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

Rocklands Threshold Days by Year

4 fixed thresholds counted per year at Rocklands (ASN00037115): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rocklands Thresholds

  • Rocklands: days with 10 mm (0.39 in) or more of precipitation in 16 years, most in 2000 with 30.
  • Rocklands: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 2000 with 16.
  • Rocklands: days with 50 mm (1.97 in) or more of precipitation in 11 years, most in 2000 with 5.
  • Rocklands: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 2023 with 2.
  • 4 fixed thresholds have at least one qualifying day at Rocklands.
16 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Rocklands Days per year at Rocklands with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 2000. 01020301988: 51989: 71990: 41991: 181996: 151997: 151998: 161999: 122000: 302003: 142007: 162021: 152022: 222023: 152024: 272025: 2119881990199619982000200720222024
Days per year at Rocklands with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 2000.
Days with 10 mm (0.39 in) or more of precipitation per year at Rocklands
YearDaysDecade average
198856
198976
1990413.3
19911813.3
19961513.3
19971513.3
19981613.3
19991213.3
20003020
20031420
20071620
20211520
20222220
20231520
20242720
20252120
First to last qualifying date each year at Rocklands For each year, a bar from the first to the last day at Rocklands meeting 10 mm (0.39 in). 1988: 6 February 1988 to 26 December 19881989: 16 February 1989 to 30 November 19891990: 14 January 1990 to 8 December 19901991: 9 January 1991 to 10 December 19911996: 14 January 1996 to 30 December 19961997: 8 February 1997 to 30 December 19971998: 25 January 1998 to 31 December 19981999: 4 February 1999 to 23 December 19992000: 7 February 2000 to 27 December 20002003: 1 January 2003 to 29 December 20032007: 12 January 2007 to 22 December 20072021: 24 January 2021 to 7 December 20212022: 19 January 2022 to 31 December 20222023: 2 January 2023 to 2 December 20232024: 3 January 2024 to 29 November 20242025: 9 January 2025 to 27 December 202519881990199619982000200720222024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rocklands meeting 10 mm (0.39 in).
First to last qualifying date each year at Rocklands
YearFirst dateLast date
19881988-02-061988-12-26
19891989-02-161989-11-30
19901990-01-141990-12-08
19911991-01-091991-12-10
19961996-01-141996-12-30
19971997-02-081997-12-30
19981998-01-251998-12-31
19991999-02-041999-12-23
20002000-02-072000-12-27
20032003-01-012003-12-29
20072007-01-122007-12-22
20212021-01-242021-12-07
20222022-01-192022-12-31
20232023-01-022023-12-02
20242024-01-032024-11-29
20252025-01-092025-12-27

Every Fixed Threshold

Fixed thresholds at Rocklands
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1630200021
25 mm (0.98 in): Days with 25 mm or more rain1616200012
50 mm (1.97 in): Days with 50 mm or more rain11520004
100 mm (3.94 in): Days with 100 mm or more rain2220232

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1988.

Download the Data

  • Data for Rocklands 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).