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

W Monroe Threshold Days by Year (USC00169631)

16 fixed thresholds counted per year at W Monroe (USC00169631): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for W Monroe Thresholds

  • W Monroe: days with 10 mm (0.39 in) or more of precipitation in 44 years, most in 1957 with 60.
  • W Monroe: days with 25 mm (0.98 in) or more of precipitation in 44 years, most in 1961 with 26.
  • W Monroe: days with 50 mm (1.97 in) or more of precipitation in 43 years, most in 1940 with 11.
  • W Monroe: days with a maximum temperature at or above 30 C (86 F) in 19 years, most in 1955 with 154.
  • 16 fixed thresholds have at least one qualifying day at W Monroe.
19 years with a qualifying day
Days at or above 30 C (86 F) per year at W Monroe Days per year at W Monroe with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 154 in 1955. 0501001502001939: 1481940: 1121941: 1481942: 1341943: 1291944: 1341945: 1121946: 1071953: 1441954: 1361955: 1541956: 1441957: 1121958: 1201959: 1361960: 1341961: 1001962: 1451963: 1531939194119431945195319551957195919611963
Days per year at W Monroe with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 154 in 1955.
Days at or above 30 C (86 F) per year at W Monroe
YearDaysDecade average
1939148148
1940112125.1
1941148125.1
1942134125.1
1943129125.1
1944134125.1
1945112125.1
1946107125.1
1953144135.1
1954136135.1
1955154135.1
1956144135.1
1957112135.1
1958120135.1
1959136135.1
1960134133
1961100133
1962145133
1963153133
First to last qualifying date each year at W Monroe For each year, a bar from the first to the last day at W Monroe meeting 30 C (86 F). 1939: 2 April 1939 to 27 October 19391940: 12 March 1940 to 27 October 19401941: 11 April 1941 to 24 October 19411942: 19 April 1942 to 22 October 19421943: 6 April 1943 to 21 October 19431944: 11 May 1944 to 26 October 19441945: 2 April 1945 to 1 October 19451946: 30 March 1946 to 29 October 19461953: 19 March 1953 to 23 October 19531954: 12 March 1954 to 15 October 19541955: 12 March 1955 to 15 November 19551956: 7 March 1956 to 20 October 19561957: 3 April 1957 to 22 September 19571958: 5 April 1958 to 10 October 19581959: 21 April 1959 to 13 October 19591960: 7 April 1960 to 5 October 19601961: 7 May 1961 to 1 October 19611962: 30 April 1962 to 21 October 19621963: 14 March 1963 to 28 October 19631939194219451954195719601963JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at W Monroe meeting 30 C (86 F).
First to last qualifying date each year at W Monroe
YearFirst dateLast date
19391939-04-021939-10-27
19401940-03-121940-10-27
19411941-04-111941-10-24
19421942-04-191942-10-22
19431943-04-061943-10-21
19441944-05-111944-10-26
19451945-04-021945-10-01
19461946-03-301946-10-29
19531953-03-191953-10-23
19541954-03-121954-10-15
19551955-03-121955-11-15
19561956-03-071956-10-20
19571957-04-031957-09-22
19581958-04-051958-10-10
19591959-04-211959-10-13
19601960-04-071960-10-05
19611961-05-071961-10-01
19621962-04-301962-10-21
19631963-03-141963-10-28

Every Fixed Threshold

Fixed thresholds at W Monroe
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days191541955153
35 C (95 F): Days1985195456
40 C (104 F): Days4419541
90 F (32.2 C): Days191231953108
100 F (37.8 C): Days1036195410
0 C (32 F): Ice days (max8719637
0 C (32 F): Frost days (min1971196371
-10 C (14 F): Days with min5719627
20 C (68 F): Tropical nights (min19118195892
25 C (77 F): Days with min10819435
10 mm (0.39 in): Days with 10 mm or more rain4460195727
25 mm (0.98 in): Days with 25 mm or more rain4426196112
50 mm (1.97 in): Days with 50 mm or more rain431119403
100 mm (3.94 in): Days with 100 mm or more rain16219401
200 mm (7.87 in): Days with 200 mm or more rain2220162
10 cm (3.9 in): Days with 10 cm or more snowfall2119601

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1939.

Download the Data

  • Data for W Monroe 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 (2026-10-12).