Daily records
Page built 2026-10-19
Data as of 2025-12-31
Search
Built 2026-10-19 (19 October 2026)

St Elmo Threshold Days by Year (USC00057345)

5 fixed thresholds counted per year at St Elmo (USC00057345): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Elmo Thresholds

  • St Elmo: days with 10 mm (0.39 in) or more of precipitation in 9 years, most in 1911 with 20.
  • St Elmo: days with 25 mm (0.98 in) or more of precipitation in 7 years, most in 1952 with 2.
  • St Elmo: days with 10 cm (3.9 in) or more of snowfall in 2 years, most in 1952 with 25.
  • St Elmo: days with 25 cm (9.8 in) or more of snowfall in 2 years, most in 1951 with 10.
  • 5 fixed thresholds have at least one qualifying day at St Elmo.
9 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at St Elmo Days per year at St Elmo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1911. 051015201910: 81911: 201912: 81913: 91914: 161915: 101918: 131951: 91952: 9191019111912191319141915191819511952
Days per year at St Elmo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1911.
Days with 10 mm (0.39 in) or more of precipitation per year at St Elmo
YearDaysDecade average
1910812
19112012
1912812
1913912
19141612
19151012
19181312
195199
195299
First to last qualifying date each year at St Elmo For each year, a bar from the first to the last day at St Elmo meeting 10 mm (0.39 in). 1910: 1 January 1910 to 17 October 19101911: 21 January 1911 to 19 December 19111912: 24 February 1912 to 15 September 19121913: 9 April 1913 to 5 December 19131914: 26 January 1914 to 19 December 19141915: 3 February 1915 to 15 October 19151918: 13 January 1918 to 24 September 19181951: 29 January 1951 to 31 December 19511952: 7 January 1952 to 8 December 195219101912191419181952JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Elmo meeting 10 mm (0.39 in).
First to last qualifying date each year at St Elmo
YearFirst dateLast date
19101910-01-011910-10-17
19111911-01-211911-12-19
19121912-02-241912-09-15
19131913-04-091913-12-05
19141914-01-261914-12-19
19151915-02-031915-10-15
19181918-01-131918-09-24
19511951-01-291951-12-31
19521952-01-071952-12-08

Every Fixed Threshold

Fixed thresholds at St Elmo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain92019119
25 mm (0.98 in): Days with 25 mm or more rain7219522
50 mm (1.97 in): Days with 50 mm or more rain1119101
10 cm (3.9 in): Days with 10 cm or more snowfall225195225
25 cm (9.8 in): Days with 25 cm or more snowfall21019512

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

  • Data for St Elmo 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).