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

Ansonia 1 NW Threshold Days by Year (USC00060128)

16 fixed thresholds counted per year at Ansonia 1 NW (USC00060128): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ansonia 1 NW Thresholds

  • Ansonia 1 NW: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 2006 with 53.
  • Ansonia 1 NW: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1983 with 24.
  • Ansonia 1 NW: days with 50 mm (1.97 in) or more of precipitation in 38 years, most in 1979 with 7.
  • Ansonia 1 NW: days with 10 cm (3.9 in) or more of snowfall in 11 years, most in 1996 with 4.
  • 16 fixed thresholds have at least one qualifying day at Ansonia 1 NW.
3 years with a qualifying day
Days at or above 30 C (86 F) per year at Ansonia 1 NW Days per year at Ansonia 1 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 27 in 2016. 01020302011: 192013: 192016: 27201120132016
Days per year at Ansonia 1 NW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 27 in 2016.
Days at or above 30 C (86 F) per year at Ansonia 1 NW
YearDaysDecade average
20111921.7
20131921.7
20162721.7
First to last qualifying date each year at Ansonia 1 NW For each year, a bar from the first to the last day at Ansonia 1 NW meeting 30 C (86 F). 2011: 9 June 2011 to 3 August 20112013: 22 May 2013 to 13 September 20132016: 7 June 2016 to 15 September 2016201120132016JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ansonia 1 NW meeting 30 C (86 F).
First to last qualifying date each year at Ansonia 1 NW
YearFirst dateLast date
20112011-06-092011-08-03
20132013-05-222013-09-13
20162016-06-072016-09-15

Every Fixed Threshold

Fixed thresholds at Ansonia 1 NW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days327201627
35 C (95 F): Days2120111
90 F (32.2 C): Days313201310
0 C (32 F): Ice days (max331201317
0 C (32 F): Frost days (min31322013130
-10 C (14 F): Days with min327201119
-20 C (-4 F): Days with min1220162
20 C (68 F): Tropical nights (min324201324
25 C (77 F): Days with min2120131
10 mm (0.39 in): Days with 10 mm or more rain4053200624
25 mm (0.98 in): Days with 25 mm or more rain4024198310
50 mm (1.97 in): Days with 50 mm or more rain38719792
100 mm (3.94 in): Days with 100 mm or more rain10119711
200 mm (7.87 in): Days with 200 mm or more rain1119821
10 cm (3.9 in): Days with 10 cm or more snowfall11419963
25 cm (9.8 in): Days with 25 cm or more snowfall2120011

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2011.

Download the Data

  • Data for Ansonia 1 NW 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 (2026-10-12).