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

Idyllwild Threshold Days by Year (USC00044208)

10 fixed thresholds counted per year at Idyllwild (USC00044208): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Idyllwild Thresholds

  • Idyllwild: days with 10 mm (0.39 in) or more of precipitation in 7 years, most in 1909 with 33.
  • Idyllwild: days with 25 mm (0.98 in) or more of precipitation in 7 years, most in 1905 with 18.
  • Idyllwild: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1909 with 5.
  • Idyllwild: nights with a minimum temperature at or below 0 C (32 F) in 5 years, most in 1909 with 136.
  • 10 fixed thresholds have at least one qualifying day at Idyllwild.
4 years with a qualifying day
Days at or above 30 C (86 F) per year at Idyllwild Days per year at Idyllwild with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 91 in 1910. 02550751001905: 421907: 171909: 371910: 911905190719091910
Days per year at Idyllwild with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 91 in 1910.
Days at or above 30 C (86 F) per year at Idyllwild
YearDaysDecade average
19054232
19071732
19093732
19109191
First to last qualifying date each year at Idyllwild For each year, a bar from the first to the last day at Idyllwild meeting 30 C (86 F). 1905: 2 July 1905 to 21 September 19051907: 27 June 1907 to 11 September 19071909: 31 May 1909 to 13 August 19091910: 23 April 1910 to 9 October 19101905190719091910JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Idyllwild meeting 30 C (86 F).
First to last qualifying date each year at Idyllwild
YearFirst dateLast date
19051905-07-021905-09-21
19071907-06-271907-09-11
19091909-05-311909-08-13
19101910-04-231910-10-09

Every Fixed Threshold

Fixed thresholds at Idyllwild
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days491191091
35 C (95 F): Days211191011
90 F (32.2 C): Days458191058
0 C (32 F): Ice days (max3219071
0 C (32 F): Frost days (min51361909127
-10 C (14 F): Days with min5519093
20 C (68 F): Tropical nights (min1119071
10 mm (0.39 in): Days with 10 mm or more rain733190911
25 mm (0.98 in): Days with 25 mm or more rain71819052
50 mm (1.97 in): Days with 50 mm or more rain7519092

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1905.

Download the Data

  • Data for Idyllwild 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).