Climate Analysis Hub — Trenton, MO
Precipitation patterns, bucket probabilities, and historical milestones.
1896–2025 · 114 complete years. Incomplete years (including 2026) are listed but not averaged.
🌧️ Daily Precipitation Profile · September 23
Wettest on Record
2.30"
Set in 1958
Measurable Rain Chance
30%
34 of 115 years recorded ≥ 0.01"
Average Rainfall
0.19"
All-time average on September 23
Most Common Bucket
0.00"
81 of 115 years (70%)
| Rainfall Bucket | 0.00" | Trace | ≤ 0.25" | 0.26–0.50" | 0.51–0.75" | 0.76–1.00" | 1.01–1.50" | 1.51–2.00" | 2.01–3.00" | 3.01"+ | Years |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily Rain DistributionHistorical frequency on September 23 | 81 | — | 14 | 5 | 5 | 1 | 5 | 1 | 3 | — | 115 |
🌧️ Daily Rainfall History · September 23 (1893–Present)
Bars: Measured Rain (Inches) · Line: 30-Year Centered Average
🌊 Top 3 Wettest on Record
- #1 1958 2.30"
- #2 1961 2.15"
- #3 1964 2.10"
💧 Single-Day Precipitation Probabilities
≥ 0.10":
20% (23/115)
≥ 0.25":
17% (20/115)
≥ 0.50":
13% (15/115)
≥ 1.00":
8% (9/115)
≥ 2.00":
3% (3/115)
🌧️ Monthly Rainfall Profile · September
Historical precipitation statistics for the month of September across 112 complete years (1896–2025 · 114 complete years).
Wettest September
12.06"
Recorded in 1911
All-Time Peak Monthly Total
Driest September
0.27"
Recorded in 1906
All-Time Driest Monthly Total
Average September Rain
4.01"
Typical full month normal
Average Rain Days:
7.9 days/mo
Monthly Streaks
Longest Wet Streak:
9 consecutive days
9 consecutive days
Occurred in 1898
Longest Dry Streak:
30 consecutive days
Occurred in 1896
Day of Week Rain Odds
Most Likely Rain Day:
Saturday
Saturday
28% of Saturdays (145/511)
Least Likely (Driest):
Thursday
23% rain chance (77% dry)
Extreme Days of Month
Wettest Day of Month:
14th
14th
34% rain chance (40/119)
Driest Day of Month:
5th
16% rain chance (84% dry)
🌧️ Monthly Rainfall History · Month of September (1893–Present)
Bars: Monthly Total (Inches) · Line: 30-Year Centered Average
| Period | 0.00" | Trace | ≤ 0.25" | 0.26–0.50" | 0.51–0.75" | 0.76–1.00" | 1.01–1.50" | 1.51–2.00" | 2.01–3.00" | 3.01"+ | Days |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Month to dateSeptember · Sep 1 – Sep 24 | 10 | 0 | 8 | 1 | 2 | 2 | 0 | 0 | 0 | 0 | 23 |
| Monthly averagetypical days in bin for entire September | 22 | 0 | 4 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 30 |
| Record highmost days in bin during September | 291939 | 02025 | 101973 | 51926 | 31973 | 22013 | 32016 | 22010 | 31964 | 12014 | — |
🌧️ Annual Precipitation Milestones & Frequencies (All-Time Normal)
Average date of first calendar-year arrival and typical annual occurrences across 114 complete years (1896–2025 · 114 complete years).
First Rain ≥ 0.50"
February 3
Earliest: Jan 1
Latest: Apr 23
Latest: Apr 23
Annual Avg Days:
23.7 days/yr
First Rain ≥ 1.00"
March 20
Earliest: Jan 1
Latest: Aug 24
Latest: Aug 24
Annual Avg Days:
9.6 days/yr
First Rain ≥ 2.00"
June 11
Earliest: Dec 26
Latest: Oct 28 (hit in 97/114 yrs)
Latest: Oct 28 (hit in 97/114 yrs)
Annual Avg Days:
1.9 days/yr
Annual Totals & Extremes
36.20" avg/yr
Normal Rain Days: 90.9 days
Wettest Year: 59.51" (2008)
Driest Year: 17.07" (1897)
Wettest Year: 59.51" (2008)
Driest Year: 17.07" (1897)
Record Daily Peak:
6.66" (Sep 7, 1914)
Precipitation Streaks
Longest Wet Streak:
14 consecutive days
14 consecutive days
May 15, 2021 – May 28, 2021
Longest Dry Streak:
65 consecutive days
Jul 28, 1896 – Sep 30, 1896
Day of Week Climatology
All-Time Wettest Day:
Sunday
Sunday
26% chance (1605/6224)
All-Time Driest Day:
Friday
24% rain chance (76% dry)
Calendar Day Rain Extremes
Wettest Day of Year:
May 26
May 26
46% chance (55/119)
Driest Day of Year:
January 18
8% rain chance (92% dry)
🌧️ Annual Total Rainfall History (1893–Present)
Bars: Total Annual Rain (Inches) · Line: 30-Year Centered Average
2026 so far —
total rainfall: 31.85"
|
rain days: 80
|
wettest day: May 16 (6.46")
(not used in the averages yet)
Year by year precipitation
| Year | Wettest Day | Daily Peak | Total Rainfall | Rain Days (≥ 0.01") | |
|---|---|---|---|---|---|
| 2026 | May 16, 2026 | 6.46" | 31.85" | 80 | excluded |
| 2025 | May 20, 2025 | 4.10" | 35.06" | 88 | |
| 2024 | Apr 28, 2024 | 2.55" | 34.46" | 95 | |
| 2023 | Aug 12, 2023 | 1.71" | 29.34" | 99 | |
| 2022 | Nov 5, 2022 | 2.82" | 36.05" | 87 | |
| 2021 | Jun 25, 2021 | 3.73" | 39.86" | 100 | |
| 2020 | May 15, 2020 | 2.00" | 35.85" | 94 | |
| 2019 | May 29, 2019 | 4.30" | 53.66" | 127 | |
| 2018 | Oct 8, 2018 | 3.57" | 29.97" | 110 | |
| 2017 | Jul 13, 2017 | 6.30" | 40.54" | 92 | |
| 2016 | Jun 21, 2016 | 3.98" | 36.54" | 102 | |
| 2015 | Jul 29, 2015 | 3.40" | 47.62" | 112 | |
| 2014 | Sep 10, 2014 | 3.93" | 39.35" | 103 | |
| 2013 | Apr 18, 2013 | 3.07" | 37.00" | 100 | |
| 2012 | May 4, 2012 | 2.00" | 26.54" | 78 | |
| 2011 | Jun 10, 2011 | 3.61" | 36.59" | 106 | |
| 2010 | May 11, 2010 | 2.67" | 45.97" | 107 | |
| 2009 | Aug 27, 2009 | 2.65" | 50.61" | 112 | |
| 2008 | Jun 25, 2008 | 5.25" | 59.51" | 120 | |
| 2007 | May 6, 2007 | 3.90" | 34.74" | 94 | |
| 2006 | Aug 6, 2006 | 2.00" | 30.89" | 71 | |
| 2005 | Aug 20, 2005 | 1.90" | 29.20" | 73 | |
| 2004 | Mar 5, 2004 | 2.60" | 44.10" | 101 | |
| 2003 | Aug 27, 2003 | 2.76" | 34.92" | 84 | |
| 2002 | May 11, 2002 | 2.10" | 35.27" | 82 | |
| 2001 | Jun 6, 2001 | 3.00" | 46.78" | 90 | |
| 2000 | Jun 11, 2000 | 2.80" | 34.09" | 110 | |
| 1999 | Sep 27, 1999 | 2.42" | 28.80" | 89 | |
| 1998 | Oct 4, 1998 | 5.02" | 49.35" | 108 | |
| 1997 | Dec 25, 1997 | 0.62" | 2.55" | 9 | excluded |
| 1987 | May 2, 1987 | 2.80" | 11.52" | 21 | excluded |
| 1986 | Oct 3, 1986 | 2.36" | 34.77" | 69 | excluded |
| 1985 | Oct 10, 1985 | 3.19" | 36.39" | 109 | |
| 1984 | May 13, 1984 | 2.96" | 42.37" | 113 | |
| 1983 | Nov 4, 1983 | 1.60" | 32.46" | 112 | |
| 1982 | May 15, 1982 | 4.39" | 54.41" | 115 | |
| 1981 | Jul 23, 1981 | 5.05" | 39.02" | 95 | |
| 1980 | Sep 1, 1980 | 2.80" | 35.01" | 77 | |
| 1979 | Aug 29, 1979 | 3.00" | 27.87" | 96 | |
| 1978 | Sep 18, 1978 | 5.61" | 41.28" | 90 | |
| 1977 | Aug 9, 1977 | 3.40" | 38.96" | 115 | |
| 1976 | Sep 26, 1976 | 3.75" | 29.20" | 71 | |
| 1975 | Aug 25, 1975 | 1.80" | 29.33" | 96 | |
| 1974 | Jul 4, 1974 | 5.55" | 35.67" | 98 | |
| 1973 | Sep 25, 1973 | 2.20" | 48.44" | 100 | |
| 1972 | Apr 21, 1972 | 1.38" | 26.69" | 74 | |
| 1971 | Aug 21, 1971 | 2.55" | 24.75" | 56 | excluded |
| 1970 | Jun 12, 1970 | 2.13" | 24.86" | 64 | |
| 1969 | Jun 22, 1969 | 2.50" | 31.02" | 76 | |
| 1968 | Apr 14, 1968 | 1.75" | 24.31" | 61 | |
| 1967 | Oct 5, 1967 | 3.71" | 43.76" | 82 | |
| 1966 | Jul 19, 1966 | 3.12" | 23.04" | 58 | |
| 1965 | Jan 1, 1965 | 2.10" | 27.65" | 74 | |
| 1964 | Sep 6, 1964 | 2.50" | 34.26" | 81 | |
| 1963 | Jul 13, 1963 | 2.67" | 29.36" | 68 | |
| 1962 | May 26, 1962 | 2.79" | 36.33" | 81 | |
| 1961 | Jul 25, 1961 | 4.50" | 50.96" | 78 | |
| 1960 | Aug 26, 1960 | 3.20" | 37.52" | 78 | |
| 1959 | Aug 5, 1959 | 1.92" | 27.20" | 69 | |
| 1958 | Sep 23, 1958 | 2.30" | 23.35" | 71 | |
| 1957 | Mar 25, 1957 | 1.78" | 32.82" | 88 | |
| 1956 | Jul 29, 1956 | 2.50" | 22.48" | 63 | excluded |
| 1955 | Jun 25, 1955 | 3.69" | 28.65" | 78 | |
| 1954 | Aug 12, 1954 | 2.24" | 29.97" | 81 | |
| 1953 | Jul 4, 1953 | 2.11" | 29.66" | 82 | |
| 1952 | Sep 1, 1952 | 2.55" | 32.74" | 94 | |
| 1951 | Aug 15, 1951 | 1.61" | 39.85" | 143 | |
| 1950 | Jun 3, 1950 | 1.80" | 23.71" | 94 | |
| 1949 | Jul 12, 1949 | 4.07" | 40.40" | 106 | |
| 1948 | Jun 23, 1948 | 2.06" | 30.35" | 107 | |
| 1947 | Jun 5, 1947 | 3.96" | 51.39" | 111 | |
| 1946 | Jun 30, 1946 | 3.20" | 37.29" | 96 | |
| 1945 | Jun 16, 1945 | 3.37" | 41.37" | 113 | |
| 1944 | Apr 22, 1944 | 3.14" | 41.75" | 105 | |
| 1943 | Jul 31, 1943 | 2.20" | 32.70" | 97 | |
| 1942 | Dec 26, 1942 | 3.08" | 39.13" | 89 | |
| 1941 | May 22, 1941 | 1.92" | 37.19" | 101 | |
| 1940 | Jul 27, 1940 | 2.51" | 31.66" | 90 | |
| 1939 | Aug 2, 1939 | 5.04" | 37.59" | 84 | |
| 1938 | Aug 6, 1938 | 2.24" | 28.02" | 85 | |
| 1937 | May 25, 1937 | 2.32" | 29.82" | 87 | |
| 1936 | Sep 26, 1936 | 3.09" | 22.98" | 68 | |
| 1935 | Sep 1, 1935 | 1.78" | 38.60" | 111 | |
| 1934 | Nov 22, 1934 | 1.93" | 31.64" | 83 | |
| 1933 | May 26, 1933 | 1.90" | 26.12" | 68 | |
| 1932 | Aug 14, 1932 | 1.91" | 37.87" | 87 | |
| 1931 | Aug 31, 1931 | 3.08" | 52.27" | 109 | |
| 1930 | Aug 17, 1930 | 2.03" | 32.23" | 81 | |
| 1929 | Jul 6, 1929 | 3.31" | 46.07" | 116 | |
| 1928 | Sep 11, 1928 | 3.29" | 44.12" | 99 | |
| 1927 | Jun 3, 1927 | 2.37" | 40.39" | 93 | |
| 1926 | Sep 15, 1926 | 2.60" | 37.71" | 99 | |
| 1925 | Jun 3, 1925 | 4.12" | 46.46" | 95 | |
| 1924 | Mar 28, 1924 | 2.15" | 36.53" | 97 | |
| 1923 | Jun 27, 1923 | 2.17" | 38.01" | 105 | |
| 1922 | Jul 17, 1922 | 4.45" | 46.70" | 93 | |
| 1921 | Apr 15, 1921 | 3.82" | 36.14" | 87 | |
| 1920 | Mar 24, 1920 | 2.85" | 39.48" | 89 | |
| 1919 | May 3, 1919 | 4.50" | 42.83" | 91 | |
| 1918 | May 28, 1918 | 3.22" | 37.20" | 90 | |
| 1917 | Jun 26, 1917 | 2.69" | 34.49" | 69 | |
| 1916 | Jun 5, 1916 | 2.13" | 36.51" | 82 | |
| 1915 | Jul 11, 1915 | 5.26" | 48.62" | 109 | |
| 1914 | Sep 7, 1914 | 6.66" | 35.94" | 101 | |
| 1913 | Feb 20, 1913 | 4.00" | 38.53" | 98 | |
| 1912 | Aug 28, 1912 | 2.65" | 31.12" | 96 | |
| 1911 | Feb 13, 1911 | 2.86" | 46.06" | 111 | |
| 1910 | May 19, 1910 | 2.78" | 29.27" | 74 | |
| 1909 | Jul 6, 1909 | 2.65" | 43.67" | 89 | |
| 1908 | Oct 22, 1908 | 2.05" | 33.79" | 73 | |
| 1907 | Jan 19, 1907 | 2.22" | 30.28" | 77 | |
| 1906 | Aug 24, 1906 | 1.86" | 23.46" | 74 | |
| 1905 | Jul 26, 1905 | 2.46" | 40.20" | 87 | |
| 1904 | Sep 13, 1904 | 2.47" | 35.56" | 88 | |
| 1903 | Sep 9, 1903 | 2.67" | 35.50" | 93 | |
| 1902 | Aug 26, 1902 | 2.20" | 42.79" | 96 | |
| 1901 | Jun 5, 1901 | 1.97" | 24.82" | 68 | |
| 1900 | Oct 28, 1900 | 2.40" | 32.48" | 74 | |
| 1899 | May 19, 1899 | 2.80" | 31.68" | 73 | excluded |
| 1898 | May 31, 1898 | 2.00" | 34.12" | 56 | excluded |
| 1897 | Apr 23, 1897 | 2.30" | 17.07" | 37 | |
| 1896 | May 31, 1896 | 2.40" | 23.90" | 44 | |
| 1895 | Jul 19, 1895 | 2.37" | 30.09" | 56 | excluded |