°196682°67°62°1952
May 2088°196682°67°59°1952
May 2188°199282°67°63°1956
May 2288°196682°67°62°1975
May 2386°196682°67°58°2024
May 2491°200382°68°60°2003
May 2588°200382°68°60°2003
May 2687°199283°68°61°2003
May 2788°199283°68°63°1972
May 2887°198083°68°62°1972
May 2989°199283°68°63°1957
May 3088°200783°68°62°1964
May 3189°196283°68°63°1951
Jun 188°199283°68°64°1979
Jun 287°200783°68°63°1972
Jun 388°199283°68°63°1971
Jun 487°199283°68°63°1976
Jun 588°200783°68°62°1979
Jun 688°196883°68°64°1966
Jun 787°195983°68°63°1952
Jun 887°202083°68°64°1953
Jun 987°198683°68°64°1974
Jun 1087°198683°68°64°2021
Jun 1188°198683°68°64°1963
Jun 1287°196983°68°64°1976
Jun 1387°196983°68°64°1963
Jun 1487°196983°68°63°2021
Jun 1587°196983°68°63°1999
Jun 1687°201983°68°64°1958
Jun 1786°196783°68°64°1955
Jun 1887°196783°68°63°1959
Jun 1987°196983°68°64°1960
Jun 2088°196983°69°64°1955
Jun 2187°198083°69°65°1955
Jun 2288°198083°69°64°1962
Jun 2390°196983°69°62°1965
Jun 2488°201983°69°63°1964
Jun 2587°199583°69°62°1970
Jun 2687°196983°69°61°1956
Jun 2788°201583°69°64°1952
Jun 2888°195183°69°64°1999
Jun 2988°195183°69°64°1970
Jun 3088°198083°69°64°1962
Jul 189°197783°69°64°1955
Jul 287°197183°69°64°1956
Jul 388°201583°69°64°1956
Jul 488°201984°69°64°1952
Jul 588°197784°69°63°1955
Jul 688°200884°69°64°1957
Jul 788°198084°69°64°1962
Jul 889°198084°69°63°1956
Jul 987°196884°69°64°1975
Jul 1087°196884°70°62°1970
Jul 1190°201584°70°64°1955
Jul 1288°201784°70°64°1955
Jul 1389°198084°70°63°1950
Jul 1489°199584°70°64°1950
Jul 1589°198684°70°64°1955
Jul 1689°198684°70°63°1970
Jul 1791°200484°70°64°1963
Jul 1888°198084°70°65°1961
Jul 1987°198084°70°64°1955
Jul 2088°197484°70°63°1955
Jul 2188°198684°70°65°1955
Jul 2287°198284°70°64°1959
Jul 2390°200484°70°63°1955
Jul 2491°200484°70°63°1955
Jul 2589°200384°70°64°1971
Jul 2693°202084°70°64°1955
Jul 2788°200484°70°63°1999
Jul 2889°198684°70°63°1970
Jul 2989°199484°70°63°1956
Jul 3088°201584°70°64°1972
Jul 3187°199384°70°63°1950
Aug 188°195884°70°64°1979
Aug 290°198884°70°66°1950
Aug 389°198684°70°65°1955
Aug 488°197384°70°65°1965
Aug 588°195984°70°65°1962
Aug 688°198684°70°66°1955
Aug 788°197184°70°64°1955
Aug 888°197184°70°64°1970
Aug 988°201584°70°64°1970
Aug 1088°201584°70°64°1972
Aug 1188°196084°70°64°1962
Aug 1288°197184°70°64°1980
Aug 1391°197184°70°64°1973
Aug 1493°195084°70°65°2001
Aug 1589°197784°70°65°1964
Aug 1690°201584°70°65°1955
Aug 1789°197684°70°65°1955
Aug 1889°201984°70°65°1950
Aug 1989°196384°70°64°1983
Aug 2088°195084°70°65°1960
Aug 2190°201584°70°65°1962
Aug 2288°197784°70°64°1952
Aug 2388°199684°70°64°1956
Aug 2489°199684°70°64°1971
Aug 2588°199684°70°64°1951
Aug 2689°201584°70°64°1972
Aug 2790°201584°70°64°1960
Aug 2890°201584°70°64°1950
Aug 2989°201584°70°65°1993
Aug 3089°201584°70°64°1970
Aug 3192°201584°70°65°1958
Sep 193°201584°70°64°1951
Sep 290°198784°70°64°1956
Sep 389°201584°70°64°1960
Sep 489°201585°70°64°1955
Sep 591°201585°70°63°1955
Sep 690°201585°70°64°1970
Sep 791°201585°70°62°1955
Sep 892°201585°70°63°1955
Sep 990°201585°70°62°1955
Sep 1090°199285°70°64°1955
Sep 1191°199285°70°64°1955
Sep 1288°197184°70°65°1951
Sep 1390°197184°70°64°1970
Sep 1490°201984°70°63°2009
Sep 1590°197284°70°63°1961
Sep 1692°201984°70°63°1955
Sep 1789°197484°70°62°1955
Sep 1890°201484°70°64°1955
Sep 1990°198184°70°64°1950
Sep 2092°195184°70°62°1959
Sep 2190°201984°70°65°1953
Sep 2289°199584°69°63°2006
Sep 2389°199584°69°64°1955
Sep 2490°201484°69°64°1952
Sep 2593°201484°69°64°1958
Sep 2692°201984°69°64°1950
Sep 2790°201984°69°65°1952
Sep 2889°197484°69°64°1955
Sep 2988°199684°69°61°1970
Sep 3090°200384°69°63°1949
Oct 190°196084°69°64°1969
Oct 291°197684°69°62°1959
Oct 390°196784°69°64°1961
Oct 488°196784°69°63°1999
Oct 589°200384°69°63°1958
Oct 689°197984°69°64°1955
Oct 791°197984°69°63°1958
Oct 890°201984°69°63°1953
Oct 989°202284°69°65°1949
Oct 1090°197784°69°62°1955
Oct 1188°196584°69°64°1955
Oct 1291°196584°69°63°2007
Oct 1391°197284°69°63°1955
Oct 1489°200684°69°63°1949
Oct 1589°198884°69°63°1962
Oct 1689°201584°69°63°1956
Oct 1790°196284°69°62°1951
Oct 1891°196184°69°62°1999
Oct 1988°201584°69°64°1969
Oct 2088°199283°69°63°1950
Oct 2189°195883°69°63°2012
Oct 2290°202083°69°64°1980
Oct 2389°202083°69°64°1949
Oct 2488°202083°69°62°1980
Oct 2589°202083°69°62°1949
Oct 2686°195783°69°64°1963
Oct 2787°200383°68°62°1962
Oct 2888°196783°69°62°1970
Oct 2988°201583°69°62°1954
Oct 3089°201583°68°62°1954
Oct 3188°201583°68°62°1955
Nov 190°201983°68°62°1980
Nov 288°201582°68°61°1970
Nov 387°201582°68°61°1980
Nov 488°202082°68°63°1975
Nov 588°202082°68°63°1977
Nov 688°199782°68°61°1979
Nov 792°199682°68°61°1970
Nov 889°201982°68°62°1970
Nov 987°196582°68°62°1993
Nov 1088°201982°68°62°1949
Nov 1187°201982°68°62°1949
Nov 1288°201982°68°62°1969
Nov 1388°201982°67°60°1949
Nov 1489°201981°67°58°1949
Nov 1587°197081°67°59°1974
Nov 1688°199681°67°59°1949
Nov 1790°198581°67°61°2017
Nov 1887°198881°67°60°1949
Nov 1986°199181°67°60°1949
Nov 2087°199281°67°60°1949
Nov 2187°201581°67°60°2003
Nov 2287°201581°67°59°1956
Nov 2386°197781°67°62°1949
Nov 2487°197781°67°60°1993
Nov 2586°197781°67°61°1956
Nov 2688°201381°67°59°1985
Nov 2794°201381°67°58°1985
Nov 2888°197880°67°61°2012
Nov 2988°197780°67°61°1985
Nov 3088°195680°66°61°1974
Dec 185°195780°66°59°1972
Dec 287°196680°66°59°1972
Dec 388°196680°66°59°1954
Dec 487°198880°66°60°1956
Dec 591°197780°66°60°1962
Dec 688°198880°66°58°1958
Dec 787°199580°66°57°1958
Dec 888°197780°66°60°1962
Dec 987°196880°66°58°1960
Dec 1088°197380°66°58°1989
Dec 1186°197780°66°60°1953
Dec 1287°198080°66°60°1953
Dec 1387°202580°66°61°1952
Dec 1493°198080°66°58°1989
Dec 1586°196780°66°57°2017
Dec 1687°196880°65°59°1955
Dec 1787°202580°65°57°1975
Dec 1886°197280°65°57°1969
Dec 1985°202580°65°59°1954
Dec 2087°196480°65°57°1969
Dec 2190°196480°65°59°1949
Dec 2289°198080°65°55°1977
Dec 2387°196480°65°56°1978
Dec 2487°198080°65°58°1958
Dec 2587°198080°65°60°1959
Dec 2686°199680°65°60°1951
Dec 2787°199680°65°59°1962
Dec 2886°199580°65°59°1999
Dec 2986°199580°65°59°1999
Dec 3086°197380°65°57°1958
Dec 3185°199680°65°61°1972
Forecast & records → Hilo station On This Day → national almanac
Data: NOAA/NWS Threaded Extremes (threadex) · normals 1991–2020 · part of Weather Trader