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

Lannas Threshold Days by Year (SWE00139974)

10 fixed thresholds counted per year at Lannas (SWE00139974): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Lannas Thresholds

  • Lannas: days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 2000 with 26.
  • Lannas: nights with a minimum temperature at or below 0 C (32 F) in 71 years, most in 1955 with 219.
  • Lannas: nights with a minimum temperature at or below -10 C (14 F) in 71 years, most in 1980 with 116.
  • Lannas: nights with a minimum temperature at or below -20 C (-4 F) in 71 years, most in 1985 with 57.
  • 10 fixed thresholds have at least one qualifying day at Lannas.
25 years with a qualifying day
Days at or above 30 C (86 F) per year at Lannas Days per year at Lannas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 13 in 1945. 0510151945: 131946: 91947: 81953: 11955: 21958: 11966: 11968: 21969: 21972: 31973: 21975: 11986: 31988: 31991: 11994: 42003: 32004: 12006: 22007: 12008: 22009: 12011: 12014: 72015: 1194519531966197219861994200620092015
Days per year at Lannas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 13 in 1945.
Days at or above 30 C (86 F) per year at Lannas
YearDaysDecade average
19451310
1946910
1947810
195311.3
195521.3
195811.3
196611.7
196821.7
196921.7
197232
197322
197512
198633
198833
199112.5
199442.5
200331.7
200411.7
200621.7
200711.7
200821.7
200911.7
201113
201473
201513
First to last qualifying date each year at Lannas For each year, a bar from the first to the last day at Lannas meeting 30 C (86 F). 1945: 12 July 1945 to 12 August 19451946: 24 June 1946 to 22 July 19461947: 25 June 1947 to 24 July 19471953: 29 June 1953 to 29 June 19531955: 10 July 1955 to 26 August 19551958: 3 July 1958 to 3 July 19581966: 18 June 1966 to 18 June 19661968: 3 July 1968 to 4 July 19681969: 28 June 1969 to 30 July 19691972: 29 June 1972 to 6 July 19721973: 22 June 1973 to 3 July 19731975: 8 August 1975 to 8 August 19751986: 17 June 1986 to 26 June 19861988: 26 June 1988 to 19 July 19881991: 9 July 1991 to 9 July 19911994: 13 July 1994 to 5 August 19942003: 16 July 2003 to 18 July 20032004: 7 August 2004 to 7 August 20042006: 13 June 2006 to 5 August 20062007: 7 June 2007 to 7 June 20072008: 5 June 2008 to 26 July 20082009: 27 June 2009 to 27 June 20092011: 11 June 2011 to 11 June 20112014: 9 July 2014 to 27 July 20142015: 3 July 2015 to 3 July 20151945195519691986200320082015JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Lannas meeting 30 C (86 F).
First to last qualifying date each year at Lannas
YearFirst dateLast date
19451945-07-121945-08-12
19461946-06-241946-07-22
19471947-06-251947-07-24
19531953-06-291953-06-29
19551955-07-101955-08-26
19581958-07-031958-07-03
19661966-06-181966-06-18
19681968-07-031968-07-04
19691969-06-281969-07-30
19721972-06-291972-07-06
19731973-06-221973-07-03
19751975-08-081975-08-08
19861986-06-171986-06-26
19881988-06-261988-07-19
19911991-07-091991-07-09
19941994-07-131994-08-05
20032003-07-162003-07-18
20042004-08-072004-08-07
20062006-06-132006-08-05
20072007-06-072007-06-07
20082008-06-052008-07-26
20092009-06-272009-06-27
20112011-06-112011-06-11
20142014-07-092014-07-27
20152015-07-032015-07-03

Every Fixed Threshold

Fixed thresholds at Lannas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days251319451
90 F (32.2 C): Days5319461
0 C (32 F): Ice days (max70128198075
0 C (32 F): Frost days (min712191955186
-10 C (14 F): Days with min71116198056
-20 C (-4 F): Days with min715719859
-30 C (-22 F): Days with min371419661
10 mm (0.39 in): Days with 10 mm or more rain8526200010
25 mm (0.98 in): Days with 25 mm or more rain60620051
50 mm (1.97 in): Days with 50 mm or more rain6119341

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

  • Data for Lannas 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).