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

Dunlap Threshold Days by Year (USC00402657)

13 fixed thresholds counted per year at Dunlap (USC00402657): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dunlap Thresholds

  • Dunlap: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1950 with 58.
  • Dunlap: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1957 with 26.
  • Dunlap: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1936 with 6.
  • Dunlap: days with 100 mm (3.94 in) or more of precipitation in 9 years, most in 1910 with 1.
  • 13 fixed thresholds have at least one qualifying day at Dunlap.
5 years with a qualifying day
Days at or above 30 C (86 F) per year at Dunlap Days per year at Dunlap with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 135 in 1911. 0501001501910: 1111911: 1351912: 971914: 991917: 8319101911191219141917
Days per year at Dunlap with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 135 in 1911.
Days at or above 30 C (86 F) per year at Dunlap
YearDaysDecade average
1910111105
1911135105
191297105
191499105
191783105
First to last qualifying date each year at Dunlap For each year, a bar from the first to the last day at Dunlap meeting 30 C (86 F). 1910: 23 March 1910 to 19 October 19101911: 29 April 1911 to 15 October 19111912: 9 May 1912 to 12 October 19121914: 23 April 1914 to 9 October 19141917: 17 April 1917 to 21 September 191719101911191219141917JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Dunlap meeting 30 C (86 F).
First to last qualifying date each year at Dunlap
YearFirst dateLast date
19101910-03-231910-10-19
19111911-04-291911-10-15
19121912-05-091912-10-12
19141914-04-231914-10-09
19171917-04-171917-09-21

Every Fixed Threshold

Fixed thresholds at Dunlap
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days5135191183
35 C (95 F): Days53619143
40 C (104 F): Days1319143
90 F (32.2 C): Days596191129
100 F (37.8 C): Days218191418
0 C (32 F): Ice days (max3819178
0 C (32 F): Frost days (min597191085
-10 C (14 F): Days with min516191716
20 C (68 F): Tropical nights (min536191018
10 mm (0.39 in): Days with 10 mm or more rain3058195049
25 mm (0.98 in): Days with 25 mm or more rain3026195722
50 mm (1.97 in): Days with 50 mm or more rain28619366
100 mm (3.94 in): Days with 100 mm or more rain9119101

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

  • Data for Dunlap 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).