Weather in New Haven, CT
New Haven, Tuesday, 20 October, 09:09
Clear. Feels like 51°. High 68°, low 43°.
Monthly outlook for New Haven, CT: average high 57.9°, average low 41.3°. That is 0.3° below the climate normal for October. Precipitation is expected on 1 day (about 1.3 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 27 October (68.9°), the coolest 24 October (34.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 60.1° | 59.2° | +0.5° |
| 30 October – 8 November | 54.4° | 56.1° | -1° |
| 9 November – 18 November | at normal | 51.5° | — |
October records over 66 years
0New Haven, Wednesday, 21 October
Clear. High 61°, low 40°.
0New Haven, Thursday, 22 October
Clear. High 62°, low 40°.
0New Haven, Friday, 23 October
Clear. High 52°, low 39°.
0New Haven, Saturday, 24 October
Clear. High 57°, low 34°.
0New Haven, Sunday, 25 October
Clear. High 62°, low 38°.
0
New Haven, Monday, 26 October
Overcast. High 66°, low 46°.
0New Haven, Tuesday, 27 October
Overcast. High 69°, low 57°.
0New Haven, Wednesday, 28 October
Overcast. High 52°, low 38°.
0New Haven, Thursday, 29 October
Overcast. High 51°, low 37°.
0New Haven, Friday, 30 October
Overcast. High 55°, low 41°.
0New Haven, Saturday, 31 October
Overcast. High 56°, low 46°.
0New Haven, Sunday, 1 November
Clear. High 55°, low 41°.
0New Haven, Monday, 2 November
Clear. High 52°, low 38°.
0New Haven, Tuesday, 3 November
Clear. High 53°, low 39°.
1.33
New Haven, Wednesday, 4 November
Heavy rain. High 55°, low 44°.
0.14
New Haven, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09
New Haven, Friday, 6 November
Climate normal for this date — 60-year average.
0.09New Haven, Saturday, 7 November
Climate normal for this date — 60-year average.
0.16New Haven, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09New Haven, Monday, 9 November
Climate normal for this date — 60-year average.
0.15New Haven, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.15New Haven, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.15New Haven, Thursday, 12 November
Climate normal for this date — 60-year average.
0.21New Haven, Friday, 13 November
Climate normal for this date — 60-year average.
0.09New Haven, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12New Haven, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14New Haven, Monday, 16 November
Climate normal for this date — 60-year average.
0.13New Haven, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08New Haven, Wednesday, 18 November
Climate normal for this date — 60-year average.
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for New Haven, CT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in New Haven, CT since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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