Hanko Tulliniemi Threshold Days by Year (FIE00141994)

5 fixed thresholds counted per year at Hanko Tulliniemi (FIE00141994): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hanko Tulliniemi Thresholds

Hanko Tulliniemi: days with a maximum temperature at or below 0 C (32 F) in 32 years, most in 2010 with 101.
Hanko Tulliniemi: nights with a minimum temperature at or below 0 C (32 F) in 32 years, most in 2010 with 139.
Hanko Tulliniemi: nights with a minimum temperature at or below -10 C (14 F) in 29 years, most in 2010 with 50.
Hanko Tulliniemi: nights with a minimum temperature at or above 20 C (68 F) in 15 years, most in 2014 with 17.
5 fixed thresholds have at least one qualifying day at Hanko Tulliniemi.

Nights at or below 0 C (32 F)

32 years with a qualifying day

Days per year at Hanko Tulliniemi with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 139 in 2010.

Nights at or below 0 C (32 F) per year at Hanko Tulliniemi
Year	Days	Decade average
1994	112	116
1995	106	116
1996	136	116
1997	121	116
1998	115	116
1999	106	116
2001	111	103.4
2002	114	103.4
2003	125	103.4
2004	113	103.4
2005	110	103.4
2006	113	103.4
2007	73	103.4
2008	57	103.4
2009	115	103.4
2010	139	90.5
2011	92	90.5
2012	114	90.5
2013	109	90.5
2014	65	90.5
2015	45	90.5
2016	93	90.5
2017	67	90.5
2018	107	90.5
2019	74	90.5
2020	33	79.6
2021	98	79.6
2022	95	79.6
2023	99	79.6
2024	95	79.6
2025	67	79.6
2026	70	79.6

For each year, a bar from the first to the last day at Hanko Tulliniemi meeting 0 C (32 F).

First to last qualifying date each year at Hanko Tulliniemi
Year	First date	Last date
1994	1994-01-01	1994-12-29
1995	1995-01-02	1995-12-31
1996	1996-01-01	1996-12-31
1997	1997-01-01	1997-12-31
1998	1998-01-01	1998-12-31
1999	1999-01-03	1999-12-31
2001	2001-01-01	2001-12-31
2002	2002-01-01	2002-12-31
2003	2003-01-01	2003-12-31
2004	2004-01-01	2004-12-29
2005	2005-01-09	2005-12-31
2006	2006-01-01	2006-12-29
2007	2007-01-11	2007-12-17
2008	2008-01-02	2008-12-30
2009	2009-01-01	2009-12-31
2010	2010-01-01	2010-12-31
2011	2011-01-01	2011-12-31
2012	2012-01-01	2012-12-29
2013	2013-01-04	2013-12-14
2014	2014-01-11	2014-12-30
2015	2015-01-04	2015-12-31
2016	2016-01-01	2016-12-29
2017	2017-01-02	2017-12-17
2018	2018-01-07	2018-12-31
2019	2019-01-02	2019-12-29
2020	2020-01-05	2020-12-26
2021	2021-01-02	2021-12-30
2022	2022-01-01	2022-12-27
2023	2023-01-04	2023-12-31
2024	2024-01-01	2024-12-31
2025	2025-01-01	2025-12-31
2026	2026-01-01	2026-04-09

Every Fixed Threshold

Fixed thresholds at Hanko Tulliniemi
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
0 C (32 F): Ice days (max	32	101	2010	50
0 C (32 F): Frost days (min	32	139	2010	70
-10 C (14 F): Days with min	29	50	2010	23
-20 C (-4 F): Days with min	8	8	2003	1
20 C (68 F): Tropical nights (min	15	17	2014	8

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1994.

Download the Data

Data for Hanko Tulliniemi 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Hanko Tulliniemi Threshold Days by Year (FIE00141994)

Key Facts for Hanko Tulliniemi Thresholds

Nights at or below 0 C (32 F)

Every Fixed Threshold

Download the Data

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