Built 2026-10-19 (19 October 2026)

Chara Threshold Days by Year (RSM00030372)

12 fixed thresholds counted per year at Chara (RSM00030372): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Chara Thresholds

  • Chara: days with a maximum temperature at or below 0 C (32 F) in 82 years, most in 1984 with 193.
  • Chara: days with 10 mm (0.39 in) or more of precipitation in 81 years, most in 2012 with 21.
  • Chara: nights with a minimum temperature at or below 0 C (32 F) in 79 years, most in 1942 with 271.
  • Chara: nights with a minimum temperature at or below -10 C (14 F) in 79 years, most in 1954 with 205.
  • 12 fixed thresholds have at least one qualifying day at Chara.
67 years with a qualifying day
Days at or above 30 C (86 F) per year at Chara Days per year at Chara with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1954. 01020301939: 81940: 31942: 41943: 21944: 11945: 31946: 31947: 71948: 21949: 71950: 11951: 21952: 71953: 31954: 221955: 41956: 51959: 21960: 11961: 31962: 41963: 31964: 31967: 11968: 121969: 31970: 31971: 31972: 11973: 11974: 21975: 11976: 31977: 21979: 21980: 31982: 21985: 21986: 161987: 21990: 11991: 41992: 31994: 21995: 31996: 81997: 21998: 31999: 22000: 32001: 12002: 62003: 52004: 62005: 52006: 32007: 42008: 112010: 62011: 52014: 62015: 82017: 122018: 12019: 62022: 52025: 21939194719541963197219801992200020072018
Days per year at Chara with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 22 in 1954.
Days at or above 30 C (86 F) per year at Chara
YearDaysDecade average
193988
194033.6
194243.6
194323.6
194413.6
194533.6
194633.6
194773.6
194823.6
194973.6
195015.8
195125.8
195275.8
195335.8
1954225.8
195545.8
195655.8
195925.8
196013.8
196133.8
196243.8
196333.8
196433.8
196713.8
1968123.8
196933.8
197032
197132
197212
197312
197422
197512
197632
197722
197922
198035
198225
198525
1986165
198725
199013.1
199143.1
199233.1
199423.1
199533.1
199683.1
199723.1
199833.1
199923.1
200034.9
200114.9
200264.9
200354.9
200464.9
200554.9
200634.9
200744.9
2008114.9
201066.3
201156.3
201466.3
201586.3
2017126.3
201816.3
201966.3
202253.5
202523.5
First to last qualifying date each year at Chara For each year, a bar from the first to the last day at Chara meeting 30 C (86 F). 1939: 29 June 1939 to 17 August 19391940: 23 June 1940 to 8 July 19401942: 30 June 1942 to 10 July 19421943: 15 July 1943 to 16 July 19431944: 2 July 1944 to 2 July 19441945: 18 July 1945 to 20 July 19451946: 25 June 1946 to 16 July 19461947: 26 June 1947 to 16 July 19471948: 5 July 1948 to 13 July 19481949: 5 July 1949 to 27 July 19491950: 10 July 1950 to 10 July 19501951: 21 July 1951 to 22 July 19511952: 5 July 1952 to 4 August 19521953: 26 June 1953 to 28 June 19531954: 25 June 1954 to 6 August 19541955: 12 July 1955 to 20 August 19551956: 17 July 1956 to 21 July 19561959: 7 July 1959 to 8 July 19591960: 28 July 1960 to 28 July 19601961: 27 July 1961 to 30 July 19611962: 26 June 1962 to 26 July 19621963: 9 July 1963 to 24 July 19631964: 27 July 1964 to 29 July 19641967: 29 July 1967 to 29 July 19671968: 23 June 1968 to 14 August 19681969: 18 June 1969 to 5 August 19691970: 25 June 1970 to 9 July 19701971: 27 June 1971 to 15 July 19711972: 30 July 1972 to 30 July 19721973: 4 June 1973 to 4 June 19731974: 14 July 1974 to 15 July 19741975: 6 August 1975 to 6 August 19751976: 12 July 1976 to 14 July 19761977: 12 July 1977 to 13 July 19771979: 3 July 1979 to 4 July 19791980: 10 July 1980 to 14 July 19801982: 27 July 1982 to 28 July 19821985: 1 July 1985 to 2 July 19851986: 18 June 1986 to 7 August 19861987: 19 June 1987 to 14 August 19871990: 18 July 1990 to 18 July 19901991: 20 June 1991 to 6 July 19911992: 3 July 1992 to 12 July 19921994: 15 July 1994 to 16 July 19941995: 9 June 1995 to 29 June 19951996: 6 July 1996 to 13 August 19961997: 15 July 1997 to 16 July 19971998: 4 July 1998 to 14 July 19981999: 19 June 1999 to 21 July 19992000: 10 June 2000 to 11 August 20002001: 31 July 2001 to 31 July 20012002: 4 July 2002 to 14 August 20022003: 18 July 2003 to 24 July 20032004: 20 June 2004 to 13 July 20042005: 11 July 2005 to 24 August 20052006: 24 June 2006 to 26 July 20062007: 6 June 2007 to 5 August 20072008: 11 June 2008 to 23 July 20082010: 22 June 2010 to 22 July 20102011: 25 June 2011 to 6 August 20112014: 21 June 2014 to 18 July 20142015: 19 June 2015 to 17 July 20152017: 12 June 2017 to 14 August 20172018: 15 August 2018 to 15 August 20182019: 11 June 2019 to 8 August 20192022: 29 June 2022 to 25 July 20222025: 25 June 2025 to 26 June 202519391949196019711982199620052018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Chara meeting 30 C (86 F).
First to last qualifying date each year at Chara
YearFirst dateLast date
19391939-06-291939-08-17
19401940-06-231940-07-08
19421942-06-301942-07-10
19431943-07-151943-07-16
19441944-07-021944-07-02
19451945-07-181945-07-20
19461946-06-251946-07-16
19471947-06-261947-07-16
19481948-07-051948-07-13
19491949-07-051949-07-27
19501950-07-101950-07-10
19511951-07-211951-07-22
19521952-07-051952-08-04
19531953-06-261953-06-28
19541954-06-251954-08-06
19551955-07-121955-08-20
19561956-07-171956-07-21
19591959-07-071959-07-08
19601960-07-281960-07-28
19611961-07-271961-07-30
19621962-06-261962-07-26
19631963-07-091963-07-24
19641964-07-271964-07-29
19671967-07-291967-07-29
19681968-06-231968-08-14
19691969-06-181969-08-05
19701970-06-251970-07-09
19711971-06-271971-07-15
19721972-07-301972-07-30
19731973-06-041973-06-04
19741974-07-141974-07-15
19751975-08-061975-08-06
19761976-07-121976-07-14
19771977-07-121977-07-13
19791979-07-031979-07-04
19801980-07-101980-07-14
19821982-07-271982-07-28
19851985-07-011985-07-02
19861986-06-181986-08-07
19871987-06-191987-08-14
19901990-07-181990-07-18
19911991-06-201991-07-06
19921992-07-031992-07-12
19941994-07-151994-07-16
19951995-06-091995-06-29
19961996-07-061996-08-13
19971997-07-151997-07-16
19981998-07-041998-07-14
19991999-06-191999-07-21
20002000-06-102000-08-11
20012001-07-312001-07-31
20022002-07-042002-08-14
20032003-07-182003-07-24
20042004-06-202004-07-13
20052005-07-112005-08-24
20062006-06-242006-07-26
20072007-06-062007-08-05
20082008-06-112008-07-23
20102010-06-222010-07-22
20112011-06-252011-08-06
20142014-06-212014-07-18
20152015-06-192015-07-17
20172017-06-122017-08-14
20182018-08-152018-08-15
20192019-06-112019-08-08
20222022-06-292022-07-25
20252025-06-252025-06-26

Every Fixed Threshold

Fixed thresholds at Chara
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days672219542
35 C (95 F): Days1119541
90 F (32.2 C): Days26819862
0 C (32 F): Ice days (max82193198480
0 C (32 F): Frost days (min79271194296
-10 C (14 F): Days with min79205195468
-20 C (-4 F): Days with min79174198456
-30 C (-22 F): Days with min79131195244
-40 C (-40 F): Days with min7968196916
10 mm (0.39 in): Days with 10 mm or more rain812120129
25 mm (0.98 in): Days with 25 mm or more rain66519763
50 mm (1.97 in): Days with 50 mm or more rain4219831

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for Chara 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 (2025-12-31).