Climate for Station: Atlantic City Marina, New Jersey, United States
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Climate Analysis & Overview
Atlantic City Marina's climate is experiencing a nuanced evolution, with a modest long-term warming trend in high temperatures, contrasting with a cooling trend in recent lows. Precipitation patterns have become more evenly distributed, suggesting shifts in local weather dynamics.
Coastal Climate Dynamics
Atlantic City Marina, located at 39.3778°N, 74.4236°W, falls under the humid subtropical climate classification (Cfa) according to the Köppen system. This climate is characterised by hot, humid summers and mild winters, influenced by its proximity to the Atlantic Ocean. The oceanic influence moderates temperature extremes, providing a buffer against severe cold and heat. However, the station's data reveals a complex interplay between long-term and recent temperature trends.
Temperature Trends: A Tale of Two Scales
Over the long term, Atlantic City has experienced a slight warming trend in high temperatures, with an increase of 0.16°C (0.29°F). This gradual rise aligns with broader regional climate goals to understand and mitigate the impacts of global warming. Conversely, the low temperatures have shown a more pronounced increase of 0.22°C (0.40°F), indicating a warming trend over the long haul. However, the last decade tells a different story. Highs have risen by 0.91°C (1.64°F), while lows have decreased by 0.80°C (1.44°F), suggesting recent cooling. This dichotomy highlights the importance of examining both short-term fluctuations and long-term trends.
Precipitation Patterns: A Shift Towards Evenness
The Precipitation Concentration Index (PCI) provides insight into how rainfall is distributed throughout the year. Atlantic City's PCI has decreased from a baseline of 11.58 to a current value of 10.44, indicating a more even distribution of precipitation events. This shift suggests that rainfall is less concentrated in intense storms and more spread out over time, which can have implications for water resource management and flood risk in the area.
Extreme Weather Records
The station's historical records highlight the potential for extreme weather events. The highest recorded temperature is 38.9°C (102.0°F), while the lowest is -22.8°C (-9.0°F). These extremes underscore the variability inherent in Atlantic City's climate, influenced by both oceanic and continental weather patterns.
Regional Implications and Future Considerations
As Atlantic City navigates these climatic shifts, understanding the implications for infrastructure, tourism, and local ecosystems becomes crucial. The observed trends in temperature and precipitation distribution provide valuable context for policymakers and stakeholders working towards sustainable development and climate resilience in the region.
Station Statistics
10-Year Trend
High: +1.63 °F/decade
Low: -1.44 °F/decade
Rain: -0.017 in/decade
25-Year Trend
High: +0.14 °F/decade
Low: +0.69 °F/decade
Rain: +0.007 in/decade
50-Year Trend
High: +0.43 °F/decade
Low: +0.88 °F/decade
Rain: +0.005 in/decade
All-Time Trend
High: +0.28 °F/decade
Low: +0.40 °F/decade
Rain: +0.001 in/decade
Percentage Above-Average Days
Last 12 Months: 61.6%
This Year: 40.4%
Precipitation Concentration Index (PCI) ℹ️
Last 12 Months: 10.4
Historical Average: 11.6
Percentile Rank of Last 12 Months ℹ️
High: 98th percentile
Low: 55th percentile
Rain: 33rd percentile
Change in Variance ℹ️
High: -8.1%
Low: -4.1%
Intraday: +7.2%
Data Coverage
86.7%
First Year of Data
1873
Station Location
Historical Weather Records
| Max High | Avg High | Min High | Max Avg | Avg Avg | Min Avg | Max Low | Avg Low | Min Low | Max Precipitation | Avg Precipitation | Max Snow | Avg Snow | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Record | 102.02 °F | — | 3.02 °F | 93.20 °F | — | -1.48 °F | 82.04 °F | — | -9.04 °F | 8.97 in | — | 17.99 in | — |
| January | 71.96 °F | 41.17 °F | 8.96 °F | 63.32 °F | 34.02 °F | -1.48 °F | 53.06 °F | 27.90 °F | -4.00 °F | 2.68 in | 0.11 in | 15.98 in | 0.13 in |
| February | 77.00 °F | 41.85 °F | 3.02 °F | 63.86 °F | 35.69 °F | 4.10 °F | 53.06 °F | 28.52 °F | -9.04 °F | 3.17 in | 0.12 in | 17.99 in | 0.17 in |
| March | 86.00 °F | 47.86 °F | 17.96 °F | 72.50 °F | 42.54 °F | 13.46 °F | 57.92 °F | 34.75 °F | 8.06 °F | 2.66 in | 0.13 in | 7.99 in | 0.08 in |
| April | 91.04 °F | 56.47 °F | 33.98 °F | 79.16 °F | 52.08 °F | 28.94 °F | 66.92 °F | 43.24 °F | 15.08 °F | 4.03 in | 0.11 in | 5.12 in | 0.01 in |
| May | 95.00 °F | 65.58 °F | 46.04 °F | 83.30 °F | 61.44 °F | 42.62 °F | 73.04 °F | 53.00 °F | 30.92 °F | 3.21 in | 0.10 in | 0.00 in | 0.00 in |
| June | 98.96 °F | 74.58 °F | 51.08 °F | 88.70 °F | 70.61 °F | 52.34 °F | 80.06 °F | 62.42 °F | 44.96 °F | 4.21 in | 0.10 in | 0.00 in | 0.00 in |
| July | 102.02 °F | 79.76 °F | 64.94 °F | 93.20 °F | 76.01 °F | 60.62 °F | 82.04 °F | 68.16 °F | 51.98 °F | 5.44 in | 0.13 in | 0.00 in | 0.00 in |
| August | 102.02 °F | 79.07 °F | 62.06 °F | 89.60 °F | 74.31 °F | 54.32 °F | 80.96 °F | 67.97 °F | 48.02 °F | 8.97 in | 0.14 in | 0.00 in | 0.00 in |
| September | 93.92 °F | 73.98 °F | 53.96 °F | 85.46 °F | 67.69 °F | 46.04 °F | 78.98 °F | 62.38 °F | 37.04 °F | 7.52 in | 0.11 in | 0.00 in | 0.00 in |
| October | 91.04 °F | 64.62 °F | 41.00 °F | 80.06 °F | 57.17 °F | 34.34 °F | 73.94 °F | 51.34 °F | 19.94 °F | 8.16 in | 0.11 in | 0.00 in | 0.00 in |
| November | 80.06 °F | 54.36 °F | 19.94 °F | 71.96 °F | 47.12 °F | 20.30 °F | 66.02 °F | 40.83 °F | 10.04 °F | 4.62 in | 0.11 in | 7.99 in | 0.02 in |
| December | 73.94 °F | 45.01 °F | 8.06 °F | 66.02 °F | 37.93 °F | 2.84 °F | 57.92 °F | 31.68 °F | -7.06 °F | 3.52 in | 0.12 in | 12.99 in | 0.08 in |
Data Visualisations
Remove WatermarksCurrent Year Climate Trends vs Historical






Max Temperature this Year | 1 of 6
Climate 12-Month Moving Averages






Max Temperature 12-Month MA | 1 of 6
Daily Data Points and Averages Throughout the Year





Average Max Temperature Throughout Year | 1 of 5
