Poughkeepsie, NY

New York · Records since 1931–2026

☀️ 77°F
Currently in Poughkeepsie
As of 2:30 PM EDT

Records for September 11

🔥 Record High

97°F

September 11, 1983

+20° from 77° normal

❄ Record Low

37°F

September 11, 1949

-17° from 54° normal
🌞 Normal high: 77°F 🌑 Normal low: 54°F 1991–2020 normals

All-Time Records — Poughkeepsie

🔥
104°F
Hottest Day Ever
Aug 1, 1933
❄
-30°F
Coldest Day Ever
Jan 21, 1961
🌧
7.57"
Wettest Day Ever
Oct 8, 2005
☃
19.0"
Most Snow in One Day
Dec 26, 1947

First & Last Dates — Poughkeepsie

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)
210 days
Longest growing season
2021
113 days
Shortest growing season
1963
163 days
Normal growing season
1991–2020 average

Top 10 Record Highs — September 11

# Temp Date
🏆 97°F September 11, 1983
2 95°F September 11, 2013
3 95°F September 11, 1964
4 92°F September 11, 1961
5 88°F September 11, 2019
6 88°F September 11, 1989
7 88°F September 11, 1952
8 88°F September 11, 1947
9 88°F September 11, 1946
10 88°F September 11, 1931

Top 5 Record Lows — September 11

# Temp Date
🥶 37°F September 11, 1949
2 39°F September 11, 1995
3 41°F September 11, 1985
4 41°F September 11, 1963
5 41°F September 11, 1958
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 1931–2026. Climate normals represent the 1991–2020 average.

Heat Wave Summary — Poughkeepsie

threshold: 91°F (90th percentile of historical Jun–Aug highs)
4.0
Avg heat wave length
days (historical)
96°
Avg peak temp
during heat waves
9
Dangerous nights 2026
Overnights ≥ 70°F
2
Heat waves 2026
so far

Days ≥ 90°F Per Year

1931–2026
16
2026 so far
17
Avg/year 1970–2025
22
Avg/year (last 10 complete)
38
Most in a year (1943)

Average Daily High by Decade

Full year · complete decades only

Longest Heat Waves — Poughkeepsie

# Dates Days Peak Avg High Avg Overnight Low
🏆 Aug 27, 1953 – Sep 4, 1953 9 101°F (Sep 2) 97°F 62°F
2 Jul 21, 2016 – Jul 29, 2016 9 98°F (Jul 22) 94°F 66°F
3 Jul 16, 1991 – Jul 23, 1991 8 102°F (Jul 19) 98°F 66°F
4 Jul 7, 1993 – Jul 14, 1993 8 100°F (Jul 7) 96°F 66°F
5 Aug 2, 2022 – Aug 9, 2022 8 99°F (Aug 4) 95°F 70°F
6 Aug 10, 1944 – Aug 17, 1944 8 98°F (Aug 11) 96°F 70°F
7 Aug 28, 1973 – Sep 4, 1973 8 98°F (Aug 28) 95°F 68°F
8 Jul 5, 1944 – Jul 12, 1944 8 96°F (Jul 8) 94°F 63°F
9 Aug 1, 1955 – Aug 7, 1955 7 100°F (Aug 5) 95°F 68°F
10 Jul 14, 2013 – Jul 20, 2013 7 97°F (Jul 19) 94°F 72°F

Heat Waves Per Year

Warm Summer Nights (Jun–Aug)

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

45
2026 total
above-normal nights
40.8
Avg / summer
1970–2020
67
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 (1931–2026)

Blue = above average · tan = below average · gold = 2026 (partial)
Since 1931, annual totals have trended +0.14" per decade, about +1.3" 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 Poughkeepsie is tracking against normal, year to date

Daily High Temperature vs Normal

Above normal Below normal

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

Precipitation, Year to Date

22.13"
2026 YTD
Normal: 28.57"
-6.44"
1.06"
September so far
September normal: 4.33"
-3.27"
3
2026 heavy rain days
Days with ≥ 1.0"

Accumulation vs. Normal

Running total since Jan 1 against the normal pace for the same date · Poughkeepsie is 6.44" behind the normal pace

Period Review — Sep 1 – Sep 10, 2026

Any window, evaluated against every other year on record — 10 days

Quick picks: Last 7 days Last 30 days Last 90 days This month
Seasons: Spring (Mar–May) Summer (Jun–Aug) Fall (Sep–Nov)
68.6°F
Average temperature
39th-warmest of 95
+0.8°
vs. average
Normal: 67.8°F (1991–2020)

Average Temperature by Year — Sep 1 – Sep 10

1931–2026 · 2026 highlighted

Precipitation by Year — Sep 1 – Sep 10

1931–2025 · 2026 highlighted · trend +0.04" per decade (wetter since 1931)

Warmest Sep 1 – Sep 10 on Record

# Year Avg Temp
1 1961 77.9°F
2 2015 76.1°F
3 1959 75.6°F
4 1945 74.9°F
5 2023 74.2°F
6 1947 72.8°F
7 1971 72.6°F
8 1933 72.4°F
9 1943 72.2°F
10 1932 72.0°F

Coolest Sep 1 – Sep 10 on Record

# Year Avg Temp
1 1984 59.1°F
2 1988 60.3°F
3 2017 60.5°F
4 1951 60.8°F
5 1949 61.2°F
6 1938 61.3°F
7 1975 61.5°F
8 1986 61.5°F
9 1976 61.7°F
10 1994 61.8°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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