Weather in Londonderry, NH
Londonderry, Wednesday, 21 October, 16:34
Overcast. Feels like 54°. High 57°, low 41°.
Monthly outlook for Londonderry, NH: average high 57.1°, average low 37.3°. That is 1.1° above the climate normal for October. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 5 days and 2.0 inches. The warmest day looks like 22 October (66.4°), the coolest 5 November (29.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 57.8° | 56° | +1° |
| 31 October – 9 November | 56° | 52.6° | +1.9° |
| 10 November – 19 November | at normal | 47.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Manchester (8 mi).
0
Londonderry, Thursday, 22 October
Clear. High 66°, low 40°.
0Londonderry, Friday, 23 October
Clear. High 54°, low 33°.
0Londonderry, Saturday, 24 October
Clear. High 59°, low 31°.
0Londonderry, Sunday, 25 October
Clear. High 63°, low 33°.
0Londonderry, Monday, 26 October
Clear. High 66°, low 39°.
0
Londonderry, Tuesday, 27 October
Partly cloudy. High 56°, low 38°.
0Londonderry, Wednesday, 28 October
Overcast. High 48°, low 36°.
0.11
Londonderry, Thursday, 29 October
Light rain. High 63°, low 42°.
0Londonderry, Friday, 30 October
Clear. High 46°, low 33°.
0Londonderry, Saturday, 31 October
Clear. High 53°, low 35°.
0Londonderry, Sunday, 1 November
Overcast. High 63°, low 38°.
0Londonderry, Monday, 2 November
Overcast. High 63°, low 47°.
0.84Londonderry, Tuesday, 3 November
Rain. High 60°, low 51°.
0.64Londonderry, Wednesday, 4 November
Rain. High 51°, low 32°.
0Londonderry, Thursday, 5 November
Clear. High 46°, low 30°.
0.13
Londonderry, Friday, 6 November
Climate normal for this date — 60-year average.
0.06Londonderry, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Londonderry, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Londonderry, Monday, 9 November
Climate normal for this date — 60-year average.
0.16Londonderry, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.13Londonderry, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.12Londonderry, Thursday, 12 November
Climate normal for this date — 60-year average.
0.15Londonderry, Friday, 13 November
Climate normal for this date — 60-year average.
0.11Londonderry, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Londonderry, Sunday, 15 November
Climate normal for this date — 60-year average.
0.14Londonderry, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Londonderry, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Londonderry, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Londonderry, Thursday, 19 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 Londonderry, NH 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 Londonderry, NH 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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