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Built 2026-10-19 (19 October 2026)

Downing 1 E Threshold Days by Year (USC00472209)

18 fixed thresholds counted per year at Downing 1 E (USC00472209): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Downing 1 E Thresholds

  • Downing 1 E: days with a maximum temperature at or above 30 C (86 F) in 29 years, most in 1934 with 48.
  • Downing 1 E: days with a maximum temperature at or above 90 F (32.2 C) in 29 years, most in 1931 with 35.
  • Downing 1 E: days with a maximum temperature at or below 0 C (32 F) in 29 years, most in 1926 with 90.
  • Downing 1 E: nights with a minimum temperature at or below 0 C (32 F) in 28 years, most in 1917 with 202.
  • 18 fixed thresholds have at least one qualifying day at Downing 1 E.
29 years with a qualifying day
Days at or above 30 C (86 F) per year at Downing 1 E Days per year at Downing 1 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 48 in 1934. 02040601903: 71904: 41905: 71907: 121908: 311909: 251911: 211912: 141913: 231914: 221917: 31918: 91919: 151920: 161921: 371922: 191923: 231924: 101925: 231926: 131927: 71928: 91929: 271930: 351931: 461932: 291933: 431934: 481935: 351903190719111914191919221925192819311934
Days per year at Downing 1 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 48 in 1934.
Days at or above 30 C (86 F) per year at Downing 1 E
YearDaysDecade average
1903714.3
1904414.3
1905714.3
19071214.3
19083114.3
19092514.3
19112115.3
19121415.3
19132315.3
19142215.3
1917315.3
1918915.3
19191515.3
19201618.4
19213718.4
19221918.4
19232318.4
19241018.4
19252318.4
19261318.4
1927718.4
1928918.4
19292718.4
19303539.3
19314639.3
19322939.3
19334339.3
19344839.3
19353539.3
First to last qualifying date each year at Downing 1 E For each year, a bar from the first to the last day at Downing 1 E meeting 30 C (86 F). 1903: 14 June 1903 to 28 July 19031904: 16 July 1904 to 28 September 19041905: 15 June 1905 to 10 August 19051907: 16 June 1907 to 19 September 19071908: 20 May 1908 to 25 September 19081909: 5 May 1909 to 26 August 19091911: 16 May 1911 to 17 August 19111912: 24 June 1912 to 9 September 19121913: 28 May 1913 to 8 September 19131914: 25 May 1914 to 9 August 19141917: 26 July 1917 to 29 July 19171918: 5 May 1918 to 14 September 19181919: 28 May 1919 to 20 September 19191920: 8 June 1920 to 25 September 19201921: 21 May 1921 to 1 September 19211922: 6 June 1922 to 9 September 19221923: 1 June 1923 to 13 August 19231924: 22 June 1924 to 30 August 19241925: 22 May 1925 to 19 September 19251926: 28 June 1926 to 17 September 19261927: 28 June 1927 to 14 September 19271928: 9 May 1928 to 10 October 19281929: 28 May 1929 to 4 September 19291930: 23 June 1930 to 23 September 19301931: 15 May 1931 to 20 September 19311932: 14 May 1932 to 30 August 19321933: 5 June 1933 to 8 September 19331934: 30 April 1934 to 19 August 19341935: 2 July 1935 to 24 September 193519031908191319191923192719311935JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Downing 1 E meeting 30 C (86 F).
First to last qualifying date each year at Downing 1 E
YearFirst dateLast date
19031903-06-141903-07-28
19041904-07-161904-09-28
19051905-06-151905-08-10
19071907-06-161907-09-19
19081908-05-201908-09-25
19091909-05-051909-08-26
19111911-05-161911-08-17
19121912-06-241912-09-09
19131913-05-281913-09-08
19141914-05-251914-08-09
19171917-07-261917-07-29
19181918-05-051918-09-14
19191919-05-281919-09-20
19201920-06-081920-09-25
19211921-05-211921-09-01
19221922-06-061922-09-09
19231923-06-011923-08-13
19241924-06-221924-08-30
19251925-05-221925-09-19
19261926-06-281926-09-17
19271927-06-281927-09-14
19281928-05-091928-10-10
19291929-05-281929-09-04
19301930-06-231930-09-23
19311931-05-151931-09-20
19321932-05-141932-08-30
19331933-06-051933-09-08
19341934-04-301934-08-19
19351935-07-021935-09-24

Every Fixed Threshold

Fixed thresholds at Downing 1 E
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2948193435
35 C (95 F): Days1625193110
40 C (104 F): Days2319343
90 F (32.2 C): Days2935193111
100 F (37.8 C): Days61619315
0 C (32 F): Ice days (max2990192677
0 C (32 F): Frost days (min282021917172
-10 C (14 F): Days with min2894192078
-20 C (-4 F): Days with min2855191727
-30 C (-22 F): Days with min281719245
-40 C (-40 F): Days with min10319071
20 C (68 F): Tropical nights (min2612193512
25 C (77 F): Days with min2219251
10 mm (0.39 in): Days with 10 mm or more rain2740191931
25 mm (0.98 in): Days with 25 mm or more rain271619037
50 mm (1.97 in): Days with 50 mm or more rain16519083
10 cm (3.9 in): Days with 10 cm or more snowfall151119265
25 cm (9.8 in): Days with 25 cm or more snowfall6319291

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1903.

Download the Data

  • Data for Downing 1 E 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).