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Built 2026-10-19 (19 October 2026)

Blackddck Rs Threshold Days by Year (USC00210803)

13 fixed thresholds counted per year at Blackddck Rs (USC00210803): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Blackddck Rs Thresholds

  • Blackddck Rs: days with 10 mm (0.39 in) or more of precipitation in 5 years, most in 1908 with 27.
  • Blackddck Rs: days with 25 mm (0.98 in) or more of precipitation in 5 years, most in 1950 with 8.
  • Blackddck Rs: days with 10 cm (3.9 in) or more of snowfall in 4 years, most in 1951 with 5.
  • Blackddck Rs: days with 50 mm (1.97 in) or more of precipitation in 3 years, most in 1950 with 3.
  • 13 fixed thresholds have at least one qualifying day at Blackddck Rs.
5 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Blackddck Rs Days per year at Blackddck Rs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1908. 01020301908: 271949: 281950: 221951: 171952: 1219081949195019511952
Days per year at Blackddck Rs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1908.
Days with 10 mm (0.39 in) or more of precipitation per year at Blackddck Rs
YearDaysDecade average
19082727
19492828
19502217
19511717
19521217
First to last qualifying date each year at Blackddck Rs For each year, a bar from the first to the last day at Blackddck Rs meeting 10 mm (0.39 in). 1908: 12 February 1908 to 29 December 19081949: 25 March 1949 to 11 December 19491950: 24 January 1950 to 8 November 19501951: 18 May 1951 to 4 December 19511952: 27 May 1952 to 31 August 195219081949195019511952JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Blackddck Rs meeting 10 mm (0.39 in).
First to last qualifying date each year at Blackddck Rs
YearFirst dateLast date
19081908-02-121908-12-29
19491949-03-251949-12-11
19501950-01-241950-11-08
19511951-05-181951-12-04
19521952-05-271952-08-31

Every Fixed Threshold

Fixed thresholds at Blackddck Rs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days214190811
35 C (95 F): Days1119451
90 F (32.2 C): Days2419454
0 C (32 F): Ice days (max298194598
0 C (32 F): Frost days (min21961908196
-10 C (14 F): Days with min2115190887
-20 C (-4 F): Days with min245190841
-30 C (-22 F): Days with min210194510
20 C (68 F): Tropical nights (min1119451
10 mm (0.39 in): Days with 10 mm or more rain527190812
25 mm (0.98 in): Days with 25 mm or more rain5819505
50 mm (1.97 in): Days with 50 mm or more rain3319503
10 cm (3.9 in): Days with 10 cm or more snowfall4519511

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1908.

Download the Data

  • Data for Blackddck Rs 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).