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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Zalma 4 E Threshold Days by Year

18 fixed thresholds counted per year at Zalma 4 E (USC00239178): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Zalma 4 E Thresholds

  • Zalma 4 E: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 2011 with 54.
  • Zalma 4 E: days with 25 mm (0.98 in) or more of precipitation in 73 years, most in 2011 with 28.
  • Zalma 4 E: days with 50 mm (1.97 in) or more of precipitation in 68 years, most in 2011 with 11.
  • Zalma 4 E: days with 10 cm (3.9 in) or more of snowfall in 25 years, most in 1939 with 3.
  • 18 fixed thresholds have at least one qualifying day at Zalma 4 E.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Zalma 4 E Days per year at Zalma 4 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 95 in 2010. 02550751002008: 632009: 342010: 952011: 812012: 9120082009201020112012
Days per year at Zalma 4 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 95 in 2010.
Days at or above 30 C (86 F) per year at Zalma 4 E
YearDaysDecade average
20086348.5
20093448.5
20109589
20118189
20129189
First to last qualifying date each year at Zalma 4 E For each year, a bar from the first to the last day at Zalma 4 E meeting 30 C (86 F). 2008: 24 May 2008 to 24 September 20082009: 28 May 2009 to 29 August 20092010: 24 May 2010 to 11 October 20102011: 30 May 2011 to 17 October 20112012: 2 May 2012 to 26 September 201220082009201020112012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Zalma 4 E meeting 30 C (86 F).
First to last qualifying date each year at Zalma 4 E
YearFirst dateLast date
20082008-05-242008-09-24
20092009-05-282009-08-29
20102010-05-242010-10-11
20112011-05-302011-10-17
20122012-05-022012-09-26

Every Fixed Threshold

Fixed thresholds at Zalma 4 E
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days595201091
35 C (95 F): Days523201223
40 C (104 F): Days2620126
90 F (32.2 C): Days565201265
100 F (37.8 C): Days313201213
0 C (32 F): Ice days (max52220084
0 C (32 F): Frost days (min51232008103
-10 C (14 F): Days with min52720104
-20 C (-4 F): Days with min2120101
20 C (68 F): Tropical nights (min569201039
25 C (77 F): Days with min4220112
10 mm (0.39 in): Days with 10 mm or more rain7354201129
25 mm (0.98 in): Days with 25 mm or more rain7328201112
50 mm (1.97 in): Days with 50 mm or more rain681120114
100 mm (3.94 in): Days with 100 mm or more rain22219392
200 mm (7.87 in): Days with 200 mm or more rain2119771
10 cm (3.9 in): Days with 10 cm or more snowfall25319391
25 cm (9.8 in): Days with 25 cm or more snowfall2119781

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2008.

Download the Data

  • Data for Zalma 4 E 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).