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Built 2026-10-19 (19 October 2026)

Skagit Pwr Plt Threshold Days by Year (USC00457690)

16 fixed thresholds counted per year at Skagit Pwr Plt (USC00457690): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Skagit Pwr Plt Thresholds

  • Skagit Pwr Plt: nights with a minimum temperature at or below 0 C (32 F) in 36 years, most in 1911 with 128.
  • Skagit Pwr Plt: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1953 with 85.
  • Skagit Pwr Plt: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1933 with 42.
  • Skagit Pwr Plt: days with 50 mm (1.97 in) or more of precipitation in 33 years, most in 1933 with 10.
  • 16 fixed thresholds have at least one qualifying day at Skagit Pwr Plt.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Skagit Pwr Plt Days per year at Skagit Pwr Plt with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 1958. 02040601911: 341912: 321913: 251926: 291927: 311928: 221929: 201930: 241931: 241932: 291933: 361934: 291935: 251938: 361939: 231941: 231942: 311943: 201944: 271948: 181949: 181950: 251951: 291952: 271953: 181954: 21956: 161957: 91958: 461911192619291932193519411944195019531957
Days per year at Skagit Pwr Plt with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 46 in 1958.
Days at or above 30 C (86 F) per year at Skagit Pwr Plt
YearDaysDecade average
19113430.3
19123230.3
19132530.3
19262925.5
19273125.5
19282225.5
19292025.5
19302428.3
19312428.3
19322928.3
19333628.3
19342928.3
19352528.3
19383628.3
19392328.3
19412322.8
19423122.8
19432022.8
19442722.8
19481822.8
19491822.8
19502521.5
19512921.5
19522721.5
19531821.5
1954221.5
19561621.5
1957921.5
19584621.5
First to last qualifying date each year at Skagit Pwr Plt For each year, a bar from the first to the last day at Skagit Pwr Plt meeting 30 C (86 F). 1911: 30 May 1911 to 1 September 19111912: 7 May 1912 to 23 August 19121913: 1 June 1913 to 29 August 19131926: 14 April 1926 to 3 September 19261927: 5 June 1927 to 20 September 19271928: 19 May 1928 to 3 September 19281929: 19 May 1929 to 16 September 19291930: 6 June 1930 to 3 September 19301931: 11 May 1931 to 29 August 19311932: 9 June 1932 to 10 September 19321933: 3 June 1933 to 10 September 19331934: 19 April 1934 to 4 September 19341935: 5 June 1935 to 8 September 19351938: 21 May 1938 to 17 September 19381939: 13 May 1939 to 9 September 19391941: 11 May 1941 to 19 August 19411942: 29 June 1942 to 26 September 19421943: 8 June 1943 to 23 September 19431944: 3 May 1944 to 11 September 19441948: 26 May 1948 to 11 September 19481949: 9 May 1949 to 8 September 19491950: 4 June 1950 to 22 September 19501951: 23 May 1951 to 18 September 19511952: 17 May 1952 to 25 September 19521953: 6 May 1953 to 12 September 19531954: 7 July 1954 to 14 July 19541956: 17 May 1956 to 7 September 19561957: 30 May 1957 to 24 September 19571958: 18 May 1958 to 8 September 195819111927193119351942194919531958JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Skagit Pwr Plt meeting 30 C (86 F).
First to last qualifying date each year at Skagit Pwr Plt
YearFirst dateLast date
19111911-05-301911-09-01
19121912-05-071912-08-23
19131913-06-011913-08-29
19261926-04-141926-09-03
19271927-06-051927-09-20
19281928-05-191928-09-03
19291929-05-191929-09-16
19301930-06-061930-09-03
19311931-05-111931-08-29
19321932-06-091932-09-10
19331933-06-031933-09-10
19341934-04-191934-09-04
19351935-06-051935-09-08
19381938-05-211938-09-17
19391939-05-131939-09-09
19411941-05-111941-08-19
19421942-06-291942-09-26
19431943-06-081943-09-23
19441944-05-031944-09-11
19481948-05-261948-09-11
19491949-05-091949-09-08
19501950-06-041950-09-22
19511951-05-231951-09-18
19521952-05-171952-09-25
19531953-05-061953-09-12
19541954-07-071954-07-14
19561956-05-171956-09-07
19571957-05-301957-09-24
19581958-05-181958-09-08

Every Fixed Threshold

Fixed thresholds at Skagit Pwr Plt
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2946195846
35 C (95 F): Days2611193311
40 C (104 F): Days10319411
90 F (32.2 C): Days2829195829
100 F (37.8 C): Days18619111
0 C (32 F): Ice days (max282419503
0 C (32 F): Frost days (min36128191120
-10 C (14 F): Days with min231319506
20 C (68 F): Tropical nights (min2219582
10 mm (0.39 in): Days with 10 mm or more rain3385195371
25 mm (0.98 in): Days with 25 mm or more rain3342193326
50 mm (1.97 in): Days with 50 mm or more rain331019333
100 mm (3.94 in): Days with 100 mm or more rain6219491
10 cm (3.9 in): Days with 10 cm or more snowfall261419492
25 cm (9.8 in): Days with 25 cm or more snowfall17419512
50 cm (19.7 in): Days with 50 cm or more snowfall5219351

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 Skagit Pwr Plt 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).