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Built 2026-10-19 (19 October 2026)

Phelps Threshold Days by Year (USC00476518)

16 fixed thresholds counted per year at Phelps (USC00476518): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Phelps Thresholds

  • Phelps: days with 10 mm (0.39 in) or more of precipitation in 111 years, most in 1996 with 40.
  • Phelps: days with 25 mm (0.98 in) or more of precipitation in 111 years, most in 1938 with 12.
  • Phelps: days with 10 cm (3.9 in) or more of snowfall in 80 years, most in 2014 with 13.
  • Phelps: days with 50 mm (1.97 in) or more of precipitation in 55 years, most in 1972 with 5.
  • 16 fixed thresholds have at least one qualifying day at Phelps.
7 years with a qualifying day
Days at or above 30 C (86 F) per year at Phelps Days per year at Phelps with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 1916. 051015201911: 181912: 141913: 101914: 61915: 21916: 201917: 101911191219131914191519161917
Days per year at Phelps with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 1916.
Days at or above 30 C (86 F) per year at Phelps
YearDaysDecade average
19111811.4
19121411.4
19131011.4
1914611.4
1915211.4
19162011.4
19171011.4
First to last qualifying date each year at Phelps For each year, a bar from the first to the last day at Phelps meeting 30 C (86 F). 1911: 18 May 1911 to 15 August 19111912: 24 June 1912 to 9 September 19121913: 13 June 1913 to 6 September 19131914: 8 June 1914 to 11 August 19141915: 26 June 1915 to 19 August 19151916: 5 July 1916 to 19 August 19161917: 21 July 1917 to 31 July 19171911191219131914191519161917JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Phelps meeting 30 C (86 F).
First to last qualifying date each year at Phelps
YearFirst dateLast date
19111911-05-181911-08-15
19121912-06-241912-09-09
19131913-06-131913-09-06
19141914-06-081914-08-11
19151915-06-261915-08-19
19161916-07-051916-08-19
19171917-07-211917-07-31

Every Fixed Threshold

Fixed thresholds at Phelps
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days720191610
35 C (95 F): Days2419111
90 F (32.2 C): Days61119116
100 F (37.8 C): Days1119111
0 C (32 F): Ice days (max71051917105
0 C (32 F): Frost days (min42061916206
-10 C (14 F): Days with min41111916111
-20 C (-4 F): Days with min450191650
-30 C (-22 F): Days with min415191615
20 C (68 F): Tropical nights (min3319163
10 mm (0.39 in): Days with 10 mm or more rain11140199610
25 mm (0.98 in): Days with 25 mm or more rain1111219381
50 mm (1.97 in): Days with 50 mm or more rain55519724
100 mm (3.94 in): Days with 100 mm or more rain10119251
10 cm (3.9 in): Days with 10 cm or more snowfall801320145
25 cm (9.8 in): Days with 25 cm or more snowfall22219931

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1911.

Download the Data

  • Data for Phelps 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 (2026-10-12).