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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Morrisville Threshold Days by Year

12 fixed thresholds counted per year at Morrisville (USC00435366): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Morrisville Thresholds

  • Morrisville: days with 10 mm (0.39 in) or more of precipitation in 4 years, most in 1903 with 42.
  • Morrisville: days with 25 mm (0.98 in) or more of precipitation in 4 years, most in 1903 with 8.
  • Morrisville: days with a maximum temperature at or above 30 C (86 F) in 2 years, most in 1903 with 19.
  • Morrisville: days with a maximum temperature at or above 90 F (32.2 C) in 2 years, most in 1903 with 3.
  • 12 fixed thresholds have at least one qualifying day at Morrisville.
4 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Morrisville Days per year at Morrisville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1903. 02040601903: 421904: 271949: 201950: 241903190419491950
Days per year at Morrisville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1903.
Days with 10 mm (0.39 in) or more of precipitation per year at Morrisville
YearDaysDecade average
19034234.5
19042734.5
19492020
19502424
First to last qualifying date each year at Morrisville For each year, a bar from the first to the last day at Morrisville meeting 10 mm (0.39 in). 1903: 3 January 1903 to 21 December 19031904: 22 January 1904 to 28 December 19041949: 31 January 1949 to 21 December 19491950: 24 January 1950 to 8 December 19501903190419491950JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Morrisville meeting 10 mm (0.39 in).
First to last qualifying date each year at Morrisville
YearFirst dateLast date
19031903-01-031903-12-21
19041904-01-221904-12-28
19491949-01-311949-12-21
19501950-01-241950-12-08

Every Fixed Threshold

Fixed thresholds at Morrisville
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days219190314
35 C (95 F): Days1119031
90 F (32.2 C): Days2319033
0 C (32 F): Ice days (max290190490
0 C (32 F): Frost days (min21881904188
-10 C (14 F): Days with min21041904104
-20 C (-4 F): Days with min244190444
-30 C (-22 F): Days with min2619035
10 mm (0.39 in): Days with 10 mm or more rain442190324
25 mm (0.98 in): Days with 25 mm or more rain4819035
50 mm (1.97 in): Days with 50 mm or more rain2219502
10 cm (3.9 in): Days with 10 cm or more snowfall2919038

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 Morrisville 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).