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

Clarence Threshold Days by Year (USC00361480)

17 fixed thresholds counted per year at Clarence (USC00361480): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Clarence Thresholds

  • Clarence: days with 10 mm (0.39 in) or more of precipitation in 67 years, most in 2018 with 52.
  • Clarence: days with 25 mm (0.98 in) or more of precipitation in 67 years, most in 2018 with 19.
  • Clarence: days with 10 cm (3.9 in) or more of snowfall in 60 years, most in 1994 with 9.
  • Clarence: days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 1996 with 4.
  • 17 fixed thresholds have at least one qualifying day at Clarence.
11 years with a qualifying day
Days at or above 30 C (86 F) per year at Clarence Days per year at Clarence with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 42 in 2016. 02040602008: 232009: 92010: 372011: 312012: 372013: 252014: 92015: 232016: 422017: 152018: 26200820102012201420162018
Days per year at Clarence with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 42 in 2016.
Days at or above 30 C (86 F) per year at Clarence
YearDaysDecade average
20082316
2009916
20103727.2
20113127.2
20123727.2
20132527.2
2014927.2
20152327.2
20164227.2
20171527.2
20182627.2
First to last qualifying date each year at Clarence For each year, a bar from the first to the last day at Clarence meeting 30 C (86 F). 2008: 27 May 2008 to 15 September 20082009: 28 April 2009 to 19 August 20092010: 27 May 2010 to 25 September 20102011: 30 May 2011 to 4 September 20112012: 17 April 2012 to 8 September 20122013: 22 May 2013 to 7 October 20132014: 9 May 2014 to 6 September 20142015: 9 May 2015 to 10 September 20152016: 29 May 2016 to 20 September 20162017: 18 May 2017 to 28 September 20172018: 26 May 2018 to 7 September 2018200820102012201420162018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Clarence meeting 30 C (86 F).
First to last qualifying date each year at Clarence
YearFirst dateLast date
20082008-05-272008-09-15
20092009-04-282009-08-19
20102010-05-272010-09-25
20112011-05-302011-09-04
20122012-04-172012-09-08
20132013-05-222013-10-07
20142014-05-092014-09-06
20152015-05-092015-09-10
20162016-05-292016-09-20
20172017-05-182017-09-28
20182018-05-262018-09-07

Every Fixed Threshold

Fixed thresholds at Clarence
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days1142201626
35 C (95 F): Days2320113
90 F (32.2 C): Days1016201010
100 F (37.8 C): Days1120111
0 C (32 F): Ice days (max1162201043
0 C (32 F): Frost days (min111962013166
-10 C (14 F): Days with min1164201447
-20 C (-4 F): Days with min102320149
-30 C (-22 F): Days with min3220092
20 C (68 F): Tropical nights (min5320161
10 mm (0.39 in): Days with 10 mm or more rain6752201852
25 mm (0.98 in): Days with 25 mm or more rain6719201819
50 mm (1.97 in): Days with 50 mm or more rain41419964
100 mm (3.94 in): Days with 100 mm or more rain3220042
10 cm (3.9 in): Days with 10 cm or more snowfall60919942
25 cm (9.8 in): Days with 25 cm or more snowfall16219711
50 cm (19.7 in): Days with 50 cm or more snowfall2119931

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2008.

Download the Data

  • Data for Clarence 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).