State guides · Pennsylvania · Climate by town
Confluence, PA rainfall, snowfall and frost dates
Thirty-year averages for Confluence from NOAA’s 1991–2020 U.S. Climate Normals: rain and snow by month, the last and first freeze, the growing season, and a frost check for any date.
Confluence averages 47.21 in. of precipitation and 61.2 in. of snow a year. The median last spring freeze (32°F) is April 30 and the median first fall freeze is Oct. 18, a growing season of about 171 days. From NOAA’s Confluence 1 SW Dam station; checked Nov. 13, 2026.
Is it safe to plant in Confluence yet?
Dates from January through July check the last spring freeze. Dates from August on check the first fall freeze.
From NOAA’s freeze probabilities for this station. Low spots and valleys can freeze later in spring and earlier in fall than the station.
Confluence frost dates
| 32°F freeze | 9 in 10 years | 1 in 2 years | 1 in 10 years |
|---|---|---|---|
| Last spring freeze comes after | April 17 | April 30 | May 18 |
| First fall freeze comes before | Oct. 31 | Oct. 18 | Oct. 4 |
Hard freeze (28°F): the median last one in spring is April 18 and the median first one in fall is Oct. 29. The growing season between the median 32°F freezes, April 30 to Oct. 18, runs about 171 days.
Planting tender plants after May 18 means a freeze afterward in only about 1 year in 10. Planting on April 30 leaves even odds. For lawn seeding windows, see our Pennsylvania grass seed guide.
Confluence rain and snow by month
| Month | Precipitation (in.) | Snow (in.) | Avg high (°F) | Avg low (°F) |
|---|---|---|---|---|
| January | 3.61 | 18.3 | 36.9 | 18.8 |
| February | 3.41 | 16.9 | 40.5 | 20.1 |
| March | 3.90 | 10.3 | 49.5 | 26.6 |
| April | 4.04 | 0.9 | 62.7 | 36.4 |
| May | 4.92 | 0.0 | 72.1 | 47.0 |
| June | 4.86 | 0.0 | 79.8 | 55.7 |
| July | 4.54 | 0.0 | 83.5 | 59.7 |
| August | 4.02 | 0.0 | 82.2 | 58.6 |
| September | 3.97 | 0.0 | 76.1 | 51.7 |
| October | 3.35 | 0.2 | 64.4 | 40.1 |
| November | 3.07 | 3.7 | 51.8 | 30.1 |
| December | 3.52 | 10.9 | 41.2 | 24.4 |
| Year | 47.21 | 61.2 | Average 50.4°F | |
Precipitation is rain plus the water in melted snow and ice. Snow is the depth of new snowfall. Monthly figures are NOAA’s normals and may not add exactly to the yearly totals because of rounding.
- Wettest month: May, 4.92 in. Driest: November, 3.07 in.
- Snowiest month: January, 18.3 in. Months averaging 1 in. or more: November through March. December through February bring about 75% of the year’s snow.
- Average lows at or below 32°F: November through March.
- Coldest nights: January, average low 18.8°F. Warmest days: July, average high 83.5°F.
Planning outdoor work in Confluence
Average lows sit at or below freezing from November through March, so plan base work, planting and seeding around the frost dates above. Frost depth and ground snow load for footings and roofs are set by your town; our design criteria by ZIP tool shows who sets them for your address. For planting beds, start with a soil test.
Towns near Confluence
| Town | Miles | Precip. (in.) | Snow (in.) | Median last freeze | Median first freeze |
|---|---|---|---|---|---|
| Meyersdale | 17 | 41.68 | 45.7 | May 12 | Oct. 5 |
| Uniontown | 20 | 44.35 | 28.1 | April 30 | Oct. 18 |
| Mount Pleasant | 30 | 43.94 | 29.8 | May 1 | Oct. 13 |
| Donora | 37 | 40.85 | 21.4 | April 27 | Oct. 22 |
| Waynesburg | 43 | 43.07 | 30.1 | May 3 | Oct. 15 |
| Washington | 51 | 41.34 | 31.9 | April 24 | Oct. 23 |
Miles are straight-line distances between NOAA stations. See every town on our Pennsylvania rainfall and snowfall by town chart.
Questions
How much snow does Confluence, PA get a year?
Confluence averages 61.2 in. of snow a year, per NOAA’s 1991–2020 normals for its Confluence 1 SW Dam station. The snowiest month is January, at 18.3 in.
How much rain does Confluence, PA get a year?
Confluence averages 47.21 in. of precipitation a year, counting rain and melted snow. The wettest month is May, at 4.92 in.
When is the last frost in Confluence, PA?
The median last 32°F freeze in Confluence is April 30. In 1 year in 10 it comes after May 18, and in 9 years in 10 after April 17.
When is the first frost in Confluence, PA?
The median first 32°F freeze in Confluence is Oct. 18. In 1 year in 10 it comes before Oct. 4, and in 9 years in 10 before Oct. 31.
How long is the growing season in Confluence?
About 171 days between the median last and first 32°F freezes, April 30 to Oct. 18.
What is the coldest month in Confluence?
January, with an average low of 18.8°F and an average high of 36.9°F.
About this data
Station: NOAA’s Confluence 1 SW Dam station (GHCN USC00361705), about 1 mile southwest of Confluence, elevation 1,490 ft, 39.799° N, 79.366° W. These are NOAA’s 1991–2020 U.S. Climate Normals, 30-year averages that NOAA recomputes every 10 years. NOAA rates this station’s precipitation normals standard, its snow normals provisional and its temperature and freeze normals representative. Standard means at least 24 years of data, with missing months filled from nearby stations. Provisional means at least 10 years of data, with gaps NOAA could not fill from nearby stations. Representative means at least 10 years of data, with missing months filled from nearby stations.
Your yard can differ from the station. Elevation, valleys and hillsides change how much snow falls and when the first and last freezes come.
Sources: NOAA NCEI, U.S. Climate Normals; annual and seasonal normals for USC00361705; monthly normals for USC00361705; NOAA normals file documentation. Checked Nov. 13, 2026.
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See landscape designAll Pennsylvania townsAlso: Pennsylvania grass seed guide, soil testing, design criteria by ZIP.
Muthler Landscaping & Construction LLC · 913 Bellefonte Ave, Lock Haven, PA 17745 · (570) 397-9800 · PA HIC #PA212584. Climate data from NOAA; not a forecast.
Using this guide? Link to it or cite it. It's free to use with a link back, and we keep it updated against official sources.
Cite as: Muthler Landscaping & Construction, “Confluence, PA Rainfall, Snowfall and Frost Dates,” https://muthlerlandscaping.com/state-guides/pennsylvania/climate/confluence/ (last checked November 13, 2026).
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