Greenville, MS

Mississippi · Records since 1903–2026

🌙 79°F
Currently in Greenville
As of 8:45 PM CDT

Records for September 26

🔥 Record High

96°F

September 26, 1986

+11° from 85° normal

❄ Record Low

41°F

September 26, 2001

-20° from 61° normal
🌞 Normal high: 85°F 🌑 Normal low: 61°F 1991–2020 normals

All-Time Records — Greenville

🔥
110°F
Hottest Day Ever
Jul 29, 1930
❄
-2°F
Coldest Day Ever
Feb 2, 1951
🌧
8.95"
Wettest Day Ever
Sep 3, 2008
☃
10.0"
Most Snow in One Day
Dec 22, 1929

First & Last Dates — Greenville

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)
310 days
Longest growing season
1973
191 days
Shortest growing season
1926
247 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 26

# Temp Date
🏆 96°F September 26, 1986
2 95°F September 26, 1936
3 95°F September 26, 1904
4 94°F September 26, 2019
5 94°F September 26, 1977
6 94°F September 26, 1911
7 94°F September 26, 1905
8 93°F September 26, 2023
9 93°F September 26, 1998
10 93°F September 26, 1984

Top 5 Record Lows — September 26

# Temp Date
🥶 41°F September 26, 2001
2 43°F September 26, 1975
3 43°F September 26, 1965
4 47°F September 26, 1985
5 47°F September 26, 1940
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 1903–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Greenville

threshold: 98°F (90th percentile of historical Jun–Aug highs)
4.9
Avg heat wave length
days (historical)
101°
Avg peak temp
during heat waves
103
Dangerous nights 2026
Overnights ≥ 70°F
4
Heat waves 2026
so far

Days ≥ 90°F Per Year

1903–2026
97
2026 so far
85
Avg/year 1970–2025
95
Avg/year (last 10 complete)
124
Most in a year (1925)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Greenville

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 26, 1930 – Aug 18, 1930 24 110°F (Jul 29) 102°F 74°F
2 Jun 30, 1980 – Jul 19, 1980 20 105°F (Jul 13) 103°F 78°F
3 Aug 5, 1936 – Aug 22, 1936 18 106°F (Aug 10) 101°F 74°F
4 Aug 30, 2026 – Sep 10, 2026 12 103°F (Sep 6) 100°F 72°F
5 Jun 27, 1925 – Jul 8, 1925 12 101°F (Jun 28) 99°F 72°F
6 Jun 27, 1978 – Jul 8, 1978 12 101°F (Jul 8) 100°F 76°F
7 Aug 8, 2007 – Aug 18, 2007 11 106°F (Aug 10) 102°F 74°F
8 Sep 1, 1925 – Sep 10, 1925 10 107°F (Sep 6) 103°F 71°F
9 Jun 23, 1914 – Jul 1, 1914 9 107°F (Jun 27) 101°F 75°F
10 Jul 31, 2011 – Aug 8, 2011 9 106°F (Aug 3) 102°F 78°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

58
2026 total
above-normal nights
43.1
Avg / summer
1970–2020
78
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 (1903–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1903, annual totals have trended -0.30" per decade, about -3.6" 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 Greenville is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

181 of 262 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

19.14"
2026 YTD
Normal: 34.97"
-15.83"
0.12"
September so far
September normal: 3.62"
-3.50"
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 · Greenville is 15.83" behind the normal pace

Period Review — Aug 26 – Sep 25, 2026

Any window, evaluated against every other year on record — 31 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
84.4°F
Average temperature
1st-warmest of 123
+6.8°
vs. average
Normal: 77.5°F (1991–2020)

Average Temperature by Year — Aug 26 – Sep 25

1903–2026 · 2026 highlighted

Precipitation by Year — Aug 26 – Sep 25

1903–2025 · 2026 highlighted · trend +0.04" per decade (wetter since 1903)

Warmest Aug 26 – Sep 25 on Record

# Year Avg Temp
1 2026 84.4°F
2 1925 84.0°F
3 1936 83.4°F
4 1980 82.9°F
5 1921 82.8°F
6 1939 82.5°F
7 2016 82.4°F
8 1931 82.3°F
9 2019 82.2°F
10 1926 82.1°F

Coolest Aug 26 – Sep 25 on Record

# Year Avg Temp
1 1968 72.3°F
2 1967 72.7°F
3 1974 72.7°F
4 1918 73.4°F
5 1950 73.7°F
6 1981 74.0°F
7 1946 74.2°F
8 1992 74.3°F
9 1957 74.3°F
10 1969 74.3°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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