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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Glenham Threshold Days by Year (USC00393339)

5 fixed thresholds counted per year at Glenham (USC00393339): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Glenham Thresholds

  • Glenham: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1946 with 20.
  • Glenham: days with 25 mm (0.98 in) or more of precipitation in 22 years, most in 1927 with 6.
  • Glenham: days with 50 mm (1.97 in) or more of precipitation in 9 years, most in 1927 with 1.
  • Glenham: days with 10 cm (3.9 in) or more of snowfall in 9 years, most in 1943 with 6.
  • 5 fixed thresholds have at least one qualifying day at Glenham.
26 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Glenham Days per year at Glenham with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1946. 051015201927: 121928: 91929: 71930: 111931: 91932: 131933: 121934: 41935: 131936: 31937: 101938: 91939: 71940: 61941: 111942: 141943: 191944: 171945: 121946: 201947: 121948: 121949: 131950: 131951: 141952: 6192719301933193619391942194519481951
Days per year at Glenham with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1946.
Days with 10 mm (0.39 in) or more of precipitation per year at Glenham
YearDaysDecade average
1927129.3
192899.3
192979.3
1930119.1
193199.1
1932139.1
1933129.1
193449.1
1935139.1
193639.1
1937109.1
193899.1
193979.1
1940613.6
19411113.6
19421413.6
19431913.6
19441713.6
19451213.6
19462013.6
19471213.6
19481213.6
19491313.6
19501311
19511411
1952611
First to last qualifying date each year at Glenham For each year, a bar from the first to the last day at Glenham meeting 10 mm (0.39 in). 1927: 15 April 1927 to 30 October 19271928: 11 June 1928 to 14 November 19281929: 27 May 1929 to 9 October 19291930: 24 February 1930 to 20 November 19301931: 26 March 1931 to 24 September 19311932: 23 April 1932 to 11 September 19321933: 24 March 1933 to 22 August 19331934: 7 June 1934 to 16 October 19341935: 4 March 1935 to 29 August 19351936: 23 March 1936 to 27 August 19361937: 20 May 1937 to 9 September 19371938: 18 March 1938 to 5 September 19381939: 2 June 1939 to 3 October 19391940: 21 April 1940 to 17 August 19401941: 14 April 1941 to 24 September 19411942: 23 February 1942 to 26 August 19421943: 3 January 1943 to 5 November 19431944: 27 January 1944 to 7 November 19441945: 25 March 1945 to 7 September 19451946: 16 March 1946 to 7 October 19461947: 3 June 1947 to 15 November 19471948: 24 April 1948 to 7 October 19481949: 20 January 1949 to 11 December 19491950: 3 January 1950 to 17 September 19501951: 28 February 1951 to 6 December 19511952: 19 May 1952 to 6 August 19521927193119351939194319471951JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Glenham meeting 10 mm (0.39 in).
First to last qualifying date each year at Glenham
YearFirst dateLast date
19271927-04-151927-10-30
19281928-06-111928-11-14
19291929-05-271929-10-09
19301930-02-241930-11-20
19311931-03-261931-09-24
19321932-04-231932-09-11
19331933-03-241933-08-22
19341934-06-071934-10-16
19351935-03-041935-08-29
19361936-03-231936-08-27
19371937-05-201937-09-09
19381938-03-181938-09-05
19391939-06-021939-10-03
19401940-04-211940-08-17
19411941-04-141941-09-24
19421942-02-231942-08-26
19431943-01-031943-11-05
19441944-01-271944-11-07
19451945-03-251945-09-07
19461946-03-161946-10-07
19471947-06-031947-11-15
19481948-04-241948-10-07
19491949-01-201949-12-11
19501950-01-031950-09-17
19511951-02-281951-12-06
19521952-05-191952-08-06

Every Fixed Threshold

Fixed thresholds at Glenham
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain262019466
25 mm (0.98 in): Days with 25 mm or more rain22619272
50 mm (1.97 in): Days with 50 mm or more rain9119271
10 cm (3.9 in): Days with 10 cm or more snowfall9619432
25 cm (9.8 in): Days with 25 cm or more snowfall2119431

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1927.

Download the Data

  • Data for Glenham 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).