Hattiesburg, MS

Mississippi · Records since 1893–2026

🌙 74°F
Currently in Hattiesburg
As of 8:45 PM CDT

Records for September 26

🔥 Record High

97°F

September 26, 1915

+11° from 86° normal

❄ Record Low

46°F

September 26, 1975

-18° from 64° normal
🌞 Normal high: 86°F 🌑 Normal low: 64°F 1991–2020 normals

All-Time Records — Hattiesburg

🔥
107°F
Hottest Day Ever
Aug 26, 2023
❄
-1°F
Coldest Day Ever
Feb 13, 1899
🌧
10.68"
Wettest Day Ever
Apr 7, 1983
☃
5.0"
Most Snow in One Day
Feb 14, 1895

First & Last Dates — Hattiesburg

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)
298 days
Longest growing season
1918
200 days
Shortest growing season
1914
252 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 26

# Temp Date
🏆 97°F September 26, 1915
2 95°F September 26, 2019
3 95°F September 26, 1955
4 95°F September 26, 1954
5 95°F September 26, 1938
6 95°F September 26, 1911
7 94°F September 26, 2005
8 94°F September 26, 1972
9 93°F September 26, 1933
10 93°F September 26, 1931

Top 5 Record Lows — September 26

# Temp Date
🥶 46°F September 26, 1975
2 48°F September 26, 2001
3 49°F September 26, 1990
4 49°F September 26, 1899
5 50°F September 26, 1964
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 — Hattiesburg

threshold: 97°F (90th percentile of historical Jun–Aug highs)
5.3
Avg heat wave length
days (historical)
100°
Avg peak temp
during heat waves
113
Dangerous nights 2026
Overnights ≥ 70°F
5
Heat waves 2026
so far

Days ≥ 90°F Per Year

1893–2026
102
2026 so far
94
Avg/year 1970–2025
103
Avg/year (last 10 complete)
156
Most in a year (1925)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Hattiesburg

# Dates Days Peak Avg High Avg Overnight Low
🏆 May 28, 1911 – Jun 18, 1911 22 104°F (Jun 12) 101°F 69°F
2 Jun 17, 2009 – Jul 5, 2009 19 104°F (Jul 2) 100°F 75°F
3 Aug 10, 1902 – Aug 27, 1902 18 103°F (Aug 18) 100°F 72°F
4 Jul 10, 1924 – Jul 25, 1924 16 104°F (Jul 24) 99°F 73°F
5 Jun 5, 1902 – Jun 20, 1902 16 103°F (Jun 11) 100°F 68°F
6 Jun 29, 1902 – Jul 13, 1902 15 103°F (Jul 4) 100°F 72°F
7 Jun 20, 1914 – Jul 3, 1914 14 106°F (Jun 26) 100°F 71°F
8 Aug 10, 1925 – Aug 23, 1925 14 103°F (Aug 20) 100°F 72°F
9 Sep 7, 1920 – Sep 20, 1920 14 99°F (Sep 9) 98°F 68°F
10 Jun 18, 1930 – Jun 30, 1930 13 105°F (Jun 26) 101°F 70°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

74
2026 total
above-normal nights
36.6
Avg / summer
1970–2020
84
Most in a summer
1893

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 +0.95" per decade, about +12.6" 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 Hattiesburg is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

192 of 264 days with data were above the 1991–2020 normal high for their date.

Precipitation, Year to Date

57.03"
2026 YTD
Normal: 45.95"
+11.08"
1.17"
September so far
September normal: 4.15"
-2.98"
17
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Hattiesburg is 11.08" ahead of 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)
83.3°F
Average temperature
2nd-warmest of 127
+4.2°
vs. average
Normal: 79.0°F (1991–2020)

Average Temperature by Year — Aug 26 – Sep 25

1893–2026 · 2026 highlighted · trend +0.07° per decade (warming since 1893)

Precipitation by Year — Aug 26 – Sep 25

1893–2025 · 2026 highlighted · trend +0.10" per decade (wetter since 1893)

Warmest Aug 26 – Sep 25 on Record

# Year Avg Temp
1 1925 83.7°F
2 2026 83.3°F
3 2023 82.8°F
4 1911 82.6°F
5 1970 82.1°F
6 2016 82.0°F
7 2018 81.6°F
8 1909 81.6°F
9 1926 81.6°F
10 2019 81.5°F

Coolest Aug 26 – Sep 25 on Record

# Year Avg Temp
1 1918 73.6°F
2 1952 74.6°F
3 1946 74.6°F
4 1968 74.8°F
5 1981 74.9°F
6 1953 74.9°F
7 1916 75.2°F
8 1917 75.4°F
9 1903 75.5°F
10 1974 75.6°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.
← Back to all stations