Climate for Station: Vancouver 4 Nne, Washington, United States
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Climate Analysis & Overview
The climate profile for Vancouver 4 Nne, Washington, reveals a nuanced interplay between long-term cooling trends and recent warming patterns. Despite a slight cooling over the all-time scale, the past decade has seen a notable warming in both high and low temperatures. Precipitation is becoming marginally more evenly distributed, suggesting subtle shifts in local weather dynamics.
Climate Classification and Geographic Influence
Vancouver 4 Nne, located in Clark County, Washington, falls under the Köppen climate classification of Csb, indicating a warm-summer Mediterranean climate. This classification is characterised by dry summers and mild, wet winters. The station's proximity to the Columbia River and the Cascade Range influences its climate, moderating temperatures and contributing to its distinctive precipitation patterns.
Temperature Trends: A Tale of Two Timelines
The all-time temperature trends for Vancouver 4 Nne indicate a slight cooling, with highs showing a decrease of 0.01°C (0.02°F) and lows falling by 0.07°C (0.13°F). However, the past decade has presented a contrasting narrative, with highs rising by 1.01°C (1.82°F) and lows increasing by 0.97°C (1.75°F). This recent warming trend may be reflective of broader regional climate shifts, possibly influenced by urbanisation and global climate change.
Precipitation Patterns: Subtle Shifts
The Precipitation Concentration Index (PCI) for Vancouver 4 Nne has experienced a marginal decrease from a baseline of 13.95 to a current value of 13.79. This suggests a slight move towards more evenly distributed precipitation events, indicating a potential shift in the frequency and intensity of rainfall. While the change is not drastic, it may have implications for local water management and agricultural practices.
Temperature Extremes: Record Highs and Lows
Vancouver 4 Nne's climate extremes are marked by a record high of 44.4°C (111.9°F) and a record low of -20.6°C (-5.1°F). These extremes underscore the variability inherent in the region's climate, influenced by both natural and anthropogenic factors. Such temperature records are critical for understanding the potential impacts of extreme weather events on local communities and infrastructure.
Regional Context and Implications
The climate trends observed at Vancouver 4 Nne are set against the backdrop of the United States' regional climate goals, which aim to mitigate the impacts of climate change through emission reductions and increased resilience. Recent weather events, such as heatwaves and heavy rainfall, highlight the importance of these goals. The observed warming trend over the past decade may serve as a call to action for policymakers and stakeholders to address the challenges posed by a changing climate.
Station Statistics
10-Year Trend
High: +1.01 °C/decade
Low: +0.97 °C/decade
Rain: -0.24 mm/decade
25-Year Trend
High: +0.00 °C/decade
Low: +0.02 °C/decade
Rain: +0.22 mm/decade
50-Year Trend
High: +0.10 °C/decade
Low: +0.18 °C/decade
Rain: +0.18 mm/decade
All-Time Trend
High: -0.01 °C/decade
Low: -0.07 °C/decade
Rain: +0.17 mm/decade
Percentage Above-Average Days
Last 12 Months: 47.1%
This Year: 78.7%
Precipitation Concentration Index (PCI) ℹ️
Last 12 Months: 13.8
Historical Average: 14.0
Percentile Rank of Last 12 Months ℹ️
High: 89th percentile
Low: 85th percentile
Rain: 82nd percentile
Change in Variance ℹ️
High: +9.0%
Low: +13.1%
Intraday: +0.8%
Data Coverage
88.6%
First Year of Data
1856
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 | 44.4 °C | — | -10.0 °C | 32.8 °C | — | -16.0 °C | 23.9 °C | — | -20.6 °C | 118.1 mm | — | 396.0 mm | — |
| January | 18.3 °C | 7.2 °C | -10.0 °C | 14.8 °C | 4.3 °C | -12.6 °C | 11.7 °C | 0.3 °C | -20.6 °C | 87.6 mm | 5.5 mm | 381.0 mm | 2.8 mm |
| February | 22.8 °C | 9.8 °C | -10.0 °C | 15.2 °C | 6.0 °C | -16.0 °C | 15.0 °C | 1.2 °C | -17.8 °C | 79.8 mm | 4.6 mm | 178.0 mm | 1.1 mm |
| March | 28.3 °C | 12.8 °C | -1.1 °C | 18.3 °C | 8.2 °C | -2.9 °C | 13.3 °C | 2.8 °C | -7.8 °C | 55.0 mm | 3.8 mm | 127.0 mm | 0.2 mm |
| April | 32.2 °C | 16.2 °C | 3.9 °C | 23.3 °C | 10.9 °C | 4.1 °C | 15.0 °C | 4.6 °C | -5.0 °C | 42.4 mm | 2.8 mm | 0.0 mm | 0.0 mm |
| May | 37.2 °C | 19.6 °C | 8.3 °C | 27.2 °C | 14.2 °C | 4.6 °C | 18.9 °C | 7.5 °C | -2.2 °C | 38.1 mm | 2.1 mm | 0.0 mm | 0.0 mm |
| June | 44.4 °C | 22.5 °C | 11.1 °C | 32.8 °C | 17.1 °C | 9.6 °C | 20.6 °C | 10.3 °C | 1.1 °C | 49.2 mm | 1.6 mm | 0.0 mm | 0.0 mm |
| July | 41.1 °C | 26.2 °C | 13.9 °C | 31.8 °C | 20.1 °C | 12.3 °C | 23.9 °C | 12.1 °C | 2.8 °C | 44.5 mm | 0.5 mm | 0.0 mm | 0.0 mm |
| August | 40.0 °C | 26.4 °C | 13.9 °C | 30.5 °C | 20.0 °C | 12.4 °C | 21.5 °C | 12.0 °C | 1.7 °C | 37.8 mm | 0.7 mm | 0.0 mm | 0.0 mm |
| September | 39.4 °C | 23.3 °C | 9.4 °C | 26.8 °C | 17.5 °C | 8.8 °C | 20.0 °C | 9.5 °C | -2.2 °C | 74.2 mm | 1.7 mm | 0.0 mm | 0.0 mm |
| October | 32.2 °C | 17.5 °C | 2.8 °C | 22.2 °C | 12.5 °C | 3.3 °C | 19.4 °C | 6.2 °C | -7.2 °C | 88.8 mm | 3.1 mm | 0.0 mm | 0.0 mm |
| November | 22.2 °C | 11.3 °C | -4.4 °C | 18.3 °C | 7.8 °C | -7.1 °C | 15.0 °C | 3.3 °C | -14.4 °C | 91.4 mm | 5.9 mm | 114.0 mm | 0.1 mm |
| December | 18.3 °C | 7.7 °C | -9.4 °C | 16.5 °C | 5.1 °C | -11.7 °C | 14.4 °C | 1.2 °C | -18.3 °C | 118.1 mm | 6.2 mm | 396.0 mm | 0.8 mm |
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
