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Built 2026-10-19 (19 October 2026)

Acton Rch Threshold Days by Year (USC00410040)

15 fixed thresholds counted per year at Acton Rch (USC00410040): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Acton Rch Thresholds

  • Acton Rch: days with 10 mm (0.39 in) or more of precipitation in 20 years, most in 2004 with 29.
  • Acton Rch: days with 25 mm (0.98 in) or more of precipitation in 20 years, most in 2004 with 15.
  • Acton Rch: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1996 with 4.
  • Acton Rch: days with a maximum temperature at or above 30 C (86 F) in 15 years, most in 2000 with 159.
  • 15 fixed thresholds have at least one qualifying day at Acton Rch.
15 years with a qualifying day
Days at or above 30 C (86 F) per year at Acton Rch Days per year at Acton Rch with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 159 in 2000. 0501001502001994: 1451995: 1401996: 1521997: 1311998: 1511999: 1442000: 1592001: 1272002: 1392003: 1302004: 942005: 1362006: 1572016: 1192017: 13419941996199820002002200420062017
Days per year at Acton Rch with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 159 in 2000.
Days at or above 30 C (86 F) per year at Acton Rch
YearDaysDecade average
1994145143.8
1995140143.8
1996152143.8
1997131143.8
1998151143.8
1999144143.8
2000159134.6
2001127134.6
2002139134.6
2003130134.6
200494134.6
2005136134.6
2006157134.6
2016119126.5
2017134126.5
First to last qualifying date each year at Acton Rch For each year, a bar from the first to the last day at Acton Rch meeting 30 C (86 F). 1994: 6 March 1994 to 23 October 19941995: 19 March 1995 to 14 October 19951996: 21 February 1996 to 21 November 19961997: 14 March 1997 to 10 October 19971998: 24 March 1998 to 5 October 19981999: 9 April 1999 to 17 October 19992000: 20 January 2000 to 6 October 20002001: 16 April 2001 to 25 October 20012002: 3 April 2002 to 7 October 20022003: 28 March 2003 to 24 October 20032004: 23 April 2004 to 21 October 20042005: 6 April 2005 to 6 November 20052006: 17 February 2006 to 10 November 20062016: 8 April 2016 to 20 October 20162017: 12 February 2017 to 10 October 201719941996199820002002200420062017JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Acton Rch meeting 30 C (86 F).
First to last qualifying date each year at Acton Rch
YearFirst dateLast date
19941994-03-061994-10-23
19951995-03-191995-10-14
19961996-02-211996-11-21
19971997-03-141997-10-10
19981998-03-241998-10-05
19991999-04-091999-10-17
20002000-01-202000-10-06
20012001-04-162001-10-25
20022002-04-032002-10-07
20032003-03-282003-10-24
20042004-04-232004-10-21
20052005-04-062005-11-06
20062006-02-172006-11-10
20162016-04-082016-10-20
20172017-02-122017-10-10

Every Fixed Threshold

Fixed thresholds at Acton Rch
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days151592000134
35 C (95 F): Days1579199627
40 C (104 F): Days9420031
90 F (32.2 C): Days15124200081
100 F (37.8 C): Days152819982
110 F (43.3 C): Days1120031
0 C (32 F): Ice days (max9419971
0 C (32 F): Frost days (min1169200238
-10 C (14 F): Days with min8520022
20 C (68 F): Tropical nights (min11116199885
25 C (77 F): Days with min102419981
10 mm (0.39 in): Days with 10 mm or more rain2029200414
25 mm (0.98 in): Days with 25 mm or more rain201520045
50 mm (1.97 in): Days with 50 mm or more rain18419963
100 mm (3.94 in): Days with 100 mm or more rain5119961

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1994.

Download the Data

  • Data for Acton Rch 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 (2026-10-17).