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Built 2026-10-19 (19 October 2026)

Napoleonville Threshold Days by Year (USC00166561)

14 fixed thresholds counted per year at Napoleonville (USC00166561): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Napoleonville Thresholds

  • Napoleonville: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1913 with 65.
  • Napoleonville: days with 25 mm (0.98 in) or more of precipitation in 46 years, most in 1992 with 33.
  • Napoleonville: days with 50 mm (1.97 in) or more of precipitation in 46 years, most in 1991 with 12.
  • Napoleonville: days with 100 mm (3.94 in) or more of precipitation in 28 years, most in 2016 with 5.
  • 14 fixed thresholds have at least one qualifying day at Napoleonville.
6 years with a qualifying day
Days at or above 30 C (86 F) per year at Napoleonville Days per year at Napoleonville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 144 in 1915. 0501001501896: 1201913: 1261914: 1281915: 1441916: 1281917: 118189619131914191519161917
Days per year at Napoleonville with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 144 in 1915.
Days at or above 30 C (86 F) per year at Napoleonville
YearDaysDecade average
1896120120
1913126128.8
1914128128.8
1915144128.8
1916128128.8
1917118128.8
First to last qualifying date each year at Napoleonville For each year, a bar from the first to the last day at Napoleonville meeting 30 C (86 F). 1896: 30 March 1896 to 6 October 18961913: 23 March 1913 to 10 October 19131914: 17 April 1914 to 11 October 19141915: 12 April 1915 to 18 October 19151916: 15 April 1916 to 15 October 19161917: 15 March 1917 to 5 October 1917189619131914191519161917JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Napoleonville meeting 30 C (86 F).
First to last qualifying date each year at Napoleonville
YearFirst dateLast date
18961896-03-301896-10-06
19131913-03-231913-10-10
19141914-04-171914-10-11
19151915-04-121915-10-18
19161916-04-151916-10-15
19171917-03-151917-10-05

Every Fixed Threshold

Fixed thresholds at Napoleonville
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days61441915118
35 C (95 F): Days63319153
90 F (32.2 C): Days6110191571
100 F (37.8 C): Days2319143
0 C (32 F): Ice days (max1118961
0 C (32 F): Frost days (min624189621
-10 C (14 F): Days with min1119171
20 C (68 F): Tropical nights (min61431914123
25 C (77 F): Days with min51619143
10 mm (0.39 in): Days with 10 mm or more rain4665191330
25 mm (0.98 in): Days with 25 mm or more rain4633199217
50 mm (1.97 in): Days with 50 mm or more rain461219914
100 mm (3.94 in): Days with 100 mm or more rain28520161
200 mm (7.87 in): Days with 200 mm or more rain2119871

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1896.

Download the Data

  • Data for Napoleonville 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).