Built 2026-10-19 (19 October 2026)

Diamond 4 WNW Threshold Days by Year (USC00352305)

14 fixed thresholds counted per year at Diamond 4 WNW (USC00352305): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Diamond 4 WNW Thresholds

  • Diamond 4 WNW: days with 10 mm (0.39 in) or more of precipitation in 22 years, most in 1897 with 13.
  • Diamond 4 WNW: days with 10 cm (3.9 in) or more of snowfall in 8 years, most in 1951 with 5.
  • Diamond 4 WNW: days with a maximum temperature at or above 30 C (86 F) in 6 years, most in 1898 with 43.
  • Diamond 4 WNW: days with a maximum temperature at or above 35 C (95 F) in 6 years, most in 1893 with 7.
  • 14 fixed thresholds have at least one qualifying day at Diamond 4 WNW.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Diamond 4 WNW Days per year at Diamond 4 WNW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 43 in 1898. 02040601893: 341894: 341895: 291897: 301898: 431899: 20189318941895189718981899
Days per year at Diamond 4 WNW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 43 in 1898.
Days at or above 30 C (86 F) per year at Diamond 4 WNW
YearDaysDecade average
18933431.7
18943431.7
18952931.7
18973031.7
18984331.7
18992031.7
First to last qualifying date each year at Diamond 4 WNW For each year, a bar from the first to the last day at Diamond 4 WNW meeting 30 C (86 F). 1893: 1 July 1893 to 4 September 18931894: 1 June 1894 to 27 August 18941895: 21 June 1895 to 29 September 18951897: 29 May 1897 to 24 August 18971898: 25 April 1898 to 18 September 18981899: 16 June 1899 to 25 September 1899189318941895189718981899JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Diamond 4 WNW meeting 30 C (86 F).
First to last qualifying date each year at Diamond 4 WNW
YearFirst dateLast date
18931893-07-011893-09-04
18941894-06-011894-08-27
18951895-06-211895-09-29
18971897-05-291897-08-24
18981898-04-251898-09-18
18991899-06-161899-09-25

Every Fixed Threshold

Fixed thresholds at Diamond 4 WNW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days643189820
35 C (95 F): Days6718931
90 F (32.2 C): Days62318988
100 F (37.8 C): Days1118981
0 C (32 F): Ice days (max62318947
0 C (32 F): Frost days (min62361895206
-10 C (14 F): Days with min670189829
-20 C (-4 F): Days with min51418984
-30 C (-22 F): Days with min1118991
20 C (68 F): Tropical nights (min1118991
10 mm (0.39 in): Days with 10 mm or more rain221318973
25 mm (0.98 in): Days with 25 mm or more rain5118941
50 mm (1.97 in): Days with 50 mm or more rain1118941
10 cm (3.9 in): Days with 10 cm or more snowfall8519511

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 Diamond 4 WNW 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).