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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

Birzai Threshold Days by Year (LH000026531)

12 fixed thresholds counted per year at Birzai (LH000026531): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Birzai Thresholds

  • Birzai: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 2007 with 22.
  • Birzai: days with a maximum temperature at or below 0 C (32 F) in 43 years, most in 1985 with 96.
  • Birzai: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1980 with 161.
  • Birzai: nights with a minimum temperature at or below -10 C (14 F) in 42 years, most in 1987 with 63.
  • 12 fixed thresholds have at least one qualifying day at Birzai.
25 years with a qualifying day
Days at or above 30 C (86 F) per year at Birzai Days per year at Birzai with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 13 in 1994. 0510151971: 81973: 31975: 11979: 11982: 11984: 11986: 11988: 11989: 21992: 61994: 131995: 31997: 21998: 11999: 32001: 52002: 82003: 32005: 12006: 102007: 42009: 12012: 42025: 12026: 3197119791986199219972001200520092026
Days per year at Birzai with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 13 in 1994.
Days at or above 30 C (86 F) per year at Birzai
YearDaysDecade average
197183.3
197333.3
197513.3
197913.3
198211.2
198411.2
198611.2
198811.2
198921.2
199264.7
1994134.7
199534.7
199724.7
199814.7
199934.7
200154.6
200284.6
200334.6
200514.6
2006104.6
200744.6
200914.6
201244
202512
202632
First to last qualifying date each year at Birzai For each year, a bar from the first to the last day at Birzai meeting 30 C (86 F). 1971: 26 July 1971 to 21 August 19711973: 6 July 1973 to 7 August 19731975: 7 August 1975 to 7 August 19751979: 25 June 1979 to 25 June 19791982: 9 August 1982 to 9 August 19821984: 12 July 1984 to 12 July 19841986: 5 August 1986 to 5 August 19861988: 7 June 1988 to 7 June 19881989: 8 July 1989 to 9 July 19891992: 22 July 1992 to 1 September 19921994: 13 July 1994 to 6 August 19941995: 2 June 1995 to 24 August 19951997: 30 June 1997 to 26 August 19971998: 22 July 1998 to 22 July 19981999: 15 June 1999 to 12 July 19992001: 15 July 2001 to 17 August 20012002: 19 June 2002 to 16 August 20022003: 28 July 2003 to 31 July 20032005: 29 May 2005 to 29 May 20052006: 21 June 2006 to 13 July 20062007: 26 May 2007 to 23 August 20072009: 19 July 2009 to 19 July 20092012: 6 July 2012 to 29 July 20122025: 3 July 2025 to 3 July 20252026: 28 June 2026 to 31 July 20261971198219891997200220072026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Birzai meeting 30 C (86 F).
First to last qualifying date each year at Birzai
YearFirst dateLast date
19711971-07-261971-08-21
19731973-07-061973-08-07
19751975-08-071975-08-07
19791979-06-251979-06-25
19821982-08-091982-08-09
19841984-07-121984-07-12
19861986-08-051986-08-05
19881988-06-071988-06-07
19891989-07-081989-07-09
19921992-07-221992-09-01
19941994-07-131994-08-06
19951995-06-021995-08-24
19971997-06-301997-08-26
19981998-07-221998-07-22
19991999-06-151999-07-12
20012001-07-152001-08-17
20022002-06-192002-08-16
20032003-07-282003-07-31
20052005-05-292005-05-29
20062006-06-212006-07-13
20072007-05-262007-08-23
20092009-07-192009-07-19
20122012-07-062012-07-29
20252025-07-032025-07-03
20262026-06-282026-07-31

Every Fixed Threshold

Fixed thresholds at Birzai
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days251319943
35 C (95 F): Days1120061
90 F (32.2 C): Days8519941
0 C (32 F): Ice days (max4396198551
0 C (32 F): Frost days (min42161198085
-10 C (14 F): Days with min4263198740
-20 C (-4 F): Days with min3326198510
-30 C (-22 F): Days with min5419872
20 C (68 F): Tropical nights (min3119921
10 mm (0.39 in): Days with 10 mm or more rain5222200713
25 mm (0.98 in): Days with 25 mm or more rain36419662
50 mm (1.97 in): Days with 50 mm or more rain5219661

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1971.

Download the Data

  • Data for Birzai 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 (2026-10-17).