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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Astor Exp STN Threshold Days by Year

12 fixed thresholds counted per year at Astor Exp STN (USC00350318): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Astor Exp STN Thresholds

  • Astor Exp STN: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1950 with 97.
  • Astor Exp STN: days with 25 mm (0.98 in) or more of precipitation in 34 years, most in 1950 with 41.
  • Astor Exp STN: nights with a minimum temperature at or below 0 C (32 F) in 33 years, most in 1952 with 77.
  • Astor Exp STN: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1950 with 7.
  • 12 fixed thresholds have at least one qualifying day at Astor Exp STN.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Astor Exp STN Days per year at Astor Exp STN with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 1952. 024681938: 21940: 31941: 31942: 31943: 41944: 31946: 21947: 41949: 11950: 21951: 31952: 71953: 21955: 31956: 21957: 31958: 61959: 11960: 31961: 11963: 21964: 11966: 31967: 41968: 41970: 21972: 7193819421946195019531957196019641968
Days per year at Astor Exp STN with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 7 in 1952.
Days at or above 30 C (86 F) per year at Astor Exp STN
YearDaysDecade average
193822
194032.9
194132.9
194232.9
194342.9
194432.9
194622.9
194742.9
194912.9
195023.2
195133.2
195273.2
195323.2
195533.2
195623.2
195733.2
195863.2
195913.2
196032.6
196112.6
196322.6
196412.6
196632.6
196742.6
196842.6
197024.5
197274.5
First to last qualifying date each year at Astor Exp STN For each year, a bar from the first to the last day at Astor Exp STN meeting 30 C (86 F). 1938: 13 July 1938 to 14 July 19381940: 11 June 1940 to 17 August 19401941: 10 May 1941 to 11 June 19411942: 29 June 1942 to 13 August 19421943: 6 September 1943 to 23 September 19431944: 29 August 1944 to 4 September 19441946: 17 August 1946 to 18 August 19461947: 23 May 1947 to 22 September 19471949: 3 September 1949 to 3 September 19491950: 16 August 1950 to 21 September 19501951: 28 June 1951 to 13 September 19511952: 7 July 1952 to 6 October 19521953: 10 August 1953 to 10 September 19531955: 7 June 1955 to 4 September 19551956: 16 May 1956 to 19 July 19561957: 10 September 1957 to 22 September 19571958: 5 June 1958 to 7 September 19581959: 31 July 1959 to 31 July 19591960: 5 July 1960 to 9 September 19601961: 15 June 1961 to 15 June 19611963: 3 September 1963 to 8 September 19631964: 24 August 1964 to 24 August 19641966: 15 June 1966 to 20 August 19661967: 1 July 1967 to 15 September 19671968: 1 July 1968 to 6 September 19681970: 1 June 1970 to 10 August 19701972: 3 July 1972 to 3 September 19721938194319491953195819631968JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Astor Exp STN meeting 30 C (86 F).
First to last qualifying date each year at Astor Exp STN
YearFirst dateLast date
19381938-07-131938-07-14
19401940-06-111940-08-17
19411941-05-101941-06-11
19421942-06-291942-08-13
19431943-09-061943-09-23
19441944-08-291944-09-04
19461946-08-171946-08-18
19471947-05-231947-09-22
19491949-09-031949-09-03
19501950-08-161950-09-21
19511951-06-281951-09-13
19521952-07-071952-10-06
19531953-08-101953-09-10
19551955-06-071955-09-04
19561956-05-161956-07-19
19571957-09-101957-09-22
19581958-06-051958-09-07
19591959-07-311959-07-31
19601960-07-051960-09-09
19611961-06-151961-06-15
19631963-09-031963-09-08
19641964-08-241964-08-24
19661966-06-151966-08-20
19671967-07-011967-09-15
19681968-07-011968-09-06
19701970-06-011970-08-10
19721972-07-031972-09-03

Every Fixed Threshold

Fixed thresholds at Astor Exp STN
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days27719527
35 C (95 F): Days1119401
90 F (32.2 C): Days18319402
0 C (32 F): Ice days (max15919509
0 C (32 F): Frost days (min3377195272
-10 C (14 F): Days with min12519725
10 mm (0.39 in): Days with 10 mm or more rain3497195067
25 mm (0.98 in): Days with 25 mm or more rain3441195023
50 mm (1.97 in): Days with 50 mm or more rain32719506
100 mm (3.94 in): Days with 100 mm or more rain3119501
10 cm (3.9 in): Days with 10 cm or more snowfall7419501
25 cm (9.8 in): Days with 25 cm or more snowfall2119501

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.

Download the Data

  • Data for Astor Exp STN 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).