Milton, MA

Massachusetts · Records since 1893–2026

☀️ 78°F Feels like 73°
Currently in Milton
As of 2:30 PM EDT

Records for September 11

🔥 Record High

91°F

September 11, 1931

+16° from 75° normal

❄ Record Low

37°F

September 11, 1917

-20° from 57° normal
🌞 Normal high: 75°F 🌑 Normal low: 57°F 1991–2020 normals

All-Time Records — Milton

🔥
101°F
Hottest Day Ever
Aug 3, 1975
❄
-21°F
Coldest Day Ever
Feb 9, 1934
🌧
8.07"
Wettest Day Ever
Aug 19, 1955
☃
27.4"
Most Snow in One Day
Feb 25, 1969

First & Last Dates — Milton

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)
219 days
Longest growing season
2017
139 days
Shortest growing season
1947
188 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 91°F September 11, 1931
2 90°F September 11, 1989
3 89°F September 11, 2002
4 89°F September 11, 1965
5 89°F September 11, 1961
6 88°F September 11, 1896
7 87°F September 11, 1925
8 86°F September 11, 1983
9 86°F September 11, 1952
10 86°F September 11, 1912

Top 5 Record Lows — September 11

# Temp Date
🥶 37°F September 11, 1917
2 40°F September 11, 1914
3 41°F September 11, 1918
4 43°F September 11, 1995
5 43°F September 11, 1924
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 — Milton

threshold: 88°F (90th percentile of historical Jun–Aug highs)
4.0
Avg heat wave length
days (historical)
94°
Avg peak temp
during heat waves
6
Dangerous nights 2026
Overnights ≥ 70°F
3
Heat waves 2026
so far

Days ≥ 90°F Per Year

1893–2026
11
2026 so far
7
Avg/year 1970–2025
12
Avg/year (last 10 complete)
23
Most in a year (1949)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Milton

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 3, 1912 – Jul 11, 1912 9 99°F (Jul 9) 92°F 65°F
2 Aug 12, 2002 – Aug 20, 2002 9 99°F (Aug 15) 94°F 67°F
3 Jul 12, 1952 – Jul 20, 1952 9 98°F (Jul 14) 92°F 67°F
4 Aug 10, 1944 – Aug 17, 1944 8 99°F (Aug 12) 96°F 69°F
5 Aug 3, 2022 – Aug 10, 2022 8 97°F (Aug 9) 95°F 71°F
6 Jul 22, 2016 – Jul 29, 2016 8 96°F (Jul 23) 94°F 69°F
7 Jul 30, 2002 – Aug 6, 2002 8 91°F (Aug 1) 90°F 69°F
8 Jul 4, 2010 – Jul 10, 2010 7 99°F (Jul 6) 92°F 70°F
9 Jul 20, 2022 – Jul 26, 2022 7 99°F (Jul 25) 94°F 72°F
10 Jul 13, 2012 – Jul 19, 2012 7 95°F (Jul 18) 91°F 69°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
38.4
Avg / summer
1970–2020
57
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 (1893–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1893, annual totals have trended +0.78" per decade, about +10.3" 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 Milton is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

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

Precipitation, Year to Date

27.02"
2026 YTD
Normal: 35.80"
-8.78"
1.03"
September so far
September normal: 4.06"
-3.03"
7
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Milton is 8.78" behind the normal pace

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)
72.1°F
Average temperature
5th-warmest of 134
+1.9°
vs. average
Normal: 70.2°F (1991–2020)
9.19"
Precipitation
42nd-driest of 123
-2.85"
vs. average
Normal: 12.04" · 76% of normal

Average Temperature by Year — Jun 1 – Aug 31

1893–2026 · 2026 highlighted · trend +0.31° per decade (warming since 1893)

Precipitation by Year — Jun 1 – Aug 31

1894–2026 · 2026 highlighted · trend +0.08" per decade (wetter since 1894)

Warmest Jun 1 – Aug 31 on Record

# Year Avg Temp
1 2022 73.0°F
2 2016 72.6°F
3 2020 72.2°F
4 1949 72.2°F
5 2026 72.1°F
6 2010 72.0°F
7 2018 71.9°F
8 2024 71.9°F
9 1999 71.6°F
10 1994 71.5°F

Coolest Jun 1 – Aug 31 on Record

# Year Avg Temp
1 1903 63.6°F
2 1902 64.8°F
3 1914 65.2°F
4 1897 65.4°F
5 1927 65.7°F
6 1904 65.8°F
7 1916 65.9°F
8 1915 65.9°F
9 1918 66.0°F
10 1920 66.2°F

Wettest Jun 1 – Aug 31 on Record

# Year Total
1 1998 25.64"
2 1955 24.61"
3 1938 24.09"
4 2006 21.56"
5 1982 20.26"
6 2023 19.70"
7 2021 19.68"
8 1989 18.83"
9 2013 17.92"
10 1927 17.42"

Driest Jun 1 – Aug 31 on Record

# Year Total
1 1949 3.48"
2 1957 3.54"
3 2016 4.90"
4 1965 5.24"
5 1964 5.37"
6 1997 5.45"
7 1993 5.86"
8 1894 5.95"
9 2022 6.00"
10 1943 6.14"
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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