Buffalo, NY

New York · Records since 1873–2026

☀️ 74°F
Currently in Buffalo
As of 2:30 PM EDT

Records for September 11

🔥 Record High

87°F

September 11, 1952

+13° from 74° normal

❄ Record Low

39°F

September 11, 1967

-17° from 56° normal
🌞 Normal high: 74°F 🌑 Normal low: 56°F 1991–2020 normals

All-Time Records — Buffalo

🔥
99°F
Hottest Day Ever
Aug 27, 1948
❄
-20°F
Coldest Day Ever
Feb 2, 1961
🌧
5.01"
Wettest Day Ever
Jun 22, 1987
☃
33.9"
Most Snow in One Day
Dec 10, 1995

First & Last Dates — Buffalo

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)
224 days
Longest growing season
1902
122 days
Shortest growing season
1963
182 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 87°F September 11, 1952
2 87°F September 11, 1947
3 86°F September 11, 2013
4 86°F September 11, 1961
5 85°F September 11, 1925
6 84°F September 11, 1944
7 84°F September 11, 1906
8 84°F September 11, 1900
9 83°F September 11, 1982
10 82°F September 11, 2003

Top 5 Record Lows — September 11

# Temp Date
🥶 39°F September 11, 1967
2 40°F September 11, 1995
3 40°F September 11, 1883
4 41°F September 11, 1918
5 41°F September 11, 1879
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 1873–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Buffalo

threshold: 86°F (90th percentile of historical Jun–Aug highs)
4.1
Avg heat wave length
days (historical)
91°
Avg peak temp
during heat waves
9
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

Days ≥ 90°F Per Year

1878–2026
1
2026 so far
4
Avg/year 1970–2025
5
Avg/year (last 10 complete)
20
Most in a year (1955)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Buffalo

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 1, 2020 – Jul 10, 2020 10 98°F (Jul 9) 92°F 70°F
2 Aug 27, 1953 – Sep 4, 1953 9 98°F (Sep 3) 91°F 69°F
3 Jun 24, 1963 – Jul 2, 1963 9 94°F (Jun 30) 90°F 60°F
4 Jul 3, 1897 – Jul 10, 1897 8 95°F (Jul 10) 90°F 73°F
5 Aug 29, 1973 – Sep 5, 1973 8 90°F (Sep 4) 87°F 70°F
6 Aug 13, 1995 – Aug 20, 1995 8 90°F (Aug 19) 88°F 67°F
7 Jul 4, 1988 – Jul 10, 1988 7 97°F (Jul 6) 94°F 66°F
8 Aug 4, 2001 – Aug 10, 2001 7 93°F (Aug 5) 89°F 69°F
9 Jun 16, 2024 – Jun 22, 2024 7 93°F (Jun 18) 89°F 70°F
10 Jul 22, 1963 – Jul 28, 1963 7 91°F (Jul 25) 88°F 64°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

44
2026 total
above-normal nights
41.0
Avg / summer
1970–2020
69
Most in a summer
2020

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 (1871–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1871, annual totals have trended +0.39" per decade, about +6.1" 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 Buffalo is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

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

Precipitation, Year to Date

34.61"
2026 YTD
Normal: 26.45"
+8.16"
3.36"
September so far
September normal: 4.10"
-0.74"
10
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Buffalo is 8.16" ahead of the normal pace

Period Review — Aug 11 – Sep 10, 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)
69.7°F
Average temperature
38th-warmest of 154
+0.6°
vs. average
Normal: 69.0°F (1991–2020)
4.67"
Precipitation
27th-wettest of 156
+1.34"
vs. average
Normal: 3.33" · 140% of normal

Average Temperature by Year — Aug 11 – Sep 10

1873–2026 · 2026 highlighted · trend +0.16° per decade (warming since 1873)

Precipitation by Year — Aug 11 – Sep 10

1871–2026 · 2026 highlighted · trend +0.06" per decade (wetter since 1871)

Warmest Aug 11 – Sep 10 on Record

# Year Avg Temp
1 1959 76.5°F
2 1947 74.9°F
3 2016 74.1°F
4 2021 73.5°F
5 1900 73.0°F
6 1881 72.8°F
7 2020 72.7°F
8 1948 72.0°F
9 2002 71.8°F
10 1937 71.7°F

Coolest Aug 11 – Sep 10 on Record

# Year Avg Temp
1 1885 61.4°F
2 1963 62.1°F
3 1982 62.7°F
4 1883 63.0°F
5 1924 64.0°F
6 1887 64.1°F
7 1890 64.1°F
8 1946 64.1°F
9 1917 64.1°F
10 1896 64.6°F

Wettest Aug 11 – Sep 10 on Record

# Year Total
1 1975 8.40"
2 1944 7.80"
3 1885 7.77"
4 1979 6.47"
5 1893 6.20"
6 1914 6.15"
7 1946 5.95"
8 1926 5.93"
9 2004 5.64"
10 1968 5.63"

Driest Aug 11 – Sep 10 on Record

# Year Total
1 1876 0.14"
2 1881 0.18"
3 1930 0.57"
4 1986 0.79"
5 1945 0.93"
6 1991 1.04"
7 1899 1.05"
8 1953 1.07"
9 1925 1.07"
10 1874 1.17"
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