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

Polis Threshold Days by Year (CYE00100077)

12 fixed thresholds counted per year at Polis (CYE00100077): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Polis Thresholds

  • Polis: days with 10 mm (0.39 in) or more of precipitation in 95 years, most in 2012 with 31.
  • Polis: days with 25 mm (0.98 in) or more of precipitation in 87 years, most in 2012 with 10.
  • Polis: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 2003 with 112.
  • Polis: days with a maximum temperature at or above 35 C (95 F) in 23 years, most in 2007 with 26.
  • 12 fixed thresholds have at least one qualifying day at Polis.
23 years with a qualifying day
Days at or above 30 C (86 F) per year at Polis Days per year at Polis with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 112 in 2003. 0501001501973: 711974: 1011975: 921976: 891977: 1001978: 921979: 971981: 911982: 941983: 771984: 921985: 982002: 922003: 1122004: 902005: 882006: 962007: 1032008: 1042009: 952011: 972012: 1032013: 9519731976197919832002200520082012
Days per year at Polis with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 112 in 2003.
Days at or above 30 C (86 F) per year at Polis
YearDaysDecade average
19737191.7
197410191.7
19759291.7
19768991.7
197710091.7
19789291.7
19799791.7
19819190.4
19829490.4
19837790.4
19849290.4
19859890.4
20029297.5
200311297.5
20049097.5
20058897.5
20069697.5
200710397.5
200810497.5
20099597.5
20119798.3
201210398.3
20139598.3
First to last qualifying date each year at Polis For each year, a bar from the first to the last day at Polis meeting 30 C (86 F). 1973: 7 May 1973 to 5 October 19731974: 1 May 1974 to 6 October 19741975: 14 May 1975 to 2 October 19751976: 8 May 1976 to 23 October 19761977: 21 May 1977 to 25 September 19771978: 26 May 1978 to 25 October 19781979: 28 April 1979 to 19 November 19791981: 31 May 1981 to 7 October 19811982: 10 May 1982 to 24 September 19821983: 30 May 1983 to 19 September 19831984: 13 May 1984 to 15 October 19841985: 18 May 1985 to 7 October 19852002: 8 June 2002 to 1 October 20022003: 2 May 2003 to 25 October 20032004: 29 May 2004 to 25 October 20042005: 13 May 2005 to 28 September 20052006: 25 May 2006 to 18 October 20062007: 7 May 2007 to 6 November 20072008: 22 May 2008 to 21 September 20082009: 1 June 2009 to 20 October 20092011: 19 May 2011 to 11 October 20112012: 22 May 2012 to 19 October 20122013: 3 May 2013 to 2 October 201319731976197919832002200520082012JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Polis meeting 30 C (86 F).
First to last qualifying date each year at Polis
YearFirst dateLast date
19731973-05-071973-10-05
19741974-05-011974-10-06
19751975-05-141975-10-02
19761976-05-081976-10-23
19771977-05-211977-09-25
19781978-05-261978-10-25
19791979-04-281979-11-19
19811981-05-311981-10-07
19821982-05-101982-09-24
19831983-05-301983-09-19
19841984-05-131984-10-15
19851985-05-181985-10-07
20022002-06-082002-10-01
20032003-05-022003-10-25
20042004-05-292004-10-25
20052005-05-132005-09-28
20062006-05-252006-10-18
20072007-05-072007-11-06
20082008-05-222008-09-21
20092009-06-012009-10-20
20112011-05-192011-10-11
20122012-05-222012-10-19
20132013-05-032013-10-02

Every Fixed Threshold

Fixed thresholds at Polis
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days23112200395
35 C (95 F): Days2326200715
40 C (104 F): Days2219732
90 F (32.2 C): Days2376201256
100 F (37.8 C): Days11520081
0 C (32 F): Frost days (min3119831
20 C (68 F): Tropical nights (min23104200277
25 C (77 F): Days with min11820128
10 mm (0.39 in): Days with 10 mm or more rain9531201213
25 mm (0.98 in): Days with 25 mm or more rain871020123
50 mm (1.97 in): Days with 50 mm or more rain23219221
100 mm (3.94 in): Days with 100 mm or more rain1119361

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.

Download the Data

  • Data for Polis 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).