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

Oroville Rs Threshold Days by Year (USC00046528)

11 fixed thresholds counted per year at Oroville Rs (USC00046528): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Oroville Rs Thresholds

  • Oroville Rs: days with 10 mm (0.39 in) or more of precipitation in 2 years, most in 1950 with 31.
  • Oroville Rs: days with 25 mm (0.98 in) or more of precipitation in 2 years, most in 1950 with 13.
  • Oroville Rs: days with 50 mm (1.97 in) or more of precipitation in 2 years, most in 1950 with 2.
  • Oroville Rs: days with a maximum temperature at or above 30 C (86 F) in 1 years, most in 1977 with 92.
  • 11 fixed thresholds have at least one qualifying day at Oroville Rs.
2 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Oroville Rs Days per year at Oroville Rs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1950. 0102030401950: 311977: 1019501977
Days per year at Oroville Rs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Oroville Rs
YearDaysDecade average
19503131
19771010
First to last qualifying date each year at Oroville Rs For each year, a bar from the first to the last day at Oroville Rs meeting 10 mm (0.39 in). 1950: 8 January 1950 to 14 December 19501977: 21 February 1977 to 23 December 197719501977JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Oroville Rs meeting 10 mm (0.39 in).
First to last qualifying date each year at Oroville Rs
YearFirst dateLast date
19501950-01-081950-12-14
19771977-02-211977-12-23

Every Fixed Threshold

Fixed thresholds at Oroville Rs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days192197792
35 C (95 F): Days156197756
40 C (104 F): Days110197710
90 F (32.2 C): Days177197777
100 F (37.8 C): Days130197730
0 C (32 F): Frost days (min116197716
20 C (68 F): Tropical nights (min121197721
25 C (77 F): Days with min1219772
10 mm (0.39 in): Days with 10 mm or more rain231195010
25 mm (0.98 in): Days with 25 mm or more rain21319502
50 mm (1.97 in): Days with 50 mm or more rain2219501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1977.

Download the Data

  • Data for Oroville Rs 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).