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

Hidden Valley Threshold Days by Year

5 fixed thresholds counted per year at Hidden Valley (ASN00014636): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hidden Valley Thresholds

  • Hidden Valley: days with 10 mm (0.39 in) or more of precipitation in 21 years, most in 1984 with 35.
  • Hidden Valley: days with 25 mm (0.98 in) or more of precipitation in 21 years, most in 1984 with 16.
  • Hidden Valley: days with 50 mm (1.97 in) or more of precipitation in 17 years, most in 1982 with 5.
  • Hidden Valley: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 2003 with 2.
  • 5 fixed thresholds have at least one qualifying day at Hidden Valley.
21 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hidden Valley Days per year at Hidden Valley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1984. 0102030401966: 201967: 251969: 221970: 141971: 101973: 171974: 281975: 151976: 271977: 251979: 171980: 191982: 271983: 171984: 351989: 141990: 131991: 212002: 152003: 202007: 171966197019741977198219892002
Days per year at Hidden Valley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1984.
Days with 10 mm (0.39 in) or more of precipitation per year at Hidden Valley
YearDaysDecade average
19662022.3
19672522.3
19692222.3
19701419.1
19711019.1
19731719.1
19742819.1
19751519.1
19762719.1
19772519.1
19791719.1
19801922.4
19822722.4
19831722.4
19843522.4
19891422.4
19901317
19912117
20021517.3
20032017.3
20071717.3
First to last qualifying date each year at Hidden Valley For each year, a bar from the first to the last day at Hidden Valley meeting 10 mm (0.39 in). 1966: 5 January 1966 to 31 December 19661967: 21 January 1967 to 29 December 19671969: 9 January 1969 to 22 December 19691970: 13 January 1970 to 18 December 19701971: 4 February 1971 to 29 December 19711973: 8 January 1973 to 30 December 19731974: 2 January 1974 to 24 December 19741975: 24 January 1975 to 10 December 19751976: 2 January 1976 to 11 December 19761977: 2 January 1977 to 18 December 19771979: 1 January 1979 to 26 November 19791980: 3 January 1980 to 31 December 19801982: 6 January 1982 to 24 December 19821983: 2 January 1983 to 5 December 19831984: 2 January 1984 to 20 December 19841989: 20 January 1989 to 2 December 19891990: 9 January 1990 to 23 December 19901991: 5 January 1991 to 8 December 19912002: 1 January 2002 to 26 December 20022003: 14 January 2003 to 29 December 20032007: 11 January 2007 to 10 December 20071966197019741977198219892002JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hidden Valley meeting 10 mm (0.39 in).
First to last qualifying date each year at Hidden Valley
YearFirst dateLast date
19661966-01-051966-12-31
19671967-01-211967-12-29
19691969-01-091969-12-22
19701970-01-131970-12-18
19711971-02-041971-12-29
19731973-01-081973-12-30
19741974-01-021974-12-24
19751975-01-241975-12-10
19761976-01-021976-12-11
19771977-01-021977-12-18
19791979-01-011979-11-26
19801980-01-031980-12-31
19821982-01-061982-12-24
19831983-01-021983-12-05
19841984-01-021984-12-20
19891989-01-201989-12-02
19901990-01-091990-12-23
19911991-01-051991-12-08
20022002-01-012002-12-26
20032003-01-142003-12-29
20072007-01-112007-12-10

Every Fixed Threshold

Fixed thresholds at Hidden Valley
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2135198417
25 mm (0.98 in): Days with 25 mm or more rain211619845
50 mm (1.97 in): Days with 50 mm or more rain17519823
100 mm (3.94 in): Days with 100 mm or more rain6220032
200 mm (7.87 in): Days with 200 mm or more rain1119741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1966.

Download the Data

  • Data for Hidden Valley 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).