Hammonton and Williamstown have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Hammonton | Metric | Williamstown |
|---|---|---|
| 204 days | Sunny daysclear or partly cloudy skies | 204 days |
| 44 in | Precipitationper year | 43 in |
| 122 days | Wet daysrain or snow per year | 120 days |
| 19 in | Snowfallper year | 20 in |
| 27 days | Hot daysabove 90 °F | 24 days |
| 105 days | Freezing nightsat or below 32 °F | 103 days |
| 69% | Humidityaverage relative | 68% |
| 55 °F | Average temperatureyear round | 55 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hammonton high | 42 | 45 | 52 | 64 | 73 | 82 | 87 | 85 | 79 | 67 | 56 | 47 |
| Williamstown high | 42 | 45 | 52 | 64 | 73 | 82 | 87 | 85 | 79 | 67 | 56 | 46 |
| Hammonton low | 24 | 25 | 31 | 41 | 51 | 61 | 66 | 64 | 57 | 45 | 35 | 28 |
| Williamstown low | 24 | 26 | 32 | 41 | 51 | 61 | 67 | 65 | 58 | 45 | 36 | 29 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hammonton | 3.2 | 3.0 | 4.1 | 3.5 | 3.4 | 4.0 | 4.1 | 4.6 | 3.9 | 3.7 | 2.9 | 3.9 |
| Williamstown | 3.1 | 3.0 | 4.0 | 3.4 | 3.4 | 3.8 | 3.8 | 4.2 | 3.9 | 3.6 | 2.9 | 3.9 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hammonton | 17 | 16 | 16 | 15 | 16 | 16 | 18 | 19 | 17 | 19 | 17 | 17 |
| Williamstown | 17 | 16 | 16 | 15 | 16 | 16 | 19 | 19 | 18 | 19 | 17 | 17 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Hammonton vs another city
- Hammonton vs Atco, NJ
- Hammonton vs Berlin, NJ
- Hammonton vs Sicklerville, NJ
- Hammonton vs Pine Hill, NJ
- Hammonton vs Mays Landing, NJ
- Hammonton vs New York, NY
- Hammonton vs Los Angeles, CA
- Hammonton vs Chicago, IL
- Hammonton vs Houston, TX
- Hammonton vs Phoenix, AZ
- Hammonton vs Philadelphia, PA
Williamstown vs another city
- Williamstown vs Sicklerville, NJ
- Williamstown vs Clayton, NJ
- Williamstown vs Pine Hill, NJ
- Williamstown vs Berlin, NJ
- Williamstown vs Glassboro, NJ
- Williamstown vs Atco, NJ
- Williamstown vs New York, NY
- Williamstown vs Los Angeles, CA
- Williamstown vs Chicago, IL
- Williamstown vs Houston, TX
- Williamstown vs Phoenix, AZ
- Williamstown vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).