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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Pololu Lookout 179.3 Threshold Days by Year

4 fixed thresholds counted per year at Pololu Lookout 179.3 (USC00518086): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Pololu Lookout 179.3 Thresholds

  • Pololu Lookout 179.3: days with 10 mm (0.39 in) or more of precipitation in 3 years, most in 1999 with 40.
  • Pololu Lookout 179.3: days with 25 mm (0.98 in) or more of precipitation in 3 years, most in 1999 with 15.
  • Pololu Lookout 179.3: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 1999 with 5.
  • Pololu Lookout 179.3: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 2000 with 1.
  • 4 fixed thresholds have at least one qualifying day at Pololu Lookout 179.3.
3 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Pololu Lookout 179.3 Days per year at Pololu Lookout 179.3 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1999. 0102030401999: 402000: 362001: 37199920002001
Days per year at Pololu Lookout 179.3 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1999.
Days with 10 mm (0.39 in) or more of precipitation per year at Pololu Lookout 179.3
YearDaysDecade average
19994040
20003636.5
20013736.5
First to last qualifying date each year at Pololu Lookout 179.3 For each year, a bar from the first to the last day at Pololu Lookout 179.3 meeting 10 mm (0.39 in). 1999: 2 January 1999 to 28 December 19992000: 10 January 2000 to 15 November 20002001: 13 January 2001 to 31 December 2001199920002001JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Pololu Lookout 179.3 meeting 10 mm (0.39 in).
First to last qualifying date each year at Pololu Lookout 179.3
YearFirst dateLast date
19991999-01-021999-12-28
20002000-01-102000-11-15
20012001-01-132001-12-31

Every Fixed Threshold

Fixed thresholds at Pololu Lookout 179.3
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain340199937
25 mm (0.98 in): Days with 25 mm or more rain31519998
50 mm (1.97 in): Days with 50 mm or more rain2519993
100 mm (3.94 in): Days with 100 mm or more rain1120001

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1999.

Download the Data

  • Data for Pololu Lookout 179.3 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).