Built 2026-10-19 (19 October 2026)

Stamford 5 N Threshold Days by Year (USC00067970)

17 fixed thresholds counted per year at Stamford 5 N (USC00067970): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Stamford 5 N Thresholds

  • Stamford 5 N: days with a maximum temperature at or above 30 C (86 F) in 56 years, most in 1983 with 64.
  • Stamford 5 N: days with a maximum temperature at or below 0 C (32 F) in 56 years, most in 1958 with 34.
  • Stamford 5 N: nights with a minimum temperature at or below 0 C (32 F) in 56 years, most in 1962 with 154.
  • Stamford 5 N: nights with a minimum temperature at or below -10 C (14 F) in 56 years, most in 2015 with 44.
  • 17 fixed thresholds have at least one qualifying day at Stamford 5 N.
56 years with a qualifying day
Days at or above 30 C (86 F) per year at Stamford 5 N Days per year at Stamford 5 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 64 in 1983. 0204060801956: 231957: 331958: 131959: 401960: 111961: 331962: 201963: 201964: 411965: 281966: 391967: 141968: 271969: 211970: 261971: 231972: 181973: 461974: 301975: 281976: 291977: 451978: 341979: 381980: 541981: 381982: 271983: 641984: 341985: 281986: 321987: 511988: 491989: 371990: 201991: 531992: 151993: 521994: 421995: 461996: 311997: 371998: 501999: 552000: 372001: 512002: 572003: 332004: 332013: 382014: 502015: 582016: 482017: 362019: 362020: 241956196219681974198019861992199820042019
Days per year at Stamford 5 N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 64 in 1983.
Days at or above 30 C (86 F) per year at Stamford 5 N
YearDaysDecade average
19562327.3
19573327.3
19581327.3
19594027.3
19601125.4
19613325.4
19622025.4
19632025.4
19644125.4
19652825.4
19663925.4
19671425.4
19682725.4
19692125.4
19702631.7
19712331.7
19721831.7
19734631.7
19743031.7
19752831.7
19762931.7
19774531.7
19783431.7
19793831.7
19805441.4
19813841.4
19822741.4
19836441.4
19843441.4
19852841.4
19863241.4
19875141.4
19884941.4
19893741.4
19902040.1
19915340.1
19921540.1
19935240.1
19944240.1
19954640.1
19963140.1
19973740.1
19985040.1
19995540.1
20003742.2
20015142.2
20025742.2
20033342.2
20043342.2
20133844.3
20145044.3
20155844.3
20164844.3
20173644.3
20193644.3
20202424
First to last qualifying date each year at Stamford 5 N For each year, a bar from the first to the last day at Stamford 5 N meeting 30 C (86 F). 1956: 13 May 1956 to 28 August 19561957: 9 May 1957 to 14 September 19571958: 1 July 1958 to 26 September 19581959: 12 May 1959 to 24 September 19591960: 27 June 1960 to 30 August 19601961: 2 June 1961 to 23 September 19611962: 22 April 1962 to 21 August 19621963: 24 June 1963 to 4 August 19631964: 18 April 1964 to 12 September 19641965: 4 May 1965 to 11 September 19651966: 5 June 1966 to 2 September 19661967: 2 June 1967 to 18 August 19671968: 6 June 1968 to 22 September 19681969: 29 May 1969 to 1 September 19691970: 10 May 1970 to 25 September 19701971: 7 June 1971 to 10 September 19711972: 2 July 1972 to 27 August 19721973: 5 June 1973 to 5 September 19731974: 29 April 1974 to 14 September 19741975: 20 May 1975 to 22 August 19751976: 17 April 1976 to 14 September 19761977: 12 April 1977 to 3 September 19771978: 20 May 1978 to 29 August 19781979: 9 May 1979 to 22 October 19791980: 23 May 1980 to 23 September 19801981: 24 May 1981 to 14 September 19811982: 16 June 1982 to 12 September 19821983: 11 June 1983 to 21 September 19831984: 5 June 1984 to 17 August 19841985: 11 May 1985 to 7 September 19851986: 5 May 1986 to 30 September 19861987: 10 May 1987 to 21 August 19871988: 29 May 1988 to 17 August 19881989: 18 May 1989 to 11 September 19891990: 27 April 1990 to 27 August 19901991: 7 April 1991 to 17 September 19911992: 21 May 1992 to 27 August 19921993: 9 May 1993 to 15 September 19931994: 23 May 1994 to 28 August 19941995: 31 May 1995 to 5 September 19951996: 19 May 1996 to 10 September 19961997: 10 June 1997 to 17 August 19971998: 16 May 1998 to 28 September 19981999: 29 May 1999 to 3 September 19992000: 5 May 2000 to 3 September 20002001: 22 April 2001 to 13 September 20012002: 16 April 2002 to 10 September 20022003: 16 April 2003 to 30 August 20032004: 11 May 2004 to 4 September 20042013: 21 May 2013 to 12 September 20132014: 12 May 2014 to 28 September 20142015: 8 May 2015 to 18 September 20152016: 25 May 2016 to 22 September 20162017: 16 April 2017 to 27 September 20172019: 26 May 2019 to 2 October 20192020: 5 June 2020 to 27 August 202019561963197019771984199119982013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Stamford 5 N meeting 30 C (86 F).
First to last qualifying date each year at Stamford 5 N
YearFirst dateLast date
19561956-05-131956-08-28
19571957-05-091957-09-14
19581958-07-011958-09-26
19591959-05-121959-09-24
19601960-06-271960-08-30
19611961-06-021961-09-23
19621962-04-221962-08-21
19631963-06-241963-08-04
19641964-04-181964-09-12
19651965-05-041965-09-11
19661966-06-051966-09-02
19671967-06-021967-08-18
19681968-06-061968-09-22
19691969-05-291969-09-01
19701970-05-101970-09-25
19711971-06-071971-09-10
19721972-07-021972-08-27
19731973-06-051973-09-05
19741974-04-291974-09-14
19751975-05-201975-08-22
19761976-04-171976-09-14
19771977-04-121977-09-03
19781978-05-201978-08-29
19791979-05-091979-10-22
19801980-05-231980-09-23
19811981-05-241981-09-14
19821982-06-161982-09-12
19831983-06-111983-09-21
19841984-06-051984-08-17
19851985-05-111985-09-07
19861986-05-051986-09-30
19871987-05-101987-08-21
19881988-05-291988-08-17
19891989-05-181989-09-11
19901990-04-271990-08-27
19911991-04-071991-09-17
19921992-05-211992-08-27
19931993-05-091993-09-15
19941994-05-231994-08-28
19951995-05-311995-09-05
19961996-05-191996-09-10
19971997-06-101997-08-17
19981998-05-161998-09-28
19991999-05-291999-09-03
20002000-05-052000-09-03
20012001-04-222001-09-13
20022002-04-162002-09-10
20032003-04-162003-08-30
20042004-05-112004-09-04
20132013-05-212013-09-12
20142014-05-122014-09-28
20152015-05-082015-09-18
20162016-05-252016-09-22
20172017-04-162017-09-27
20192019-05-262019-10-02
20202020-06-052020-08-27

Every Fixed Threshold

Fixed thresholds at Stamford 5 N
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5664198324
35 C (95 F): Days371319991
40 C (104 F): Days1120011
90 F (32.2 C): Days5537198312
100 F (37.8 C): Days5319992
0 C (32 F): Ice days (max563419588
0 C (32 F): Frost days (min56154196280
-10 C (14 F): Days with min564420154
-20 C (-4 F): Days with min281219611
20 C (68 F): Tropical nights (min5633201619
25 C (77 F): Days with min2119941
10 mm (0.39 in): Days with 10 mm or more rain5257198335
25 mm (0.98 in): Days with 25 mm or more rain5224198316
50 mm (1.97 in): Days with 50 mm or more rain51719832
100 mm (3.94 in): Days with 100 mm or more rain8219721
10 cm (3.9 in): Days with 10 cm or more snowfall47819964
25 cm (9.8 in): Days with 25 cm or more snowfall18219601

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

  • Data for Stamford 5 N 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).