Climate Sandown - New Hampshire
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 33 | 38 | 45 | 58 | 67 | 77 |
| Average low in ºF Av. low Lo | 14 | 17 | 24 | 34 | 44 | 54 |
| Av. precipitation in inch Av. precip. Pre. | 3.27 | 3.43 | 4.48 | 4.40 | 4.04 | 4.18 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 82 | 80 | 73 | 61 | 49 | 38 |
| Average low in ºF Av. low Lo | 60 | 58 | 50 | 38 | 30 | 20 |
| Av. precipitation in inch Av. precip. Pre. | 3.74 | 3.58 | 3.94 | 4.44 | 4.47 | 4.21 |
What is the average weather in Sandown, New Hampshire?
Sandown experiences a humid continental climate, marked by a very large seasonal temperature contrast. Summers are warm, while winters are cold. The inland location amplifies these temperature swings. Precipitation is fairly wet overall, spread relatively evenly throughout the year, with a modest seasonal pattern.
Sandown Climate Graph - New Hampshire Climate Chart
Daily normals Sandown - New Hampshire - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 34.8 | 16.8 | 0.11 | 0.11 | 0.50 | 0.50 |
| 2 Jan | 34.6 | 16.5 | 0.22 | 0.22 | 1.00 | 1.00 |
| 3 Jan | 34.5 | 16.3 | 0.32 | 0.32 | 1.50 | 1.50 |
| 4 Jan | 34.3 | 16.1 | 0.43 | 0.43 | 2.00 | 2.00 |
| 5 Jan | 34.1 | 15.9 | 0.55 | 0.55 | 2.60 | 2.60 |
| 6 Jan | 34.0 | 15.7 | 0.66 | 0.66 | 3.10 | 3.10 |
| 7 Jan | 33.9 | 15.5 | 0.77 | 0.77 | 3.70 | 3.70 |
| 8 Jan | 33.7 | 15.4 | 0.87 | 0.87 | 4.30 | 4.30 |
| 9 Jan | 33.6 | 15.2 | 0.97 | 0.97 | 4.90 | 4.90 |
| 10 Jan | 33.5 | 15.1 | 1.07 | 1.07 | 5.50 | 5.50 |
| 11 Jan | 33.4 | 14.9 | 1.16 | 1.16 | 6.10 | 6.10 |
| 12 Jan | 33.3 | 14.8 | 1.26 | 1.26 | 6.60 | 6.60 |
| 13 Jan | 33.2 | 14.6 | 1.36 | 1.36 | 7.20 | 7.20 |
| 14 Jan | 33.2 | 14.5 | 1.45 | 1.45 | 7.70 | 7.70 |
| 15 Jan | 33.1 | 14.4 | 1.54 | 1.54 | 8.30 | 8.30 |
| 16 Jan | 33.1 | 14.3 | 1.63 | 1.63 | 8.80 | 8.80 |
| 17 Jan | 33.0 | 14.2 | 1.72 | 1.72 | 9.30 | 9.30 |
| 18 Jan | 33.0 | 14.1 | 1.80 | 1.80 | 9.80 | 9.80 |
| 19 Jan | 33.0 | 14.1 | 1.89 | 1.89 | 10.30 | 10.30 |
| 20 Jan | 33.0 | 14.0 | 1.97 | 1.97 | 10.80 | 10.80 |
| 21 Jan | 33.0 | 14.0 | 2.06 | 2.06 | 11.30 | 11.30 |
| 22 Jan | 33.0 | 13.9 | 2.15 | 2.15 | 11.80 | 11.80 |
| 23 Jan | 33.0 | 13.9 | 2.24 | 2.24 | 12.40 | 12.40 |
| 24 Jan | 33.1 | 13.9 | 2.33 | 2.33 | 12.90 | 12.90 |
| 25 Jan | 33.2 | 13.9 | 2.43 | 2.43 | 13.50 | 13.50 |
| 26 Jan | 33.2 | 13.9 | 2.53 | 2.53 | 14.20 | 14.20 |
| 27 Jan | 33.3 | 13.9 | 2.63 | 2.63 | 14.80 | 14.80 |
| 28 Jan | 33.4 | 13.9 | 2.72 | 2.72 | 15.50 | 15.50 |
| 29 Jan | 33.5 | 13.9 | 2.81 | 2.81 | 16.10 | 16.10 |
| 30 Jan | 33.6 | 14.0 | 2.91 | 2.91 | 16.80 | 16.80 |
| 31 Jan | 33.8 | 14.0 | 3.02 | 3.02 | 17.50 | 17.50 |
Weather history Sandown - September 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Sep | 79.0 | 55.0 | T | 0.00 | 0.0 |
| 02 Sep | 66.0 | 57.0 | 0.41 | 0.00 | 0.0 |
| 03 Sep | 70.0 | 60.1 | 0.16 | 0.00 | 0.0 |
| 04 Sep | 72.0 | 60.1 | 0.01 | 0.00 | 0.0 |
| 05 Sep | 82.0 | 60.1 | 0.00 | 0.00 | 0.0 |
| 06 Sep | 73.0 | 53.1 | 0.09 | 0.00 | 0.0 |
| 07 Sep | - | - | - | - | - |
| 08 Sep | - | - | - | - | - |
| 09 Sep | - | - | - | - | - |
| 10 Sep | - | - | - | - | - |
| 11 Sep | - | - | - | - | - |
| 12 Sep | - | - | - | - | - |
| 13 Sep | - | - | - | - | - |
| 14 Sep | - | - | - | - | - |
| 15 Sep | - | - | - | - | - |
| 16 Sep | - | - | - | - | - |
| 17 Sep | - | - | - | - | - |
| 18 Sep | - | - | - | - | - |
| 19 Sep | - | - | - | - | - |
| 20 Sep | - | - | - | - | - |
| 21 Sep | - | - | - | - | - |
| 22 Sep | - | - | - | - | - |
| 23 Sep | - | - | - | - | - |
| 24 Sep | - | - | - | - | - |
| 25 Sep | - | - | - | - | - |
| 26 Sep | - | - | - | - | - |
| 27 Sep | - | - | - | - | - |
| 28 Sep | - | - | - | - | - |
| 29 Sep | - | - | - | - | - |
| 30 Sep | - | - | - | - | - |
Past weather Sandown
| Sep 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 73.7 ºF | 33 ºF | |
| Average low temperature Av. low temp. | 57.6 ºF | 14 ºF | |
| Total precipitation Total precip. | 0.67 inch | 3.27 inch | |
| Total snowfall Total snowfall | 0.00 inch | 0 inch | |
| Highest max temperature Highest max temp. | 82.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 66.0 ºF | - | |
| Highest min temperature Highest min temp. | 60.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 53.1 ºF | - | |
Past weather September 2026 incomplete - Missing data
Geo Sandown - New Hampshire
| Country | United States | |
|---|---|---|
| State | New Hampshire | |
| County | - | |
| City | Sandown | |
| Zip Code | 3873 | |
| Longitude | -71.19 dec. degr. | |
| Latitude | 42.93 dec. degr. | |
| Altitude - Elevation | 226ft | |
| ICAO | - | |
| IATA | - |
Date and Time Sandown - New Hampshire
| Local Time | 01:57 AM | |
|---|---|---|
| Sunrise | 06:17 AM | |
| Sunset | 07:05 PM | |
| Day/Night | Night | |
| Timezone | Eastern Daylight Time | |
| Timezone DB | America - New York |
Map of Sandown - New Hampshire
USGS National Map — Open interactive map
Sandown weather averages
| Annual high temperature | 58ºF |
| Annual low temperature | 37ºF |
| Average annual precip. | 48.18 inch |
Station Data
Monthly averages Sandown
Longitude: -71.187, Latitude: 42.9287
Average weather Sandown, NH - 3873
Monthly: 1991-2020 normals
History: 2008-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...