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Built 2026-10-19 (19 October 2026)

Seneca Sf 1N Threshold Days by Year (USC00468051)

16 fixed thresholds counted per year at Seneca Sf 1N (USC00468051): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Seneca Sf 1N Thresholds

  • Seneca Sf 1N: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1973 with 55.
  • Seneca Sf 1N: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 1972 with 19.
  • Seneca Sf 1N: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 1987 with 48.
  • Seneca Sf 1N: days with a maximum temperature at or below 0 C (32 F) in 34 years, most in 1977 with 37.
  • 16 fixed thresholds have at least one qualifying day at Seneca Sf 1N.
34 years with a qualifying day
Days at or above 30 C (86 F) per year at Seneca Sf 1N Days per year at Seneca Sf 1N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 48 in 1987. 02040601940: 151941: 451942: 91943: 141944: 221968: 291969: 171970: 151971: 61972: 71973: 201974: 91975: 171976: 161977: 301978: 221979: 111980: 331981: 151982: 181983: 391984: 171985: 181986: 201987: 481988: 431989: 181990: 241991: 391995: 171996: 41997: 51998: 71999: 19194019441971197519791983198719911998
Days per year at Seneca Sf 1N with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 48 in 1987.
Days at or above 30 C (86 F) per year at Seneca Sf 1N
YearDaysDecade average
19401521
19414521
1942921
19431421
19442221
19682923
19691723
19701515.3
1971615.3
1972715.3
19732015.3
1974915.3
19751715.3
19761615.3
19773015.3
19782215.3
19791115.3
19803326.9
19811526.9
19821826.9
19833926.9
19841726.9
19851826.9
19862026.9
19874826.9
19884326.9
19891826.9
19902416.4
19913916.4
19951716.4
1996416.4
1997516.4
1998716.4
19991916.4
First to last qualifying date each year at Seneca Sf 1N For each year, a bar from the first to the last day at Seneca Sf 1N meeting 30 C (86 F). 1940: 7 June 1940 to 28 August 19401941: 19 April 1941 to 7 October 19411942: 1 May 1942 to 3 August 19421943: 3 June 1943 to 5 September 19431944: 12 June 1944 to 4 September 19441968: 6 June 1968 to 23 September 19681969: 29 May 1969 to 22 July 19691970: 21 May 1970 to 22 September 19701971: 18 May 1971 to 5 September 19711972: 18 July 1972 to 24 July 19721973: 10 June 1973 to 4 September 19731974: 9 June 1974 to 28 July 19741975: 21 May 1975 to 27 August 19751976: 17 April 1976 to 8 September 19761977: 16 May 1977 to 2 September 19771978: 12 June 1978 to 21 September 19781979: 10 May 1979 to 11 August 19791980: 29 May 1980 to 14 September 19801981: 14 June 1981 to 28 August 19811982: 17 May 1982 to 5 August 19821983: 24 June 1983 to 20 September 19831984: 21 May 1984 to 21 September 19841985: 14 May 1985 to 9 September 19851986: 17 May 1986 to 1 August 19861987: 28 May 1987 to 27 August 19871988: 31 May 1988 to 27 August 19881989: 25 May 1989 to 10 September 19891990: 27 April 1990 to 6 September 19901991: 12 May 1991 to 31 July 19911995: 13 July 1995 to 31 August 19951996: 18 May 1996 to 7 August 19961997: 24 June 1997 to 17 August 19971998: 16 May 1998 to 14 September 19981999: 9 June 1999 to 13 August 19991940196819731978198319881996JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Seneca Sf 1N meeting 30 C (86 F).
First to last qualifying date each year at Seneca Sf 1N
YearFirst dateLast date
19401940-06-071940-08-28
19411941-04-191941-10-07
19421942-05-011942-08-03
19431943-06-031943-09-05
19441944-06-121944-09-04
19681968-06-061968-09-23
19691969-05-291969-07-22
19701970-05-211970-09-22
19711971-05-181971-09-05
19721972-07-181972-07-24
19731973-06-101973-09-04
19741974-06-091974-07-28
19751975-05-211975-08-27
19761976-04-171976-09-08
19771977-05-161977-09-02
19781978-06-121978-09-21
19791979-05-101979-08-11
19801980-05-291980-09-14
19811981-06-141981-08-28
19821982-05-171982-08-05
19831983-06-241983-09-20
19841984-05-211984-09-21
19851985-05-141985-09-09
19861986-05-171986-08-01
19871987-05-281987-08-27
19881988-05-311988-08-27
19891989-05-251989-09-10
19901990-04-271990-09-06
19911991-05-121991-07-31
19951995-07-131995-08-31
19961996-05-181996-08-07
19971997-06-241997-08-17
19981998-05-161998-09-14
19991999-06-091999-08-13

Every Fixed Threshold

Fixed thresholds at Seneca Sf 1N
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3448198719
35 C (95 F): Days3519872
90 F (32.2 C): Days252519883
0 C (32 F): Ice days (max3437197715
0 C (32 F): Frost days (min301961983160
-10 C (14 F): Days with min3067196925
-20 C (-4 F): Days with min292019771
-30 C (-22 F): Days with min4319893
20 C (68 F): Tropical nights (min1119401
10 mm (0.39 in): Days with 10 mm or more rain3755197333
25 mm (0.98 in): Days with 25 mm or more rain371919728
50 mm (1.97 in): Days with 50 mm or more rain25419961
100 mm (3.94 in): Days with 100 mm or more rain2119721
10 cm (3.9 in): Days with 10 cm or more snowfall31719715
25 cm (9.8 in): Days with 25 cm or more snowfall13219871
50 cm (19.7 in): Days with 50 cm or more snowfall1119701

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.

Download the Data

  • Data for Seneca Sf 1N 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).