Poplar Bluff, MO

Missouri · Records since 1893–2026

☁️ 75°F Feels like 83°
Currently in Poplar Bluff
As of 1:30 PM CDT

Records for September 11

🔥 Record High

100°F

September 11, 1927

+16° from 84° normal

❄ Record Low

40°F

September 11, 1940

-21° from 61° normal
🌞 Normal high: 84°F 🌑 Normal low: 61°F 1991–2020 normals

All-Time Records — Poplar Bluff

🔥
112°F
Hottest Day Ever
Aug 9, 1930
❄
-25°F
Coldest Day Ever
Feb 13, 1899
🌧
6.60"
Wettest Day Ever
Mar 28, 1977
☃
20.0"
Most Snow in One Day
Jan 17, 1978

First & Last Dates — Poplar Bluff

How early and how late each seasonal turning point has ever arrived, across the full period of record

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Range ever recorded Normal date (1991–2020)
258 days
Longest growing season
2009
169 days
Shortest growing season
1894
217 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 100°F September 11, 1927
2 97°F September 11, 1897
3 97°F September 11, 1895
4 96°F September 11, 1983
5 96°F September 11, 1938
6 96°F September 11, 1919
7 95°F September 11, 1936
8 95°F September 11, 1901
9 94°F September 11, 2025
10 94°F September 11, 1991

Top 5 Record Lows — September 11

# Temp Date
🥶 40°F September 11, 1940
2 43°F September 11, 1917
3 44°F September 11, 1976
4 45°F September 11, 1969
5 48°F September 11, 1902
About this data — Records are sourced from the NOAA Threadex dataset via RCC ACIS, a quality-controlled record for long-term climate stations. Threadex adjusts for station relocations and observation-time changes, making records comparable across all years since 1893–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Poplar Bluff

threshold: 97°F (90th percentile of historical Jun–Aug highs)
4.8
Avg heat wave length
days (historical)
102°
Avg peak temp
during heat waves
61
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

Days ≥ 90°F Per Year

1893–2026
51
2026 so far
56
Avg/year 1970–2025
50
Avg/year (last 10 complete)
103
Most in a year (1953)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Poplar Bluff

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 10, 1901 – Aug 3, 1901 25 112°F (Jul 12) 104°F 68°F
2 Aug 9, 1936 – Aug 23, 1936 15 107°F (Aug 18) 101°F 71°F
3 Jul 29, 1947 – Aug 10, 1947 13 105°F (Aug 6) 101°F 70°F
4 Aug 1, 1934 – Aug 12, 1934 12 109°F (Aug 7) 103°F 74°F
5 Jul 16, 1934 – Jul 26, 1934 11 106°F (Jul 23) 102°F 72°F
6 Jul 8, 1969 – Jul 18, 1969 11 104°F (Jul 14) 99°F 73°F
7 Jul 31, 1930 – Aug 9, 1930 10 112°F (Aug 9) 103°F 66°F
8 Jul 2, 1990 – Jul 11, 1990 10 104°F (Jul 10) 100°F 73°F
9 Jul 13, 1932 – Jul 22, 1932 10 103°F (Jul 16) 100°F 71°F
10 Sep 2, 1925 – Sep 10, 1925 9 108°F (Sep 7) 104°F 65°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

Nights where the overnight low exceeded the 1991–2020 normal low

53
2026 total
above-normal nights
43.1
Avg / summer
1970–2020
77
Most in a summer
2010

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Annual totals and trend across the full period of record · see this year's standing →

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1893–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1893, annual totals have trended +0.68" per decade, about +9.0" across the record.

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")

This Year — 2026

How Poplar Bluff is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

149 of 252 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

23.81"
2026 YTD
Normal: 34.98"
-11.17"
0.41"
September so far
September normal: 3.98"
-3.57"
5
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Poplar Bluff is 11.17" behind the normal pace

Period Review — Sep 3 – Sep 10, 2026

Any window, evaluated against every other year on record — 8 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
84.2°F
Average temperature
2nd-warmest of 112
+10.0°
vs. average
Normal: 74.2°F (1991–2020)
0.41"
Precipitation
55th-driest of 117
-0.41"
vs. average
Normal: 0.82" · 50% of normal

Average Temperature by Year — Sep 3 – Sep 10

1894–2026 · 2026 highlighted · trend -0.15° per decade (cooling since 1894)

Precipitation by Year — Sep 3 – Sep 10

1894–2026 · 2026 highlighted · trend -0.01" per decade (drier since 1894)

Warmest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 1925 84.7°F
2 2026 84.2°F
3 1899 83.3°F
4 1922 83.2°F
5 1939 82.6°F
6 1947 82.5°F
7 1900 81.9°F
8 1960 81.8°F
9 1990 81.3°F
10 1927 81.1°F

Coolest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 1974 65.5°F
2 1934 66.3°F
3 1967 66.5°F
4 1918 66.6°F
5 1988 66.8°F
6 1924 66.8°F
7 1935 67.4°F
8 1956 68.1°F
9 2017 68.6°F
10 2025 68.6°F

Wettest Sep 3 – Sep 10 on Record

# Year Total
1 2010 4.92"
2 1973 4.01"
3 1942 3.17"
4 1937 3.10"
5 1898 3.07"
6 2008 2.89"
7 1918 2.69"
8 1991 2.65"
9 1936 2.42"
10 1948 2.40"

Driest Sep 3 – Sep 10 on Record

# Year Total
1 2024 0.00"
2 2019 0.00"
3 2013 0.00"
4 2004 0.00"
5 1981 0.00"
6 1979 0.00"
7 1978 0.00"
8 1964 0.00"
9 1961 0.00"
10 1956 0.00"
About this data. Pick any start and end date and this becomes the same kind of review as the Month and Fall tabs, just for exactly the window you asked for — the generalized version of the same engine, evaluated across every year on record. Average temperature is the mean of each day's (high + low) / 2; precipitation is the sum of daily totals. A year missing more than about a fifth of the window's days is excluded from the temperature ranking; any missing day excludes a year from the precipitation ranking, since an unreported day is unreported rain. Ranges that cross from December into January aren't supported yet. Normals are the 1991–2020 mean for the same window.
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