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Built 2026-10-19 (19 October 2026)

Crater Lake Nps HQ Threshold Days by Year (USC00351946)

16 fixed thresholds counted per year at Crater Lake Nps HQ (USC00351946): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Crater Lake Nps HQ Thresholds

  • Crater Lake Nps HQ: days with a maximum temperature at or below 0 C (32 F) in 93 years, most in 1927 with 123.
  • Crater Lake Nps HQ: days with 10 mm (0.39 in) or more of precipitation in 93 years, most in 1995 with 87.
  • Crater Lake Nps HQ: days with 25 mm (0.98 in) or more of precipitation in 93 years, most in 1951 with 37.
  • Crater Lake Nps HQ: nights with a minimum temperature at or below 0 C (32 F) in 91 years, most in 1922 with 279.
  • 16 fixed thresholds have at least one qualifying day at Crater Lake Nps HQ.
33 years with a qualifying day
Days at or above 30 C (86 F) per year at Crater Lake Nps HQ Days per year at Crater Lake Nps HQ with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 28 in 1922. 01020301920: 111921: 31922: 281924: 81927: 11931: 21932: 11933: 31935: 21936: 11939: 21953: 11955: 11956: 21961: 11962: 11967: 11968: 11972: 21977: 21981: 61988: 21992: 11994: 12001: 12002: 32003: 22006: 12007: 22008: 22015: 12021: 22022: 2192019271935195519671981200120072022
Days per year at Crater Lake Nps HQ with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 28 in 1922.
Days at or above 30 C (86 F) per year at Crater Lake Nps HQ
YearDaysDecade average
19201110.2
1921310.2
19222810.2
1924810.2
1927110.2
193121.8
193211.8
193331.8
193521.8
193611.8
193921.8
195311.3
195511.3
195621.3
196111
196211
196711
196811
197222
197722
198164
198824
199211
199411
200111.8
200231.8
200321.8
200611.8
200721.8
200821.8
201511
202122
202222
First to last qualifying date each year at Crater Lake Nps HQ For each year, a bar from the first to the last day at Crater Lake Nps HQ meeting 30 C (86 F). 1920: 1 July 1920 to 24 August 19201921: 22 July 1921 to 7 August 19211922: 19 June 1922 to 11 September 19221924: 1 June 1924 to 3 July 19241927: 24 July 1927 to 24 July 19271931: 18 July 1931 to 19 July 19311932: 15 September 1932 to 15 September 19321933: 13 August 1933 to 15 August 19331935: 13 July 1935 to 14 July 19351936: 21 July 1936 to 21 July 19361939: 26 July 1939 to 27 July 19391953: 14 July 1953 to 14 July 19531955: 4 September 1955 to 4 September 19551956: 17 July 1956 to 19 July 19561961: 4 August 1961 to 4 August 19611962: 3 August 1962 to 3 August 19621967: 20 August 1967 to 20 August 19671968: 29 July 1968 to 29 July 19681972: 7 August 1972 to 8 August 19721977: 17 August 1977 to 18 August 19771981: 7 August 1981 to 13 August 19811988: 3 September 1988 to 4 September 19881992: 12 August 1992 to 12 August 19921994: 21 July 1994 to 21 July 19942001: 9 August 2001 to 9 August 20012002: 11 July 2002 to 13 July 20022003: 30 July 2003 to 31 July 20032006: 23 July 2006 to 23 July 20062007: 11 July 2007 to 2 August 20072008: 16 August 2008 to 17 August 20082015: 27 June 2015 to 27 June 20152021: 28 June 2021 to 29 June 20212022: 30 July 2022 to 31 July 20221920193119391962198120022015JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Crater Lake Nps HQ meeting 30 C (86 F).
First to last qualifying date each year at Crater Lake Nps HQ
YearFirst dateLast date
19201920-07-011920-08-24
19211921-07-221921-08-07
19221922-06-191922-09-11
19241924-06-011924-07-03
19271927-07-241927-07-24
19311931-07-181931-07-19
19321932-09-151932-09-15
19331933-08-131933-08-15
19351935-07-131935-07-14
19361936-07-211936-07-21
19391939-07-261939-07-27
19531953-07-141953-07-14
19551955-09-041955-09-04
19561956-07-171956-07-19
19611961-08-041961-08-04
19621962-08-031962-08-03
19671967-08-201967-08-20
19681968-07-291968-07-29
19721972-08-071972-08-08
19771977-08-171977-08-18
19811981-08-071981-08-13
19881988-09-031988-09-04
19921992-08-121992-08-12
19941994-07-211994-07-21
20012001-08-092001-08-09
20022002-07-112002-07-13
20032003-07-302003-07-31
20062006-07-232006-07-23
20072007-07-112007-08-02
20082008-08-162008-08-17
20152015-06-272015-06-27
20212021-06-282021-06-29
20222022-07-302022-07-31

Every Fixed Threshold

Fixed thresholds at Crater Lake Nps HQ
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days332819222
35 C (95 F): Days1419224
90 F (32.2 C): Days61819222
100 F (37.8 C): Days1119221
0 C (32 F): Ice days (max93123192718
0 C (32 F): Frost days (min912791922125
-10 C (14 F): Days with min917619223
-20 C (-4 F): Days with min36919221
10 mm (0.39 in): Days with 10 mm or more rain9387199523
25 mm (0.98 in): Days with 25 mm or more rain933719517
50 mm (1.97 in): Days with 50 mm or more rain82919642
100 mm (3.94 in): Days with 100 mm or more rain18219501
200 mm (7.87 in): Days with 200 mm or more rain1119571
10 cm (3.9 in): Days with 10 cm or more snowfall9079195012
25 cm (9.8 in): Days with 25 cm or more snowfall903819506
50 cm (19.7 in): Days with 50 cm or more snowfall59819501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

  • Data for Crater Lake Nps HQ 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 (2026-10-17).