Poplar Bluff, MO

Missouri · Records since 1893–2026

🌙 66°F
Currently in Poplar Bluff
As of 9:15 PM CDT

Records for September 26

🔥 Record High

94°F

September 26, 1897

+15° from 79° normal

❄ Record Low

38°F

September 26, 1928

-17° from 55° normal
🌞 Normal high: 79°F 🌑 Normal low: 55°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 26

# Temp Date
🏆 94°F September 26, 1897
2 93°F September 26, 1939
3 92°F September 26, 2023
4 92°F September 26, 2017
5 92°F September 26, 1938
6 91°F September 26, 1986
7 91°F September 26, 1956
8 90°F September 26, 1998
9 90°F September 26, 1958
10 90°F September 26, 1954

Top 5 Record Lows — September 26

# Temp Date
🥶 38°F September 26, 1928
2 39°F September 26, 2001
3 40°F September 26, 2000
4 40°F September 26, 1940
5 42°F September 26, 1961
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
66
Dangerous nights 2026
Overnights ≥ 70°F
3
Heat waves 2026
so far

Days ≥ 90°F Per Year

1893–2026
61
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

160 of 266 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

24.93"
2026 YTD
Normal: 36.94"
-12.01"
1.53"
September so far
September normal: 3.98"
-2.45"
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 12.01" behind the normal pace

Period Review — Jun 27 – Sep 25, 2026

Any window, evaluated against every other year on record — 91 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
80.6°F
Average temperature
6th-warmest of 110
+3.6°
vs. average
Normal: 77.0°F (1991–2020)

Average Temperature by Year — Jun 27 – Sep 25

1894–2026 · 2026 highlighted

Precipitation by Year — Jun 27 – Sep 25

1899–2025 · 2026 highlighted · trend -0.05" per decade (drier since 1899)

Warmest Jun 27 – Sep 25 on Record

# Year Avg Temp
1 1936 81.3°F
2 1941 81.1°F
3 1921 80.8°F
4 1954 80.7°F
5 1983 80.6°F
6 2026 80.6°F
7 2010 79.5°F
8 1900 79.3°F
9 1901 79.0°F
10 2016 79.0°F

Coolest Jun 27 – Sep 25 on Record

# Year Avg Temp
1 1967 71.4°F
2 1917 73.6°F
3 1950 73.9°F
4 1915 74.3°F
5 2004 74.3°F
6 1924 74.4°F
7 1918 74.5°F
8 2014 74.7°F
9 1974 74.9°F
10 1976 74.9°F
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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