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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Lothair Threshold Days by Year (USC00245211)

15 fixed thresholds counted per year at Lothair (USC00245211): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lothair Thresholds

  • Lothair: days with 10 mm (0.39 in) or more of precipitation in 21 years, most in 1914 with 12.
  • Lothair: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 1927 with 3.
  • Lothair: days with 10 cm (3.9 in) or more of snowfall in 10 years, most in 1936 with 3.
  • Lothair: days with a maximum temperature at or above 30 C (86 F) in 6 years, most in 1939 with 45.
  • 15 fixed thresholds have at least one qualifying day at Lothair.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Lothair Days per year at Lothair with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 1939. 02040601912: 111913: 251914: 281939: 451940: 401941: 27191219131914193919401941
Days per year at Lothair with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 45 in 1939.
Days at or above 30 C (86 F) per year at Lothair
YearDaysDecade average
19121121.3
19132521.3
19142821.3
19394545
19404033.5
19412733.5
First to last qualifying date each year at Lothair For each year, a bar from the first to the last day at Lothair meeting 30 C (86 F). 1912: 20 June 1912 to 1 August 19121913: 27 May 1913 to 13 September 19131914: 1 June 1914 to 16 August 19141939: 29 April 1939 to 18 September 19391940: 10 May 1940 to 13 September 19401941: 12 May 1941 to 22 August 1941191219131914193919401941JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lothair meeting 30 C (86 F).
First to last qualifying date each year at Lothair
YearFirst dateLast date
19121912-06-201912-08-01
19131913-05-271913-09-13
19141914-06-011914-08-16
19391939-04-291939-09-18
19401940-05-101940-09-13
19411941-05-121941-08-22

Every Fixed Threshold

Fixed thresholds at Lothair
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days645193927
35 C (95 F): Days61019395
90 F (32.2 C): Days628193914
100 F (37.8 C): Days4319391
0 C (32 F): Ice days (max672194044
0 C (32 F): Frost days (min62341912196
-10 C (14 F): Days with min696191265
-20 C (-4 F): Days with min645191314
-30 C (-22 F): Days with min51519133
-40 C (-40 F): Days with min2119141
20 C (68 F): Tropical nights (min1119401
10 mm (0.39 in): Days with 10 mm or more rain211219148
25 mm (0.98 in): Days with 25 mm or more rain16319271
50 mm (1.97 in): Days with 50 mm or more rain2119351
10 cm (3.9 in): Days with 10 cm or more snowfall10319362

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

  • Data for Lothair 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).