Monroe, LA

Louisiana · Records since 1893–2026

🌤️ 94°F Feels like 100°
Currently in Monroe
As of 1:30 PM CDT
🔥 5° below today's record of 99°F

Records for September 11

🔥 Record High

99°F

September 11, 1947

+9° from 90° normal

❄ Record Low

51°F

September 11, 1976

-16° from 67° normal
🌞 Normal high: 90°F 🌑 Normal low: 67°F 1991–2020 normals

All-Time Records — Monroe

🔥
109°F
Hottest Day Ever
Jul 26, 1918
❄
-2°F
Coldest Day Ever
Feb 2, 1951
🌧
10.86"
Wettest Day Ever
Mar 9, 2016
☃
9.2"
Most Snow in One Day
Jan 30, 1949

First & Last Dates — Monroe

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)
302 days
Longest growing season
1990
203 days
Shortest growing season
1964
259 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 99°F September 11, 1947
2 98°F September 11, 1927
3 97°F September 11, 2010
4 97°F September 11, 1980
5 97°F September 11, 1936
6 97°F September 11, 1934
7 97°F September 11, 1920
8 97°F September 11, 1919
9 97°F September 11, 1915
10 96°F September 11, 2025

Top 5 Record Lows — September 11

# Temp Date
🥶 51°F September 11, 1976
2 53°F September 11, 1902
3 54°F September 11, 1924
4 55°F September 11, 1968
5 55°F September 11, 1907
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 — Monroe

threshold: 99°F (90th percentile of historical Jun–Aug highs)
5.0
Avg heat wave length
days (historical)
102°
Avg peak temp
during heat waves
113
Dangerous nights 2026
Overnights ≥ 70°F
3
Heat waves 2026
so far

Days ≥ 90°F Per Year

1893–2026
100
2026 so far
95
Avg/year 1970–2025
107
Avg/year (last 10 complete)
134
Most in a year (2010)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Monroe

# Dates Days Peak Avg High Avg Overnight Low
🏆 Aug 5, 1936 – Aug 22, 1936 18 106°F (Aug 10) 102°F 74°F
2 Jul 31, 2011 – Aug 13, 2011 14 107°F (Aug 3) 104°F 79°F
3 Aug 24, 2000 – Sep 4, 2000 12 107°F (Aug 30) 103°F 73°F
4 Jul 13, 1924 – Jul 24, 1924 12 106°F (Jul 23) 102°F 74°F
5 Aug 12, 2026 – Aug 23, 2026 12 105°F (Aug 17) 102°F 78°F
6 Aug 17, 2023 – Aug 27, 2023 11 108°F (Aug 24) 104°F 74°F
7 Aug 10, 1954 – Aug 20, 1954 11 103°F (Aug 11) 101°F 72°F
8 Jul 26, 1930 – Aug 4, 1930 10 108°F (Jul 29) 103°F 74°F
9 Jul 9, 1980 – Jul 18, 1980 10 104°F (Jul 16) 102°F 78°F
10 Jul 16, 1934 – Jul 25, 1934 10 103°F (Jul 23) 101°F 74°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

79
2026 total
above-normal nights
47.0
Avg / summer
1970–2020
91
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 (1892–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1892, annual totals have trended +0.56" per decade, about +7.4" 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 Monroe is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

187 of 253 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

29.55"
2026 YTD
Normal: 38.37"
-8.82"
0.05"
September so far
September normal: 3.55"
-3.50"
8
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Monroe is 8.82" 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)
85.9°F
Average temperature
2nd-warmest of 111
+6.1°
vs. average
Normal: 79.8°F (1991–2020)
0.05"
Precipitation
30th-driest of 125
-0.41"
vs. average
Normal: 0.46" · 11% of normal

Average Temperature by Year — Sep 3 – Sep 10

1894–2026 · 2026 highlighted

Precipitation by Year — Sep 3 – Sep 10

1893–2026 · 2026 highlighted · trend +0.01" per decade (wetter since 1893)

Warmest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 1947 86.4°F
2 2026 85.9°F
3 1910 85.3°F
4 2019 85.3°F
5 1906 85.3°F
6 1936 84.8°F
7 1990 84.6°F
8 1912 84.3°F
9 1980 84.2°F
10 1931 83.9°F

Coolest Sep 3 – Sep 10 on Record

# Year Avg Temp
1 1974 69.3°F
2 1988 71.5°F
3 1967 71.6°F
4 2011 72.6°F
5 1934 72.6°F
6 1968 72.8°F
7 2017 74.1°F
8 1950 74.1°F
9 1924 74.4°F
10 1918 74.6°F

Wettest Sep 3 – Sep 10 on Record

# Year Total
1 1923 5.32"
2 1965 4.37"
3 1985 3.96"
4 1973 3.82"
5 1969 3.53"
6 1917 3.10"
7 1926 2.97"
8 1968 2.92"
9 2011 2.83"
10 1959 2.82"

Driest Sep 3 – Sep 10 on Record

# Year Total
1 2020 0.00"
2 2015 0.00"
3 2006 0.00"
4 2005 0.00"
5 1996 0.00"
6 1982 0.00"
7 1979 0.00"
8 1971 0.00"
9 1962 0.00"
10 1955 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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