Built 2026-10-19 (19 October 2026)

West Harpersfield Threshold Days by Year (USC00309205)

13 fixed thresholds counted per year at West Harpersfield (USC00309205): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for West Harpersfield Thresholds

  • West Harpersfield: days with a maximum temperature at or above 30 C (86 F) in 12 years, most in 1895 with 38.
  • West Harpersfield: days with a maximum temperature at or below 0 C (32 F) in 12 years, most in 1904 with 89.
  • West Harpersfield: nights with a minimum temperature at or below 0 C (32 F) in 11 years, most in 1895 with 185.
  • West Harpersfield: nights with a minimum temperature at or below -10 C (14 F) in 11 years, most in 1904 with 84.
  • 13 fixed thresholds have at least one qualifying day at West Harpersfield.
12 years with a qualifying day
Days at or above 30 C (86 F) per year at West Harpersfield Days per year at West Harpersfield with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 1895. 0102030401893: 191894: 251895: 381896: 301897: 141898: 331899: 241900: 331902: 21903: 51904: 71905: 8189318951897189919021904
Days per year at West Harpersfield with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 38 in 1895.
Days at or above 30 C (86 F) per year at West Harpersfield
YearDaysDecade average
18931926.1
18942526.1
18953826.1
18963026.1
18971426.1
18983326.1
18992426.1
19003311
1902211
1903511
1904711
1905811
First to last qualifying date each year at West Harpersfield For each year, a bar from the first to the last day at West Harpersfield meeting 30 C (86 F). 1893: 23 May 1893 to 27 August 18931894: 16 June 1894 to 10 September 18941895: 4 May 1895 to 24 September 18951896: 10 May 1896 to 12 September 18961897: 24 June 1897 to 10 September 18971898: 7 June 1898 to 4 September 18981899: 1 May 1899 to 21 August 18991900: 14 May 1900 to 11 September 19001902: 14 July 1902 to 1 September 19021903: 18 May 1903 to 14 September 19031904: 25 May 1904 to 19 July 19041905: 15 June 1905 to 19 July 1905189318951897189919021904JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at West Harpersfield meeting 30 C (86 F).
First to last qualifying date each year at West Harpersfield
YearFirst dateLast date
18931893-05-231893-08-27
18941894-06-161894-09-10
18951895-05-041895-09-24
18961896-05-101896-09-12
18971897-06-241897-09-10
18981898-06-071898-09-04
18991899-05-011899-08-21
19001900-05-141900-09-11
19021902-07-141902-09-01
19031903-05-181903-09-14
19041904-05-251904-07-19
19051905-06-151905-07-19

Every Fixed Threshold

Fixed thresholds at West Harpersfield
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days123818958
35 C (95 F): Days4318971
90 F (32.2 C): Days101319001
0 C (32 F): Ice days (max1289190459
0 C (32 F): Frost days (min111851895175
-10 C (14 F): Days with min1184190469
-20 C (-4 F): Days with min1124190418
-30 C (-22 F): Days with min4319041
20 C (68 F): Tropical nights (min5519055
10 mm (0.39 in): Days with 10 mm or more rain1041190229
25 mm (0.98 in): Days with 25 mm or more rain101418979
50 mm (1.97 in): Days with 50 mm or more rain7418972
100 mm (3.94 in): Days with 100 mm or more rain1119031

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

  • Data for West Harpersfield 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).