Built 2026-10-19 (19 October 2026)

Colby 1SW Threshold Days by Year (USC00141699)

20 fixed thresholds counted per year at Colby 1SW (USC00141699): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Colby 1SW Thresholds

  • Colby 1SW: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1982 with 23.
  • Colby 1SW: days with 25 mm (0.98 in) or more of precipitation in 70 years, most in 1994 with 9.
  • Colby 1SW: days with a maximum temperature at or above 30 C (86 F) in 67 years, most in 2022 with 111.
  • Colby 1SW: days with a maximum temperature at or above 35 C (95 F) in 67 years, most in 2000 with 58.
  • 20 fixed thresholds have at least one qualifying day at Colby 1SW.
67 years with a qualifying day
Days at or above 30 C (86 F) per year at Colby 1SW Days per year at Colby 1SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 111 in 2022. 0501001501958: 641959: 881960: 731961: 671962: 701963: 1021964: 861965: 541966: 741967: 641968: 731969: 681970: 891971: 751972: 751973: 661974: 641975: 681976: 751977: 671978: 851979: 701980: 801981: 661982: 541983: 851984: 771985: 661986: 691989: 651990: 801991: 821992: 491993: 541994: 891995: 751996: 551997: 731998: 911999: 752000: 1022001: 952002: 932003: 942004: 732005: 892006: 912007: 852008: 692009: 562010: 872011: 922012: 1042013: 932014: 862015: 952016: 932017: 912018: 982019: 792020: 962021: 942022: 1112023: 812024: 1012025: 872026: 1121958196519721979198619952002200920162023
Days per year at Colby 1SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 111 in 2022.
Days at or above 30 C (86 F) per year at Colby 1SW
YearDaysDecade average
19586476
19598876
19607373.1
19616773.1
19627073.1
196310273.1
19648673.1
19655473.1
19667473.1
19676473.1
19687373.1
19696873.1
19708973.4
19717573.4
19727573.4
19736673.4
19746473.4
19756873.4
19767573.4
19776773.4
19788573.4
19797073.4
19808070.3
19816670.3
19825470.3
19838570.3
19847770.3
19856670.3
19866970.3
19896570.3
19908072.3
19918272.3
19924972.3
19935472.3
19948972.3
19957572.3
19965572.3
19977372.3
19989172.3
19997572.3
200010284.7
20019584.7
20029384.7
20039484.7
20047384.7
20058984.7
20069184.7
20078584.7
20086984.7
20095684.7
20108791.8
20119291.8
201210491.8
20139391.8
20148691.8
20159591.8
20169391.8
20179191.8
20189891.8
20197991.8
20209697.4
20219497.4
202211197.4
20238197.4
202410197.4
20258797.4
202611297.4
First to last qualifying date each year at Colby 1SW For each year, a bar from the first to the last day at Colby 1SW meeting 30 C (86 F). 1958: 27 May 1958 to 20 October 19581959: 2 May 1959 to 26 October 19591960: 14 May 1960 to 2 October 19601961: 20 April 1961 to 18 October 19611962: 21 April 1962 to 15 October 19621963: 29 March 1963 to 11 October 19631964: 17 April 1964 to 17 October 19641965: 23 April 1965 to 10 October 19651966: 6 May 1966 to 3 October 19661967: 30 April 1967 to 13 October 19671968: 2 May 1968 to 30 October 19681969: 26 May 1969 to 1 October 19691970: 7 May 1970 to 6 October 19701971: 17 May 1971 to 11 October 19711972: 18 April 1972 to 3 October 19721973: 19 May 1973 to 24 September 19731974: 27 April 1974 to 11 October 19741975: 5 May 1975 to 13 October 19751976: 20 May 1976 to 2 October 19761977: 9 April 1977 to 27 September 19771978: 8 April 1978 to 21 October 19781979: 7 May 1979 to 12 October 19791980: 22 April 1980 to 8 October 19801981: 26 April 1981 to 13 October 19811982: 10 May 1982 to 28 September 19821983: 25 May 1983 to 2 October 19831984: 1 June 1984 to 24 September 19841985: 18 April 1985 to 8 October 19851986: 29 March 1986 to 22 September 19861989: 11 March 1989 to 14 October 19891990: 8 May 1990 to 17 October 19901991: 7 April 1991 to 18 October 19911992: 1 May 1992 to 14 October 19921993: 27 May 1993 to 7 October 19931994: 18 April 1994 to 1 October 19941995: 7 June 1995 to 17 October 19951996: 3 April 1996 to 14 October 19961997: 17 May 1997 to 11 October 19971998: 26 March 1998 to 30 September 19981999: 10 May 1999 to 13 October 19992000: 6 April 2000 to 2 October 20002001: 20 April 2001 to 29 October 20012002: 15 April 2002 to 1 October 20022003: 15 March 2003 to 30 October 20032004: 20 March 2004 to 19 September 20042005: 11 May 2005 to 19 October 20052006: 14 April 2006 to 8 October 20062007: 30 April 2007 to 21 October 20072008: 16 April 2008 to 29 September 20082009: 24 April 2009 to 1 October 20092010: 31 March 2010 to 16 October 20102011: 10 April 2011 to 5 October 20112012: 18 March 2012 to 21 October 20122013: 29 April 2013 to 11 October 20132014: 10 April 2014 to 27 October 20142015: 17 March 2015 to 21 October 20152016: 7 May 2016 to 1 November 20162017: 17 March 2017 to 23 September 20172018: 24 March 2018 to 4 October 20182019: 21 April 2019 to 18 October 20192020: 28 April 2020 to 12 October 20202021: 5 April 2021 to 9 October 20212022: 10 April 2022 to 24 October 20222023: 12 April 2023 to 22 October 20232024: 14 April 2024 to 11 October 20242025: 29 March 2025 to 12 October 20252026: 20 March 2026 to 13 October 202619581967197619851996200520142023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Colby 1SW meeting 30 C (86 F).
First to last qualifying date each year at Colby 1SW
YearFirst dateLast date
19581958-05-271958-10-20
19591959-05-021959-10-26
19601960-05-141960-10-02
19611961-04-201961-10-18
19621962-04-211962-10-15
19631963-03-291963-10-11
19641964-04-171964-10-17
19651965-04-231965-10-10
19661966-05-061966-10-03
19671967-04-301967-10-13
19681968-05-021968-10-30
19691969-05-261969-10-01
19701970-05-071970-10-06
19711971-05-171971-10-11
19721972-04-181972-10-03
19731973-05-191973-09-24
19741974-04-271974-10-11
19751975-05-051975-10-13
19761976-05-201976-10-02
19771977-04-091977-09-27
19781978-04-081978-10-21
19791979-05-071979-10-12
19801980-04-221980-10-08
19811981-04-261981-10-13
19821982-05-101982-09-28
19831983-05-251983-10-02
19841984-06-011984-09-24
19851985-04-181985-10-08
19861986-03-291986-09-22
19891989-03-111989-10-14
19901990-05-081990-10-17
19911991-04-071991-10-18
19921992-05-011992-10-14
19931993-05-271993-10-07
19941994-04-181994-10-01
19951995-06-071995-10-17
19961996-04-031996-10-14
19971997-05-171997-10-11
19981998-03-261998-09-30
19991999-05-101999-10-13
20002000-04-062000-10-02
20012001-04-202001-10-29
20022002-04-152002-10-01
20032003-03-152003-10-30
20042004-03-202004-09-19
20052005-05-112005-10-19
20062006-04-142006-10-08
20072007-04-302007-10-21
20082008-04-162008-09-29
20092009-04-242009-10-01
20102010-03-312010-10-16
20112011-04-102011-10-05
20122012-03-182012-10-21
20132013-04-292013-10-11
20142014-04-102014-10-27
20152015-03-172015-10-21
20162016-05-072016-11-01
20172017-03-172017-09-23
20182018-03-242018-10-04
20192019-04-212019-10-18
20202020-04-282020-10-12
20212021-04-052021-10-09
20222022-04-102022-10-24
20232023-04-122023-10-22
20242024-04-142024-10-11
20252025-03-292025-10-12
20262026-03-202026-10-13

Every Fixed Threshold

Fixed thresholds at Colby 1SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days671112022112
35 C (95 F): Days6758200034
40 C (104 F): Days45919905
45 C (113 F): Days1120121
90 F (32.2 C): Days6781201280
100 F (37.8 C): Days6525201213
110 F (43.3 C): Days2220122
0 C (32 F): Ice days (max676419784
0 C (32 F): Frost days (min67180201386
-10 C (14 F): Days with min6770198918
-20 C (-4 F): Days with min632019893
-30 C (-22 F): Days with min8219892
20 C (68 F): Tropical nights (min6318196414
25 C (77 F): Days with min1120081
10 mm (0.39 in): Days with 10 mm or more rain7023198214
25 mm (0.98 in): Days with 25 mm or more rain70919947
50 mm (1.97 in): Days with 50 mm or more rain36319973
100 mm (3.94 in): Days with 100 mm or more rain2119751
10 cm (3.9 in): Days with 10 cm or more snowfall51719583
25 cm (9.8 in): Days with 25 cm or more snowfall9219971

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

  • Data for Colby 1SW 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-17).