Baltimore Downtown, MD

Maryland · Records since 1950–2026

☁️ 80°F Feels like 84°
Currently in Baltimore Downtown
As of 2:30 PM EDT

Records for September 11

🔥 Record High

101°F

September 11, 1983

+19° from 82° normal

❄ Record Low

50°F

September 11, 1967

-16° from 66° normal
🌞 Normal high: 82°F 🌑 Normal low: 66°F 1991–2020 normals

All-Time Records — Baltimore Downtown

🔥
108°F
Hottest Day Ever
Jul 7, 2012
❄
-4°F
Coldest Day Ever
Jan 19, 1994
🌧
6.11"
Wettest Day Ever
Aug 1, 1971
☃
5.9"
Most Snow in One Day
Dec 25, 1979

First & Last Dates — Baltimore Downtown

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)
299 days
Longest growing season
2012
193 days
Shortest growing season
1972
250 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 101°F September 11, 1983
2 98°F September 11, 2013
3 96°F September 11, 1964
4 94°F September 11, 2019
5 94°F September 11, 1989
6 93°F September 11, 1961
7 90°F September 11, 2014
8 89°F September 11, 1990
9 88°F September 11, 1981
10 88°F September 11, 1966

Top 5 Record Lows — September 11

# Temp Date
🥶 50°F September 11, 1967
2 52°F September 11, 1958
3 54°F September 11, 1976
4 55°F September 11, 1995
5 56°F September 11, 1994
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 1950–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Baltimore Downtown

threshold: 96°F (90th percentile of historical Jun–Aug highs)
4.0
Avg heat wave length
days (historical)
101°
Avg peak temp
during heat waves
72
Dangerous nights 2026
Overnights ≥ 70°F
1
Heat waves 2026
so far

Days ≥ 90°F Per Year

1950–2026
47
2026 so far
41
Avg/year 1970–2025
42
Avg/year (last 10 complete)
84
Most in a year (1998)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Baltimore Downtown

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jun 28, 2012 – Jul 8, 2012 11 108°F (Jul 7) 101°F 80°F
2 Aug 8, 1988 – Aug 17, 1988 10 105°F (Aug 15) 99°F 79°F
3 Jul 7, 1993 – Jul 14, 1993 8 104°F (Jul 9) 101°F 81°F
4 Jul 12, 1997 – Jul 19, 1997 8 102°F (Jul 18) 98°F 77°F
5 Jul 24, 2025 – Jul 31, 2025 8 102°F (Jul 25) 98°F 80°F
6 Jul 20, 1987 – Jul 26, 1987 7 103°F (Jul 21) 100°F 80°F
7 Jul 9, 1992 – Jul 15, 1992 7 102°F (Jul 14) 98°F 80°F
8 Jun 21, 1997 – Jun 26, 1997 6 104°F (Jun 25) 100°F 76°F
9 Aug 28, 1973 – Sep 2, 1973 6 101°F (Aug 28) 99°F 80°F
10 Jul 15, 2013 – Jul 20, 2013 6 100°F (Jul 19) 98°F 81°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

46
2026 total
above-normal nights
44.5
Avg / summer
1970–2020
73
Most in a summer
2011

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 (1950–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1950, annual totals have trended -0.35" per decade, about -2.6" 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 Baltimore Downtown is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

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

Precipitation, Year to Date

30.55"
2026 YTD
Normal: 30.57"
-0.02"
0.59"
September so far
September normal: 4.49"
-3.90"
9
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Baltimore Downtown is running right at normal

Period Review — Jun 1 – Aug 31, 2026

Any window, evaluated against every other year on record — 92 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
79.8°F
Average temperature
21st-warmest of 72
+0.3°
vs. average
Normal: 79.4°F (1991–2020)

Average Temperature by Year — Jun 1 – Aug 31

1951–2026 · 2026 highlighted · trend +0.41° per decade (warming since 1951)

Precipitation by Year — Jun 1 – Aug 31

1951–2024 · 2026 highlighted · trend +0.11" per decade (wetter since 1951)

Warmest Jun 1 – Aug 31 on Record

# Year Avg Temp
1 2011 82.9°F
2 2012 82.5°F
3 2010 81.9°F
4 2025 81.7°F
5 1998 81.6°F
6 2007 81.6°F
7 2024 81.6°F
8 1991 81.6°F
9 1988 81.4°F
10 1987 80.6°F

Coolest Jun 1 – Aug 31 on Record

# Year Avg Temp
1 1958 75.4°F
2 2000 76.2°F
3 1972 76.2°F
4 1951 76.4°F
5 1953 76.5°F
6 1962 76.5°F
7 2014 76.6°F
8 1974 76.6°F
9 1979 76.7°F
10 1982 76.7°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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