Built 2026-10-19 (19 October 2026)

Hanna 4 SSE Threshold Days by Year (USC00164050)

5 fixed thresholds counted per year at Hanna 4 SSE (USC00164050): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hanna 4 SSE Thresholds

  • Hanna 4 SSE: days with 10 mm (0.39 in) or more of precipitation in 29 years, most in 2004 with 59.
  • Hanna 4 SSE: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 2020 with 30.
  • Hanna 4 SSE: days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 2018 with 11.
  • Hanna 4 SSE: days with 100 mm (3.94 in) or more of precipitation in 12 years, most in 2008 with 3.
  • 5 fixed thresholds have at least one qualifying day at Hanna 4 SSE.
29 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hanna 4 SSE Days per year at Hanna 4 SSE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 59 in 2004. 02040601973: 481974: 551975: 491976: 391977: 321978: 301979: 431980: 261981: 291982: 411983: 381984: 331992: 461998: 441999: 352000: 432001: 512002: 402003: 462004: 592005: 292006: 342007: 432008: 352009: 442018: 512019: 542020: 562021: 441973197619791982199220002003200620092020
Days per year at Hanna 4 SSE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 59 in 2004.
Days with 10 mm (0.39 in) or more of precipitation per year at Hanna 4 SSE
YearDaysDecade average
19734842.3
19745542.3
19754942.3
19763942.3
19773242.3
19783042.3
19794342.3
19802633.4
19812933.4
19824133.4
19833833.4
19843333.4
19924641.7
19984441.7
19993541.7
20004342.4
20015142.4
20024042.4
20034642.4
20045942.4
20052942.4
20063442.4
20074342.4
20083542.4
20094442.4
20185152.5
20195452.5
20205650
20214450
First to last qualifying date each year at Hanna 4 SSE For each year, a bar from the first to the last day at Hanna 4 SSE meeting 10 mm (0.39 in). 1973: 6 January 1973 to 25 December 19731974: 3 January 1974 to 30 December 19741975: 3 January 1975 to 29 December 19751976: 25 January 1976 to 25 December 19761977: 9 January 1977 to 30 December 19771978: 8 January 1978 to 30 December 19781979: 1 January 1979 to 24 December 19791980: 22 January 1980 to 9 December 19801981: 6 January 1981 to 2 December 19811982: 3 January 1982 to 28 December 19821983: 1 January 1983 to 17 December 19831984: 24 January 1984 to 6 December 19841992: 12 January 1992 to 24 December 19921998: 4 January 1998 to 25 December 19981999: 2 January 1999 to 18 December 19992000: 9 January 2000 to 27 December 20002001: 11 January 2001 to 23 December 20012002: 6 January 2002 to 30 December 20022003: 25 January 2003 to 29 December 20032004: 8 January 2004 to 23 December 20042005: 8 January 2005 to 15 December 20052006: 10 January 2006 to 30 December 20062007: 5 January 2007 to 27 December 20072008: 19 January 2008 to 28 December 20082009: 6 January 2009 to 24 December 20092018: 8 January 2018 to 31 December 20182019: 3 January 2019 to 30 December 20192020: 2 January 2020 to 31 December 20202021: 1 January 2021 to 19 December 202119731977198119922001200520092021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hanna 4 SSE meeting 10 mm (0.39 in).
First to last qualifying date each year at Hanna 4 SSE
YearFirst dateLast date
19731973-01-061973-12-25
19741974-01-031974-12-30
19751975-01-031975-12-29
19761976-01-251976-12-25
19771977-01-091977-12-30
19781978-01-081978-12-30
19791979-01-011979-12-24
19801980-01-221980-12-09
19811981-01-061981-12-02
19821982-01-031982-12-28
19831983-01-011983-12-17
19841984-01-241984-12-06
19921992-01-121992-12-24
19981998-01-041998-12-25
19991999-01-021999-12-18
20002000-01-092000-12-27
20012001-01-112001-12-23
20022002-01-062002-12-30
20032003-01-252003-12-29
20042004-01-082004-12-23
20052005-01-082005-12-15
20062006-01-102006-12-30
20072007-01-052007-12-27
20082008-01-192008-12-28
20092009-01-062009-12-24
20182018-01-082018-12-31
20192019-01-032019-12-30
20202020-01-022020-12-31
20212021-01-012021-12-19

Every Fixed Threshold

Fixed thresholds at Hanna 4 SSE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2959200444
25 mm (0.98 in): Days with 25 mm or more rain2930202012
50 mm (1.97 in): Days with 50 mm or more rain291120183
100 mm (3.94 in): Days with 100 mm or more rain12320082
10 cm (3.9 in): Days with 10 cm or more snowfall2119771

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.

Download the Data

  • Data for Hanna 4 SSE 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).