Manchester, NH

New Hampshire · Records since 1885–2026

🌙 68°F Feels like 72°
Currently in Manchester
As of 5:45 AM EDT

Records for August 11

🔥 Record High

97°F

August 11, 2016

+14° from 83° normal

❄ Record Low

46°F

August 11, 1972

-17° from 63° normal
🌞 Normal high: 83°F 🌑 Normal low: 63°F 1991–2020 normals

All-Time Records — Manchester

🔥
103°F
Hottest Day Ever
Jul 22, 2011
-29°F
Coldest Day Ever
Feb 16, 1943
🌧
7.08"
Wettest Day Ever
Jul 25, 1887
17.3"
Most Snow in One Day
Jan 4, 1941

Top 10 Record Highs — August 11

# Temp Date
🏆 97°F August 11, 2016
2 96°F August 11, 2025
3 96°F August 11, 2020
4 96°F August 11, 1949
5 94°F August 11, 2002
6 93°F August 11, 1971
7 92°F August 11, 2021
8 92°F August 11, 1944
9 92°F August 11, 1939
10 91°F August 11, 1951

Top 5 Record Lows — August 11

# Temp Date
🥶 46°F August 11, 1972
2 48°F August 11, 1888
3 51°F August 11, 2007
4 51°F August 11, 1941
5 52°F August 11, 1967
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 1885–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Manchester

threshold: 90°F (90th percentile of historical Jun–Aug highs)
3.9
Avg heat wave length
days (historical)
95°
Avg peak temp
during heat waves
6
Dangerous nights 2026
Overnights ≥ 70°F
3
Heat waves 2026
so far

2026 Daily High Temperature vs Normal

Year to date
Above normal Below normal

105 of 222 days with data were above the 1991–2020 normal high for their date.


Days ≥ 90°F Per Year

1885–2026
15
2026 so far
13
Avg/year 1970–2025
24
Avg/year (last 10 complete)
36
Most in a year (1955)

Average Daily High by Decade

Full year · complete decades only


Longest Heat Waves — Manchester

# Dates Days Peak Avg High Avg Overnight Low
🏆 Jul 5, 2024 – Jul 18, 2024 14 97°F (Jul 15) 94°F 70°F
2 Aug 11, 2002 – Aug 19, 2002 9 98°F (Aug 14) 95°F 69°F
3 Aug 2, 2022 – Aug 9, 2022 8 99°F (Aug 4) 95°F 71°F
4 Jul 25, 2020 – Aug 1, 2020 8 96°F (Jul 27) 92°F 70°F
5 Jul 3, 2010 – Jul 9, 2010 7 99°F (Jul 5) 94°F 70°F
6 Jun 29, 2018 – Jul 5, 2018 7 95°F (Jul 1) 93°F 71°F
7 Jun 29, 1955 – Jul 5, 1955 7 94°F (Jul 2) 92°F 65°F
8 Aug 6, 1949 – Aug 11, 1949 6 100°F (Aug 10) 95°F 65°F
9 Aug 28, 1953 – Sep 2, 1953 6 100°F (Sep 2) 95°F 62°F
10 Jul 31, 1955 – Aug 5, 1955 6 100°F (Aug 1) 95°F 64°F

Heat Waves Per Year


Warm Summer Nights (Jun–Aug)

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

22
2026 so far
above-normal nights
39.5
Avg / summer
1970–2020
66
Most in a summer
2020

Above-Normal Summer Nights Per Year

Average June–August Low by Decade

Overnight lows · complete decades only

Precipitation

Actual vs. 1991–2020 full-month and full-season normals

20.69"
2026 YTD
Normal: 23.86"
-3.17"
1.82"
August so far
August normal: 3.35"
-1.53"
8.53"
Summer so far
Summer normal: 10.69"
-2.16"
2
2026 heavy rain days
Days with ≥ 1.0"

Monthly Precipitation — Last 24 Months

Blue = actual · dashed line = monthly normal

Annual Precipitation Per Year (1970–2026)

Blue = above average · tan = below average · gold = 2026 (partial)

Heavy Rain Days Per Year (≥ 1.0")

Compare year-to-year changes in days with heavy rainfall (≥ 1.0")

Month in Review — July 2026

72.7°F

Average temperature · July 2026

40th-warmest month on record

27th-warmest July of 69 on record

-1.0° vs. 73.8° average (1991–2020)
78.1°F
Warmest month ever
July 2024
78.1°F
Warmest July ever
2024
6
Days ≥ 90°F
in July
97°F
Hottest of 2026
May 19

Longest 90°F Streak in July

4 consecutive days with highs of at least 90°F (Jul 1–4, 2026, peaking at 97°F)

The longest July streak since 2024 (2 years). The July record is 14 days, set in 2024.


Average July Temperature by Year

1885–2026 · 2026 highlighted


Warmest Julys on Record

# Year Avg Temp
1 2024 78.1°F
2 2020 77.7°F
3 2019 77.4°F
4 2022 76.9°F
5 1955 76.9°F
6 2010 76.7°F
7 2018 76.4°F
8 2023 75.9°F
9 2006 75.6°F
10 2013 75.5°F

Warmest Months on Record (Any Month)

# Month Avg Temp
1 July 2024 78.1°F
2 July 2020 77.7°F
3 July 2019 77.4°F
4 July 2022 76.9°F
5 July 1955 76.9°F
6 July 2010 76.7°F
7 August 2022 76.5°F
8 July 2018 76.4°F
9 July 2023 75.9°F
10 July 2006 75.6°F

Nearby Stations — July 2026

How the same month ranked at the closest reporting stations

Station Avg Temp July Rank
Manchester, NH 72.7°F 27th of 69
Concord, NH 71.7°F 33rd of 158
Boston, MA 74.7°F 32nd of 155
Worcester, MA 70.9°F 65th of 134
Milton, MA 73.2°F 23rd of 134
About this data. Monthly averages are the mean of daily average temperatures, computed from NOAA Threadex records via RCC ACIS. Months missing more than three days of observations are excluded from the rankings, so the in-progress month never appears. Rankings cover 778 complete months on record.