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

Rahway Threshold Days by Year (USC00287393)

17 fixed thresholds counted per year at Rahway (USC00287393): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rahway Thresholds

  • Rahway: days with 10 mm (0.39 in) or more of precipitation in 55 years, most in 1975 with 51.
  • Rahway: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1983 with 23.
  • Rahway: days with 50 mm (1.97 in) or more of precipitation in 47 years, most in 1975 with 5.
  • Rahway: days with 10 cm (3.9 in) or more of snowfall in 24 years, most in 1961 with 6.
  • 17 fixed thresholds have at least one qualifying day at Rahway.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at Rahway Days per year at Rahway with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 1987. 02040601987: 601988: 581992: 321993: 191987198819921993
Days per year at Rahway with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 60 in 1987.
Days at or above 30 C (86 F) per year at Rahway
YearDaysDecade average
19876059
19885859
19923225.5
19931925.5
First to last qualifying date each year at Rahway For each year, a bar from the first to the last day at Rahway meeting 30 C (86 F). 1987: 22 April 1987 to 15 September 19871988: 14 May 1988 to 4 October 19881992: 16 May 1992 to 11 September 19921993: 10 May 1993 to 4 September 19931987198819921993JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rahway meeting 30 C (86 F).
First to last qualifying date each year at Rahway
YearFirst dateLast date
19871987-04-221987-09-15
19881988-05-141988-10-04
19921992-05-161992-09-11
19931993-05-101993-09-04

Every Fixed Threshold

Fixed thresholds at Rahway
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days460198719
35 C (95 F): Days42019881
90 F (32.2 C): Days44519887
100 F (37.8 C): Days2619886
0 C (32 F): Ice days (max424199324
0 C (32 F): Frost days (min498198768
-10 C (14 F): Days with min41819882
-20 C (-4 F): Days with min1119881
20 C (68 F): Tropical nights (min443198825
25 C (77 F): Days with min3319872
10 mm (0.39 in): Days with 10 mm or more rain5551197532
25 mm (0.98 in): Days with 25 mm or more rain552319839
50 mm (1.97 in): Days with 50 mm or more rain47519753
100 mm (3.94 in): Days with 100 mm or more rain16119422
10 cm (3.9 in): Days with 10 cm or more snowfall24619613
25 cm (9.8 in): Days with 25 cm or more snowfall10219601
50 cm (19.7 in): Days with 50 cm or more snowfall1119831

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1987.

Download the Data

  • Data for Rahway 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).