Climate Comfort Score
64/100
Good
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Blue Marsh Lake
Blue Marsh Lake, Pennsylvania averages 52°F a year and scores 64/100 on the comfort index - good, milder than 51% of U.S. cities.
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
52°F (11°C)
Avg High
62°F
Avg Low
41°F
Annual Precip
48.4"
Comfort Score
64/100
Good
Climate Comfort Score
64/100
Good
Avg Annual Temperature
52°F
30-year mean (NOAA NCEI)
Annual Precipitation
48.4"
Liquid-equivalent total
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Blue Marsh Lake area.
Blue Marsh Lake's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
64 Top 49% higher than 51% of 6,915 US cities
Each bar is a band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Blue Marsh Lake captures average conditions across the spread shown, the most recent decade is warmer than the 30-year mean.
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 37°F (3°C) | 20°F (-7°C) | 28°F (-2°C) | 3.3" | 27.4 | 0.0 |
| February | 40°F (4°C) | 21°F (-6°C) | 30°F (-1°C) | 2.6" | 24.8 | 0.0 |
| March | 49°F (9°C) | 29°F (-2°C) | 39°F (4°C) | 3.9" | 20.1 | 0.0 |
| April | 62°F (17°C) | 38°F (4°C) | 50°F (10°C) | 3.8" | 6.9 | 0.0 |
| May | 72°F (22°C) | 49°F (9°C) | 60°F (16°C) | 3.8" | 0.6 | 0.5 |
| June | 80°F (27°C) | 58°F (15°C) | 69°F (21°C) | 4.8" | 0.0 | 2.6 |
| July | 85°F (30°C) | 63°F (17°C) | 74°F (24°C) | 5.2" | 0.0 | 7.4 |
| August | 83°F (29°C) | 62°F (16°C) | 73°F (23°C) | 4.6" | 0.0 | 3.9 |
| September | 77°F (25°C) | 54°F (12°C) | 65°F (19°C) | 5.0" | 0.1 | 1.2 |
| October | 65°F (18°C) | 42°F (6°C) | 53°F (12°C) | 4.3" | 4.4 | 0.1 |
| November | 53°F (11°C) | 33°F (0°C) | 43°F (6°C) | 3.2" | 15.7 | 0.0 |
| December | 42°F (6°C) | 25°F (-4°C) | 34°F (1°C) | 3.8" | 24.5 | 0.0 |
Average monthly rainfall
First Fall Freeze
October 19
50% probability date
Last Spring Freeze
April 26
50% probability date
Growing Season
176 days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
5,717
Higher = more heating needed
Cooling Degree Days
843
Higher = more cooling needed
Warmest Month
July
Coldest Month
January
What Blue Marsh Lake's climate means for you
Blue Marsh Lake runs 52°F a year - peaking in July, coldest in January.
These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.
Based on station USC00360785 feeding NOAA's 1991–2020 climate normals, Blue Marsh Lake, Pennsylvania averages 52°F a year, ranging from a mean daily high of 62°F to a mean daily low of 41°F. July is typically the warmest month of the year, while January is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Blue Marsh Lake sees about 48.4 inches of precipitation a year, predominantly as rainfall. The frost-free season averages 176 days, which directly shapes the planting calendar and growing potential for the area, with the last spring freeze near April 26 and the first fall freeze near October 19. On the energy side, 5,717 heating degree days and 843 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Blue Marsh Lake scores 64/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, July-driven heat at the peak of summer, and January-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00360785. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.