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Built 2026-10-19 (19 October 2026)

Serafina 6 WNW Threshold Days by Year (USC00298227)

12 fixed thresholds counted per year at Serafina 6 WNW (USC00298227): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Serafina 6 WNW Thresholds

  • Serafina 6 WNW: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 1931 with 23.
  • Serafina 6 WNW: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 1919 with 6.
  • Serafina 6 WNW: days with 10 cm (3.9 in) or more of snowfall in 16 years, most in 1928 with 8.
  • Serafina 6 WNW: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1919 with 1.
  • 12 fixed thresholds have at least one qualifying day at Serafina 6 WNW.
18 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Serafina 6 WNW Days per year at Serafina 6 WNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1931. 01020301916: 81917: 71918: 121919: 191925: 161926: 171927: 161928: 141929: 161930: 141931: 231932: 121933: 91934: 41935: 131936: 61937: 111938: 14191619181925192719291931193319351937
Days per year at Serafina 6 WNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1931.
Days with 10 mm (0.39 in) or more of precipitation per year at Serafina 6 WNW
YearDaysDecade average
1916811.5
1917711.5
19181211.5
19191911.5
19251615.8
19261715.8
19271615.8
19281415.8
19291615.8
19301411.8
19312311.8
19321211.8
1933911.8
1934411.8
19351311.8
1936611.8
19371111.8
19381411.8
First to last qualifying date each year at Serafina 6 WNW For each year, a bar from the first to the last day at Serafina 6 WNW meeting 10 mm (0.39 in). 1916: 18 January 1916 to 10 October 19161917: 14 February 1917 to 16 September 19171918: 27 January 1918 to 20 December 19181919: 20 March 1919 to 8 October 19191925: 10 January 1925 to 4 December 19251926: 20 March 1926 to 9 December 19261927: 12 June 1927 to 24 September 19271928: 5 February 1928 to 18 November 19281929: 5 January 1929 to 6 November 19291930: 16 May 1930 to 19 November 19301931: 13 February 1931 to 13 December 19311932: 19 February 1932 to 26 September 19321933: 16 June 1933 to 5 November 19331934: 17 April 1934 to 17 November 19341935: 6 January 1935 to 25 November 19351936: 9 July 1936 to 27 September 19361937: 14 March 1937 to 7 September 19371938: 17 February 1938 to 7 October 1938191619191927193019331936JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Serafina 6 WNW meeting 10 mm (0.39 in).
First to last qualifying date each year at Serafina 6 WNW
YearFirst dateLast date
19161916-01-181916-10-10
19171917-02-141917-09-16
19181918-01-271918-12-20
19191919-03-201919-10-08
19251925-01-101925-12-04
19261926-03-201926-12-09
19271927-06-121927-09-24
19281928-02-051928-11-18
19291929-01-051929-11-06
19301930-05-161930-11-19
19311931-02-131931-12-13
19321932-02-191932-09-26
19331933-06-161933-11-05
19341934-04-171934-11-17
19351935-01-061935-11-25
19361936-07-091936-09-27
19371937-03-141937-09-07
19381938-02-171938-10-07

Every Fixed Threshold

Fixed thresholds at Serafina 6 WNW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2101191878
90 F (32.2 C): Days255191829
0 C (32 F): Ice days (max21619185
0 C (32 F): Frost days (min21711918167
-10 C (14 F): Days with min241191820
-20 C (-4 F): Days with min2419183
20 C (68 F): Tropical nights (min1119181
10 mm (0.39 in): Days with 10 mm or more rain1823193114
25 mm (0.98 in): Days with 25 mm or more rain16619194
50 mm (1.97 in): Days with 50 mm or more rain5119191
10 cm (3.9 in): Days with 10 cm or more snowfall16819287
25 cm (9.8 in): Days with 25 cm or more snowfall3219191

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1918.

Download the Data

  • Data for Serafina 6 WNW 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).