Built 2026-10-16 (16 October 2026)

Siedlce Threshold Days by Year

13 fixed thresholds counted per year at Siedlce (PL000012385): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Siedlce Thresholds

  • Siedlce: days with a maximum temperature at or below 0 C (32 F) in 61 years, most in 1969 with 82.
  • Siedlce: days with a maximum temperature at or above 30 C (86 F) in 57 years, most in 2015 with 18.
  • Siedlce: days with 10 mm (0.39 in) or more of precipitation in 54 years, most in 1966 with 24.
  • Siedlce: days with 25 mm (0.98 in) or more of precipitation in 45 years, most in 1988 with 6.
  • 13 fixed thresholds have at least one qualifying day at Siedlce.
57 years with a qualifying day
Days at or above 30 C (86 F) per year at Siedlce Days per year at Siedlce with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 2015. 051015201966: 21967: 21968: 51969: 31971: 141972: 101973: 11974: 21975: 11976: 11979: 21981: 31982: 31983: 11984: 11985: 41986: 41987: 11988: 11989: 71990: 11991: 21992: 151993: 21994: 151995: 81996: 11997: 21998: 51999: 42000: 52001: 82002: 92003: 82004: 52005: 52006: 152007: 92008: 12009: 22010: 172011: 12012: 142013: 72014: 62015: 182016: 92017: 62018: 152019: 162020: 42021: 112022: 162023: 122024: 182025: 52026: 151966197319821988199420002006201220182024
Days per year at Siedlce with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 18 in 2015.
Days at or above 30 C (86 F) per year at Siedlce
YearDaysDecade average
196623
196723
196853
196933
1971144.4
1972104.4
197314.4
197424.4
197514.4
197614.4
197924.4
198132.8
198232.8
198312.8
198412.8
198542.8
198642.8
198712.8
198812.8
198972.8
199015.5
199125.5
1992155.5
199325.5
1994155.5
199585.5
199615.5
199725.5
199855.5
199945.5
200056.7
200186.7
200296.7
200386.7
200456.7
200556.7
2006156.7
200796.7
200816.7
200926.7
20101710.9
2011110.9
20121410.9
2013710.9
2014610.9
20151810.9
2016910.9
2017610.9
20181510.9
20191610.9
2020411.6
20211111.6
20221611.6
20231211.6
20241811.6
2025511.6
20261511.6
First to last qualifying date each year at Siedlce For each year, a bar from the first to the last day at Siedlce meeting 30 C (86 F). 1966: 19 July 1966 to 20 July 19661967: 26 June 1967 to 13 July 19671968: 17 June 1968 to 6 July 19681969: 25 July 1969 to 2 August 19691971: 27 July 1971 to 22 August 19711972: 12 June 1972 to 30 July 19721973: 7 August 1973 to 7 August 19731974: 16 August 1974 to 17 August 19741975: 15 July 1975 to 15 July 19751976: 28 June 1976 to 28 June 19761979: 31 May 1979 to 1 June 19791981: 19 July 1981 to 8 August 19811982: 17 July 1982 to 9 August 19821983: 16 May 1983 to 16 May 19831984: 12 July 1984 to 12 July 19841985: 15 August 1985 to 26 August 19851986: 3 July 1986 to 5 August 19861987: 1 July 1987 to 1 July 19871988: 24 July 1988 to 24 July 19881989: 8 July 1989 to 22 August 19891990: 21 June 1990 to 21 June 19901991: 9 July 1991 to 8 August 19911992: 2 July 1992 to 31 August 19921993: 4 August 1993 to 16 August 19931994: 13 July 1994 to 6 August 19941995: 10 July 1995 to 24 August 19951996: 9 June 1996 to 9 June 19961997: 29 June 1997 to 30 June 19971998: 7 June 1998 to 3 August 19981999: 12 June 1999 to 9 August 19992000: 11 June 2000 to 19 August 20002001: 14 July 2001 to 21 August 20012002: 10 July 2002 to 2 August 20022003: 26 May 2003 to 4 August 20032004: 9 July 2004 to 20 August 20042005: 29 May 2005 to 30 July 20052006: 26 June 2006 to 27 July 20062007: 16 June 2007 to 23 August 20072008: 12 July 2008 to 12 July 20082009: 18 July 2009 to 23 July 20092010: 10 June 2010 to 16 August 20102011: 14 July 2011 to 14 July 20112012: 30 April 2012 to 20 August 20122013: 21 June 2013 to 9 August 20132014: 29 July 2014 to 11 August 20142015: 5 July 2015 to 1 September 20152016: 17 June 2016 to 5 August 20162017: 31 July 2017 to 19 August 20172018: 31 May 2018 to 24 August 20182019: 11 June 2019 to 29 August 20192020: 7 August 2020 to 22 August 20202021: 22 June 2021 to 28 July 20212022: 19 June 2022 to 28 August 20222023: 15 July 2023 to 29 August 20232024: 19 June 2024 to 4 September 20242025: 2 July 2025 to 5 September 20252026: 21 June 2026 to 9 September 202619661975198619942002201020182026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Siedlce meeting 30 C (86 F).
First to last qualifying date each year at Siedlce
YearFirst dateLast date
19661966-07-191966-07-20
19671967-06-261967-07-13
19681968-06-171968-07-06
19691969-07-251969-08-02
19711971-07-271971-08-22
19721972-06-121972-07-30
19731973-08-071973-08-07
19741974-08-161974-08-17
19751975-07-151975-07-15
19761976-06-281976-06-28
19791979-05-311979-06-01
19811981-07-191981-08-08
19821982-07-171982-08-09
19831983-05-161983-05-16
19841984-07-121984-07-12
19851985-08-151985-08-26
19861986-07-031986-08-05
19871987-07-011987-07-01
19881988-07-241988-07-24
19891989-07-081989-08-22
19901990-06-211990-06-21
19911991-07-091991-08-08
19921992-07-021992-08-31
19931993-08-041993-08-16
19941994-07-131994-08-06
19951995-07-101995-08-24
19961996-06-091996-06-09
19971997-06-291997-06-30
19981998-06-071998-08-03
19991999-06-121999-08-09
20002000-06-112000-08-19
20012001-07-142001-08-21
20022002-07-102002-08-02
20032003-05-262003-08-04
20042004-07-092004-08-20
20052005-05-292005-07-30
20062006-06-262006-07-27
20072007-06-162007-08-23
20082008-07-122008-07-12
20092009-07-182009-07-23
20102010-06-102010-08-16
20112011-07-142011-07-14
20122012-04-302012-08-20
20132013-06-212013-08-09
20142014-07-292014-08-11
20152015-07-052015-09-01
20162016-06-172016-08-05
20172017-07-312017-08-19
20182018-05-312018-08-24
20192019-06-112019-08-29
20202020-08-072020-08-22
20212021-06-222021-07-28
20222022-06-192022-08-28
20232023-07-152023-08-29
20242024-06-192024-09-04
20252025-07-022025-09-05
20262026-06-212026-09-09

Every Fixed Threshold

Fixed thresholds at Siedlce
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5718201515
35 C (95 F): Days4119942
90 F (32.2 C): Days291120157
0 C (32 F): Ice days (max6182196938
0 C (32 F): Frost days (min35150198173
-10 C (14 F): Days with min3551196925
-20 C (-4 F): Days with min181919873
-30 C (-22 F): Days with min2319873
20 C (68 F): Tropical nights (min3119915
10 mm (0.39 in): Days with 10 mm or more rain542419668
25 mm (0.98 in): Days with 25 mm or more rain45619887
50 mm (1.97 in): Days with 50 mm or more rain10219723
100 mm (3.94 in): Days with 100 mm or more rain10n/a1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.

Download the Data

  • Data for Siedlce 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-14).