Climate for Station: Dayton 1 Wsw, Washington, United States
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Station Statistics
10-Year Trend
High: +0.15 °C/decade
Low: +0.41 °C/decade
Rain: -0.27 mm/decade
25-Year Trend
High: +0.12 °C/decade
Low: +0.31 °C/decade
Rain: +0.09 mm/decade
50-Year Trend
High: -0.05 °C/decade
Low: +0.04 °C/decade
Rain: +0.02 mm/decade
All-Time Trend
High: -0.00 °C/decade
Low: +0.01 °C/decade
Rain: -0.01 mm/decade
Percentage Above-Average Days
Last 12 Months: 51.0%
This Year: 91.7%
Precipitation Concentration Index (PCI) ℹ️
Last 12 Months: 12.9
Historical Average: 13.5
Percentile Rank of Last 12 Months ℹ️
High: 68th percentile
Low: 88th percentile
Rain: 50th percentile
Change in Variance ℹ️
High: +4.4%
Low: +6.9%
Intraday: -18.3%
Data Coverage
83.2%
First Year of Data
1898
Station Location
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 | 45.6 °C | — | -19.4 °C | 34.8 °C | — | -21.1 °C | 30.0 °C | — | -30.0 °C | 53.8 mm | — | 445.0 mm | — |
| January | 21.1 °C | 4.4 °C | -16.7 °C | 12.2 °C | 0.5 °C | -18.8 °C | 13.9 °C | -3.7 °C | -30.0 °C | 34.5 mm | 2.0 mm | 279.0 mm | 6.1 mm |
| February | 23.3 °C | 7.2 °C | -15.0 °C | 12.1 °C | 2.0 °C | -18.4 °C | 12.8 °C | -1.8 °C | -27.2 °C | 43.2 mm | 1.8 mm | 356.0 mm | 4.1 mm |
| March | 28.9 °C | 11.8 °C | -6.1 °C | 18.5 °C | 5.8 °C | -8.1 °C | 13.9 °C | 0.8 °C | -16.7 °C | 52.8 mm | 1.8 mm | 152.0 mm | 1.4 mm |
| April | 33.9 °C | 16.2 °C | -1.7 °C | 21.5 °C | 9.3 °C | 0.5 °C | 15.0 °C | 3.4 °C | -11.1 °C | 31.2 mm | 1.3 mm | 127.0 mm | 0.2 mm |
| May | 38.3 °C | 20.8 °C | 3.9 °C | 28.9 °C | 14.0 °C | 4.5 °C | 18.3 °C | 6.8 °C | -7.8 °C | 53.8 mm | 1.3 mm | 0.0 mm | 0.0 mm |
| June | 43.9 °C | 25.0 °C | 1.1 °C | 34.8 °C | 18.3 °C | 8.0 °C | 25.6 °C | 10.0 °C | -5.6 °C | 41.1 mm | 1.1 mm | 0.0 mm | 0.0 mm |
| July | 42.8 °C | 30.6 °C | 10.6 °C | 33.1 °C | 23.0 °C | 11.3 °C | 30.0 °C | 12.7 °C | -1.1 °C | 36.1 mm | 0.4 mm | 0.0 mm | 0.0 mm |
| August | 45.6 °C | 29.8 °C | 8.3 °C | 32.2 °C | 22.6 °C | 11.4 °C | 25.0 °C | 12.3 °C | -2.2 °C | 46.2 mm | 0.4 mm | 0.0 mm | 0.0 mm |
| September | 40.6 °C | 24.4 °C | 3.9 °C | 28.9 °C | 17.5 °C | 4.4 °C | 22.0 °C | 8.5 °C | -8.9 °C | 35.6 mm | 0.8 mm | 0.0 mm | 0.0 mm |
| October | 33.3 °C | 17.7 °C | -3.9 °C | 21.4 °C | 10.6 °C | -4.1 °C | 17.8 °C | 3.9 °C | -13.9 °C | 37.6 mm | 1.3 mm | 81.0 mm | 0.1 mm |
| November | 26.7 °C | 9.6 °C | -13.9 °C | 16.7 °C | 4.2 °C | -17.9 °C | 14.4 °C | -0.0 °C | -23.3 °C | 50.5 mm | 2.2 mm | 234.0 mm | 1.4 mm |
| December | 20.6 °C | 5.0 °C | -19.4 °C | 15.8 °C | 0.0 °C | -21.1 °C | 13.3 °C | -2.6 °C | -29.4 °C | 52.3 mm | 2.1 mm | 445.0 mm | 4.8 mm |
Plots
Current Year Climate Trends vs Historical
Max Temperature this Year | 1 of 4
Climate 12-Month Moving Averages
Max Temperature 12-Month MA | 1 of 4
Daily Average Temperatures Throughout the Year
Average Max Temperature Throughout Year | 1 of 3
