PlainClimate
NOAA 1991–2020 normals 52°F annual avg Public-domain federal data

Blue Marsh Lake, PA Climate

Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →

52°F
Avg annual temp
64/100
Comfort score
48.4"
Annual precip
176d
Growing season

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.

52°F
annual average temperature (NOAA normal)
64/100
comfort score, milder than 51% of U.S. cities
48.4"
precipitation, annual total
176 days
frost-free days per growing season

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

Comfort score vs national 100-point ceiling (Blue Marsh Lake) 64.0%
National median (63)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Blue Marsh Lake area.

How Blue Marsh Lake compares to every U.S. city

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

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). This entry sits in this band. 70–80: 1,102 US cities (16%). Above this entry. 80–90: 778 US cities (11%). Above this entry. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

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

Warming context for Blue Marsh Lake

Methodology

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.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 37°F (3°C) 20°F (-7°C) 28°F (-2°C)
February 40°F (4°C) 21°F (-6°C) 30°F (-1°C)
March 49°F (9°C) 29°F (-2°C) 39°F (4°C)
April 62°F (17°C) 38°F (4°C) 50°F (10°C)
May 72°F (22°C) 49°F (9°C) 60°F (16°C)
June 80°F (27°C) 58°F (15°C) 69°F (21°C)
July 85°F (30°C) 63°F (17°C) 74°F (24°C)
August 83°F (29°C) 62°F (16°C) 73°F (23°C)
September 77°F (25°C) 54°F (12°C) 65°F (19°C)
October 65°F (18°C) 42°F (6°C) 53°F (12°C)
November 53°F (11°C) 33°F (0°C) 43°F (6°C)
December 42°F (6°C) 25°F (-4°C) 34°F (1°C)

Monthly Precipitation

Average monthly rainfall

January 3.3"
February 2.6"
March 3.9"
April 3.8"
May 3.8"
June 4.8"
July 5.2"
August 4.6"
September 5.0"
October 4.3"
November 3.2"
December 3.8"

Frost Dates & Growing Season

First Fall Freeze

October 19

50% probability date

Last Spring Freeze

April 26

50% probability date

Growing Season

176 days

Heating & Cooling Degree 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.

  • Gardeners get about 176 frost-free days, with the last spring freeze near April 26 - plan the planting calendar around it, not the regional average.
  • Energy bills track 5,717 heating and 843 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Blue Marsh Lake, PA

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.

Frequently Asked Questions

What is the average temperature in Blue Marsh Lake, PA?
The average annual temperature in Blue Marsh Lake, Pennsylvania is 52°F. The warmest month averages 85°F (30°C) and the coldest averages 20°F (-7°C).
How much rain does Blue Marsh Lake get?
Blue Marsh Lake receives 48.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Blue Marsh Lake?
Blue Marsh Lake has a climate comfort score of 64/100 (Good), milder than 51% of U.S. cities in the PlainClimate database.
When is the growing season in Blue Marsh Lake?
Blue Marsh Lake has approximately 176 frost-free days per year, with the last spring freeze around April 26 and the first fall freeze around October 19.
How much energy does heating and cooling require in Blue Marsh Lake?
Blue Marsh Lake has 5,717 heating degree days and 843 cooling degree days annually, a heating-dominated climate. See our <a href="/guides/reading-weather-data/" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Blue Marsh Lake climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00360785 near Blue Marsh Lake.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00360785. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

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.