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Built 2026-10-19 (19 October 2026)

McCarthy 3 SW Threshold Days by Year (USC00505757)

12 fixed thresholds counted per year at McCarthy 3 SW (USC00505757): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for McCarthy 3 SW Thresholds

  • McCarthy 3 SW: days with 10 mm (0.39 in) or more of precipitation in 20 years, most in 1985 with 17.
  • McCarthy 3 SW: days with a maximum temperature at or below 0 C (32 F) in 19 years, most in 1996 with 140.
  • McCarthy 3 SW: days with 10 cm (3.9 in) or more of snowfall in 19 years, most in 1988 with 7.
  • McCarthy 3 SW: nights with a minimum temperature at or below 0 C (32 F) in 18 years, most in 1996 with 269.
  • 12 fixed thresholds have at least one qualifying day at McCarthy 3 SW.
3 years with a qualifying day
Days at or above 30 C (86 F) per year at McCarthy 3 SW Days per year at McCarthy 3 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 2004. 024681991: 21993: 22004: 8199119932004
Days per year at McCarthy 3 SW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 8 in 2004.
Days at or above 30 C (86 F) per year at McCarthy 3 SW
YearDaysDecade average
199122
199322
200488
First to last qualifying date each year at McCarthy 3 SW For each year, a bar from the first to the last day at McCarthy 3 SW meeting 30 C (86 F). 1991: 21 June 1991 to 22 June 19911993: 15 July 1993 to 16 July 19932004: 19 June 2004 to 26 June 2004199119932004JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at McCarthy 3 SW meeting 30 C (86 F).
First to last qualifying date each year at McCarthy 3 SW
YearFirst dateLast date
19911991-06-211991-06-22
19931993-07-151993-07-16
20042004-06-192004-06-26

Every Fixed Threshold

Fixed thresholds at McCarthy 3 SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3820048
0 C (32 F): Ice days (max191401996102
0 C (32 F): Frost days (min182691996232
-10 C (14 F): Days with min181601996114
-20 C (-4 F): Days with min1899199666
-30 C (-22 F): Days with min1848199625
-40 C (-40 F): Days with min171819963
10 mm (0.39 in): Days with 10 mm or more rain201719858
25 mm (0.98 in): Days with 25 mm or more rain15520003
50 mm (1.97 in): Days with 50 mm or more rain2119851
10 cm (3.9 in): Days with 10 cm or more snowfall19719883
25 cm (9.8 in): Days with 25 cm or more snowfall6220051

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1991.

Download the Data

  • Data for McCarthy 3 SW 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).