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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Henry Threshold Days by Year

12 fixed thresholds counted per year at Henry (USC00104230): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Henry Thresholds

  • Henry: days with 10 cm (3.9 in) or more of snowfall in 8 years, most in 1981 with 7.
  • Henry: days with 10 mm (0.39 in) or more of precipitation in 7 years, most in 1983 with 17.
  • Henry: days with a maximum temperature at or above 30 C (86 F) in 6 years, most in 1981 with 26.
  • Henry: days with a maximum temperature at or below 0 C (32 F) in 6 years, most in 1976 with 69.
  • 12 fixed thresholds have at least one qualifying day at Henry.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Henry Days per year at Henry with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 26 in 1981. 01020301976: 51977: 41980: 111981: 261982: 61983: 15197619771980198119821983
Days per year at Henry with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 26 in 1981.
Days at or above 30 C (86 F) per year at Henry
YearDaysDecade average
197654.5
197744.5
19801114.5
19812614.5
1982614.5
19831514.5
First to last qualifying date each year at Henry For each year, a bar from the first to the last day at Henry meeting 30 C (86 F). 1976: 7 July 1976 to 6 September 19761977: 16 July 1977 to 15 August 19771980: 11 July 1980 to 4 October 19801981: 25 June 1981 to 29 August 19811982: 20 July 1982 to 23 August 19821983: 5 July 1983 to 1 September 1983197619771980198119821983JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Henry meeting 30 C (86 F).
First to last qualifying date each year at Henry
YearFirst dateLast date
19761976-07-071976-09-06
19771977-07-161977-08-15
19801980-07-111980-10-04
19811981-06-251981-08-29
19821982-07-201982-08-23
19831983-07-051983-09-01

Every Fixed Threshold

Fixed thresholds at Henry
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days626198115
90 F (32.2 C): Days3919813
0 C (32 F): Ice days (max669197648
0 C (32 F): Frost days (min62361976206
-10 C (14 F): Days with min6125197664
-20 C (-4 F): Days with min642197619
-30 C (-22 F): Days with min5719822
-40 C (-40 F): Days with min1119821
10 mm (0.39 in): Days with 10 mm or more rain717198313
25 mm (0.98 in): Days with 25 mm or more rain4319772
10 cm (3.9 in): Days with 10 cm or more snowfall8719816
25 cm (9.8 in): Days with 25 cm or more snowfall2119802

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1976.

Download the Data

  • Data for Henry 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 (2025-12-31).