Weather Reports for the city of Merion Station in Pennsylvania
snow
rain
temp
wind
humidity| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Average High (°F) | 42.5 | 45.5 | 54.8 | 66.4 | 76.4 | 84.2 |
| Average Low (°F) | 25.4 | 27.1 | 33.9 | 43.2 | 53.9 | 62.5 |
| All Time High (°F) | 71.1 | 79.0 | 84.0 | 89.1 | 94.6 | 99.0 |
| All Time Low (°F) | -2.2 | 1.9 | 5.0 | 21.2 | 29.3 | 41.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Average High (°F) | 89.3 | 86.1 | 80.8 | 69.4 | 57.1 | 48.5 |
| Average Low (°F) | 68.8 | 66.3 | 59.9 | 49.2 | 36.3 | 31.8 |
| All Time High (°F) | 105.1 | 98.1 | 97.0 | 97.0 | 80.1 | 72.0 |
| All Time Low (°F) | 49.6 | 46.4 | 1.0 | 27.1 | 12.2 | 8.6 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.1 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Avg. Rainfall (in) on Rainy Day | 0.3 | 0.3 | 0.4 | 0.4 | 0.4 | 0.4 |
| All Time Rainfall (in) on Rainy Day | 1.7 | 1.8 | 2.5 | 3.1 | 4.1 | 4.4 |
| 30 Day Rain Accumulation | 2.4 | 2.5 | 3.2 | 2.7 | 3.3 | 3.4 |
| All Time 30 Day Rain Accumulation | 5.8 | 6.8 | 7.5 | 7.1 | 7.8 | 10.2 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Rainy Days | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| Avg. Rainfall (in) on Rainy Day | 0.5 | 0.5 | 0.6 | 0.4 | 0.4 | 0.4 |
| All Time Rainfall (in) on Rainy Day | 8.3 | 6.1 | 4.9 | 4.3 | 2.6 | 2.1 |
| 30 Day Rain Accumulation | 4.2 | 4.0 | 3.2 | 3.1 | 2.1 | 3.2 |
| All Time 30 Day Rain Accumulation | 13.9 | 20.6 | 10.9 | 7.2 | 9.9 | 6.3 |
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 |
| Avg. Snowfall Depth (in) | 1.7 | 1.7 | 1.6 | 0.1 | 0.0 | 0.0 |
| 30 Day Snowfall Total (in) | 5.0 | 6.2 | 2.2 | 0.0 | 0.0 | 0.0 |
| All Time Snowfall Depth (in) | 21.0 | 10.0 | 11.0 | 0.7 | 0.0 | 0.0 |
| All Time 30 Day Snowfall Total (in) | 29.3 | 30.4 | 19.6 | 0.7 | 0.0 | 0.0 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Percent of Days with Snowfall | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Avg. Snowfall Depth (in) | 0.0 | 0.0 | 0.0 | 0.5 | 0.2 | 1.3 |
| 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 1.9 |
| All Time Snowfall Depth (in) | 0.0 | 0.0 | 0.0 | 1.6 | 1.2 | 9.1 |
| All Time 30 Day Snowfall Total (in) | 0.0 | 0.0 | 0.0 | 1.7 | 1.3 | 15.4 |
Instead of using humidity directly we use dew point to measure what people commonly mean when saying it feels humid. Dew point is classified into 4 categories: Dry (under 25°F), Comfortable (25°F to 60°F), Muggy (60°F to 70°F) and Oppressive (70°F or greater). The table below shows the percentage of days with a dew point within a particular class.
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| Dry | 58.6 | 53.8 | 40.0 | 12.4 | 0.4 | 0.0 |
| Comfortable | 41.4 | 46.2 | 60.0 | 85.4 | 76.7 | 45.5 |
| Muggy | 0.0 | 0.0 | 0.0 | 2.2 | 22.7 | 48.8 |
| Oppressive | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 5.7 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| Dry | 0.0 | 0.0 | 0.0 | 0.1 | 18.3 | 37.4 |
| Comfortable | 16.5 | 25.5 | 53.5 | 85.4 | 80.9 | 62.1 |
| Muggy | 55.3 | 54.6 | 39.4 | 13.9 | 0.8 | 0.5 |
| Oppressive | 28.2 | 19.9 | 7.1 | 0.6 | 0.0 | 0.0 |
The table below shows the distribution of average wind speeds in miles per hour for a given month or day. Wind speed may vary throughout a day and we show the average speed. Peak gusts or sustained maximum speeds may be significantly higher.
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| 10th | 3.6 | 3.8 | 4.0 | 4.2 | 4.0 | 4.0 |
| 25th | 4.7 | 5.0 | 5.5 | 5.5 | 5.0 | 5.0 |
| 50th | 6.9 | 6.9 | 7.5 | 7.5 | 6.7 | 6.7 |
| 75th | 9.8 | 9.8 | 10.5 | 10.4 | 8.8 | 8.8 |
| 90th | 13.6 | 13.3 | 14.0 | 13.9 | 11.4 | 11.2 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| 10th | 3.9 | 3.6 | 3.4 | 3.5 | 3.7 | 3.4 |
| 25th | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 | 4.7 |
| 50th | 6.4 | 5.8 | 6.0 | 6.3 | 6.6 | 6.2 |
| 75th | 8.4 | 7.8 | 8.1 | 8.8 | 9.2 | 9.2 |
| 90th | 10.6 | 9.9 | 10.4 | 12.0 | 12.8 | 12.8 |
The table below shows the distribution of wind direction (wind coming out of a particular direction) for a given month or day. Wind direction may vary throughout a day and the computation accounts for all measured changes in direction througout the day or month.
| Jan | Feb | Mar | Apr | May | Jun | |
|---|---|---|---|---|---|---|
| North | 11.0 | 11.2 | 13.2 | 10.2 | 6.2 | 7.8 |
| NorthEast | 9.8 | 11.5 | 11.5 | 8.6 | 12.2 | 8.6 |
| East | 6.7 | 9.6 | 12.8 | 14.7 | 21.3 | 12.5 |
| SouthEast | 2.3 | 2.8 | 5.0 | 5.2 | 7.4 | 7.0 |
| South | 8.5 | 8.7 | 8.6 | 13.3 | 12.6 | 14.8 |
| SouthWest | 11.6 | 12.4 | 10.6 | 12.3 | 15.4 | 19.0 |
| West | 27.4 | 25.0 | 18.2 | 19.2 | 14.7 | 18.5 |
| NorthWest | 22.7 | 18.8 | 20.1 | 16.3 | 10.1 | 11.7 |
| Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|
| North | 9.1 | 7.9 | 12.5 | 10.2 | 11.7 | 9.5 |
| NorthEast | 7.3 | 10.2 | 16.0 | 15.5 | 9.0 | 9.9 |
| East | 8.4 | 11.6 | 15.5 | 10.7 | 7.6 | 9.1 |
| SouthEast | 7.6 | 8.1 | 7.0 | 6.0 | 3.7 | 3.6 |
| South | 15.1 | 16.0 | 13.5 | 11.2 | 10.5 | 7.2 |
| SouthWest | 23.0 | 18.0 | 14.0 | 14.4 | 14.0 | 13.9 |
| West | 19.4 | 16.2 | 11.2 | 18.7 | 24.9 | 26.4 |
| NorthWest | 10.1 | 11.7 | 10.2 | 13.1 | 18.4 | 20.3 |