PlainClimate
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Patuxent River, MD Climate

Temperature, precipitation, and comfort score from NOAA NCEI 1991-2020 normals →

30-year climate normals from 1 weather station (1991-2020).

Patuxent River, Maryland has an average annual temperature of 58°F and a climate comfort score of 77/100 (Good). Annual precipitation totals 45.3", including 12.5" of snow. Based on NOAA 30-year normals (1991–2020).

Avg Temperature

58°F (15°C)

Avg High

67°F

Avg Low

50°F

Annual Precip

45.3"

Annual Snow

12.5"

Comfort Score

77/100

Good

Climate Comfort Score

77/100

Good

Avg Annual Temperature

58°F

30-year mean (NOAA NCEI)

Annual Precipitation

45.3"

Plus 12.5" of snow

Comfort score vs national 100-point ceiling (Patuxent River) 77.0%
National median (≈55)

PlainClimate composite — temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Patuxent River area.

Warming context for Patuxent River

Methodology

How the U.S. land temperature anomaly tracks against the global mean since 1900. The current NOAA 1991-2020 normal for Patuxent River 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 45°F (7°C) 30°F (-1°C) 37°F (3°C)
February 48°F (9°C) 31°F (-1°C) 39°F (4°C)
March 55°F (13°C) 37°F (3°C) 46°F (8°C)
April 66°F (19°C) 47°F (8°C) 57°F (14°C)
May 75°F (24°C) 57°F (14°C) 66°F (19°C)
June 83°F (28°C) 66°F (19°C) 75°F (24°C)
July 87°F (31°C) 71°F (22°C) 79°F (26°C)
August 85°F (30°C) 69°F (21°C) 77°F (25°C)
September 79°F (26°C) 63°F (17°C) 71°F (22°C)
October 69°F (21°C) 52°F (11°C) 60°F (16°C)
November 58°F (15°C) 41°F (5°C) 50°F (10°C)
December 50°F (10°C) 34°F (1°C) 42°F (5°C)

Monthly Precipitation

Average monthly rainfall and snowfall

January 2.9"

Snow: 3.9"

9.6 days with precipitation

February 2.8"

Snow: 6.0"

9.2 days with precipitation

March 4.0"

Snow: 1.3"

11.2 days with precipitation

April 3.7"

10.7 days with precipitation

May 3.7"

11.6 days with precipitation

June 4.3"

10.6 days with precipitation

July 4.5"

10.1 days with precipitation

August 4.7"

9.1 days with precipitation

September 4.2"

8.9 days with precipitation

October 4.0"

8.6 days with precipitation

November 3.1"

8.4 days with precipitation

December 3.5"

Snow: 1.3"

10.4 days with precipitation

Frost Dates & Growing Season

First Fall Freeze

November 15

50% probability date

Last Spring Freeze

March 29

50% probability date

Heating & Cooling Degree Days

Annual totals indicate energy demand for heating and cooling

Heating Degree Days

3,927

Higher = more heating needed

Cooling Degree Days

1,507

Higher = more cooling needed

Warmest Month

July

Coldest Month

January

Humidity & Wind

Monthly averages from hourly observations

Month Humidity Wind (mph)
January 64% 8.8
February 63% 9.8
March 62% 9.6
April 66% 8.9
May 70% 7.9
June 70% 7.1
July 73% 6.8
August 72% 7.1
September 72% 7.7
October 68% 8.4
November 66% 8.6
December 65% 8.5

Related Data

Climate Guides

Climate Insight: Patuxent River, MD

The NOAA 1991–2020 climate normals describe Patuxent River, Maryland as a location with an annual average temperature of 58°F, ranging from a mean daily high of 67°F to a mean daily low of 50°F. July is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USW00013721, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Precipitation patterns matter as much as temperature for anyone planning to live, garden, or travel here. Patuxent River receives roughly 45.3 inches of precipitation each year, with 12.5 inches typically falling as snow. Growing-season length varies with elevation and microclimate, with the last spring freeze near March 29 and the first fall freeze near November 15. For energy use, 3,927 heating degree days and 1,507 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Patuxent River scores 77/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Use the monthly tables above to plan around specific windows — shoulder seasons for mild highs and lows, peak summer for July-driven heat, or deep winter for January-driven cold. All figures here are thirty-year averages: any single year may run warmer, wetter, drier, or cooler than the normal, so treat them as planning guidance rather than forecasts.

Frequently Asked Questions

What is the average temperature in Patuxent River, MD?
The average annual temperature in Patuxent River, Maryland is 58°F. The warmest month averages 87°F (31°C) and the coldest averages 30°F (-1°C).
How much rain does Patuxent River get?
Patuxent River receives 45.3 inches of precipitation annually, including 12.5 inches of snow. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Patuxent River?
Patuxent River has a climate comfort score of 77/100 (Good). This score considers temperature mildness, humidity, precipitation, and extreme weather frequency.
When is the growing season in Patuxent River?
Growing season data is not available for Patuxent River.
How much energy does heating and cooling require in Patuxent River?
Patuxent River has 3,927 heating degree days and 1,507 cooling degree days annually. Higher heating degree days indicate greater winter energy demand, while higher cooling degree days indicate greater summer cooling needs.
Where does this Patuxent River climate data come from?
All climate data comes from NOAA U.S. Climate Normals v1.0.1, covering the 30-year period from 1991 to 2020. Data is collected from weather station USW00013721. These 30-year averages are the standard reference for typical weather conditions.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00013721. For informational purposes only.

Related

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